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Hu Ping
Gong Kejia
Bao Yidong
State Key
Laboratory of Automobile
Dynamic Simulation,
Jilin University,
Changchun 130025, China |
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PHYSICAL VALUE
MAPPING ALGORITHM OF
MESH IN FINE CAE ANALYSIS OF AUTOMOBILE BODY STRUCTURE*
Abstract:
A physical value mapping (PVM) algorithm based on finite element mesh from the stamped part in stamping process to the product is presented. In order to improve the efficiency of the PVM algorithm, a search way from the mesh of the product to the mesh of the stamped part will be adopted. At the same time, the search process is divided into two steps: entire search (ES) and local search (LS), which improve the searching efficiency. The searching area is enlarged to avoid missing projection elements in ES process. An arc-length method is introduced in LS process. The validity is confirmed by the results of the complex industry-forming product.
Key words:
Fine CAE analysis of auto body structure Finite
element mesh Arc method Physical value mapping
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