CN112632664A - Modeling method of external packing rockery supporting structure - Google Patents
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Abstract
The invention discloses a modeling method of an external packing rockery supporting structure, which comprises the steps of establishing truss axes in modeling software with a programming interface, and correspondingly establishing a container for each truss axis; extracting coordinate points of line segment end points on the truss axis and storing the coordinate points into corresponding containers; removing overlapped coordinate points, and respectively recording distances between a coordinate point on the axis of the currently processed truss and a corresponding nearest coordinate point and a next nearest coordinate point on the axis of the adjacent truss as L1 and L2; establishing tie bar axes by comparing the magnitude of M to the difference between L2-L1; extracting coordinate points of four end points of the axes of adjacent tie rods and automatically establishing a load guide virtual surface unit to form a load guide virtual surface; and loading the load on the load guide virtual surface, establishing a truss and a tie rod by combining finite element analysis software, and calculating the material and the section size to complete the modeling of the external packing rockery supporting structure. The invention can improve the modeling efficiency, the modeling precision and the modification.
Description
Technical Field
The invention relates to the field of modeling of an external packing support steel structure, in particular to a modeling method of an external packing rockery support structure.
Background
In the landscape design of cultural tourism, rockery becomes an essential scenic spot project in theme parks and theme parks. An exterior package rockery support structure is required to be designed before rockery construction for supporting the load strength of the rockery exterior package skin and the load strength of the building supported thereby. An exterior rockery supporting structure generally includes a plurality of trusses and tie bars between the trusses. In the modeling method of the external packing rockery supporting structure in the prior art, a drafter adopts modeling software such as CAD and the like to draw the supporting structure by manually operating a mouse. And the tie bar is established by matching human vision with mouse points, so that the workload is large, the visual fatigue is easily caused, and the modeling error is easily caused by the visual fatigue, so that the modeling precision is low. Particularly for projects such as rockery with a large area, the manual modeling according to a draughter has huge workload and is easy to cause visual fatigue, and related parts also need to be modified one by one during modification and adjustment, so that omission is easy, the modeling period is long, and the modeling efficiency is low. In addition, in the prior art, when the load guide virtual surface is established on the external package rockery supporting structure, the load guide virtual surface is completely covered on the axes of the two trusses and the axes of the two tie bars connected with the trusses, the load guide virtual surface consists of a plurality of load guide virtual surface unit surfaces, and each load guide virtual surface unit surface is distributed between the axes of the two adjacent trusses and the axes of the two tie bars connected between the two adjacent trusses. Therefore, each load-conducting virtual surface unit surface needs to be established independently, and therefore, the defects of low modeling efficiency, low modeling precision, long modeling period and inconvenience in modification are also caused. And when errors occur in modeling of the tie rod axis and the load conducting virtual surface, load analysis on the external package rockery supporting structure is influenced, so that the shape selection of materials of the truss axis and the tie rod axis and the adaptation of the section size are influenced, and the supporting strength of the external package rockery supporting structure after construction is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a modeling method of an external packing rockery supporting structure, which is used for shortening the modeling period, improving the modeling efficiency, improving the modeling precision, facilitating modification and reasonably matching the material selection and the section size adaptation of the external packing rockery supporting structure.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a method of modeling an overwrap rockery support structure, comprising:
building truss axes of an external packing rockery supporting structure in modeling software with a programming interface, wherein each truss axis consists of a plurality of line segments;
correspondingly establishing a container for each truss axis;
extracting coordinate points of end points of all line sections on the axis of each truss frame according to the processing direction and storing the coordinate points into corresponding containers;
removing overlapped coordinate points in each container;
finding out all coordinate points on the axis of the current processing truss and corresponding nearest coordinate points and next nearest coordinate points on the axis of the adjacent truss by taking the axes of the two adjacent trusses as a group according to the coordinate points in the container;
setting the distance between each coordinate point on the axis of the current processing truss and the corresponding nearest coordinate point on the axis of the adjacent truss to be L1, and calculating the length of L1;
setting the distance between each coordinate point on the axis of the current processing truss and the corresponding next closest coordinate point on the axis of the adjacent truss to be L2, and calculating the length of L2;
comparing the difference value of L2-L1 with the magnitude relation of M to automatically establish a tie rod axis, automatically connecting each coordinate point with the nearest coordinate point to establish the tie rod axis of the outer package rockery supporting structure when L2-L1> M, and automatically connecting each coordinate point with the nearest coordinate point and the next nearest coordinate point simultaneously to establish the tie rod axis of the outer package rockery supporting structure when L2-L1 is less than or equal to M, wherein M is a preset distance, and M is a positive number;
traversing tie rod axes between each group of truss axes, taking two adjacent tie rod axes as a group, extracting coordinate points of four end points of each group of two adjacent tie rod axes, sequentially connecting the four coordinate points in the same direction by taking one of the coordinate points as a starting point, and automatically establishing a load conducting virtual surface unit until all load conducting virtual surface units of the external packing rockery supporting structure are automatically established to form a load conducting virtual surface;
and loading the load of the outer package rockery skin and the load transferred by the building on the load-conducting virtual surface, establishing the truss frames and the tie bars of the outer package rockery supporting structure according to the truss frame axis and the tie bar axis in a one-to-one correspondence mode by combining finite element analysis software, and calculating the materials and the sectional dimensions of the truss frames and the tie bars of the outer package rockery supporting structure to complete the modeling of the outer package rockery supporting structure.
Furthermore, the modeling method of the external package rockery supporting structure provided by the invention sequences the tie rod axes between the adjacent truss axes before the load-conducting virtual surface unit is established.
Further, the modeling method of the external packing rockery supporting structure provided by the invention comprises the following steps of:
finding the center point of each tie rod axis;
projecting each central point to the axis of the current processing truss between two adjacent truss axes in a one-to-one correspondence manner to form a projection point;
calculating the distance between the central point of one end of the current processing truss axis and each projection point by taking the end point of one end of the current processing truss axis as a base point;
and sequencing the tie bar axes where the central points corresponding to the projection points are located according to the sequence of the distance from the base point to each projection point from near to far or from far to near.
Further, according to the modeling method of the external packing rockery supporting structure provided by the invention, when the load-conducting virtual surface units are established, the sequence of the same direction is clockwise or anticlockwise.
Furthermore, the modeling method of the external packing rockery supporting structure provided by the invention has the preset distance of M being more than or equal to 100 and less than or equal to 300 mm.
Furthermore, according to the modeling method of the outer package rockery supporting structure provided by the invention, the trusses and the tie bars of the outer package rockery supporting structure are made of single metal or alloy.
Further, the modeling method of the external packing rockery supporting structure provided by the invention is characterized in that the tie rod axis and the load conducting virtual surface unit are established by calling coordinate point data in the container automatically through programming by modeling software with a programming interface.
Further, according to the modeling method of the external packing rockery supporting structure provided by the invention, the sequence of establishing the tie rod axis and the load-guiding virtual surface unit is as follows:
firstly, establishing tie bar axes among a group of truss axes, and then respectively establishing load conducting virtual surface units between the group of truss axes by taking two adjacent tie bar axes as a unit to form load conducting virtual surface groups; and then, circularly executing the establishment of the tie rod axis and the load guide virtual surface group between the axes of the next group of trusses until a complete load guide virtual surface is formed.
Further, according to the modeling method of the external packing rockery supporting structure provided by the invention, the sequence of establishing the tie rod axis and the load-guiding virtual surface unit is as follows:
firstly, establishing all tie bar axes between the axes of the adjacent trusses, and then establishing a load conducting virtual surface unit by taking the two adjacent tie bar axes as a unit to form a complete load conducting virtual surface.
Compared with the prior art, the invention has the following beneficial effects:
according to the modeling method of the external packing rockery supporting structure, the establishment of the tie rod axis and the establishment of the load-conducting virtual surface are all automatically processed through modeling software with a programming interface, manual establishment of a mouse is not needed, errors caused when a drafter establishes the tie rod axis and the load-conducting virtual surface due to visual fatigue are overcome, therefore, the modeling efficiency and the modeling precision are improved, and the modeling period is shortened. The effect is more obvious for large projects.
According to the modeling method of the outer package rockery supporting structure, provided by the invention, through programming automatic modeling, when the size of the outer package rockery supporting structure changes or the structural design changes, the data of the coordinate points can be automatically associated, modified and adjusted, modification is facilitated, manual modification of each associated part is not needed, omission of the associated part is avoided, and the reliability and integrity of the modeling design after modification are ensured.
According to the modeling method of the external package rockery supporting structure, provided by the invention, as the precision of the load-guiding virtual surface is improved, the load force loaded on the load-guiding virtual surface can accurately calculate the material and the sectional dimension of the truss frame and the tie bar of the external package rockery supporting structure through finite element analysis software, so that the material selection and the sectional dimension of the external package rockery supporting structure are reasonably matched, and the supporting strength of the external package rockery supporting structure is ensured.
According to the modeling method of the external packing rockery supporting structure, coordinate point data of line segment end points on the truss axis can be stored through the established container, the tie bar axis is established according to conditions established by the tie bar axis through the coordinate point data, and the load-guiding virtual surface unit is established according to the coordinate points of the end points of the adjacent tie bar axes, so that the automation of establishing the tie bar axis and the load-guiding virtual surface is realized.
According to the modeling method of the external packing rockery supporting structure, provided by the invention, through the duplicate removal processing of the overlapped coordinate points, the operation speed can be increased so as to improve the modeling efficiency, and the redundant coordinate data is prevented from increasing the operation amount.
According to the modeling method of the external package rockery supporting structure, the coordinate points are connected with the next nearest coordinate point to establish the tie rod axis, so that the adjacent tie rod axis and the adjacent truss axis are enclosed to form a large-area quadrangle which is divided into two triangles, and the overall stability and the supporting strength of the modeled external package rockery supporting structure are improved. The axis of the tie bar is established by connecting the coordinate point with the next nearest coordinate point, the uniformity among the load conducting virtual surface units can be ensured to the greatest extent, the overlarge area of one or more load conducting virtual surface units is avoided, and the loading force loaded on the load conducting virtual surface is more real and reliable to match reasonable materials and section sizes.
Drawings
FIG. 1 is a schematic view of a truss axis construction;
FIG. 2 is a schematic diagram of a model for establishing coordinate points in a container on the truss axis of FIG. 1;
FIG. 3 is a schematic structural diagram of a coordinate point for extracting an end point of a line segment on the truss axis in FIG. 2;
FIG. 4 is a schematic diagram of the structure of FIG. 3 with the overlapping coordinate points removed;
FIG. 5 is a schematic structural diagram of a nearest coordinate point and a next nearest coordinate point of coordinate points found in a truss axis group;
FIG. 6 is a schematic structural view of tie rod axes;
figures 7 to 8 are schematic structural views of sequencing of tie rod axes between a set of truss axes;
FIGS. 9 to 10 are schematic structural diagrams of a dummy plane unit for constructing a load-guiding structure;
FIG. 11 is a schematic diagram of an axis model and a dummy plane for guiding the load thereon;
fig. 12 to 13 are schematic diagrams of modeling an outer package support structure according to the load of the load guiding virtual surface;
shown in the figure:
1000. the outer package supporting structure comprises 1100, trusses, 1110, truss axes, 1111, line segments, 1111-1a, a line segment 1 starting point, 1111-1b, a line segment 1 end point, 1111-2a, a line segment 2 starting point, 1111-2b, a line segment 2 end point, 1200, a tie bar, 1210, a tie bar axis, 1211, a first tie bar axis, 1212, a second tie bar axis, 1300, a load conducting virtual surface, 1310, a load conducting virtual surface unit, S, a processing direction, Pt1 and Pt2 … … as coordinate points, Pt1 ', Pt 2' … … as nearest coordinate points, Pt1 ', Pt 2' … … as next nearest coordinate points, MP01 and MP02 … … as middle point tie bars, and MP01 'and MP 02' … … as projection points of the tie bar axes.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
referring to fig. 1 to 13, an embodiment of the invention provides a modeling method of an exterior rockery support structure, which includes the following steps:
in step 110, referring to fig. 1 to 2, a plurality of truss axes 1110 of the exterior rockery supporting structure are established in a modeling software with a programming interface, and each of the truss axes 1110 is composed of a plurality of line segments 1111. The modeling software includes but is not limited to CAD engineering drawing software, and the programming language of the programming interface includes but is not limited to lisp, vb, ARX (C + +), C #, and other open programming languages. Modeling software includes, but is not limited to, rhino, which may correspond to programming languages such as gradshopper (gh), Python, VB, C #, Java, and the like. Any engineering software which can be secondarily developed and only provides a programming interface can utilize the logic of the method to realize efficient and accurate modeling.
In step 120, referring to fig. 2, a container is built corresponding to each truss axis 1110. In the embodiment of the invention, 17 frame axes 1110 are taken as an example, and 17 containers are correspondingly established and are marked as GJ01 and GJ02 … … GJ 17. The number of the truss axes 1110 can be adjusted according to the engineering requirements. Wherein a container refers to a storage space.
In step 130, referring to fig. 3, coordinate points of end points of all line segments 1111 on each truss axis 1110 are extracted according to the processing direction and stored in corresponding containers. Each segment 1111 has two endpoints, which are respectively designated as a start point and an end point. The embodiment of the present invention will be described by taking a two-stage line segment on the first frame axis 1110 as an example. For example, coordinate points of a starting point 1111-1a and an end point 1111-1b of the line segment 1111-1 on the first truss axis 1110 are extracted, and coordinate points of a starting point 1111-2a and an end point 1111-2b of the line segment 1111-2 are extracted, wherein the end point 1111-1b of the line segment 1111-1 overlaps with the coordinate points of the starting point 1111-2a of the line segment 1111-2, and so on until the extraction operation of the end point coordinate points of all the line segments is completed, and the extracted coordinate points are stored in the container GJ 01; similarly, the end point coordinate points of the line segments of the second to seventeenth truss axes are stored in the corresponding containers, wherein the arrow S is the processing direction.
In step 140, please refer to fig. 4, the overlapped coordinate points in each container are removed. The embodiment of the present invention will be described by taking a two-stage line segment on the first frame axis 1110 as an example. One of the coordinate points of the end point 1111-1b of the line segment 1111-1 and the coordinate point of the start point 1111-2a of the line segment 1111-2 overlapped in the container GJ01 corresponding to the first truss axis 1110 is removed, and the coordinate point of the start point of each line segment is reserved in the embodiment of the invention for convenience of management and calculation. Taking line segments 1111-1 and 1111-2 as examples, the coordinate points of the starting point 1111-1a and 1111-2a are reserved. Through the duplicate removal processing of the overlapped coordinate points, the operation speed can be improved to improve the modeling efficiency, and the redundant coordinate data is prevented from increasing the operation amount.
Step 150, referring to fig. 5, using two adjacent truss axes 1110 as a group, finding out all coordinate points on the currently processed truss axis 1110 and the nearest coordinate points and the next nearest coordinate points corresponding to the truss axes 1110 on the adjacent truss axes 1110 according to the coordinate points in the container; when the number of the truss axes 1110 is set to N, the truss axis groups are N-1 groups, wherein N is a positive number. In the embodiment of the present invention, 17 truss axes 1110 constitute 17-1 to 16 sets of truss axes. Since the number of the truss axes 1110 is set in correspondence with the containers, the containers are grouped by the numbers thereof. That is, GJ01-GJ02 are the first group, GJ02-GJ03 are the second group, and so on, GJ15-GJ16 are the 15 th group, and GJ16-GJ17 are the 16 th group. In fig. 5, a truss axis 1110 corresponding to a container GJ01 is used as a main processing truss, and a truss axis 1110 corresponding to a container GJ02 is used as an adjacent truss. The nearest coordinate points of the coordinate point Pt1 of the container GJ01 corresponding to the container GJ02 are Pt1 'and the next nearest coordinate point Pt1 ", and the nearest coordinate points of the coordinate point Pt2 of the container GJ01 corresponding to the container GJ02 are Pt 2' and the next nearest coordinate point Pt 2". The nearest coordinate point Pt2 'and the second nearest coordinate point Pt 1' are coordinate points which are coincident.
Step 160, referring to fig. 5 to 6, setting the distance between each coordinate point on the current processing truss axis 1110 and the corresponding nearest coordinate point on the adjacent truss axis 1110 to be L1, and calculating the length of L1; setting the distance between each coordinate point on the axis 1110 of the current processing truss and the corresponding next closest coordinate point on the axis 1110 of the adjacent truss to be L2, and calculating the length of L2;
and comparing the difference value of L2-L1 with the magnitude relation of M to automatically establish a tie rod axis, automatically connecting each coordinate point with the nearest coordinate point to establish the tie rod axis 1210 of the outer package rockery supporting structure when L2-L1> M, and automatically connecting each coordinate point with the nearest coordinate point and the next nearest coordinate point simultaneously to establish the tie rod axis 1210 of the outer package rockery supporting structure when L2-L1 is less than or equal to M, wherein M is a preset distance, and M is a positive number. For example: the preset distance includes, but is not limited to, M is greater than or equal to 100 and less than or equal to 300mm, and the preset distance M can be adaptively adjusted as required. Referring to fig. 5 to 6, the distance between the coordinate Pt1 and the nearest coordinate Pt1 'is L1, the distance between the coordinate Pt1 and the next nearest coordinate Pt1 "is L2, and at this time, L2-L1 is equal to or less than M, and then the coordinate Pt1 connects the nearest coordinate Pt 1' and the next nearest coordinate Pt 1" to construct the tie-rod axis 1210. The distance between the coordinate point Pt2 and the nearest coordinate point Pt2 ' is L1, the distance between the coordinate point Pt2 and the next nearest coordinate point Pt2 ' is L2, and at the moment, L2-L1> M, so the coordinate point Pt1 is only connected with the nearest coordinate point Pt2 ' to construct the tie-bar axis 1210.
In step 170, referring to fig. 7 to 8, before the load guiding dummy surface unit 1310 is built, the tie rod axes 1210 between the adjacent truss axes 1110 are sorted. This step 170 is an optional step. The purpose of the sorting is to improve the work efficiency. Without this step 170, the programming instructions are inclusive during the execution phase to take advantage of the creation of tie-bar axes 1210 in an out-of-order state, the creation of tie-bar axes 1210 being completely dependent on the logical relationship the programming instructions execute themselves. After sequencing, the tie bar axes can be constructed in a sequencing order through programming instructions to achieve a quick, accurate, and orderly effect.
Step 180, referring to fig. 9 to 11, traversing the tie rod axes 1210 between each group of truss axes 1110, extracting coordinate points of four end points of each group of two adjacent tie rod axes 1210 by taking two adjacent tie rod axes 1210 as a group, and sequentially connecting four coordinate points in the same direction by taking one of the coordinate points as a starting point to automatically establish a load guiding virtual surface unit 1310 until all the load guiding virtual surface units 1310 of the exterior packing rockery supporting structure are automatically established to form the load guiding virtual surface 1300. It should be reminded that the groups in the embodiment of the present invention are all two adjacent groups, rather than every two adjacent groups. Taking the tie rod axis group as an example, the other middle tie rod axes except for the two tie rod axes at the outermost part are used twice, namely, are reused once. The set of truss axes is the same as the principle of the tie rod axes. Referring to fig. 9, the coordinates of the first end point and the second end point of the first tie rod axis 1211, which are Pt1 and Pt1 ', are stored in the container GJ01 and the container GJ02 in a one-to-one correspondence, and the coordinates of the first end point and the second end point of the second tie rod axis 1212, which are Pt2 and Pt 2', are stored in the container GJ01 and the container GJ02 in a one-to-one correspondence, respectively. The counterclockwise connection is used in fig. 9. Referring to fig. 10, the load-conducting virtual surface unit 1310 is constructed by connecting the four coordinate points Pt1, Pt1 ', Pt2 and Pt 2' of the tie bar axes. Referring to fig. 10 to 11, after all the dummy charge-conducting surface units 1310 are constructed, dummy charge-conducting surfaces 1300 are formed. Wherein the same directional order may be clockwise or counterclockwise. To ensure the performability of the automatic programming setup, all the dummy load cells 1310 of the embodiment of the present invention use the same direction. In order to ensure the rapidity of the judgment of the programming command and avoid confusion, the embodiment of the invention can take the coordinate point corresponding to the second endpoint of the tie bar axis below the tie bar axis in a group of tie bar axes as a starting point to connect in the clockwise or anticlockwise direction, so that the establishment direction and the connection sequence of the load-conducting virtual surface unit are kept consistent.
Step 190, referring to fig. 11 to 13, the load of the outer package rockery skin (not shown) and the load transferred by the building are loaded on the load guiding virtual surface 1300, the truss 1100 and the tie rod 1200 of the outer package rockery supporting structure are built in a one-to-one correspondence manner according to the truss axis 1110 and the tie rod axis 1210 by combining finite element analysis software, and the materials and the cross-sectional dimensions of the truss 1100 and the tie rod 1200 of the outer package rockery supporting structure are calculated, so as to complete the modeling of the outer package rockery supporting structure 1000. The materials of the truss 1100 and the tie rod 1200 of the outer package rockery supporting structure 1000 can be selected to be single metal or alloy according to the load force loaded by the load-conducting virtual surface. Wherein the single metal is mainly steel structure, and the alloy comprises aluminum alloy and other alloy materials. The built external packing rockery supporting structure 1000 can be reasonably matched with the loading force to meet the requirement of supporting strength.
According to the modeling method of the external packing rockery supporting structure provided by the embodiment of the invention, the establishment of the tie rod axis 1210 and the establishment of the load-conducting virtual surface 1300 are all automatically processed by modeling software with a programming interface, and the manual establishment by operating a mouse is not needed, so that errors caused when a draftsman establishes the tie rod axis 1210 and the load-conducting virtual surface 1300 due to visual fatigue are overcome, the modeling efficiency and the modeling precision are improved, and the modeling period is shortened. The effect is more obvious for large projects.
According to the modeling method of the external packing rockery supporting structure provided by the embodiment of the invention, through programming automatic modeling, when the size of the external packing rockery supporting structure 1000 changes or the structural design changes, modification and adjustment can be automatically associated according to the data of the coordinate points, modification is facilitated, manual modification of each associated part is not needed, omission of the associated part is avoided, and the reliability and integrity of the modeling design after modification are ensured.
According to the modeling method of the external packing rockery supporting structure provided by the embodiment of the invention, as the precision of the load guide virtual surface 1300 is improved, the load force loaded on the load guide virtual surface 1300 can accurately calculate the material and the sectional dimension of the truss 1100 and the tie rod 1200 of the external packing rockery supporting structure 1000 through finite element analysis software, so that the material selection and the sectional dimension of the external packing rockery supporting structure 1000 are reasonably matched, and the supporting strength of the external packing rockery supporting structure 1000 is ensured.
According to the modeling method of the external packing rockery supporting structure provided by the embodiment of the invention, the coordinate point data of the end points of the line segment 1111 on the truss axis 1110 can be stored through the established container, the tie rod axis 1210 is established according to the condition established by the tie rod axis 1210 through the coordinate point data, and the load-conducting virtual surface unit 1310 is established according to the coordinate points of the end points of the adjacent tie rod axis 1210, so that the automation of establishing the tie rod axis 1210 and the load-conducting virtual surface 1300 is realized.
According to the modeling method of the external package rockery supporting structure provided by the embodiment of the invention, the tie rod axis 1210 is established by connecting the coordinate point with the next closest coordinate point, so that a quadrangle with a large area formed by enclosing the adjacent tie rod axis 1210 and the adjacent truss axis 1110 is split into two triangles, and the overall stability and the supporting strength of the modeled external package rockery supporting structure 1000 are improved. The tie bar axis 1210 is established by connecting the coordinate point with the next closest coordinate point, and the uniformity among the load guiding virtual surface units 1310 can be ensured to the greatest extent, so that the overlarge area of one or more load guiding virtual surface units 1310 is avoided, and the load force loaded on the load guiding virtual surface 1300 is more real and reliable to match reasonable materials and section sizes. Since the line segments on the truss axis 1110 are not uniformly arranged at equal intervals and depend on the modeling curved surface relationship of the exterior rockery supporting structure, when the nearest coordinate point is connected to the target point, but not the next nearest coordinate point, the area of the quadrangle is too large, and the area of the load-conducting virtual surface unit of the quadrangle is too large, so that the supporting strength of the node is weak, and therefore, the quadrangle is divided into two triangles and the load-conducting virtual surface unit of the triangular surface is constructed through the connection of the next nearest coordinate point and the coordinate point, so that the supporting strength of the node is improved. Wherein, two triangles are approximate to isosceles triangles, so as to better improve the stability of the structural design.
Referring to fig. 7 to 8, in the modeling method of the exterior rockery supporting structure according to the embodiment of the present invention, the method for sequencing the tie rod axes in step 170 may include:
in step 171, please refer to fig. 7, the center points MP01 and MP02 … … MP11 of each tie rod axis 1210 are determined, but the embodiment of the present invention is exemplified by 11 tie rod axes 1210, but not limited thereto.
In step 172, referring to fig. 7, the central points MP01 and MP02 … … MP11 are projected onto the currently processed frame axis 1110 between two adjacent frame axes 1110 in a one-to-one correspondence manner to form projected points MP01 ' and MP02 ' … … MP11 '.
In step 173, referring to fig. 7, the distance between the end point of one end of the current processing truss axis 1110 (the whole end point of the current processing truss axis 1110 is two, and the starting point coordinate point Pt1 of the first segment of line segment is one of the end points) and each projection point is calculated by taking the end point as a base point.
Referring to fig. 7 to 8, the tie bar axes 1210 where the center points corresponding to the projection points are located are sorted according to the order of the distance from the base point to each projection point from near to far or from far to near, in step 174. The first tie rod axis 1211 and the second tie rod axis 1212 … … are arranged from bottom to top in the order from the near to the far.
The method for sequencing the tie bar axes in the embodiment of the invention can improve the method for constructing the tie bar axes out of order in program inclusion into the method for constructing the tie bar axes in order and regularly, so as to avoid confusion and repeated construction of the tie bar axes and improve the intelligent operation of the tie bar axes. Of course, the method of sequencing the tie bar axes is not limited to the specific embodiment described above.
In the modeling method of the external packing rockery supporting structure provided by the embodiment of the invention, the tie rod axis 1210 and the load conducting virtual surface unit 1310 are all established by using modeling software with a programming interface to automatically model coordinate point data in a container through programming call. The workload and the working strength of manual mouse modeling can be reduced, and errors caused by visual fatigue are avoided.
In the modeling method of the external packing rockery supporting structure provided by the embodiment of the present invention, the order of establishing the tie bar axis 1210 and the load-guiding virtual surface unit 1310 may be:
in step 201, tie bar axes 1210 between a group of truss axes 1110 are firstly established, and then load conducting virtual surface units 1310 are respectively established between a group of truss axes 1110 by taking two adjacent tie bar axes 1210 as a unit to form a group of load conducting virtual surfaces 1300.
In step 202, the tie bar axes 1210 and the load guiding virtual surface 1300 set between the next group of truss axes 1110 are circularly established until the complete load guiding virtual surface 1300 is formed.
In the modeling method of the external packing rockery supporting structure provided by the embodiment of the present invention, the order of establishing the tie bar axis 1210 and the load-guiding virtual surface unit 1310 may be:
in step 301, all tie bar axes 1210 between adjacent truss axes 1110 are first established.
In step 302, a loading dummy surface unit 1310 is built by two adjacent tie bar axes 1210 to form a complete loading dummy surface 1300.
Wherein all the truss axes 1110 and all the tie rod axes 1210 are built to form a linear model, namely a linear model, of the exterior rockery supporting structure 1000.
The embodiment of the invention is particularly suitable for modeling design of a large-scale and complex-modeling structural system, and has the advantages of high modeling efficiency and convenience for subsequent modification.
The present invention is not limited to the above-described specific embodiments, and it is apparent that the above-described embodiments are some, not all, of the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention. Other levels of modification and variation of the present invention may be made by those skilled in the art. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims.
Claims (9)
1. A method of modeling an overwrap rockery support structure, comprising:
building truss axes of an external packing rockery supporting structure in modeling software with a programming interface, wherein each truss axis consists of a plurality of line segments;
correspondingly establishing a container for each truss axis;
extracting coordinate points of end points of all line sections on the axis of each truss frame according to the processing direction and storing the coordinate points into corresponding containers;
removing overlapped coordinate points in each container;
finding out all coordinate points on the axis of the current processing truss and corresponding nearest coordinate points and next nearest coordinate points on the axis of the adjacent truss by taking the axes of the two adjacent trusses as a group according to the coordinate points in the container;
setting the distance between each coordinate point on the axis of the current processing truss and the corresponding nearest coordinate point on the axis of the adjacent truss to be L1, and calculating the length of L1;
setting the distance between each coordinate point on the axis of the current processing truss and the corresponding next closest coordinate point on the axis of the adjacent truss to be L2, and calculating the length of L2;
comparing the difference value of L2-L1 with the magnitude relation of M to automatically establish a tie rod axis, automatically connecting each coordinate point with the nearest coordinate point to establish the tie rod axis of the outer package rockery supporting structure when L2-L1> M, and automatically connecting each coordinate point with the nearest coordinate point and the next nearest coordinate point simultaneously to establish the tie rod axis of the outer package rockery supporting structure when L2-L1 is less than or equal to M, wherein M is a preset distance, and M is a positive number;
traversing tie rod axes between each group of truss axes, taking two adjacent tie rod axes as a group, extracting coordinate points of four end points of each group of two adjacent tie rod axes, sequentially connecting the four coordinate points in the same direction by taking one of the coordinate points as a starting point, and automatically establishing a load conducting virtual surface unit until all load conducting virtual surface units of the external packing rockery supporting structure are automatically established to form a load conducting virtual surface;
and loading the load of the outer package rockery skin and the load transferred by the building on the load-conducting virtual surface, establishing the truss frames and the tie bars of the outer package rockery supporting structure according to the truss frame axis and the tie bar axis in a one-to-one correspondence mode by combining finite element analysis software, and calculating the materials and the sectional dimensions of the truss frames and the tie bars of the outer package rockery supporting structure to complete the modeling of the outer package rockery supporting structure.
2. The modeling method for an exterior rockery supporting structure according to claim 1, wherein the tie rod axes between adjacent truss axes are ordered before the load-conducting virtual surface unit is established.
3. A method of modelling an over-packed rockery support structure according to claim 2, wherein the method of sequencing the tie rod axes comprises:
finding the center point of each tie rod axis;
projecting each central point to the axis of the current processing truss between two adjacent truss axes in a one-to-one correspondence manner to form a projection point;
calculating the distance between the central point of one end of the current processing truss axis and each projection point by taking the end point of one end of the current processing truss axis as a base point;
and sequencing the tie bar axes where the central points corresponding to the projection points are located according to the sequence of the distance from the base point to each projection point from near to far or from far to near.
4. The modeling method for an exterior rockery supporting structure according to claim 1, wherein said same direction sequence is clockwise or counterclockwise when the loading guide virtual surface unit is established.
5. The modeling method for an exterior rockery support structure according to claim 1, wherein the predetermined distance is 100. ltoreq. M.ltoreq.300 mm.
6. The modeling method of the exterior rockery support structure according to claim 1, wherein the trusses and tie bars of the exterior rockery support structure are made of a single metal or an alloy.
7. The modeling method for the exterior packaging rockery supporting structure according to claim 1, wherein the tie rod axis and the loading-inducing virtual surface unit are established by a modeling software having a programming interface and calling coordinate point data in the container by programming.
8. The modeling method of an exterior package rockery support structure according to claim 1, wherein the tie bar axis and the loading guide virtual surface unit are established in the following order:
firstly, establishing tie bar axes among a group of truss axes, and then respectively establishing load conducting virtual surface units between the group of truss axes by taking two adjacent tie bar axes as a unit to form load conducting virtual surface groups; and then, circularly executing the establishment of the tie rod axis and the load guide virtual surface group between the axes of the next group of trusses until a complete load guide virtual surface is formed.
9. The modeling method of an exterior package rockery support structure according to claim 1, wherein the tie bar axis and the loading guide virtual surface unit are established in the following order:
firstly, establishing all tie bar axes between the axes of the adjacent trusses, and then establishing a load conducting virtual surface unit by taking the two adjacent tie bar axes as a unit to form a complete load conducting virtual surface.
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