On generating expected kinetostatic nonlinear stiffness characteristics by the kinematic limb-singularity of a crank-slider linkage with springs

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dc.contributor.author Li, Baokun
dc.contributor.author Hao, Guangbo
dc.date.accessioned 2019-10-29T05:54:18Z
dc.date.available 2019-10-29T05:54:18Z
dc.date.issued 2019-06-14
dc.identifier.citation Li, B. and Hao, G., 2019. On Generating Expected Kinetostatic Nonlinear Stiffness Characteristics by the Kinematic Limb-Singularity of a Crank-Slider Linkage with Springs. Chinese Journal of Mechanical Engineering, 32(1), 54 (16 pp.) DOI:10.1186/s10033-019-0369-z en
dc.identifier.volume 32 en
dc.identifier.issued 1 en
dc.identifier.startpage 1 en
dc.identifier.endpage 16 en
dc.identifier.issn 1000-9345
dc.identifier.uri http://hdl.handle.net/10468/8906
dc.identifier.doi 10.1186/s10033-019-0369-z en
dc.description.abstract Being different from avoidance of singularity of closed-loop linkages, this paper employs the kinematic singularity to construct compliant mechanisms with expected nonlinear stiffness characteristics to enrich the methods of compliant mechanisms synthesis. The theory for generating kinetostatic nonlinear stiffness characteristic by the kinematic limb-singularity of a crank-slider linkage is developed. Based on the principle of virtual work, the kinetostatic model of the crank-linkage with springs is established. The influences of spring stiffness on the toque-position angle relation are analyzed. It indicates that corresponding spring stiffness may generate one of four types of nonlinear stiffness characteristics including the bi-stable, local negative-stiffness, zero-stiffness or positive-stiffness when the mechanism works around the kinematic limb-singularity position. Thus the compliant mechanism with an expected stiffness characteristic can be constructed by employing the pseudo rigid-body model of the mechanism whose joints or links are replaced by corresponding flexures. Finally, a tri-symmetrical constant-torque compliant mechanism is fabricated, where the curve of torque-position angle is obtained by an experimental testing. The measurement indicates that the compliant mechanism can generate a nearly constant-torque zone. en
dc.description.sponsorship National Natural Science Foundation of China (Grant No. 51605006); Research Foundation of Key Laboratory of Manufacturing Systems and Advanced Technology of Guangxi Province, China (Grant No. 17-259-05-013K) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Springer Open en
dc.relation.uri https://cjme.springeropen.com/articles/10.1186/s10033-019-0369-z
dc.rights © The Author(s) 2019. 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 Kinematic limb-singularity en
dc.subject Crank-slider linkage en
dc.subject Kinetostatic nonlinear stiffness en
dc.title On generating expected kinetostatic nonlinear stiffness characteristics by the kinematic limb-singularity of a crank-slider linkage with springs en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Guangbo Hao, School of 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.contributor.funder Research Foundation of Key Laboratory of Manufacturing Systems and Advanced Technology of Guangxi Province, China en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Chinese Journal of Mechanical Engineering (English Edition) en
dc.internal.IRISemailaddress g.hao@ucc.ie en
dc.identifier.articleid 54 en
dc.identifier.eissn 2192-8258


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© The Author(s) 2019. 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) 2019. 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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