A performance index for topology and shape optimization of plate bending problems with displacement constraints |
| |
Authors: | QQ Liang YM Xie GP Steven |
| |
Affiliation: | (1) School of the Built Environment, Victoria University of Technology, PO Box 14428, Melbourne City MC, VIC 8001, Australia e-mail: qqliang@hotmail.com, AU;(2) School of Engineering, University of Durham, DH1 3LE, UK, GB |
| |
Abstract: | This paper presents a performance index for topology and shape optimization of plate bending problems with displacement constraints.
The performance index is developed based on the scaling design approach. This performance index is used in the Performance-Based
Optimization (PBO) method for plates in bending to keep track of the performance history when inefficient material is gradually
removed from the design and to identify optimal topologies and shapes from the optimization process. Several examples are
provided to illustrate the validity and effectiveness of the proposed performance index for topology and shape optimization
of bending plates with single and multiple displacement constraints under various loading conditions. The topology optimization
and shape optimization are undertaken for the same plate in bending, and the results are evaluated by using the performance
index. The proposed performance index is also employed to compare the efficiency of topologies and shapes produced by different
optimization methods. It is demonstrated that the performance index developed is an effective indicator of material efficiency
for bending plates. From the manufacturing and efficient point of view, the shape optimization technique is recommended for
the optimization of plates in bending.
Received November 27, 1998?Revised version received June 6, 1999 |
| |
Keywords: | : efficiency performance index plate ranking topology and shape optimization |
本文献已被 SpringerLink 等数据库收录! |
|