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
Compliant Joint Design Principles for High Compressive Load Situations
TL;DR: In this article, the authors describe two principles, isolation and inversion, that can be successfully applied to many compliant joints to increase their ability to withstand high compressive loads by avoiding buckling-prone loading conditions.
Journal ArticleDOI
Topology optimization of thermally actuated compliant mechanisms considering time-transient effect
TL;DR: In this paper, a topology optimization technique based on boundary heating is proposed to produce localized thermal actuation, using only simple forms of boundary heating, which can be applied to design a novel type of integral attachment mechanisms, which benefits the design for disassembly.
Journal ArticleDOI
Structural topology optimization using a genetic algorithm with a morphological geometric representation scheme
Kang Tai,Shamim Akhtar +1 more
TL;DR: A versatile methodology for solving topology design optimization problems using a genetic algorithm (GA) that works by specifying a skeleton which defines the underlying topology/connectivity of a structural continuum together with segments of material surrounding the skeleton.
Journal ArticleDOI
Use of functional specifications as objective functions in topological optimization of compliant mechanism
Gih Keong Lau,Hejun Du,M.K. Lim +2 more
TL;DR: In this article, an alternative formulation, based on functional specification, is proposed to solve for topology of compliant mechanism, among mechanical advantage, geometrical advantage and work ratio, one of the functional specifications is posed as objective function while displacement constraint and material constraint are imposed.
Journal ArticleDOI
Shape and Size Synthesis of Compliant Mechanisms Using Wide Curve Theory
Hong Zhou,Kwun-Lon Ting +1 more
TL;DR: In this article, a shape and size synthesis method for compliant mechanisms based on free-form wide curve theory is proposed, in which every connection in the topology is represented by a parametric wide curve.
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
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