CN107193054A - The modeling method and device of a kind of geophone mechanical pendulum - Google Patents
The modeling method and device of a kind of geophone mechanical pendulum Download PDFInfo
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Abstract
The invention provides a kind of modeling method of geophone mechanical pendulum and device, wherein method includes：User Defined structural parameters are received, two reeds, fixed weight and the geometrical model for swinging weight is set up respectively based on custom parameter；Based on two reeds, fixed weight and the geometrical model for swinging weight, two reeds, fixed weight and swing weight are assembled, the geometrical model of the mechanical pendulum is obtained；The material parameter of user's input is received, the geometrical model based on material parameter and mechanical pendulum generates the physical model of mechanical pendulum；Mesh generation is carried out to the physical model of mechanical pendulum, the FEM model of mechanical pendulum is obtained.By method and apparatus provided in an embodiment of the present invention, model can be set up for geophone mechanical pendulum, be easy to staff to carry out research and analysis to the performance of mechanical pendulum.
Description
Technical field
The present invention relates to surveying to shake technical field, in particular to the modeling method and device of a kind of geophone mechanical pendulum.
Background technology
At present, seismometer is widely used in a quasi-instrument of seismic signal monitoring and earthquake prediction early warning, is compositing area
The underlying instrument of property and national seismic network.Seismometer can be not only used for Earthquake signal detection, in exploration of oil and gas field, engineering
The field such as prospecting and monitoring, nervous system and mine safety, it is widely used and practical；Wherein, mechanical pendulum-type of short cycle
Seismometer is the conventional instrument for constituting the array, is also current the most widely used seismometer of platform net.
For mechanical pendulum-type seismometer of short cycle, the determinant of the sensitivity of seismometer be geophone intrinsic frequency or
Person is referred to as the original natural frequency of vibration, and the original natural frequency of vibration of geophone is determined by the structural parameters and material parameter of geophone, existing
Have in technology, the acquisition to the original natural frequency of vibration of geophone is all to carry out batch sampling observation after geophone production is completed to measure
Obtain, and the analysis calculating process of its performance and to being all by work to the influence degree of geophone performance due to size adjusting
Make what personnel were judged according to the working experience of oneself, waste time and energy, and there is error；FEM model is used for automobile mould
Type is modeled or conveyer belt modeling, and performance of the technical staff to product can be significantly facilitated by setting up the method for FEM model
Analyze and optimize in real time, but do not occur a kind of modeling method on geophone mechanical pendulum in correlation technique also.
The content of the invention
In view of this, the purpose of the embodiment of the present invention is the modeling method and device for providing a kind of geophone mechanical pendulum,
Realization is modeled to geophone.
In a first aspect, the embodiments of the invention provide a kind of modeling method of geophone mechanical pendulum, the mechanical pendulum is by two
Individual reed, fixed weight and swing weight and constitute, the free end of the mechanical pendulum by the swing weight, the fixed weight and
The top of described two reeds is constituted, and the restrained end of the mechanical pendulum is made up of the bottom of described two reeds, methods described bag
Include：
User Defined structural parameters are received, described two reeds are set up based on the custom parameter respectively, described solid
Determine the geometrical model of weight and the swing weight；
Based on the geometrical model of described two reeds, the fixed weight and the swing weight, to described two reeds,
The fixed weight and the swing weight are assembled, and obtain the geometrical model of the mechanical pendulum；
The material parameter of user's input is received, the geometrical model generation based on the material parameter and the mechanical pendulum
The physical model of the mechanical pendulum；
Mesh generation is carried out to the physical model of the mechanical pendulum, the FEM model of mechanical pendulum is obtained.
With reference in a first aspect, the present invention implement in provide first aspect the first possible embodiment, wherein：
The reception User Defined structural parameters, described two reeds, institute are set up based on the custom parameter respectively
The geometrical model of fixed weight and the swing weight is stated, including：
The first custom parameter of user's input is received, according to the first custom parameter of the user, the spring is generated
The geometrical model of the geometrical model of the bottom plate of piece and multiple first clipping volumes；
The geometrical model of geometrical model and the multiple clipping volume to the bottom plate of the reed carries out Boolean subtraction calculation, obtains
To the geometrical model of the reed.
With reference in a first aspect, method name embodiment provide first aspect second of possible embodiment, wherein：
The reception User Defined structural parameters, described two reeds, institute are set up based on the custom parameter respectively
The geometrical model of fixed weight and the swing weight is stated, in addition to：
The second custom parameter of user is received, according to the second custom parameter of the user, the first cuboid is generated
Geometrical model and multiple second clipping volumes geometrical model；
The geometrical model of geometrical model and the multiple second clipping volume to the described first non-porous cuboid carries out boolean
Subtract computing, obtain the geometrical model of the fixed weight.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the third of first aspect, wherein：
The reception User Defined structural parameters, described two reeds, institute are set up based on the custom parameter respectively
The geometrical model of fixed weight and the swing weight is stated, in addition to：
The 3rd custom parameter of user is received, according to the 3rd custom parameter of the user, the second cuboid is set up
Geometrical model and multiple 3rd clipping volumes geometrical model；
The geometrical model of geometrical model and the multiple 3rd clipping volume to second cuboid carries out boolean and subtracts fortune
Calculate, obtain the geometrical model of the fixed weight.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 4th of first aspect kind, wherein：
The material parameter for receiving user's input, the geometrical model based on the material parameter and the mechanical pendulum
The physical model of the mechanical pendulum is generated, including：
The self-defined material parameter of user is received, the self-defined material parameter includes：Material category, the fixed weight
With the Poisson's ratio μ 2 of the swing Poisson's ratio μ 1 of weight, elastic modulus E 1, density p 1, and the reed, elastic modulus E 2,
Density p 2；
Self-defined material parameter and the mechanical pendulum geometrical model based on the user, are that the mechanical pendulum is allocated
Corresponding material, generates the physical model of the mechanical pendulum.
Second aspect, the embodiments of the invention provide a kind of dress of the acquisition geophone intrinsic frequency based on FEM model
Put, the mechanical pendulum is made up of two reeds, fixed weight and swing weight, the free end of the mechanical pendulum swings weight by described
The top of hammer, the fixed weight and described two reeds is constituted, and the restrained end of the mechanical pendulum is by the bottom of described two reeds
Portion is constituted, and described device includes：
First sets up module, for receiving User Defined structural parameters, and institute is set up respectively based on the custom parameter
State the geometrical model of two reeds, the fixed weight and the swing weight；
Second sets up module, for the geometry mould based on described two reeds, the fixed weight and the swing weight
Type, assembles to described two reeds, the fixed weight and the swing weight, obtains the geometry mould of the mechanical pendulum
Type；
Physical model generation module, the material parameter for receiving user's input, based on the material parameter and institute
The geometrical model for stating mechanical pendulum generates the physical model of the mechanical pendulum；
Mesh generation module, carries out mesh generation for the physical model to the mechanical pendulum, obtains the limited of mechanical pendulum
Meta-model.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the first of second aspect, wherein：
Described first sets up module, including：
First generation unit, the first custom parameter for receiving user's input, makes by oneself according to the first of the user
Adopted parameter, generates the geometrical model and the geometrical model of multiple first clipping volumes of the bottom plate of the reed；
First arithmetic element, geometrical model and the geometrical model of the multiple clipping volume for the bottom plate to the reed
Boolean subtraction calculation is carried out, the geometrical model of the reed is obtained.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of second of second aspect, wherein：
Described first sets up module, including：
Second generation unit, the second custom parameter for receiving user's input, makes by oneself according to the second of the user
Adopted parameter, generates the geometrical model of the first cuboid and the geometrical model of multiple second clipping volumes；
Second arithmetic element, for the geometrical model to the described first non-porous cuboid and the multiple second clipping volume
Geometrical model carries out Boolean subtraction calculation, obtains the geometrical model of the fixed weight.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the third of second aspect, wherein：
Described first sets up module, including：
3rd generation unit, the 3rd custom parameter for receiving user's input, makes by oneself according to the 3rd of the user the
Adopted parameter, sets up the geometrical model of the second cuboid and the geometrical model of multiple 3rd clipping volumes；
3rd arithmetic element, for the geometrical model to second cuboid and the geometry of the multiple 3rd clipping volume
Model carries out Boolean subtraction calculation, obtains the geometrical model of the fixed weight.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the 4th of second aspect kind, wherein：
The physical model generation module, including：
Receiving unit, the self-defined material parameter for receiving user, the self-defined material parameter includes：The fixation
Poisson's ratio μ 2, the springform of weight and the Poisson's ratio μ 1, elastic modulus E 1, density p 1 for swinging weight, and the reed
Measure E2, density p 2；
Distribution sheet of stores member, for the self-defined material parameter based on the user and the mechanical pendulum geometrical model, be
The mechanical pendulum geometrical model carries out configuring corresponding material properties, generates the physical model of the mechanical pendulum.
A kind of modeling method of geophone mechanical pendulum provided in an embodiment of the present invention, is given birth to by user's self-defined structure parameter
Into the geometrical model of mechanical pendulum building block, then the geometrical model of each part is assembled, the several of mechanical pendulum are obtained
What model, then carries out setting material properties to the aggregation model of mechanical pendulum, the physical model of mechanical pendulum is obtained, to physical model
The FEM model that mesh generation obtains mechanical pendulum is carried out, and then there is provided a kind of mechanical pendulum FEM model, is easy to work people
Member the performance of mechanical pendulum is analyzed.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows the structural representation of mechanical pendulum in the embodiment of the present invention；
Fig. 2 shows a kind of flow signal of the modeling method for geophone mechanical pendulum that the embodiment of the present invention one is provided
Figure；
Fig. 3 a show the mesh generation figure for the swing weight that the embodiment of the present invention one is provided；
Fig. 3 b show the later grid chart of the mesh generation for the swing weight that the embodiment of the present invention one is provided；
Fig. 3 c show the mesh generation figure for the reed that the embodiment of the present invention one is provided；
Fig. 3 d show the grid chart obtained after the mesh generation for the reed that the embodiment of the present invention one is provided；
Fig. 4 shows a kind of structural representation of the model building device for geophone mechanical pendulum that the embodiment of the present invention two is provided
Figure.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Middle accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
It is a part of embodiment of the invention, rather than whole embodiments.The present invention being generally described and illustrated herein in the accompanying drawings is real
Applying the component of example can be arranged and be designed with a variety of configurations.Therefore, it is of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the scope of claimed invention, but is merely representative of the selected reality of the present invention
Apply example.Based on embodiments of the invention, the institute that those skilled in the art are obtained on the premise of creative work is not made
There is other embodiment, belong to the scope of protection of the invention.
At present, mechanical pendulum-type seismometer of short cycle, the determinant of the sensitivity of seismometer is the intrinsic frequency of geophone
Or the referred to as original natural frequency of vibration, the original natural frequency of vibration of geophone determines by the structural parameters and material parameter of geophone,
The acquisition to the original natural frequency of vibration of geophone is all to carry out batch sampling observation after geophone production is completed to survey in the prior art
Measure, and the analysis calculating process of its performance and to due to size adjusting be all to the influence degree of geophone performance by
Staff is judged that workload is larger according to the working experience of oneself；Mechanical pendulum is the primary structure of geophone, limited
Meta-model is used to automobile modeling and conveyer belt modeling, and ability can be significantly facilitated by the model for setting up geophone mechanical pendulum
Field technique personnel are analyzed and optimized to the performance of geophone, and based on this, the embodiments of the invention provide a kind of geophone machine
The modeling method and device of tool pendulum.
Carry out that the present invention is discussed in detail below by specific embodiment.
Embodiment one
A kind of modeling method of geophone mechanical pendulum is provided in the present embodiment, shown in reference picture 1, the mechanical pendulum is by two
Reed 13, fixed weight 12 and swing weight 11 are constituted, and are swung and are passed through circle between weight 11, fixed weight 12 and two reeds 13
Shape through hole coordinates the mode of pin to be attached, and the free end of mechanical pendulum is by swing weight 11, fixed weight 12 and two reeds
13 top is constituted, and the restrained end of mechanical pendulum is made up of the bottom of two reeds 13, shown in reference picture 2, the geophone mechanical pendulum
Modeling method comprise the following steps：
S20, reception User Defined structural parameters, two reeds, the fixation are set up based on the custom parameter respectively
The geometrical model of weight and the swing weight；
Wherein, setting up the process of the geometrical model of reed includes：
The first custom parameter of user's input is received, the first custom parameter inputted according to the user generates reed
Bottom plate geometrical model and the geometrical model of multiple first clipping volumes；
The geometrical model of geometrical model to the bottom plate of above-mentioned reed and described multiple clipping volumes carries out Boolean subtraction calculation,
Obtain the geometrical model of the reed；
The geometrical model of reed bottom plate and the geometrical model of multiple first clipping volumes are initially set up during above-described embodiment,
Geometrical model to the geometrical model of reed bottom plate respectively with multiple first clipping volumes carries out Boolean subtraction calculation, obtains the several of reed
What model；
Above-mentioned reed bottom plate is a regular cuboid, first custom parameter include the length of reed bottom plate, width and
Thickness, includes length, the thickness and width of the first cuboid clipping volume and the second cuboid clipping volume, and the first cylinder
The diameter and height of clipping volume；After the first custom parameter according to above-mentioned user, system can automatically generate reed bottom plate
Geometrical model, the geometrical model of the first cuboid clipping volume, the geometrical model of the second cuboid clipping volume and cylinder cut
The geometrical model of body, after obtaining the geometrical model, by the geometrical model of reed bottom plate respectively with the first cuboid clipping volume
The geometrical model of the cylindrical clipping volume of geometrical model, the geometrical model of the second cuboid clipping volume and first carries out boolean and subtracts fortune
Calculate, obtain the geometrical model of reed, the reed finally to be obtained is the square frame-shaped of opening, including a horizontal frame and two it is vertical
It is provided with frame, the horizontal frame in top of reed on two manholes, the bottom of the vertical frame in bottom two of reed
It is respectively arranged with a manhole；The structure of two above-mentioned reeds is identical.
Further, setting up the process of fixed weight geometrical model includes：
The second custom parameter of user's input is received, the second custom parameter inputted according to the user, generation first
The geometrical model of the geometrical model of non-porous cuboid and multiple second clipping volumes；
The geometrical model of geometrical model and multiple second clipping volumes to the first above-mentioned non-porous cuboid carries out boolean and subtracted
Computing, is fixed the geometrical model of weight；
The second above-mentioned custom parameter includes：Length, width and the thickness of first non-porous cuboid, by the length,
The parameter of width and thickness sets up the geometrical model of the first non-porous cuboid, and above-mentioned second custom parameter also includes second and cut
The parameter of body, second clipping volume includes the diameter and height of the second cylindrical clipping volume, according to the second cylindrical clipping volume
Diameter and height generate the second clipping volume geometrical model, according to the geometrical model of the first non-porous cuboid and multiple second
The geometrical model of cylindrical clipping volume carries out Boolean subtraction calculation, obtains the geometrical model of weight, the fixation weight finally to be obtained
Geometrical model for one rule cuboid, be provided with four manholes.
The process for the geometrical model that above-mentioned foundation swings weight includes：
The 3rd custom parameter with input family is received, according to the 3rd custom parameter of the user, the second length is set up
The geometrical model of the geometrical model of cube and multiple 3rd clipping volumes；
The geometrical model of geometrical model and the multiple 3rd clipping volume to second cuboid carries out boolean and subtracts fortune
Calculate, obtain the geometrical model of the fixed weight；
Above-mentioned 3rd custom parameter includes：Swing length, width and the thickness of the non-porous cuboid of weight, and the 3rd circle
The diameter and height of cylindricality clipping volume, set up swing weight non-porous according to the length of the swing weight cuboid, width and thickness
The geometrical model of cuboid, the geometry mould of the 3rd cylindrical clipping volume is set up according to the diameter and height of the 3rd cylindrical clipping volume
Type, the geometrical model of the cylindrical clipping volume of geometrical model and the 3rd to the above-mentioned non-porous cuboid of swing weight carries out boolean and subtracts fortune
Calculate the geometrical model for obtaining swinging weight.
S22, the geometrical model based on above-mentioned two reed, fixed weight and swing weight, to the geometry mould of two reeds
The geometrical model of type, the geometrical model of fixed weight and swing weight is assembled, and obtains the geometrical model of mechanical pendulum；
S24, the material parameter for receiving user's input, the geometrical model generation mechanical pendulum based on material parameter and mechanical pendulum
Physical model；
The self-defined material parameter of above-mentioned reception user, the self-defined material parameter includes：Material category, fixed weight with
Swing the Poisson's ratio μ 1 of weight, elastic modulus E 1, density p 1, and the Poisson's ratio μ 2 of reed, elastic modulus E 2, density p 2；
The self-defined material parameter inputted based on above-mentioned user and mechanical pendulum geometrical model obtained above, for the mechanical pendulum
Geometrical model carries out configuring corresponding material properties, generates the physical model of the mechanical pendulum.
Material properties can be：The material that fixed weight and swing weight are used is brass, and the material that reed is used is beryllium
Bronze.
S26, the physical model to mechanical pendulum carry out mesh generation, obtain the FEM model of mechanical pendulum；
In the present embodiment, mesh generation is carried out to mechanical pendulum geometrical model using free mesh method, due to mechanical pendulum
Package assembly is irregular shape, using free mesh method, and system can choose net automatically according to different planforms
Trellis shape, FEM model can be quickly set up compared to manual grid division.
Further, shown in reference picture 3a~3b, in a certain specific embodiment, fixed weight mesh generation process bag
Include：
Due to there are four identical manholes of size on fixed weight geometrical model, used in grid division
Sweep method grid divisions, it is preferable that set the self-defined material parameter to be：Cell type solid186, modulus of elasticity 1.0 ×
1011Pa, Poisson's ratio 0.33, density 8500kg/m3。
As shown in Figure 3 a, straight line P1、P2With circle P3、P4、P5、P6At grade, the face is source face；Due to fixed weight
For symmetric body, so corresponding symmetric body backsight face is target face.When to the geometrical model grid division, it is considered to its side
Boundary is regular cuboid, and cuboid includes four manholes, so, select boundary line P1、P2Element length be 1 millimeter；Four
Individual manhole is in grid division, because the closeer precision when carrying out finite element analysis of grid is higher, so line P3、P4、P5、
P6Element length be 0.5 millimeter；Body Sweep operations are performed to there is hole to fix weight, source face is X1, and target face is X2.
Such as Fig. 3 b are shown using the grid chart after Sweep grid divisions, scan generation hexahedron and wedge shaped element.
Shown in reference picture 3c, Fig. 3 d, reed mesh generation process includes：
Reed is also symmetric body structure containing four manholes, using Sweep grid divisions, scan generation for six
Face volume mesh；The self-defined material parameter is set to be：Cell type solid186, modulus of elasticity 1.28 × 1011Pa, Poisson's ratio
0.35th, density 8900kg/m3。
Line Bn(n=1,2,3....12) in the same plane, chooses the face for source face X3, and the backsight face of reed is target
Face X4, wherein Bn(n=1,2,3....8) is straight line, Bn(n=9,10,11,12) it is circle.
To improve accuracy, line Bn(n=1,2,3....8) is straight line, and it is 1 millimeter to set grid cell length；Line Bn(n
=9,10,11,12) it is circle, it is 0.5 millimeter to set grid cell length.
The operation of Sweep mesh generations is performed to reed, it is source face to specify X3, and X4 is target face, the straight line in the X3 of source face
1 millimeter of grid cell length, round grid cell length is 0.5 millimeter.Reed grid is generated, shown in reference picture 3c, generation six
Face body unit.
By 1 millimeter of setting unit length, the grid comparison rule of Sweep generations, density degree disclosure satisfy that requirement.
It is irregular geometrical model due to swinging weight geometrical model when carrying out carrying out mesh generation to swinging weight,
So using free mesh method, generating tetrahedral grid, grid precision is 6, and the self-defined material parameter of setting is：Unit class
Type solid186, modulus of elasticity 1.0 × 1011Pa, Poisson's ratio 0.33, density 8500kg/m3。
A kind of a kind of modeling method of provided geophone mechanical pendulum of above-described embodiment, is realized as geophone mechanical pendulum
FEM model is set up, one kind is provided reliably, just for staff by the FEM model of the geophone mechanical pendulum of foundation
Just progress geophone working characteristics, architectural characteristic and the instrument of material property research, can be by changing any of mechanical pendulum
Size and material quickly obtain the intrinsic frequency of geophone, instruct the production work of geophone；For example, the motion of mechanical pendulum is two
Rank system motion, setting up FEM model can analyze thirdly rank and above mode of motion, carry out model analysis, each rank mould of research
The frequency of state；Change the structure composition of mechanical pendulum, model analysis is carried out afterwards, analytical structure changes the influence changed to the vibration shape；
Change the material of different structure, analysis mechanical pendulum uses degree of impairment during different materials.
Embodiment two
Shown in reference picture 4, a kind of device of the modeling of geophone mechanical pendulum, described mechanical pendulum are provided in the present embodiment
It is made up of two reeds, fixed weight and swing weight, the free end of mechanical pendulum is by swing weight, fixed weight and two reeds
Top constitute, swing and coordinate pin to be attached by manhole between weight, fixed weight and two reeds, mechanical pendulum
Restrained end be made up of the bottom of two reeds, the device includes：
First sets up module 40, for receiving User Defined structural parameters, and two are set up respectively based on the custom parameter
The geometrical model of individual reed, the fixed weight and the swing weight；
Second sets up module 42, for based on above-mentioned two reed, fixed weight and the geometrical model for swinging weight, to two
Individual reed, fixed weight and swing weight are assembled, and obtain the geometrical model of mechanical pendulum；
Physical model generation module 44, the material parameter for receiving user's input, based on the material parameter and mechanical pendulum
Geometrical model generate mechanical pendulum physical model；
Mesh generation module 46, carries out mesh generation for the physical model to mechanical pendulum, obtains the finite element of mechanical pendulum
Model.
Further, above-mentioned first module is set up, including：
First generation unit, the first custom parameter for receiving user's input, makes by oneself according to the first of the user
Adopted parameter, generates the geometrical model and the geometrical model of multiple first clipping volumes of the bottom plate of the reed；
First arithmetic element, geometrical model and the geometrical model of the multiple clipping volume for the bottom plate to the reed
Boolean subtraction calculation is carried out, the geometrical model of the reed is obtained.
Further, above-mentioned first module is set up, including：
Second generation unit, the second custom parameter for receiving user's input, according to the second of user the self-defined ginseng
Number, generates the geometrical model of the first cuboid and the geometrical model of multiple second clipping volumes；
Second arithmetic element, for the geometrical model to the first non-porous cuboid and the geometrical model of multiple second clipping volumes
Boolean subtraction calculation is carried out, the geometrical model of the fixed weight is obtained.
Above-mentioned first sets up module, including：
3rd generation unit, the 3rd custom parameter for receiving user's input, makes by oneself according to the 3rd of the user the
Adopted parameter, sets up the geometrical model of the second cuboid and the geometrical model of multiple 3rd clipping volumes；
3rd arithmetic element, for the geometrical model to second cuboid and the geometry of the multiple 3rd clipping volume
Model carries out Boolean subtraction calculation, obtains the geometrical model of the fixed weight.
Above-mentioned physical model generation module, including：
Receiving unit, the self-defined material parameter for receiving user, the self-defined material parameter includes：The fixation
Poisson's ratio μ 2, the springform of weight and the Poisson's ratio μ 1, elastic modulus E 1, density p 1 for swinging weight, and the reed
Measure E2, density p 2；
Distribution sheet of stores member, for the self-defined material parameter based on the user and the mechanical pendulum geometrical model, be
The mechanical pendulum carries out configuring corresponding material properties, generates the physical model of the mechanical pendulum.
The computer program product for the geophone mechanical pendulum that the embodiment of the present invention is provided, including store program code
Computer-readable recording medium, the instruction that described program code includes can be used for performing the side described in previous methods embodiment
Method, implements and can be found in embodiment of the method, will not be repeated here.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the module of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
, can be with several embodiments provided herein, it should be understood that disclosed module, apparatus and method
Realize by another way.Device embodiment described above is only schematical, for example, the division of the unit,
It is only a kind of division of logic function, there can be other dividing mode when actually realizing, in another example, multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or beg for
The coupling each other of opinion or direct-coupling or communication connection can be by some communication interfaces, device or unit it is indirect
Coupling is communicated to connect, and can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of modeling method of geophone mechanical pendulum, the mechanical pendulum is made up of two reeds, fixed weight and swing weight,
The free end of the mechanical pendulum is constituted at the top of the swing weight, the fixed weight and described two reeds, the pendulum
Pin is coordinated to be attached by manhole between dynamic weight, fixed weight and two reeds, the restrained end of the mechanical pendulum
It is made up of the bottom of described two reeds, it is characterised in that methods described includes：
User Defined structural parameters are received, described two reeds, the fixed weight are set up based on the custom parameter respectively
The geometrical model of hammer and the swing weight；
Based on the geometrical model of described two reeds, the fixed weight and the swing weight, to described two reeds, described
Fixed weight and the swing weight are assembled, and obtain the geometrical model of the mechanical pendulum；
The material parameter of user's input is received, the geometrical model generation based on the material parameter and the mechanical pendulum is described
The physical model of mechanical pendulum；
Mesh generation is carried out to the physical model of the mechanical pendulum, the FEM model of mechanical pendulum is obtained.
2. according to the method described in claim 1, it is characterised in that the reception User Defined structural parameters, based on described
Custom parameter sets up the geometrical model of described two reeds, the fixed weight and the swing weight respectively, including：
The first custom parameter of user's input is received, according to the first custom parameter of the user, the reed is generated
The geometrical model of the geometrical model of bottom plate and multiple first clipping volumes；
The geometrical model of geometrical model and the multiple clipping volume to the bottom plate of the reed carries out Boolean subtraction calculation, obtains institute
State the geometrical model of reed.
3. according to the method described in claim 1, it is characterised in that the reception User Defined structural parameters, it is based on
The custom parameter sets up the geometrical model of described two reeds, the fixed weight and the swing weight respectively, also wraps
Include：
The second custom parameter of user's input is received, according to the second custom parameter of the user, the first cuboid is generated
Geometrical model and multiple second clipping volumes geometrical model；
The geometrical model of geometrical model and the multiple second clipping volume to the described first non-porous cuboid carries out boolean and subtracts fortune
Calculate, obtain the geometrical model of the fixed weight.
4. according to the method described in claim 1, it is characterised in that the reception User Defined structural parameters, based on described
Custom parameter sets up the geometrical model of described two reeds, the fixed weight and the swing weight respectively, in addition to：
The 3rd custom parameter with input family is received, according to the 3rd custom parameter of the user, the second cuboid is set up
Geometrical model and multiple 3rd clipping volumes geometrical model；
The geometrical model of geometrical model and the multiple 3rd clipping volume to second cuboid carries out Boolean subtraction calculation, obtains
To the geometrical model of the fixed weight.
5. according to the method described in claim 1, it is characterised in that the material parameter for receiving user's input, it is based on
The geometrical model of the material parameter and the mechanical pendulum generates the physical model of the mechanical pendulum, including：
The self-defined material parameter of user is received, the self-defined material parameter includes：Material category, the fixed weight and institute
State the Poisson's ratio μ for swinging weight1, elastic modulus E1, density p1, and the reed Poisson's ratio μ2, elastic modulus E2, density
ρ2；
Self-defined material parameter and the mechanical pendulum geometrical model based on the user, are that the mechanical pendulum geometrical model is carried out
Corresponding material properties are configured, the physical model of the mechanical pendulum is generated.
6. a kind of device of the modeling of geophone mechanical pendulum, the mechanical pendulum is by two reeds, fixed weight and swings weight structure
Into the free end of the mechanical pendulum is constituted at the top of the swing weight, the fixed weight and described two reeds, described
Swing coordinates pin to be attached between weight, fixed weight and two reeds by manhole, the constraint of the mechanical pendulum
End is made up of the bottom of described two reeds, it is characterised in that described device includes：
First sets up module, for receiving User Defined structural parameters, and described two are set up respectively based on the custom parameter
The geometrical model of individual reed, the fixed weight and the swing weight；
Second sets up module, right for the geometrical model based on described two reeds, the fixed weight and the swing weight
Described two reeds, the fixed weight and the swing weight are assembled, and obtain the geometrical model of the mechanical pendulum；
Physical model generation module, the material parameter for receiving user's input, based on the material parameter and the machine
The geometrical model of tool pendulum generates the physical model of the mechanical pendulum；
Mesh generation module, carries out mesh generation for the physical model to the mechanical pendulum, obtains the finite element mould of mechanical pendulum
Type.
7. device according to claim 6, it is characterised in that described first sets up module, including：
First generation unit, the first custom parameter for receiving user's input, according to the first of the user the self-defined ginseng
Number, generates the geometrical model and the geometrical model of multiple first clipping volumes of the bottom plate of the reed；
First arithmetic element, is carried out for the geometrical model of the bottom plate to the reed and the geometrical model of the multiple clipping volume
Boolean subtraction calculation, obtains the geometrical model of the reed.
8. device according to claim 6, it is characterised in that described first sets up module, including：
Second generation unit, the second custom parameter for receiving user's input, according to the second of the user the self-defined ginseng
Number, generates the geometrical model of the first cuboid and the geometrical model of multiple second clipping volumes；
Second arithmetic element, for the geometrical model to the described first non-porous cuboid and the geometry of the multiple second clipping volume
Model carries out Boolean subtraction calculation, obtains the geometrical model of the fixed weight.
9. device according to claim 6, it is characterised in that described first sets up module, including：
3rd generation unit, the 3rd custom parameter for receiving user's input, according to the 3rd self-defined ginseng of the user
Number, sets up the geometrical model of the second cuboid and the geometrical model of multiple 3rd clipping volumes；
3rd arithmetic element, for the geometrical model to second cuboid and the geometrical model of the multiple 3rd clipping volume
Boolean subtraction calculation is carried out, the geometrical model of the fixed weight is obtained.
10. device according to claim 6, it is characterised in that the physical model generation module, including：
Receiving unit, the self-defined material parameter for receiving user, the self-defined material parameter includes：The fixed weight
With the Poisson's ratio μ 2 of the swing Poisson's ratio μ 1 of weight, elastic modulus E 1, density p 1, and the reed, elastic modulus E 2,
Density p 2；
Distribution sheet of stores member, is described for the self-defined material parameter based on the user and the mechanical pendulum geometrical model
Mechanical pendulum carries out configuring corresponding material properties, generates the physical model of the mechanical pendulum.
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Cited By (1)
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| CN109709600A (en) * | 2019-03-06 | 2019-05-03 | 防灾科技学院 | Reaction type earthquake vibration pickup mechanical pendulum and its design method |
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