Journal ArticleDOI
Topological synthesis of compliant mechanisms using multi-criteria optimization
TLDR
In this paper, a new method for topological synthesis of single-piece compliant mechanisms is presented, using a "design for required deflection" approach, which handles motion and loading requirements simultaneously for a given set of input force and output deflection specifications.Abstract:
Compliant mechanisms are mechanical devices that achieve motion via elastic deformation. A new method for topological synthesis of single-piece compliant mechanisms is presented, using a “design for required deflection” approach. A simple beam example is used to illustrate this concept and to provide the motivation for a new multi-criteria approach for compliant mechanism design. This new approach handles motion and loading requirements simultaneously for a given set of input force and output deflection specifications. Both a truss ground structure and a two-dimensional continuum are used in the implementation which is illustrated with design examples.read more
Citations
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Journal ArticleDOI
Design of distributed compliant micromechanisms with an implicit free boundary representation
TL;DR: In this article, a level set model is developed to implicitly describe the structural boundary by embedding into a scalar function of higher dimension as zero level set, and the compactly supported radial basis function of favorable smoothness and accuracy is used to interpolate the level set function.
Dissertation
An energy efficiency approach for unified topological and dimensional synthesis of compliant mechanisms.
Journal ArticleDOI
Concurrent topology optimization of cellular structures and anisotropic materials
Yifu Lu,Liyong Tong +1 more
TL;DR: The present formulation and algorithm are validated via studying numerical examples of concurrent optimum design of macro and micro topologies and orthotropic material orientations and an extended and fully-coupled moving iso-surface threshold method and algorithm developed for solving the formulated concurrent optimization problem of cellular structures using two-scale physical response functions.
Proceedings ArticleDOI
Multi-Domain Multi-Step Topology Optimization for Vehicle Structure Crashworthiness Design
TL;DR: In this article, a multi-domain and multi-step topology optimization approach is presented to address a wide range of structural design parameters with manufacturability and other application concerns.
References
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Journal ArticleDOI
Generating optimal topologies in structural design using a homogenization method
Martin P. Bendsøe,Noboru Kikuchi +1 more
TL;DR: In this article, the authors present a methodology for optimal shape design based on homogenization, which is related to modern production techniques and consists of computing the optimal distribution in space of an anisotropic material that is constructed by introducing an infimum of periodically distributed small holes in a given homogeneous, i.i.
Book
Elements of Structural Optimization
TL;DR: In this article, the authors present an approach for the optimization of structural components of a ten-bar truss and a twenty-five-bar trestle in the context of structural optimization.
Journal ArticleDOI
Design and fabrication of compliant micromechanisms and structures with negative Poisson's ratio
TL;DR: In this article, a numerical topology optimization method is used to design and fabricate compliant micromechanisms and material structures with negative Poisson's ratio (NPR) using a laser micromachining setup.
Journal ArticleDOI
Topology optimization of compliant mechanisms using the homogenization method
TL;DR: A procedure to obtain a topology of an optimal structure considering flexibility is presented, based on a mutual energy concept for formulation of flexibility and the homogenization method.
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Generating optimal topologies in structural design using a homogenization method
Martin P. Bendsøe,Noboru Kikuchi +1 more