Common Mesh Approach on Vehicle CAE Analysis

Paper #:
  • 2017-01-0375

Published:
  • 2017-03-28
Abstract:
Computer Aided Engineering (CAE) has become an integral and essential part of vehicle development process with stringent safety and CAFE (Corporate Average Fuel Economy), performance and reliability requirements as well as reduced vehicle development time. Exponential increasing in CPU speed with advancement in the software technology like parallel computing, CAE process time has come down substantially over the years. However the pre-processing, in particular CAE model preparation has not advanced correspondingly and remains a bottleneck. Most of the time in model preparation is spent on meshing. Any reduction in mesh preparation would have substantial cycle time reduction in the CAE process. While Durability, NVH, and Crashworthiness are governed by same structural engineering principles, prevalent practice is to use different models for each attribute. Since all start with the same CAD data using common mesh for all these three attributes would reduce the resource requirements. Using common mesh, in addition to providing resource efficiency, offers consistent base across attributes to enable effective multi-disciplinary optimization and to improve mesh quality. In this paper we discuss our process and experience in commonizing the meshing across Durability, NVH, and Crashworthiness attributes.
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