A COMPUTATIONAL-PROCEDURE FOR PART DESIGN

被引：38

作者：

ANAGNOSTOU, G ^{[1
]}

RONQUIST, EM ^{[1
]}

PATERA, AT ^{[1
]}

机构：

[1] NEKTON RES CORP,CAMBRIDGE,MA 02139

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1992年 / 97卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0045-7825(92)90106-T

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose a combinatorial optimization procedure for part design which transforms the typically decoupled and serial processes of conception, geometry and mesh generation, analysis, and optimization into a unified concurrent framework founded upon a single data structure. The method proceeds by: construction of a cost functional comprising materials, manufacturing, and performance objectives and constraints; representation of R(d) by a lattice of N(d) binary indicator 'particles' and associated 'elements'; description of the geometric attributes (volume, surface area, smoothness and connectedness) and physical behavior (structural, thermal and fluid) of candidate parts by particle-based pseudo-Boolean functions and element-based partial-differential-equation solutions, respectively; approximate global minimization of the non-convex cost functional with respect to non-topology-preserving geometric variations by the method of simulated annealing; convergence as N --> infinity. Several simple structural and heat transfer examples are described.

引用

页码：33 / 48

页数：16

共 47 条

[1] ARCHITECTURE WITHOUT NUMBERS - CAAD BASED ON A 3D MODELING SYSTEM [J].