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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.

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Citations
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Dissertation

Design rules and models for the synthesis and optimization of cylindrical flexures

TL;DR: Culpepper et al. as mentioned in this paper proposed a synthesis approach for cylindrical flexures based on the analysis of element mechanics models to reveal key parameters, understanding of how the key parameters affect the flexure performance, and guidelines as to how to assemble and optimize CF systems.
Posted Content

Topological synthesis of fluidic pressure-actuated robust compliant mechanisms

TL;DR: In this article, a density-based topology optimization approach for synthesizing pressure-actuated robust compliant mechanisms is presented, where the robust or three-field formulation is employed, involving dilated, intermediate and eroded realizations of the design.
Proceedings ArticleDOI

A New Topology Optimization Method for Multi-physics Micro Domains

TL;DR: In this paper, a novel topology optimization scheme is developed for a systematic design of electro-thermo-mechanical devices employing discrete domain with beam elements, where frame ground structure is used for discretization and real coded genetic algorithm is employed to solve the optimization problem.
Posted Content

Mechanics of compliant serial manipulator composed of dual-triangle segments

TL;DR: The results demonstrate that either buckling or quasi-buckling phenomenon may occur under the loading, if the manipulator corresponding initial configuration is straight or non-straight one.
Journal ArticleDOI

Exploring and exploiting path based design optimization of a constant force mechanism

TL;DR: In this article , a low computational cost design strategy that more fully exploits the design space and reduces stress concentrations was proposed to reduce wear and friction while providing precision in control, reduction in impact forces, and quasi zero stiffness.
References
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Journal ArticleDOI

Generating optimal topologies in structural design using a homogenization method

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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