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
Spring-joint method for topology optimization of planar passive compliant mechanisms
TL;DR: In this paper, a serial spring-joint mechanism (SSJM) is proposed to obtain the optimal initial topology of flexure-based compliant mechanisms directly from problem specifications without referencing to the existing mechanism topologies.
The optimisation of hierarchical structures with applications to morphing aircraft
TL;DR: In this paper, a compliant mechanism approach is proposed to morph aircraft wings at the macro length scale and the use of hierarchical designs to construct aircraft wings is discussed. But the focus of the paper is on the structural optimization of the composite lay-up to enhance a structure's anisotropic properties.
Journal ArticleDOI
Optimal design of cellular structures under random fields
Seung-Kyum Choi,Jiten Patel +1 more
TL;DR: In this article, the authors developed a reliability-based synthesis method to design cellular material structures under random fields, which is achieved with the combination of topology optimisation and stochastic local regression by utilizing polynomial chaos expansion and Karhunen-Loeve transform.
Proceedings ArticleDOI
Topology Optimization of a Compliant Gripper Using Hybrid Simulated Annealing and Direct Search
TL;DR: In this paper, a hybrid optimization technique is developed using simulated annealing as a random search method, while the simplex method (Nelder-Mead) is used as a direct search method.
Proceedings ArticleDOI
Integrated design optimization of strain actuated structures for dynamic shape control
E. Forster,E. Livne +1 more
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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