Stiffness-Oriented Structure Topology Optimization for Hinge-Free Compliant Mechanisms Design

This paper presents a stiffness-oriented structure topology optimization (TO) method for the design of a continuous, hinge-free compliant mechanism (CM). A synthesis formulation is developed to maximize the mechanism’s mutual potential energy (MPE) to achieve required structure flexibility while max...

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Autores principales:	Jincheng Guo, Huaping Tang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	stiffness-oriented topology optimization compliant mechanisms hinge-free Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/1c2f8645fbcc4c248602d10c4264f68a
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spelling	oai:doaj.org-article:1c2f8645fbcc4c248602d10c4264f68a2021-11-25T16:38:59ZStiffness-Oriented Structure Topology Optimization for Hinge-Free Compliant Mechanisms Design10.3390/app1122108312076-3417https://doaj.org/article/1c2f8645fbcc4c248602d10c4264f68a2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10831https://doaj.org/toc/2076-3417This paper presents a stiffness-oriented structure topology optimization (TO) method for the design of a continuous, hinge-free compliant mechanism (CM). A synthesis formulation is developed to maximize the mechanism’s mutual potential energy (MPE) to achieve required structure flexibility while maximizing the desired stiffness to withstand the loads. Different from the general approach of maximizing the overall stiffness of the structure, the proposed approach can contribute to guiding the optimization process focus on the desired stiffness in a specified direction by weighting the related eigen-frequency of the corresponding eigenmode. The benefit from this is that we can make full use of the material in micro-level compliant mechanism designs. The single-node connected hinge issue which often happened in optimized design can be precluded by introducing the eigen-frequency constraint into this synthesis formulation. Several obtained hinge-free designs illustrate the validity and robustness of the presented method and offer an alternative method for hinge-free compliant mechanism designs.Jincheng GuoHuaping TangMDPI AGarticlestiffness-orientedtopology optimizationcompliant mechanismshinge-freeTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10831, p 10831 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	stiffness-oriented topology optimization compliant mechanisms hinge-free Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	stiffness-oriented topology optimization compliant mechanisms hinge-free Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Jincheng Guo Huaping Tang Stiffness-Oriented Structure Topology Optimization for Hinge-Free Compliant Mechanisms Design
description	This paper presents a stiffness-oriented structure topology optimization (TO) method for the design of a continuous, hinge-free compliant mechanism (CM). A synthesis formulation is developed to maximize the mechanism’s mutual potential energy (MPE) to achieve required structure flexibility while maximizing the desired stiffness to withstand the loads. Different from the general approach of maximizing the overall stiffness of the structure, the proposed approach can contribute to guiding the optimization process focus on the desired stiffness in a specified direction by weighting the related eigen-frequency of the corresponding eigenmode. The benefit from this is that we can make full use of the material in micro-level compliant mechanism designs. The single-node connected hinge issue which often happened in optimized design can be precluded by introducing the eigen-frequency constraint into this synthesis formulation. Several obtained hinge-free designs illustrate the validity and robustness of the presented method and offer an alternative method for hinge-free compliant mechanism designs.
format	article
author	Jincheng Guo Huaping Tang
author_facet	Jincheng Guo Huaping Tang
author_sort	Jincheng Guo
title	Stiffness-Oriented Structure Topology Optimization for Hinge-Free Compliant Mechanisms Design
title_short	Stiffness-Oriented Structure Topology Optimization for Hinge-Free Compliant Mechanisms Design
title_full	Stiffness-Oriented Structure Topology Optimization for Hinge-Free Compliant Mechanisms Design
title_fullStr	Stiffness-Oriented Structure Topology Optimization for Hinge-Free Compliant Mechanisms Design
title_full_unstemmed	Stiffness-Oriented Structure Topology Optimization for Hinge-Free Compliant Mechanisms Design
title_sort	stiffness-oriented structure topology optimization for hinge-free compliant mechanisms design
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1c2f8645fbcc4c248602d10c4264f68a
work_keys_str_mv	AT jinchengguo stiffnessorientedstructuretopologyoptimizationforhingefreecompliantmechanismsdesign AT huapingtang stiffnessorientedstructuretopologyoptimizationforhingefreecompliantmechanismsdesign
_version_	1718413064950251520

Stiffness-Oriented Structure Topology Optimization for Hinge-Free Compliant Mechanisms Design

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