Affiliation:
1. Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104-6315
Abstract
Optimal design methods that use continuum mechanics models are capable of generating suitable topology, shape, and dimensions of compliant mechanisms for desired specifications. Synthesis procedures that use linear elastic finite element models are not quantitatively accurate for large displacement situations. Also, design specifications involving nonlinear force-deflection characteristics and generation of a curved path for the output port cannot be realized with linear models. In this paper, the synthesis of compliant mechanisms is performed using geometrically nonlinear finite element models that appropriately account for large displacements. Frame elements are chosen because of ease of implementation of the general approach and their ability to capture bending deformations. A method for nonlinear design sensitivity analysis is described. Examples are included to illustrate the usefulness of the synthesis method.
Subject
Computer Graphics and Computer-Aided Design,Computer Science Applications,Mechanical Engineering,Mechanics of Materials
Reference25 articles.
1. Howell, L., and Midha, A., 1996, “A Loop-Closure Theory for the Analysis and Synthesis of Compliant Mechanisms,” ASME J. Mech. Des., 118, No. 1, pp. 121–125.
2. Saxena, A., and Kramer, S. N., 1998, “A Simple and Accurate Method for Determining Large Deflections in Compliant Mechanisms Subjected to End Forces and Moments,” ASME J. Mech. Des., 120, No. 3, pp. 392–400.
3. Ananthasuresh, G. K., Kota, S., and Kikuchi, N., 1994, “Strategies for Systematic Synthesis of Compliant MEMS,” Proc. of the 1994 ASME Winter Annual Meeting, Nov. 1994, Chicago, IL, pp. 677–686.
4. Frecker, M. I., Ananthasuresh, G. K., Nishiwaki, N., Kikuchi, N., and Kota, S., 1997, “Topological Synthesis of Compliant Mechanisms using Multi-Criteria Optimization,” ASME J. Mech. Des., 119 pp. 238–245.
5. Sigmund, O. , 1997, “On the Design of Compliant Mechanisms Using Topology Optimization,” Mech. Struct. Mach., 25, No. 4, pp. 495–526.
Cited by
112 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献