Early-stage concept development and topological optimization method for white body of car

A topology optimization, body-in-white technology, applied in the optimization field of actively building and modifying models, can solve the problem that CAE engineers cannot carry out structural analysis and optimization work in a timely manner, increase development cycle and development costs, and CAD engineers cannot build body-in-white models. , to achieve the effect of shortening the development and design cycle, high engineering practical value, and meeting engineering design requirements

Inactive Publication Date: 2017-09-15
上海典凡信息科技有限公司
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Problems solved by technology

In the early conceptual design stage of the body-in-white, due to the lack of input data, CAD engineers cannot build a complete body-in-white model by using the means in the traditional

Method used

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  • Early-stage concept development and topological optimization method for white body of car

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Embodiment

[0014] Examples of the present invention are figure 1 shown. According to the requirements of the early development of the whole vehicle (such as general layout requirements, etc.), the topology optimization software is used to complete the early conceptual topology optimization design and design of the vehicle body frame (load transfer path) for multiple working conditions such as body stiffness, collision and weight reduction. Parsing works. Build the model in the parametric modeling software, import it into the pre-processing software, use the optimization definition panel to define optimization variables, constraints and objectives, and optimize parameters; then submit it to the topology optimization software for structural analysis and optimization; finally use parametric modeling The software can effectively analyze the topology optimization results.

[0015] Determine the load input condition requirements for the overall topology optimization of the vehicle body, incl...

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Abstract

The invention relates to an early-stage concept development and topological optimization method for a white body of a car. The invention brings forward a method for optimization design analysis and parsing of topological space in the early concept of the white body of the car by actively building a model and carrying out topological optimization based on a parameterized model. By actively building a space model and a referential car model, the model is subjected to topological optimization. Then, a topological optimization result is analyzed to the referential car model for verification. After the feasibility of the model is verified, the analysis result is updated to the space model for further optimization in repeated steps till the major force transferring path of the white body of the car is parsed. Through the final force transferring path parsed by the invention, the structural design of the white body of the car is guided so as to meet the requirement for basic performance of the white body of the car.

Description

technical field [0001] The invention relates to an optimization method for early concept development of a body-in-white in the technical field of automobiles, in particular to an optimization method for actively building and modifying a model. Background technique [0002] At present, the automobile industry is developing rapidly, R&D is the core foundation of the automobile industry, and early development is the top priority in the entire R&D process. In the current development process, major vehicle companies are increasing investment in early R&D. Strive to find and solve as many problems as possible in the early stage of R&D, so as to improve the efficiency and quality of the entire R&D process, thereby effectively reducing the cost and risk of the entire R&D process. In the early research and development, the early concept topology space optimization design of the body-in-white is the first step in the early development, which can play an important guiding role in the d...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20Y02T10/40
Inventor 毛雪峰高旭亮任旭奎雷雨田程张军高见昌祝啸
Owner 上海典凡信息科技有限公司
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