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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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Journal ArticleDOI

Topological Synthesis of Compliant Mechanisms Using Nonlinear Beam Elements

TL;DR: Joo et al. as discussed by the authors presented a methodology for generating topology of complaint mechanisms using nonlinear deformation theory, based on a multicriteria objective function as a ratio of geometrical advantage to strain energy is employed to capture the conflicting functional requirements that are inherent in compliant mechanisms design.
Journal ArticleDOI

Design of Multi-phase Piezoelectric Actuators

TL;DR: In this article, a multi-objective topology optimization method is proposed for systematic design of multi-phase piezoelectric actuators, where the actuator under consideration is composed of a compliant host structure equipped with PAs.
Journal ArticleDOI

A new multi-objective programming scheme for topology optimization of compliant mechanisms

TL;DR: The main findings in this study include distinct advantages of the SIMP-PP method in various aspects such as computation efficiency, adaptability in convex and non-convex multi-criteria environment, and flexibility in problem formulation.
Proceedings ArticleDOI

Contact Aided Compliant Mechanisms: Concept and Preliminaries

TL;DR: In this article, contact aided compliant mechanisms (CCMs) are designed to generate non-smooth output port trajectories with a single continuous input, and the use of optimization as a tool for systematic synthesis of CCMs is also explored.
Journal ArticleDOI

Articulated mechanism design with a degree of freedom constraint

TL;DR: In this article, a truss-based ground-structure representation is used for the design of an articulated mechanism using a relaxed formulation of an original integer problem and also involves developments directed at handling the redundancy inherent in the ground structure representation.
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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