Evolutionary topology optimization of hinge-free compliant mechanisms

被引：13

作者：

Li, Y. ^{[1
]}

Huang, X. ^{[1
,2
]}

Xie, Y. M. ^{[1
]}

Zhou, S. W. ^{[1
]}

机构：

[1] RMIT Univ, Sch Civil Environm & Chem Engn, Ctr Innovat Struct & Mat, Melbourne, Vic 3001, Australia

[2] Tongji Univ, Dept Bldg Engn, Shanghai 200092, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2014年 / 86卷

关键词：

Topology optimization; Bi-directional evolutionary structural optimization; Compliant mechanisms; Sensitivity analysis; DESIGN; SHAPE;

D O I：

10.1016/j.ijmecsci.2013.10.013

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper develops a bi-directional evolutionary structural optimization (BESO) method for the design of hinge-free compliant mechanisms. A new objective function is proposed to maximize the desirable displacement and preclude the formation of hinges simultaneously. Sensitivity numbers are derived according to the variation of the objective function with respect to the design variables. Based on the resulting sensitivity numbers, the BESO procedure is established by gradually removing and adding elements until an optimal topology is achieved. Several 2D and 3D examples are given to demonstrate the effectiveness of the proposed BESO method for the design of various hinge-free compliant mechanisms. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：69 / 75

页数：7

共 28 条

[1]

[Anonymous], 1999, Level Set Methods and Fast Marching Methods: Evolving Interfaces in Computational Geometry, Fluid Mechanics, Computer Vision, and Materials Science

[2] A simple evolutionary topology optimization procedure for compliant mechanism design [J].

Ansola, Ruben ;

Vegueria, Estrella ;

Canales, Javier ;

Tarrago, Jose A. .

FINITE ELEMENTS IN ANALYSIS AND DESIGN, 2007, 44 (1-2) :53-62

[3] 3D compliant mechanisms synthesis by a finite element addition procedure [J].

Ansola, Ruben ;

Vegueria, Estrella ;

Maturana, Aitor ;

Canales, Javier .

FINITE ELEMENTS IN ANALYSIS AND DESIGN, 2010, 46 (09) :760-769

[4] GENERATING OPTIMAL TOPOLOGIES IN STRUCTURAL DESIGN USING A HOMOGENIZATION METHOD [J].

BENDSOE, MP ;

KIKUCHI, N .

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 1988, 71 (02) :197-224

[5] Stiffness design of geometrically nonlinear structures using topology optimization [J].

Buhl, T ;

Pedersen, CBW ;

Sigmund, O .

STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION, 2000, 19 (02) :93-104

[6] A COMPLIANCE NUMBER CONCEPT FOR COMPLIANT MECHANISMS, AND TYPE SYNTHESIS [J].

HER, I ;

MIDHA, A .

JOURNAL OF MECHANISMS TRANSMISSIONS AND AUTOMATION IN DESIGN-TRANSACTIONS OF THE ASME, 1987, 109 (03) :348-355

[7]

Howell L.L., 2001, COMPLIANT MECH

[8] A METHOD FOR THE DESIGN OF COMPLIANT MECHANISMS WITH SMALL-LENGTH FLEXURAL PIVOTS [J].

HOWELL, LL ;

MIDHA, A .

JOURNAL OF MECHANICAL DESIGN, 1994, 116 (01) :280-290

[9] A loop-closure theory for the analysis and synthesis of compliant mechanisms [J].

Howell, LL ;

Midha, A .

JOURNAL OF MECHANICAL DESIGN, 1996, 118 (01) :121-125

[10] Bi-directional evolutionary topology optimization of continuum structures with one or multiple materials [J].

Huang, X. ;

Xie, Y. M. .

COMPUTATIONAL MECHANICS, 2009, 43 (03) :393-401

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