Flexure mechanism with increased dynamic performance by overconstraining using viscoelastic material

Sven Klein Avink, Marijn Nijenhuis*, Wilma Dierkes, Jacques Noordermeer, Dannis Brouwer

*Corresponding author for this work

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Abstract

Flexure mechanisms are commonly designed to be exactly constrained to favour determinism, though at the expense of limitations on parasitic eigenfrequencies and support stiffness. This paper presents the use of viscoelastic material for providing additional stiffness without the indeterminism commonly associated with overconstraining. It is demonstrated experimentally that a custom synthesised elastomer compound can compensate for unintended misalignments without internal stress buildup, while improving the dynamic performance in terms of the first parasitic eigenfrequency. The measurements are corroborated by a nonlinear flexible multibody analysis.

Original languageEnglish
Title of host publicationEuropean Society for Precision Engineering and Nanotechnology, Conference Proceedings - 19th International Conference and Exhibition, EUSPEN 2019
EditorsC. Nisbet, Richard K. Leach, D. Billington, D. Phillips
PublisherEUSPEN
Pages82-85
Number of pages4
ISBN (Electronic)9780995775145
Publication statusPublished - Jun 2019
Event19th EUSPEN International Conference & Exhibition, ICE 2019 - Euskalduna, Bilbao, Spain
Duration: 3 Jun 20197 Jun 2019
Conference number: 19
https://www.euspen.eu/events/19th-ice-bilbao/

Conference

Conference19th EUSPEN International Conference & Exhibition, ICE 2019
Abbreviated titleICE 2019
CountrySpain
CityBilbao
Period3/06/197/06/19
Internet address

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Keywords

  • Exactly constrained
  • Misalignment
  • Overconstrained
  • Parallel leaf spring mechanism
  • Viscoelasticity

Cite this

Klein Avink, S., Nijenhuis, M., Dierkes, W., Noordermeer, J., & Brouwer, D. (2019). Flexure mechanism with increased dynamic performance by overconstraining using viscoelastic material. In C. Nisbet, R. K. Leach, D. Billington, & D. Phillips (Eds.), European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 19th International Conference and Exhibition, EUSPEN 2019 (pp. 82-85). EUSPEN.