Effect of degree-of-symmetry on kinetostatic characteristics of flexure mechanisms: A comparative case study

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dc.contributor.author He, Xiao-Bing
dc.contributor.author Yu, Jing-Jun
dc.contributor.author Zhang, Wan-Wan
dc.contributor.author Hao, Guangbo
dc.date.accessioned 2019-10-28T07:20:04Z
dc.date.available 2019-10-28T07:20:04Z
dc.date.issued 2018-04-25
dc.identifier.citation He, X.B., Yu, J.J., Zhang, W.W. and Hao, G.B., 2018. Effect of Degree-of-Symmetry on Kinetostatic Characteristics of Flexure Mechanisms: A Comparative Case Study. Chinese Journal of Mechanical Engineering, 31, 29, (29 pp.). DOI:10.1186/s10033-018-0235-4 en
dc.identifier.volume 31 en
dc.identifier.issued 1 en
dc.identifier.startpage 1 en
dc.identifier.endpage 12 en
dc.identifier.issn 1000-9345
dc.identifier.uri http://hdl.handle.net/10468/8895
dc.identifier.doi 10.1186/s10033-018-0235-4 en
dc.description.abstract The current research of kinetostatic characteristics in flexure mechanisms mainly focus on the improvement of accuracy. To reduce or eliminate the parasitic motion is considered as an approach by using the common knowledge of symmetry. However, there is no study on designing the flexure mechanisms with symmetrical features as many as possible for better kinetostatic performance, when considering the resulting cost by the symmetry. In this paper, the concept of degree of symmetry (DoS) is proposed for the first time, which is committed to symmetry design in the phase of conceptual design. A class of flexure mechanisms with 0-DoS, 1-DoS, 2-DoS and 3-DoS are synthesized respectively based on the Freedom and Constraint Topology method. Their overall compliance matrices in an analytical form formulated within the framework of the screw theory are used to analyze and compare the effect of different number of DoS on the kinetostatic characteristics for flexure mechanisms. The finite element analysis (FEA) simulations are implemented to verify the analytical results. These results show that the higher the DoS is, the smaller the parasitic motion error will be. The flexure model with 3-DoS is optimized according to the overall compliance matrix and then tested by using the FEA simulation. The testing result shows that with the best combination parameters, the parasitic motion error for 3-DoS mechanism is almost eliminated. This research introduces a design principle which can alleviate the unwanted parasitic motion for better accuracy. en
dc.description.sponsorship National Natural Science Foundation of China (Grant No. 51575017) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Chinese Mechanical Engineering Society en
dc.relation.uri https://cjme.springeropen.com/articles/10.1186/s10033-018-0235-4
dc.rights © The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. en
dc.rights.uri https://creativecommons.org/licenses/by/4.0/ en
dc.subject Flexure mechanism en
dc.subject Symmetry en
dc.subject Kinetostatic characteristics en
dc.subject FEA simulation en
dc.title Effect of degree-of-symmetry on kinetostatic characteristics of flexure mechanisms: A comparative case study en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Guangbo Hao, School of Engineering-Electrical and Electronic Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: g.hao@ucc.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.contributor.funder National Natural Science Foundation of China en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Chinese Journal of Mechanical Engineering en
dc.internal.IRISemailaddress g.hao@ucc.ie en
dc.identifier.articleid 29 en
dc.identifier.eissn 2192-8258


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© The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Except where otherwise noted, this item's license is described as © The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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