Title: New applications of topology optimisation in automotive industry

Authors: R.J. Yang, Ching-Hung Chuang, Xiangdong Che, Ciro Soto

Addresses: MD 2115, P.O. Box 2053, Ford Motor Company, Dearborn, Michigan 48121, USA. MD 2115, P.O. Box 2053, Ford Motor Company, Dearborn, Michigan 48121, USA. MD 2115, P.O. Box 2053, Ford Motor Company, Dearborn, Michigan 48121, USA. MD 2115, P.O. Box 2053, Ford Motor Company, Dearborn, Michigan 48121, USA

Abstract: Topology optimisation is used for obtaining the best layout of vehicle structural components to achieve predetermined performance goals. In this research, the structural topology optimisation based on density formulation is employed. The topology design problem is formulated as a general optimisation problem and is solved by mathematical programming methods so that the objective and the constraint functions can be any structural performance measure. Design variables for this formulation parameterise the material of each element. NASTRAN-based finite element codes are employed for the response analyses. Traditionally, the topology optimisation is used in body and chassis structures for determining optimal structural layouts. In this research, new applications including weight reduction, manufacturing process selection, weld and bead pattern designs for three-dimensional automotive examples are presented and discussed.

Keywords: topology optimisation; density method; bead pattern; weld pattern; adhesive pattern automotive applications; weight reduction; commercial finite element codes.

DOI: 10.1504/IJVD.2000.001878

International Journal of Vehicle Design, 2000 Vol.23 No.1/2, pp.1-15

Published online: 18 Aug 2003 *

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