Topology optimization of pressure-actuated compliant mechanisms

被引：24

作者：

Panganiban, Henry ^{[1
]}

Jang, Gang-Won ^{[1
]}

Chung, Tae-Jin ^{[1
]}

机构：

[1] Kunsan Natl Univ, Sch Mech & Automot Engn, Kunsan 573701, Jeonbuk, South Korea

来源：

FINITE ELEMENTS IN ANALYSIS AND DESIGN | 2010年 / 46卷 / 03期

关键词：

Topology optimization; Pressure; Compliant mechanism; Incompressible material; Nonconforming; finite element; CONFORMING FINITE-ELEMENTS; CONTINUUM STRUCTURES; PART II; DESIGN;

D O I：

10.1016/j.finel.2009.09.005

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

Topology optimization of a compliant mechanism under pressure input is presented by treating void regions with incompressible hydrostatic fluid. Since an input force is not imposed on one point, existing problem formulations such as attaching a spring on the node under the input force or constraining the input displacement are not valid for the present problem. Instead, to obtain the structural stiffness of a compliant mechanism, the mean compliance by the input pressure is considered. To deal with incompressibility, as an alternative to the mixed displacement-pressure formulation, displacement-based nonconforming finite elements are employed for both two- and three-dimensional problems. the effectiveness of the proposed approach is verified by designing grippers and stretchers. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：238 / 246

页数：9

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