Design of a Folded Leaf Spring with high support stiffness at large displacements using the Inverse Finite Element Method

J. Rommers; J. L. Herder

doi:10.1007/978-3-030-20131-9_209

Design of a Folded Leaf Spring with high support stiffness at large displacements using the Inverse Finite Element Method

^*Corresponding author for this work

Mechatronic Systems Design

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

3 Citations (Scopus)

Abstract

Compliant (flexure) elements provide highly precise motion guiding because they do not suffer from friction or backlash. However, their support stiffness drops dramatically when they are actuated from their home position. In this paper, we show that the existing Inverse Finite Element (IFE) method can be used to efficiently design flexure elements such that they have a high support stiffness in their actuated state. A folded leaf spring element was redesigned using an IFE code written in Matlab™. The design was validated using the commercial Finite Element software package Ansys™, showing the desired high support stiffness in the actuated state. The proposed method could aid in the design of more compact flexure mechanisms with a larger useful range of motion.

Original language	English
Title of host publication	Advances in Mechanisms and Machine Science
Subtitle of host publication	Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science
Editors	Tadeusz Uhl
Place of Publication	Cham, Switzerland
Publisher	Springer
Pages	2109-2118
ISBN (Electronic)	978-3-030-20131-9
ISBN (Print)	978-3-030-20130-2
DOIs	https://doi.org/10.1007/978-3-030-20131-9_209
Publication status	Published - 2019
Event	15th IFToMM World Congress on Mechanism and Machine Science - Krakow, Poland Duration: 30 Jun 2019 → 4 Jul 2019 Conference number: 15th

Publication series

Name	Mechanisms and Machine Science
Volume	73
ISSN (Print)	2211-0984
ISSN (Electronic)	2211-0992

Conference

Conference	15th IFToMM World Congress on Mechanism and Machine Science
Abbreviated title	IFToMM
Country/Territory	Poland
City	Krakow
Period	30/06/19 → 4/07/19

Keywords

Compliant mechanisms
Flexures
Inverse Finite Elements
Precision
Support stiffness

Access to Document

10.1007/978-3-030-20131-9_209

Cite this

Rommers, J., & Herder, J. L. (2019). Design of a Folded Leaf Spring with high support stiffness at large displacements using the Inverse Finite Element Method. In T. Uhl (Ed.), Advances in Mechanisms and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science (pp. 2109-2118). (Mechanisms and Machine Science; Vol. 73). Springer. https://doi.org/10.1007/978-3-030-20131-9_209

Rommers, J. ; Herder, J. L. / Design of a Folded Leaf Spring with high support stiffness at large displacements using the Inverse Finite Element Method. Advances in Mechanisms and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science. editor / Tadeusz Uhl. Cham, Switzerland : Springer, 2019. pp. 2109-2118 (Mechanisms and Machine Science).

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Rommers, J & Herder, JL 2019, Design of a Folded Leaf Spring with high support stiffness at large displacements using the Inverse Finite Element Method. in T Uhl (ed.), Advances in Mechanisms and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science. Mechanisms and Machine Science, vol. 73, Springer, Cham, Switzerland, pp. 2109-2118, 15th IFToMM World Congress on Mechanism and Machine Science
, Krakow, Poland, 30/06/19. https://doi.org/10.1007/978-3-030-20131-9_209

Design of a Folded Leaf Spring with high support stiffness at large displacements using the Inverse Finite Element Method. / Rommers, J.; Herder, J. L.
Advances in Mechanisms and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science. ed. / Tadeusz Uhl. Cham, Switzerland: Springer, 2019. p. 2109-2118 (Mechanisms and Machine Science; Vol. 73).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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N2 - Compliant (flexure) elements provide highly precise motion guiding because they do not suffer from friction or backlash. However, their support stiffness drops dramatically when they are actuated from their home position. In this paper, we show that the existing Inverse Finite Element (IFE) method can be used to efficiently design flexure elements such that they have a high support stiffness in their actuated state. A folded leaf spring element was redesigned using an IFE code written in Matlab™. The design was validated using the commercial Finite Element software package Ansys™, showing the desired high support stiffness in the actuated state. The proposed method could aid in the design of more compact flexure mechanisms with a larger useful range of motion.

AB - Compliant (flexure) elements provide highly precise motion guiding because they do not suffer from friction or backlash. However, their support stiffness drops dramatically when they are actuated from their home position. In this paper, we show that the existing Inverse Finite Element (IFE) method can be used to efficiently design flexure elements such that they have a high support stiffness in their actuated state. A folded leaf spring element was redesigned using an IFE code written in Matlab™. The design was validated using the commercial Finite Element software package Ansys™, showing the desired high support stiffness in the actuated state. The proposed method could aid in the design of more compact flexure mechanisms with a larger useful range of motion.

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Rommers J, Herder JL. Design of a Folded Leaf Spring with high support stiffness at large displacements using the Inverse Finite Element Method. In Uhl T, editor, Advances in Mechanisms and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science. Cham, Switzerland: Springer. 2019. p. 2109-2118. (Mechanisms and Machine Science). doi: 10.1007/978-3-030-20131-9_209

Design of a Folded Leaf Spring with high support stiffness at large displacements using the Inverse Finite Element Method

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