Multibody modelling and optimization of a curved hinge flexure

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Abstract

A flexure which retains its support stiffness characteristics for large deflections, is optimized with respect to maximum allowable stress, low actuation stiffness and high support stiffnesses. Such an optimization requires an efficient model which accurately describes the stiffness characteristics and stress distribution of flexures. For this purpose a multibody modelling approach based on a non-linear finite element description is investigated and extended to include the computation of the stress distribution in the deformed configuration. It is shown that the accuracy of the maximum occurring stress is comparable with those obtained from a classical non-linear finite element analysis. An optimized shape of the flexure is found and for deflection angles larger than 7.4�, it is preferable over a single leaf-spring flexure.
Original languageUndefined
Title of host publicationProceedings of The 1st Joint International Conference on Multibody System Dynamics
EditorsAki Mikkola, Werner Schiehlen
Place of PublicationLappeenranta, Finland
PublisherLappeenranta University of Technology
Pages1-10
Number of pages10
ISBN (Print)978-952-214-778-3
Publication statusPublished - 25 May 2010

Publication series

Name
PublisherLappeenranta University of Technology

Keywords

  • METIS-267215
  • IR-89565

Cite this

Boer, S., Aarts, R. G. K. M., Brouwer, D. M., & Jonker, J. B. (2010). Multibody modelling and optimization of a curved hinge flexure. In A. Mikkola, & W. Schiehlen (Eds.), Proceedings of The 1st Joint International Conference on Multibody System Dynamics (pp. 1-10). Lappeenranta, Finland: Lappeenranta University of Technology.
Boer, Steven ; Aarts, Ronald G.K.M. ; Brouwer, Dannis Michel ; Jonker, Jan B. / Multibody modelling and optimization of a curved hinge flexure. Proceedings of The 1st Joint International Conference on Multibody System Dynamics. editor / Aki Mikkola ; Werner Schiehlen. Lappeenranta, Finland : Lappeenranta University of Technology, 2010. pp. 1-10
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title = "Multibody modelling and optimization of a curved hinge flexure",
abstract = "A flexure which retains its support stiffness characteristics for large deflections, is optimized with respect to maximum allowable stress, low actuation stiffness and high support stiffnesses. Such an optimization requires an efficient model which accurately describes the stiffness characteristics and stress distribution of flexures. For this purpose a multibody modelling approach based on a non-linear finite element description is investigated and extended to include the computation of the stress distribution in the deformed configuration. It is shown that the accuracy of the maximum occurring stress is comparable with those obtained from a classical non-linear finite element analysis. An optimized shape of the flexure is found and for deflection angles larger than 7.4�, it is preferable over a single leaf-spring flexure.",
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Boer, S, Aarts, RGKM, Brouwer, DM & Jonker, JB 2010, Multibody modelling and optimization of a curved hinge flexure. in A Mikkola & W Schiehlen (eds), Proceedings of The 1st Joint International Conference on Multibody System Dynamics. Lappeenranta University of Technology, Lappeenranta, Finland, pp. 1-10.

Multibody modelling and optimization of a curved hinge flexure. / Boer, Steven; Aarts, Ronald G.K.M.; Brouwer, Dannis Michel; Jonker, Jan B.

Proceedings of The 1st Joint International Conference on Multibody System Dynamics. ed. / Aki Mikkola; Werner Schiehlen. Lappeenranta, Finland : Lappeenranta University of Technology, 2010. p. 1-10.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

TY - GEN

T1 - Multibody modelling and optimization of a curved hinge flexure

AU - Boer, Steven

AU - Aarts, Ronald G.K.M.

AU - Brouwer, Dannis Michel

AU - Jonker, Jan B.

PY - 2010/5/25

Y1 - 2010/5/25

N2 - A flexure which retains its support stiffness characteristics for large deflections, is optimized with respect to maximum allowable stress, low actuation stiffness and high support stiffnesses. Such an optimization requires an efficient model which accurately describes the stiffness characteristics and stress distribution of flexures. For this purpose a multibody modelling approach based on a non-linear finite element description is investigated and extended to include the computation of the stress distribution in the deformed configuration. It is shown that the accuracy of the maximum occurring stress is comparable with those obtained from a classical non-linear finite element analysis. An optimized shape of the flexure is found and for deflection angles larger than 7.4�, it is preferable over a single leaf-spring flexure.

AB - A flexure which retains its support stiffness characteristics for large deflections, is optimized with respect to maximum allowable stress, low actuation stiffness and high support stiffnesses. Such an optimization requires an efficient model which accurately describes the stiffness characteristics and stress distribution of flexures. For this purpose a multibody modelling approach based on a non-linear finite element description is investigated and extended to include the computation of the stress distribution in the deformed configuration. It is shown that the accuracy of the maximum occurring stress is comparable with those obtained from a classical non-linear finite element analysis. An optimized shape of the flexure is found and for deflection angles larger than 7.4�, it is preferable over a single leaf-spring flexure.

KW - METIS-267215

KW - IR-89565

M3 - Conference contribution

SN - 978-952-214-778-3

SP - 1

EP - 10

BT - Proceedings of The 1st Joint International Conference on Multibody System Dynamics

A2 - Mikkola, Aki

A2 - Schiehlen, Werner

PB - Lappeenranta University of Technology

CY - Lappeenranta, Finland

ER -

Boer S, Aarts RGKM, Brouwer DM, Jonker JB. Multibody modelling and optimization of a curved hinge flexure. In Mikkola A, Schiehlen W, editors, Proceedings of The 1st Joint International Conference on Multibody System Dynamics. Lappeenranta, Finland: Lappeenranta University of Technology. 2010. p. 1-10