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Method for synthesizing finite element model in vehicle safety cooperative design

A collaborative design and synthesis method technology, applied in computing, special data processing applications, instruments, etc., to achieve the effects of expanding the scope of cooperation, improving analysis efficiency, and speeding up the development cycle

Inactive Publication Date: 2008-01-30
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

Therefore, there is currently no mature design method that can realize the synthesis of the finite element model of the whole vehicle under the condition of transparency of each component model

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  • Method for synthesizing finite element model in vehicle safety cooperative design

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Embodiment Construction

[0029] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0030] The present invention can be implemented and applied to any automobile safety collaborative design system:

[0031] First, the vehicle manufacturer designs all the vehicle finite element model SUB-FE-CAR model files in the local CAD and CAE environment except the components designed by the component manufacturer, and the model contains the experimental environment model. Depending on the type of safety design, the experimental environment includes a frontal collision between a vehicle and a rigid wall or a side collision between a trolley and a vehicle. At the...

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Abstract

A synthetic method of finite element model in an automobile safety collaborative design includes the following steps: first step, three model files are provided by entire car merchants in the collaborative environment: SUB-FE-CAR, SUB-CAD-ENV, SUB-FE-ENV, wherein, SUB-FE-CAR is invisible to parts merchants and parts merchant can get the other two model files and uses the files to design and constructs the parts CAD model and CAE model; second step, the parts merchant divides grid to geometry models according to the SUB-CAD-ENV provided by the entire car merchants and gets finite element model SUB-FE-PAR of the parts; third step, a modeling of the car finite element model and parts element model can be made through passing procedures by the SUB-FE-PAR and SUB-FE-CAR and the finite element model of the entire car G-FE-CAR can be integrated. The present invention is characterized in that a secrecy requirement of the entire car merchants and the parts merchants to model information can be satisfied and the synthesis of the parts model and the entire car model can be realized automatically without manual intervention.

Description

technical field [0001] The invention relates to a design method in the technical field of automobile manufacturing, in particular to a finite element model synthesis method in the collaborative design of automobile safety. Background technique [0002] Today, in the fierce automobile manufacturing field, on the one hand, automobile manufacturers must shorten the cycle of research and development, speed up the speed of product launch, improve product quality, and reduce production costs to meet the ever-changing market; on the other hand, consumers are concerned about the safety of automobiles. , Comfort puts forward higher requirements. The joint development of automobile products between automobile manufacturers and parts suppliers can well solve the above-mentioned problems. Automobile collision safety design is an important content of automobile product design. To assess component quality, components are subjected to crash simulation experiments in the full vehicle envi...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 赵志杰金先龙曹源王建炜
Owner SHANGHAI JIAO TONG UNIV
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