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Geometric model design method for rapid establishing car body concept

A technology of geometric model and conceptual design, which is applied in the field of establishing the geometric model of the conceptual design of the vehicle body, can solve the problems of complex finite element network model of the geometric model of the vehicle body, long design cycle, heavy workload, etc., to shorten the design cycle, reduce duplication of labor, fast build effect

Inactive Publication Date: 2008-05-14
胡平 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, due to the wide variety of car bodies, the geometric models of the car bodies and the finite element network models are relatively complex, which makes the conceptual design stage heavy workload, cumbersome process and long design cycle

Method used

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  • Geometric model design method for rapid establishing car body concept
  • Geometric model design method for rapid establishing car body concept
  • Geometric model design method for rapid establishing car body concept

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Embodiment 2

[0103] Embodiment 2 is based on the method of the present invention, which has been developed and implemented based on the UG / NXCAD platform of the vehicle body structure concept design tool - IVCD Tool, the method is based on the template technology, and integrates advanced designs such as knowledge engineering, parametric design, etc. Analysis technology can quickly establish a parametric conceptual body geometry model, generate a finite element mesh model and boundary constraint loads, perform strength and modal calculations through the NX Nastran solver, and generate design results and product plan reports required by designers. This method can also optimize the parameters of the beams and plates of the concept car body, guide and help users to obtain a satisfactory design plan, greatly shorten the time required for the concept design stage of the car body structure, and greatly reduce the difficulty of operation. Figure 8 It is the overall structure of the IVCDTool system...

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Abstract

The present invention discloses a fast establishing body conceptual design geometrical model method, by leading-in object oriented templet concept, through establishing vehicle type templet, constructing body templet library. The present invention can fast establish body conceptual design model, shortening body conceptual design or even entire car design cycle.

Description

technical field [0001] The invention relates to a method for establishing a conceptual design geometric model of a vehicle body. Background technique [0002] Body structure design is usually divided into conceptual design phase and detailed design phase. In the concept design stage of the car body, it is necessary to carry out strength design, modal analysis and optimization design of the car body structure, so that the strength defects and structural errors of the car body can be detected early, and it plays an important role in quickly selecting the car body structure form and determining the structural parameters. Therefore, the results and cycle of conceptual design will play a vital role in the quality and cycle of vehicle structure design. [0003] At present, the conceptual design of the body structure can be divided into four stages: the establishment of the geometric model, the generation of the finite element mesh model, the solution of the finite element model, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06T17/40G06T19/00
Inventor 胡平侯文彬丁祎李运兴
Owner 胡平