CN112069570B

CN112069570B - Design method, device and equipment for joint sealing gasket hole pattern and computer readable storage medium

Info

Publication number: CN112069570B
Application number: CN202010801972.6A
Authority: CN
Inventors: 肖明清; 封坤; 谢宏明; 孙文昊; 王均勇; 谢俊; 何应道
Original assignee: China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2022-05-10
Anticipated expiration: 2040-08-11
Also published as: CN112069570A

Abstract

The invention discloses a design method, a device, equipment and a computer readable storage medium for a joint sealing gasket hole pattern, wherein the method comprises the following steps: obtaining a contour and a designable area of an elastic sealing gasket, and determining a first model corresponding to the elastic sealing gasket based on the contour and the designable area; performing gridding processing on the first model, and obtaining a plurality of designable units corresponding to the designable area according to a processing result; determining a target model of the elastic sealing gasket according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units; the target model comprises a plurality of hole regions; judging whether the target model meets a preset condition or not; obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions in a case where the target model satisfies the preset condition.

Description

Design method, device and equipment for joint sealing gasket hole pattern and computer readable storage medium

Technical Field

The embodiment of the invention relates to the technical field of tunnel engineering, in particular to a method, a device and equipment for designing a joint sealing gasket hole pattern and a computer readable storage medium.

Background

With the rapid development of the urbanization process in China, the construction demand of tunnels such as subways and river channels is extremely high, and the shield tunnel has an important position as a main tunnel form. The waterproof problem of underground engineering is always concerned by technicians, and for shield tunnels, the waterproof performance is very important due to the fact that the shield tunnels are soaked and corroded by underground water for a long time. The waterproof performance of the shield tunnel is related to the normal performance of the using function of the tunnel and the service life of the tunnel. The shield tunnel water proofing comprises segment self-waterproofing, seam waterproofing and hand hole waterproofing. The segment lining blocks are manufactured in a prefabrication factory, so that the manufacturing quality is guaranteed, the impermeability is good, and the segment lining blocks are mature; the waterproof of the joints is the weakest and the most important, so the waterproof of the shield tunnel is mainly the waterproof of the joints between the pipe piece blocks and between the rings. Due to the differences of tunnel engineering geological conditions and tunnel structures and different waterproof design conditions, a large number of simulation tests are often required to select appropriate seam waterproof materials and section types. At present, most projects adopt ethylene propylene diene monomer porous rubber sealing gaskets made of single materials (good chemical stability, aging resistance and excellent water resistance), and also adopt composite sealing gaskets composed of ethylene propylene diene monomer porous rubber and water-swelling rubber. The sealing principle is that under certain pressure, the sealing rubber strip generates huge stress on two contact surfaces through the internal stress generated by the deformation of the inner hole of the sealing rubber strip so as to seal water.

The ethylene propylene diene monomer porous rubber sealing gasket is in a structural form with holes in a certain-shaped section, the design of the section hole pattern of the conventional elastic sealing gasket for the segment joint of the shield tunnel in China at present is mostly based on engineering experience and a class-specific method, for example, circular holes are mostly adopted in domestic subway tunnels, triangular holes are mostly adopted in large river crossing tunnels, water drop holes are mostly adopted in small shield tunnels, and the empirical design method based on the three hole patterns is too simple and cannot cope with large tunnels with increasingly higher waterproof requirements.

When the waterproof capability and the waterproof requirement of the elastic sealing gasket partially deviate by the empirical design and the class comparison method, the process of selecting the section hole pattern by the elastic sealing gasket consumes a large amount of manpower and material resources, and the design cost is increased; especially, when the waterproof capability of the elastic sealing gasket is designed to be excessively large for the waterproof requirement, the material cost of the elastic sealing gasket is inevitably increased, the compression counter force of the elastic sealing gasket is also large, the assembly of the segments is not facilitated, and the construction efficiency is reduced. No effective solution to this problem is currently available.

Disclosure of Invention

It is therefore an objective of the claimed invention to provide a method, apparatus, device and computer readable storage medium for designing a joint gasket pass, which at least partially solves the above technical problems.

In order to achieve the above object, an embodiment of the present invention provides a method for designing a joint gasket groove type, including:

obtaining a contour and a designable area of an elastic sealing gasket, and determining a first model corresponding to the elastic sealing gasket based on the contour and the designable area;

carrying out gridding processing on the first model, and obtaining a plurality of designable units corresponding to the designable area according to a processing result;

determining a target model of the elastic sealing gasket according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units; the target model comprises a plurality of hole regions;

judging whether the target model meets a preset condition or not; obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions in a case where the target model satisfies the preset condition.

In the above solution, said determining a target model of said elastic sealing gasket based on said characteristic parameters of said elastic sealing gasket and said plurality of designable units comprises:

determining the characteristic attribute of each designable unit in the plurality of designable units according to the characteristic parameter of the elastic sealing gasket and a preset algorithm; the characteristic attributes comprise entity sub-regions, boundaries and hole sub-regions;

determining a target model of the elastomeric gasket based on the characteristic properties of each designable unit; the target model comprises a solid area formed by the solid sub-area and a plurality of hole areas formed by the boundary and the hole sub-area;

and determining a target model of the elastic sealing gasket according to the solid area and the plurality of hole areas.

In the above scheme, the characteristic parameters at least include a material parameter and a constraint parameter;

the determining the characteristic attribute of each designable unit in the plurality of designable units according to the characteristic parameter of the elastic sealing gasket and a preset algorithm comprises the following steps:

the material parameters of the elastic sealing gasket are used as design variables, and the characteristic attribute of each designable unit in the plurality of designable units is determined according to a level set algorithm under the condition of the constraint parameters.

In the foregoing solution, the gridding the first model to obtain a plurality of designable units corresponding to the designable region according to a processing result includes:

carrying out gridding treatment on the first model, and obtaining a second model of the elastic sealing gasket according to a treatment result; the second model comprises a plurality of mesh regions;

and taking the plurality of grid areas in the second model as a plurality of designable units corresponding to the designable areas.

In the foregoing solution, the obtaining, based on the plurality of hole regions, a hole pattern designed in the elastic sealing gasket when the target model satisfies the preset condition includes:

taking each of the plurality of hole regions as a hole pattern designed in the elastic sealing gasket when the target model indicates that the elastic sealing gasket meets at least one of a constraint condition for bearing load, a constraint condition for performance index, a constraint condition for waterproof requirement, and a constraint condition for volume fraction; the volume fraction represents a ratio between a specific physical parameter of the first model and a specific physical parameter of the target model.

In the foregoing solution, if the target model does not satisfy the preset condition, the method further includes:

determining a target model of the elastic sealing gasket again according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units; the target model comprises a plurality of hole regions;

In the above aspect, the method further includes:

the hole pattern designed in the elastic sealing gasket is corrected according to the requirements of process manufacturing.

The embodiment of the invention also provides a design device of a joint sealing gasket hole pattern, which comprises the following components: an obtaining unit, a determining unit and a judging unit, wherein:

the obtaining unit is used for obtaining the outline and the designable area of the elastic sealing gasket, and determining a first model corresponding to the elastic sealing gasket based on the outline and the designable area; carrying out gridding processing on the first model, and obtaining a plurality of designable units corresponding to the designable area according to a processing result;

the determining unit is used for determining a target model of the elastic sealing gasket according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units obtained by the obtaining unit; the target model comprises a plurality of hole regions;

the judging unit is used for judging whether the target model meets a preset condition according to the target model determined by the determining unit; obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions in a case where the target model satisfies the preset condition.

In the above scheme, the determining unit is further configured to determine a characteristic attribute of each designable unit in the plurality of designable units according to a preset algorithm and according to the characteristic parameter of the elastic sealing gasket; the characteristic attributes comprise entity sub-regions, boundaries and hole sub-regions; determining a target model of the elastomeric gasket based on the characteristic properties of each designable unit; the target model comprises a solid area formed by the solid sub-area and a plurality of hole areas formed by the boundary and the hole sub-area; and determining a target model of the elastic sealing gasket according to the solid area and the plurality of hole areas.

the determining unit is further used for taking the material parameter of the elastic sealing gasket as a design variable, and determining the characteristic attribute of each designable unit in the plurality of designable units according to a level set algorithm under the condition of the constraint parameter.

In the above scheme, the obtaining unit is further configured to perform meshing processing on the first model, and obtain a second model of the elastic gasket according to a processing result; the second model comprises a plurality of mesh regions; and taking the plurality of grid areas in the second model as a plurality of designable units corresponding to the designable areas.

In the foregoing solution, the determining unit is further configured to, when the target model indicates that the elastic sealing gasket satisfies at least one of a constraint condition of load bearing, a constraint condition of performance index, a constraint condition of waterproof requirement, and a constraint condition of volume fraction, use each of the plurality of hole regions as a hole pattern designed in the elastic sealing gasket; the volume fraction represents a ratio between a specific physical parameter of the first model and a specific physical parameter of the target model.

In the above solution, the determining unit is further configured to determine the target model of the elastic sealing gasket again according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units; the target model comprises a plurality of hole regions;

the judging unit is further used for judging whether the target model meets a preset condition; obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions in a case where the target model satisfies the preset condition.

In the above solution, the apparatus further comprises: and the correcting unit is used for correcting the hole pattern designed in the elastic sealing gasket according to the requirements of process manufacturing.

The embodiment of the invention also provides design equipment for the joint sealing gasket hole pattern of the joint sealing gasket, which comprises the following components: a processor and a memory for storing a computer program operable on the processor, wherein the processor is adapted to perform the steps of the method described above when executing the computer program.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which, when being executed by at least one processor, implements the steps of the method described above.

The embodiment of the invention provides a design method, a device, equipment and a computer readable storage medium for a hole type of a joint sealing gasket, wherein the method comprises the following steps: obtaining a contour and a designable area of an elastic sealing gasket, and determining a first model corresponding to the elastic sealing gasket based on the contour and the designable area; carrying out gridding processing on the first model, and obtaining a plurality of designable units corresponding to the designable area according to a processing result; determining a target model of the elastic sealing gasket according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units; the target model comprises a plurality of hole regions; judging whether the target model meets a preset condition or not; obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions in a case where the target model satisfies the preset condition. In the embodiment of the invention, a plurality of designable units corresponding to designable areas are obtained by gridding a first model corresponding to an elastic sealing gasket; determining a target model of the elastic sealing gasket through the characteristic parameters of the elastic sealing gasket and the plurality of designable units; under the condition that the target model meets the preset condition, acquiring a hole pattern designed in the elastic sealing gasket based on the plurality of hole areas, namely optimizing the model subjected to gridding treatment, determining the target model of the elastic sealing gasket, and further acquiring the designed hole pattern meeting the requirement; compared with the existing design of an empirical method and a similar method, the design method can avoid the dependence on engineering experience, greatly reduce the research cost, accelerate the design speed, and meet the requirements of convenient and fast construction and the like while ensuring the waterproof safety of the structure.

Drawings

FIG. 1 is a schematic flow chart of a method for designing a joint gasket pass according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an elastic gasket according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an elastic gasket target model according to an embodiment of the present invention;

FIG. 4 is a schematic flow chart of a method for designing a joint gasket pass according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a seam gasket pass design apparatus according to an embodiment of the present invention;

fig. 6 is a schematic hardware structure diagram of a joint gasket hole type design apparatus of a joint gasket according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following describes specific technical solutions of the present invention in further detail with reference to the accompanying drawings in the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic flow chart of a method for designing a joint gasket pass according to an embodiment of the present invention, as shown in fig. 1, the method includes:

s101: a contour and a designable area of an elastic gasket are obtained, and a first model corresponding to the elastic gasket is determined based on the contour and the designable area.

S102: and carrying out gridding processing on the first model, and obtaining a plurality of designable units corresponding to the designable area according to a processing result.

S103: determining a target model of the elastic sealing gasket according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units; the object model includes a plurality of hole regions.

S104: judging whether the target model meets a preset condition or not; obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions in a case where the target model satisfies the preset condition.

It should be noted that the elastic sealing gasket may be any elastic sealing gasket, which is not limited herein, as an example, the elastic sealing gasket may be a tunnel segment joint elastic sealing gasket, specifically, the elastic sealing gasket may also be a shield tunnel segment joint elastic sealing gasket, the outline of the elastic sealing gasket may be the outline of any one of the elastic sealing gaskets, the designable region may be a region enclosed in the outline of any one of the elastic sealing gaskets, and the region may not have a region with a hole or a region with a hole. In practical application, the main stream elastic sealing gasket can be selected, and the outline of the elastic sealing gasket is obtained by directly drawing the main stream elastic sealing gasket by drawing software, so that a designable area enclosed in the outline of the elastic sealing gasket is obtained.

Determining a first model corresponding to the elastic sealing gasket based on the contour and the designable region may be establishing a first model corresponding to the elastic sealing gasket based on the contour and the designable region in accordance with modeling software; the modeling software may be general modeling software, which is not limited herein; the first model may be a planar model.

For convenience of understanding, a schematic structural diagram of an elastic sealing gasket is illustrated, fig. 2 is a schematic structural diagram of an elastic sealing gasket provided by an embodiment of the invention, and as shown in fig. 2, 21 may be a profile of the elastic sealing gasket; 22 may be a designable region of the resilient seal.

The gridding processing is performed on the first model, and the obtaining of the plurality of designable units corresponding to the designable area according to the processing result may be performed by performing gridding division on the first model through finite element analysis software, so as to obtain the plurality of designable units corresponding to the designable area.

As an example, the first model is subjected to gridding, and the plurality of designable units corresponding to the designable region are obtained according to the processing result, so that the second model of the elastic gasket is obtained according to the processing result; the second model comprises a plurality of mesh regions; and taking the plurality of grid areas in the second model as a plurality of designable units corresponding to the designable areas. In practical application, the first model can be subjected to meshing through finite element analysis software, and a second model of the elastic sealing gasket after meshing is obtained; as an example, the second model may be a mesh model comprising a plurality of mesh regions; each grid region may represent a designable unit, and a plurality of grid regions in the grid model may represent a plurality of designable units corresponding to the designable region.

Determining the target model of the elastic gasket according to the characteristic parameters of the elastic gasket and the plurality of designable units may be determining the characteristic attribute of each designable unit in the plurality of designable units according to a preset algorithm according to the characteristic parameters of the elastic gasket; the characteristic attributes comprise entity sub-regions, boundaries and hole sub-regions; determining a target model of the elastomeric gasket based on the characteristic properties of each designable unit.

For convenience of understanding, a schematic structural diagram of an elastic gasket target model is illustrated here, fig. 3 is a schematic structural diagram of an elastic gasket target model provided by an embodiment of the present invention, as shown in fig. 3, three possible target models (a) - (c) are illustrated in fig. 3, and a plurality of hole regions 31 in (a) can be regarded as a water-drop-shaped hole pattern; the plurality of void regions 32 in (b) can be considered as triangular hole patterns; the plurality of void regions 33 in (c) can be considered as circular hole patterns.

Judging whether the target model meets a preset condition or not; the preset condition may be set according to an actual situation, and is not limited herein. As an example, the preset condition may include at least one of: the constraint condition of bearing load, the constraint condition of performance index, the constraint condition of waterproof requirement and the constraint condition of volume fraction; the volume fraction represents a ratio between a specific physical parameter of the first model and a specific physical parameter of the target model;

in a case where the target model satisfies the preset condition, obtaining the hole pattern designed in the elastic sealing gasket based on the plurality of hole regions may be to take each of the plurality of hole regions as the hole pattern designed in the elastic sealing gasket in a case where the target model satisfies the preset condition.

In the embodiment of the invention, a plurality of designable units corresponding to designable areas are obtained by gridding a first model corresponding to an elastic sealing gasket; determining a target model of the elastic sealing gasket through the characteristic parameters of the elastic sealing gasket and the plurality of designable units; under the condition that the target model meets the preset condition, acquiring a hole pattern designed in the elastic sealing gasket based on the plurality of hole areas, namely optimizing the model subjected to gridding treatment, determining the target model of the elastic sealing gasket, and further acquiring a design hole pattern meeting the requirement; compared with the existing design of an empirical method and a similar method, the design method can avoid the dependence on engineering experience, greatly reduce the research cost, accelerate the design speed, and meet the requirements of convenient and fast construction and the like while ensuring the waterproof safety of the structure.

In an alternative embodiment of the present invention, the determining a target model of the elastic sealing gasket according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units includes: determining the characteristic attribute of each designable unit in the plurality of designable units according to the characteristic parameter of the elastic sealing gasket and a preset algorithm; the characteristic attributes comprise entity sub-regions, boundaries and hole sub-regions; determining a target model of the elastomeric gasket based on the characteristic properties of each designable unit; the target model comprises a solid area formed by the solid sub-area and a plurality of hole areas formed by the boundary and the hole sub-area; and determining a target model of the elastic sealing gasket according to the solid area and the plurality of hole areas.

In this embodiment, the characteristic parameter of the elastic sealing gasket may be any parameter that characterizes the elastic sealing gasket, and is not limited herein. As an example, the characteristic parameters of the elastic sealing gasket comprise at least a material parameter of the elastic sealing gasket and a constraint parameter of the elastic sealing gasket; the material parameter may be a material characteristic of the resilient seal itself, such as a rubber seal; the constraint parameter may be a constraint condition optimized for the elastic sealing gasket, such as a material dosage constraint, a stress constraint, a geometric constraint, and the like.

The preset algorithm may be any software algorithm, and is not limited herein. As an example, the preset algorithm may be an algorithm in the finite element software, and specifically, the preset algorithm may be a more suitable level set function selected from the finite element software, where the level set function is a numerical technique for interface tracking and shape modeling, and is also a scalar function, where the scalar function refers to a function returning a certain type scalar value, and the function is self-defined according to actual requirements, and includes a load condition, a constraint condition (such as stress, displacement, frequency, weight, and the like), and a performance index (such as rigidity, weight, and the like).

Determining the characteristic attribute of each designable unit in the plurality of designable units according to the characteristic parameter of the elastic sealing gasket and a preset algorithm can be determining the characteristic attribute of each designable unit in the plurality of designable units according to the preset algorithm by setting the characteristic parameter of the elastic sealing gasket; wherein the characteristic parameters may include at least a material parameter and a constraint parameter.

The characteristic attributes comprise entity sub-regions, boundaries and hole sub-regions; wherein the solid sub-region is a solid unit part of each designable unit, and the part can be reserved; the boundary is a part of each designable unit which is judged as unit convergence according to a preset algorithm, and the shape of the boundary can be determined; the hole sub-region is a part of each designable unit which is judged to have low unit efficiency according to a preset algorithm, and holes can be formed or the shape and the size of the arranged holes can be optimized and changed.

Determining the target model of the elastic gasket based on the characteristic properties of each designable cell may be determining the target model of the elastic gasket based on physical sub-regions, boundaries, and hole sub-regions of each designable cell; as an example, the solid sub-regions connected to each designable unit can be combined to form a solid region, and the boundary connected to each designable unit and the hole sub-regions can be combined to form a plurality of hole regions.

Determining the target model of the elastic sealing gasket according to the solid area and the plurality of hole areas may be determining a model formed by the solid area and the plurality of hole areas as the target model of the elastic sealing gasket.

In an alternative embodiment of the invention, the characteristic parameters comprise at least a material parameter and a constraint parameter;

the determining the characteristic attribute of each designable unit in the plurality of designable units according to the characteristic parameter of the elastic sealing gasket and a preset algorithm comprises the following steps: the material parameters of the elastic sealing gasket are used as design variables, and the characteristic attribute of each designable unit in the plurality of designable units is determined according to a level set algorithm under the condition of the constraint parameters.

In this embodiment, the level set algorithm may be any level set algorithm in finite element software, and as an example, the level set algorithm may be a level set function.

The material parameters of the elastic sealing gasket are used as design variables, the characteristic attribute of each designable unit in the plurality of designable units is determined according to a level set algorithm under the condition of the constraint parameters, different material parameters are set for the model after gridding processing is carried out on the first model, the size relation between each designable unit in the plurality of designable units and a preset numerical value is determined according to the level set algorithm under the condition of the constraint parameters, and then the characteristic attribute of each designable unit is determined according to the size relation. As an example, the level set algorithm may be a level set function; the predetermined value may be zero; the magnitude relationship may be a magnitude relationship of a value of the level set function and zero; determining the characteristic attribute of each designable unit according to the size relationship may be determining a characteristic attribute of each designable unit if the value of the level set function is greater than zero, or determining a characteristic attribute of each designable unit if the value of the level set function is equal to zero, or determining a characteristic attribute of each designable unit if the value of the level set function is less than zero.

For ease of understanding, the level set function is denoted as Φ (x), where x represents a design variable, and structural topology optimization can be achieved by changing the level set function to change the inner and outer boundaries of the designable cell. In practical applications, the value of Φ (x) and the size of zero can be determined, and generally, when Φ (x) >0, it is determined as an entity, which means that entity units around holes arranged in a designable unit are reserved; when Φ (x) is 0, a boundary is determined, which indicates that the function has converged and the boundary shape of the holes in which the designable cells have been arranged is determined; when phi (x) <0, the designable unit is judged to be low in efficiency, and the designable unit can be deleted to form holes, which means that the shapes and the sizes of the holes arranged in the designable unit are optimized and changed; and continuously optimizing the shape and the size of the holes arranged in the designable design through the function cycle until the boundary of the holes is finally determined, and obtaining an optimized result. In practical application scenarios, different holes can correspond to different elastic moduli and different compression deformation forms, so that the different shapes of the holes directly affect the compression reaction force and the contact stress of the sealing gasket. In the embodiment, the plurality of designable units are optimized through the level set function, repeated iteration is performed, the unit with the lower iteration speed in the plurality of designable units is called an invalid and inefficient designable unit, and holes can be deleted, namely generated, in the optimization, so that the optimal hole pattern design is obtained.

In an optional embodiment of the present invention, the gridding the first model and obtaining a plurality of designable units corresponding to the designable area according to a processing result include: carrying out gridding treatment on the first model, and obtaining a second model of the elastic sealing gasket according to a treatment result; the second model comprises a plurality of mesh regions; and taking the plurality of grid areas in the second model as a plurality of designable units corresponding to the designable areas.

In this embodiment, the first model may be subjected to meshing by using finite element analysis software, so as to obtain a second model of the elastic sealing gasket after meshing; as an example, the second model may be a mesh model comprising a plurality of mesh regions; each grid region may represent a designable unit, and a plurality of grid regions in the grid model may represent a plurality of designable units corresponding to the designable region.

In an optional embodiment of the present invention, the obtaining, based on the plurality of hole regions, a hole pattern designed in the elastic sealing gasket in a case where the target model satisfies the preset condition includes: taking each of the plurality of hole regions as a hole pattern designed in the elastic sealing gasket when the target model indicates that the elastic sealing gasket meets at least one of a constraint condition for bearing load, a constraint condition for performance index, a constraint condition for waterproof requirement, and a constraint condition for volume fraction; the volume fraction represents a ratio between a specific physical parameter of the first model and a specific physical parameter of the target model; wherein the specific physical parameter may be at least an area of a two-dimensional space and a volume of a three-dimensional space.

In this embodiment, the target model is a model obtained by gridding a first model corresponding to the elastic sealing gasket, and the plurality of designable units are subjected to topology optimization by setting characteristic parameters of the elastic sealing gasket.

The constraint condition of the bearing load may represent a constraint condition of a stress, a displacement, a frequency and the like, for example, the constraint condition of the bearing load may be that the stress is not greater than 60kN/m, and if the stress of the bearing load in the target model is not greater than 60kN/m, the preset condition is satisfied.

The performance index may represent an index of stiffness, weight, etc., for example, the constraint condition of the performance index may be a weight of not more than 10 kg; the waterproof requirement may be set according to an actual requirement, for example, the constraint condition of the waterproof requirement may be that the contact stress is not lower than 1.2MPa, and if the contact stress in the target model is greater than or equal to 1.2MPa, the preset condition is satisfied.

The constraints of the volume fraction may be constraints of a ratio between an area of the first model and an area of the target model in a two-dimensional space and constraints of a ratio between a volume of the first model and a volume of the target model in a three-dimensional space; in general, the area of the first model in two-dimensional space and the volume of the first model in three-dimensional space may be treated as one; the area or volume of the target model may be reduced relative to the area or volume of the first model before optimization due to the fact that the area or volume of the target model may increase the number of holes and change the size of the holes after optimization. For convenience of understanding, the constraint condition of the volume fraction is a constraint condition of a ratio between the volume of the first model and the volume of the target model in a three-dimensional space; wherein, the volume of the first model can also be called a volume fraction before optimization of the mesh model, and the volume of the target model can also be called a volume fraction after optimization of the mesh model; the constraint condition of the volume fraction is that the volume fraction before the optimization of the grid model and the volume fraction after the optimization of the grid model cannot exceed the upper limit volume fraction, for example, the upper limit volume fraction is set to be 1.11, the volume fraction before the optimization is 99%, the volume fraction after the optimization is 95%, the ratio of the volume fraction before the optimization to the volume fraction before the optimization is 1.04 and not exceeds 1.11, and the constraint condition meets the conditions.

For convenience of understanding, fig. 3 is a schematic structural diagram of an elastic gasket target model provided by an embodiment of the present invention, and in a case where the elastic gasket target model in (a) in fig. 3 indicates that the elastic gasket satisfies at least one of a constraint condition of load bearing, a constraint condition of performance index, a constraint condition of waterproof requirement, and a constraint condition of volume fraction, each of the plurality of water droplet shaped hole patterns in (a) in fig. 3 may be used as a hole pattern designed in the elastic gasket; in the case where the elastic packing target model in (b) in fig. 3 indicates that the elastic packing satisfies at least one of the constraint condition of bearing load, the constraint condition of performance index, the constraint condition of waterproof requirement, and the constraint condition of volume fraction, each of the plurality of triangular hole patterns in (b) in fig. 3 may be regarded as a hole pattern designed in the elastic packing; in the case where the elastic packing target model in (c) in fig. 3 indicates that the elastic packing satisfies at least one of the constraint condition of load bearing, the constraint condition of performance index, the constraint condition of waterproof requirement, and the constraint condition of volume fraction, each of the plurality of circular hole patterns in (c) in fig. 3 may be the hole pattern designed in the elastic packing.

In an optional embodiment of the present invention, if the target model does not satisfy the preset condition, the method further includes:

In this embodiment, if the target model does not satisfy the preset condition, the elastic gasket needs to be determined again according to the characteristic parameters of the elastic gasket and the plurality of designable units; the target model comprises a plurality of hole regions; judging whether the target model meets a preset condition or not; and until the target model meets the preset condition, the process is a cyclic process, and can be repeatedly optimized and continuously approached to design an optimal hole pattern.

In an optional embodiment of the invention, the method further comprises:

It should be noted that the requirements of the process manufacturing at least can include structural layout requirements and minimum size requirements of the designed hole pattern in the elastic sealing gasket; wherein the structural layout requirement may be a symmetry requirement of a pass; the minimum dimension requirement may be the minimum dimension of the hole pattern during the manufacturing process, mainly because the dimension is too small to facilitate the manufacturing process.

The present embodiment mainly aims at that the internal structural layout and the size of the hole pattern designed in the elastic sealing gasket may have disadvantages to the process manufacturing, for example, the layout of the hole pattern is disordered, and the mass production cannot be performed during the process manufacturing; if the size of the hole is too small, the hole cannot be machined in the process manufacturing process; therefore, the symmetry and the minimum dimension setting of the hole pattern designed in the elastic sealing gasket need to be corrected, and after the correction, the hole pattern designed in the elastic sealing gasket needs to be optimized again to obtain the final hole pattern designed in the elastic sealing gasket, namely the hole pattern meeting the requirements of all aspects.

For convenience of understanding, a schematic flow chart of a hole pattern design method in practical application is illustrated, and fig. 4 is a schematic flow chart of a design method of a joint gasket hole pattern provided by an embodiment of the invention, as shown in fig. 4, the method includes:

s401: the contour and the designable area of the elastic sealing gasket are obtained.

It should be noted that the elastic sealing gasket may be a tunnel segment joint elastic sealing gasket, for example, a shield tunnel segment joint elastic sealing gasket. The elastic sealing gasket can be generally selected as a mainstream elastic sealing gasket, and the section outline of the elastic sealing gasket and a designable area enclosed in the section outline are obtained according to the mainstream elastic sealing gasket; wherein, holes may not be arranged in the designable area, and holes may also be arranged in the designable area.

S402: and determining a plane model corresponding to the elastic sealing gasket based on the outline and the designable area.

It should be noted that, determining the planar model corresponding to the elastic gasket based on the contour and the designable region may be establishing the planar model corresponding to the elastic gasket based on the contour and the designable region according to modeling software; the modeling software may be general modeling software, and is not limited herein.

S403: carrying out gridding treatment on the plane model to obtain a grid model corresponding to the elastic sealing gasket; the grid model comprises a plurality of designable units corresponding to the designable area.

It should be noted that, the step of performing meshing processing on the planar model to obtain the mesh model corresponding to the elastic sealing gasket may be a step of performing mesh division on the planar model through finite element analysis software to obtain the mesh model corresponding to the elastic sealing gasket; the mesh model includes a plurality of mesh regions; each grid region may represent a designable unit, and a plurality of grid regions in the grid model may represent a plurality of designable units corresponding to the designable region.

In this embodiment, if the designable area in the planar model has not been previously provided with any holes, the designable area may be completely subjected to gridding processing to obtain a plurality of grid areas; each grid area can represent a designable unit, and a plurality of grid areas can represent a plurality of designable units corresponding to the designable areas; if a few holes are arranged in the designable area in the plane model, all but the holes in the designable area can be subjected to gridding treatment to obtain a plurality of grid areas; each grid region may represent a designable unit, and a plurality of grid regions may represent a plurality of designable units corresponding to the designable region.

S404: and setting characteristic parameters of the elastic sealing gasket, and performing structural topology optimization on the plurality of designable units according to a level set function to determine a target model of the elastic sealing gasket.

It should be noted that the characteristic parameters for setting the elastic sealing gasket are mainly two types, one is to set the material parameters of the elastic sealing gasket itself, and the other is to set the constraint parameters for optimizing the elastic sealing gasket, specifically, the constraint conditions are constraint conditions, such as material consumption constraint, stress constraint, geometric constraint, and the like.

In this embodiment, after setting the characteristic parameters of the elastic sealing gasket for the mesh model, performing structural topology optimization on the plurality of designable units according to a level set function to determine a target model of the elastic sealing gasket; and the target model is an optimized grid model.

For ease of understanding, the level set function is denoted as Φ (x), where x represents a design variable, and structural topology optimization can be achieved by changing the level set function to change the inner and outer boundaries of the designable cell. In practical applications, the value of Φ (x) and the size of zero can be determined, and generally, when Φ (x) >0, it is determined as an entity, which indicates that entity units around holes arranged in a designable unit are reserved; when phi (x) is 0, determining a boundary, wherein the function is converged, and determining the boundary shape of the holes arranged in the designable unit; when phi (x) <0, judging that the designable unit has low efficiency, forming holes, and indicating that the shapes and the sizes of the holes arranged in the designable unit are optimized and changed; and continuously optimizing the shapes and the sizes of the holes arranged in the designable units through the function cycle until the boundaries of the holes are finally determined, and obtaining the optimized result. If the designable area in the plane model is not provided with any holes previously, the process can have diversity on the shapes and the number of the holes after specific optimization in the design domain; if the designable area in the planar model has a few holes previously placed, the process can be optimized based on the existing holes to obtain more accurate hole shape and size.

For convenience of understanding, a specific optimization process is exemplified herein, in a mathematical model of topology optimization, with material characteristics of each point in a design domain as design variables, an optimization algorithm is adopted to seek an optimal distribution of materials in the design domain, so as to meet the goals and constraints of structural design, determine an optimal structural topological form of materials in the presence or absence of the design domain, and simultaneously give rough structural shape and size characteristics.

S405: and judging whether the target model meets a preset condition or not.

In this embodiment, if the target model meets the preset condition, step S406 is executed; and if the target model does not meet the preset condition, returning to execute the step S403 until the target model meets the preset condition, wherein the process is a cyclic process, can be repeatedly optimized and continuously approaches.

It should be noted that the preset condition may include at least one of the following: the constraint condition of bearing load, the constraint condition of performance index, the constraint condition of waterproof requirement and the constraint condition of volume fraction; the volume fraction represents a ratio between a specific physical parameter of the first model and a specific physical parameter of the target model; the specific physical parameter may be at least an area of the two-dimensional space and a volume of the two-dimensional space.

The constraint condition of the load may represent a constraint condition of a stress, a displacement, a frequency, and the like, for example, the constraint condition of the load may be that the stress is not greater than 60kN/m, and if the stress of the load in the target model is not greater than 60kN/m, the preset condition is satisfied.

The constraints of the volume fraction may be constraints of a ratio between an area of the first model and an area of the target model in a two-dimensional space and constraints of a ratio between a volume of the first model and a volume of the target model in a three-dimensional space; in general, the area of the first model in two-dimensional space and the volume of the first model in three-dimensional space may be treated as one; the area or volume of the target model may be reduced relative to the area or volume of the first model before optimization due to the fact that the area or volume of the target model may increase the number of holes and change the size of the holes after optimization. For convenience of understanding, the constraint condition of the volume fraction is a constraint condition of a ratio between the volume of the first model and the volume of the target model in a three-dimensional space; wherein, the volume of the first model can also be called a volume fraction before optimization of the mesh model, and the volume of the target model can also be called a volume fraction after optimization of the mesh model; the constraint condition of the volume fraction is that the volume fraction before optimization of the grid model and the volume fraction after optimization of the grid model cannot exceed the upper limit volume fraction, for example, the upper limit volume fraction is set to be 1.11, the volume fraction before optimization is 99%, the volume fraction after optimization is 95%, the ratio of the volume fraction before optimization to the volume fraction after optimization is 1.04 and not exceeds 1.11, and the constraint condition meets the condition.

S406: a hole pattern designed in the resilient gasket is obtained based on the plurality of hole regions.

In this embodiment, when the target model satisfies a preset condition, the hole pattern designed in the elastic sealing gasket is obtained based on the plurality of hole regions, and specifically, each of the plurality of hole regions is used as the hole pattern designed in the elastic sealing gasket.

S407: the hole pattern designed in the elastic sealing gasket is corrected according to the requirements of process manufacturing.

In practical application, the requirements of the process manufacturing at least can comprise the structural layout requirements and the minimum size requirements of the hole type designed in the elastic sealing gasket; wherein the structural layout requirement may be a symmetry requirement of a pass; the minimum dimension requirement may be the minimum dimension of the hole pattern during the manufacturing process, mainly because the dimension is too small to facilitate the manufacturing process.

In the embodiment of the invention, a plurality of designable units corresponding to designable areas are obtained by gridding a first model corresponding to an elastic sealing gasket; determining a target model of the elastic sealing gasket through the characteristic parameters of the elastic sealing gasket and the plurality of designable units; under the condition that the target model meets the preset condition, acquiring a hole pattern designed in the elastic sealing gasket based on the plurality of hole areas, namely optimizing the model subjected to gridding treatment, determining the target model of the elastic sealing gasket, and further acquiring a design hole pattern meeting the requirement; compared with the existing empirical design and analog design, the method can greatly reduce the consumption of manpower and material resources and the cost of design, material and construction.

Based on the same inventive concept, it shows a schematic structural diagram of a design device of a joint sealing gasket pass provided by an embodiment of the present invention, fig. 5 is a schematic structural diagram of a design device of a joint sealing gasket pass provided by an embodiment of the present invention, as shown in fig. 5, the device 50 includes: an obtaining unit 501, a determining unit 502 and a judging unit 503, wherein:

the obtaining unit 501 is configured to obtain a contour and a designable region of the elastic gasket, and determine a first model corresponding to the elastic gasket based on the contour and the designable region; carrying out gridding processing on the first model, and obtaining a plurality of designable units corresponding to the designable area according to a processing result;

the determining unit 502 is configured to determine a target model of the elastic sealing gasket according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units obtained by the obtaining unit 501; the target model comprises a plurality of hole regions;

the judging unit 503 is configured to judge whether the target model meets a preset condition according to the target model determined by the determining unit 502; obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions in a case where the target model satisfies the preset condition.

In some embodiments, the determining unit 502 is further configured to determine a characteristic attribute of each designable unit of the plurality of designable units according to a preset algorithm according to the characteristic parameter of the elastic sealing gasket; the characteristic attributes comprise entity sub-regions, boundaries and hole sub-regions; determining a target model of the elastomeric gasket based on the characteristic properties of each designable unit; the target model comprises a solid area formed by the solid sub-area and a plurality of hole areas formed by the boundary and the hole sub-area; and determining a target model of the elastic sealing gasket according to the solid area and the plurality of hole areas.

In some embodiments, the characteristic parameters include at least a material parameter and a constraint parameter;

the determining unit 502 is further configured to determine, by using the material parameter of the elastic sealing gasket as a design variable, a characteristic attribute of each designable unit of the plurality of designable units according to a level set algorithm under the condition of the constraint parameter.

In some embodiments, the obtaining unit 501 is further configured to perform a gridding process on the first model, and obtain a second model of the elastic sealing gasket according to a processing result; the second model comprises a plurality of mesh regions; and taking the plurality of grid areas in the second model as a plurality of designable units corresponding to the designable areas.

In some embodiments, the determining unit 503 is further configured to, in a case that the target model indicates that the elastic sealing gasket satisfies at least one of a constraint condition of load bearing, a constraint condition of performance index, a constraint condition of waterproof requirement, and a constraint condition of volume fraction, regard each of the plurality of hole regions as a hole type designed in the elastic sealing gasket; the volume fraction represents a ratio between a specific physical parameter of the first model and a specific physical parameter of the target model.

In some embodiments, the determining unit 502 is further configured to determine a target model of the elastic sealing gasket again according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units; the target model comprises a plurality of hole regions;

the judging unit 503 is further configured to judge whether the target model meets a preset condition; obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions in a case where the target model satisfies the preset condition.

In some embodiments, the apparatus 500 further comprises: a correcting unit 504 for correcting the hole pattern designed in the elastic sealing gasket according to the requirements of the process manufacturing.

The embodiment of the invention provides a calibration device of a coherent optical module, which is characterized in that firstly, tunnel linings to be detected are subjected to first detection processing under a first frequency and a second frequency through a geological radar, images of the tunnel linings to be detected under different frequencies are obtained, then, the mileage range of the tunnel linings to be detected with defects is determined, finally, different detection instruments are adopted for second detection processing, so that the accurate positions and types of the defects in the mileage range with the defects are determined, and finally, the determined defects are reasonably processed. Some terms of the aforementioned calibration apparatus for the coherent optical module are already explained in the design method of the hole pattern and are not repeated here.

The embodiment of the invention also provides design equipment for the joint sealing gasket hole pattern of the joint sealing gasket, which comprises the following steps: a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is configured to execute the steps of the above-described method embodiments stored in the memory when running the computer program.

The present invention provides a computer-readable medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above-described method embodiments, and the aforementioned storage medium comprises: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Fig. 6 is a schematic hardware configuration diagram of a joint gasket joint seal groove type designing apparatus 60 according to an embodiment of the present invention, which includes: at least one processor 601 and memory 602; optionally, the joint gasket hole type design apparatus 60 may further comprise at least one communication interface 603; the various components in the joint gasket joint seal type design apparatus 60 may be coupled together by a bus system 604, it being understood that the bus system 604 is used to enable connection communication between these components. The bus system 604 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 604 in fig. 6.

It will be appreciated that the memory 602 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 602 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

The memory 602 in the present embodiment is used to store various types of data to support the operation of the joint gasket type design apparatus 60. Examples of such data include: any computer program for operating on the joint seal pass design apparatus 60, such as determining a target model for the elastomeric seal based on the characteristic parameters of the elastomeric seal and the plurality of designable units, etc., a program implementing the method of an embodiment of the present invention may be contained in the memory 602.

The method disclosed by the above-mentioned embodiment of the present invention can be applied to the processor 601, or implemented by the processor 601. The processor 601 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 601. The Processor 601 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 601 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium that is located in the memory 602 and the processor 601 reads the information from the memory and performs the steps of the method described above in conjunction with its hardware.

In an exemplary embodiment, the seam gasket pass design Device 60 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the above-described methods.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A method of designing a joint gasket pass, the method comprising:

determining a target model of the elastic sealing gasket according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units; the target model comprises a plurality of hole regions; the characteristic parameters of the elastic sealing gasket at least comprise material parameters of the elastic sealing gasket and constraint parameters of the elastic sealing gasket;

judging whether the target model meets a preset condition or not; obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions under the condition that the target model satisfies the preset condition;

wherein obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions under a condition that the target model satisfies the preset condition includes:

2. The method of claim 1, wherein said determining a target model of the elastomeric seal based on the characteristic parameters of the elastomeric seal and the plurality of designable units comprises:

3. The method according to claim 2, wherein said determining a characteristic property of each designable cell of said plurality of designable cells according to a predetermined algorithm based on a characteristic parameter of said elastomeric seal comprises:

4. The method according to claim 1, wherein the gridding the first model to obtain a plurality of designable units corresponding to the designable region according to the processing result comprises:

5. The method according to claim 1, wherein if the target model does not satisfy the predetermined condition, the method further comprises:

judging whether the target model meets a preset condition or not; obtaining a hole pattern designed in the elastic gasket based on the plurality of hole regions, in a case where the target model satisfies the preset condition.

6. The method according to any one of claims 1 to 5, further comprising:

7. An apparatus for designing a joint gasket pass, said apparatus comprising: an obtaining unit, a determining unit and a judging unit, wherein:

the determining unit is used for determining a target model of the elastic sealing gasket according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units obtained by the obtaining unit; the target model comprises a plurality of hole regions; the characteristic parameters of the elastic sealing gasket at least comprise material parameters of the elastic sealing gasket and constraint parameters of the elastic sealing gasket;

the judging unit is used for judging whether the target model meets a preset condition according to the target model determined by the determining unit; obtaining a hole pattern designed in the elastic sealing gasket based on the plurality of hole regions under the condition that the target model satisfies the preset condition;

the judging unit is further configured to, when the target model indicates that the elastic sealing gasket satisfies at least one of a constraint condition for bearing a load, a constraint condition for a performance index, a constraint condition for a waterproof requirement, and a constraint condition for a volume fraction, use each of the plurality of hole regions as a hole pattern designed in the elastic sealing gasket; the volume fraction represents a ratio between a specific physical parameter of the first model and a specific physical parameter of the target model.

8. The apparatus according to claim 7, wherein the determining unit is further configured to determine a characteristic attribute of each designable unit of the plurality of designable units according to a preset algorithm according to the characteristic parameter of the elastic sealing gasket; the characteristic attributes comprise entity sub-areas, boundaries and hole sub-areas; determining a target model of the elastomeric gasket based on the characteristic properties of each designable unit; the target model comprises a solid area formed by the solid sub-area and a plurality of hole areas formed by the boundary and the hole sub-area; and determining a target model of the elastic sealing gasket according to the solid area and the plurality of hole areas.

9. The apparatus of claim 8, wherein the determining unit is further configured to determine the characteristic property of each designable unit of the plurality of designable units according to a level set algorithm using the material parameter of the elastic sealing gasket as a design variable, with the constraint parameter.

10. The apparatus according to claim 7, wherein the obtaining unit is further configured to perform a gridding process on the first model, and obtain a second model of the elastic sealing gasket according to a processing result; the second model comprises a plurality of mesh regions; and taking the plurality of grid areas in the second model as a plurality of designable units corresponding to the designable areas.

11. The apparatus of claim 7,

the determining unit is further used for determining a target model of the elastic sealing gasket again according to the characteristic parameters of the elastic sealing gasket and the plurality of designable units; the target model comprises a plurality of hole regions;

12. The apparatus of any one of claims 7 to 11, further comprising: and the correcting unit is used for correcting the hole pattern designed in the elastic sealing gasket according to the requirements of process manufacturing.

13. An apparatus for designing a joint gasket pass of a joint gasket, said apparatus comprising: a processor and a memory for storing a computer program operable on the processor, wherein the processor is operable to perform the steps of the method of any of claims 1 to 6 when the computer program is executed.

14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by at least one processor, carries out the steps of the method according to any one of claims 1 to 6.