Structural shape optimization for the torsion problem using direct integration and B-splines

1993 ◽  
Vol 107 (1-2) ◽  
pp. 251-268 ◽  
Author(s):  
Uwe Schramm ◽  
Walter D. Pilkey
Keyword(s):  
Shape Optimization ◽  
Direct Integration ◽  
Torsion Problem ◽  
Structural Shape ◽  
B Splines ◽  
Structural Shape Optimization

Evolutionary Structural Shape Optimization Based on Adaptive FEM and Boundary Representation of B-Spline

2012 ◽  
Vol 562-564 ◽  
pp. 1575-1582
Author(s):  
Sheng Li Gu ◽  
Fu Ming Wang
Keyword(s):  
Shape Optimization ◽  
Boundary Representation ◽  
Structural Shape ◽  
B Spline ◽  
B Splines ◽  
Structural Shape Optimization ◽  
Evolutionary Structural Optimization ◽  
Design Variables ◽  
Adaptive Fem ◽  
Element Error

This paper presents a structural shape optimization algorithm based on the evolutionary structural optimization (ESO) method in conjunction with element error estimate and adaptive FEM. B-splines are used to describe the boundary of the design domain; the shape of these B-splines is governed by a set of master nodes which can be taken as the design variables. The optimal shape of the design boundary with constant stress is achieved iteratively by the movement and update of the position of the master nodes based on nodal stress leveling. The result quality, in terms of accuracy and efficiency, is tested and discussed with an analytical solution.

Structural Shape Optimization Wth Error Control

1994 ◽  
Author(s):  
Pierre Duysinx ◽  
WeiHong Zhang ◽  
HaiGuang Zhong ◽  
Pierre Beckers ◽  
Claude Fleury
Keyword(s):  
Shape Optimization ◽  
Computer Aided Design ◽  
Adaptive Mesh Refinement ◽  
Error Control ◽  
Optimization Procedure ◽  
Adaptive Mesh ◽  
Structural Shape ◽  
Structural Shape Optimization ◽  
Design Variables ◽  
Recent Developments

Abstract A robust and automatic shape optimization procedure is presented in this paper, which incorporates recent developments in the field of computer-aided design (CAD) of mechanical structures, such as geometric modelling, automatic selection of independent design variables, sensitivity analysis using reliable mesh perturbation schemes, error estimation and adaptive mesh refinement. A numerical example is given to show the efficiency of the procedure.

Structural Shape Optimization with MSC/NASTRAN

1990 ◽  
Author(s):  
SRINIVAS KODIYALAM ◽  
GARRET VANDERPLAATS ◽  
HIROKAZU MIURA ◽  
GOPAL NAGENDRA ◽  
DAVID WALLERSTEIN
Keyword(s):  
Shape Optimization ◽  
Structural Shape ◽  
Structural Shape Optimization
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