DocumentCode :
2823983
Title :
Topology Optimization of Thermal Structure Based Bi-directional Interpolation Model
Author :
Li, Jiachun ; Yang, Xudong ; He, Feng
Author_Institution :
Coll. of Mech. Eng., Guizhou Univ., Guiyang, China
Volume :
2
fYear :
2009
fDate :
24-26 April 2009
Firstpage :
887
Lastpage :
890
Abstract :
Aim at the unilateral penalty for treating intermediate density elements in traditional topology optimization, a bi-directional interpolation model (BDIM) is developed to treat intermediate density elements during the topology optimization process. By introducing a threshold, the BDIM model can rationally treat intermediate density elements through penalizing and promoting them toward void and solid elements bilaterally. The mathematical model based BDIM is established for optimizing heat conduction problems and the optimization criteria is derived according to gradient projection method. Corresponding numerical examples are presented to demonstrate the validity of this proposed approach, with the global optimizing results based BDIM model laying a reliable foundation for the subsequent shape and size optimizations in thermal engineering design.
Keywords :
design engineering; gradient methods; heat conduction; interpolation; thermal engineering; BDIM model; bidirectional interpolation model; gradient projection method; heat conduction problem; intermediate density element; shape optimization; size optimization; solid element; thermal engineering design; thermal structure topology optimization; void element; Bidirectional control; Design optimization; Interpolation; Mathematical model; Optimization methods; Reliability engineering; Shape; Solid modeling; Thermal engineering; Topology; BDIM; Heat conduction; Topology optimization; gradient projection method;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computational Sciences and Optimization, 2009. CSO 2009. International Joint Conference on
Conference_Location :
Sanya, Hainan
Print_ISBN :
978-0-7695-3605-7
Type :
conf
DOI :
10.1109/CSO.2009.214
Filename :
5194086
Link To Document :
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