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Elasto-dynamic analysis of a novel 2-DoF rotational parallel mechanism with an articulated travelling platform
Tianjin Univeristy.
Tianjin University.
Key Laboratory of Mechanism Theory and Equipment Design Ministry of Education, Tianjin University, Tianjin, 300072, China.ORCID iD: 0000-0002-6747-8565
2016 (English)In: Meccanica (Milano. Print), ISSN 0025-6455, E-ISSN 1572-9648, Vol. 51, no 7, p. 1547-1557Article in journal (Refereed) Published
Abstract [en]

This paper carries out the elasto-dynamic analysis of a novel 2 degrees-of-freedom (DoF) rotational parallel mechanism (RPM) with an articulated travelling platform by means of kineto-elasto dynamic method. The architecture of the proposed 2-DoF RPM is firstly described, and then its kinematic analysis is carried out by closed-loop vector method. On the basis of finite element analysis, the elasto-dynamic models of movable components are established before assembling to formulate the elasto-dynamic equations of the whole mechanism in the light of deformation compatibility conditions. The free vibration equation is then achieved to evaluate the natural frequency of the novel 2-DoF RPM. Finally, an example is illustrated and the results are verified by finite element software. It shows that the relatively high natural frequencies and good dynamic performance make the novel 2-DoF RPM a promising solution for pose-adjusting module of 5-DoF machine centre.

Place, publisher, year, edition, pages
Springer Netherlands, 2016. Vol. 51, no 7, p. 1547-1557
Keywords [en]
Rotational parallel mechanism, Elasto-dynamics, Finite element analysis, Natural frequency
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-249527DOI: 10.1007/s11012-014-0099-3ISI: 000377380400003Scopus ID: 2-s2.0-84921891110OAI: oai:DiVA.org:kth-249527DiVA, id: diva2:1304599
Note

QC 20190626

Available from: 2019-04-12 Created: 2019-04-12 Last updated: 2019-06-26Bibliographically approved

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CiteExportLink to record
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  • apa
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