Improving Support Stiffness of Flexure Mechanisms by Statically Balancing

Jan de Jong; Sebastiaan Theans; Lars Epping; Dannis Michel Brouwer

Improving Support Stiffness of Flexure Mechanisms by Statically Balancing

Jan de Jong, Sebastiaan Theans, Lars Epping, Dannis Michel Brouwer

Applied Mechanics

Research output: Contribution to conference › Paper › peer-review

1 Citation (Scopus)

394 Downloads (Pure)

Abstract

Static balance eliminates the actuation stiffness of flexure mechanisms and thereby reduces the motor effort and unwanted heat production. However, this typically comes at the cost of lowered support stiffness and stroke. This paper aims to show that the maximum stresses in the flexures may be reduced as well by static balance. Therefore, thicker flexures can be used, paradoxically leading to an increased support stiffness by static balance. In a case study of a parallel flexure mechanism we shown an increased support stiffness of 11%, while the measured actuation stiffness reduces by more than 95%. This shows that a tradeoff between actuation and support stiffness is avoidable.

Original language	English
Pages	45-48
Number of pages	4
Publication status	Published - 3 Nov 2021
Event	36th Annual Meeting of the American Society for Precision Engineering, ASPE 2021 - Renaissance Minneapolis Hotel, Minneapolis, United States Duration: 1 Nov 2021 → 5 Nov 2021 https://aspe.net/36th-annual-meeting/

Conference

Conference	36th Annual Meeting of the American Society for Precision Engineering, ASPE 2021
Country/Territory	United States
City	Minneapolis
Period	1/11/21 → 5/11/21
Internet address	https://aspe.net/36th-annual-meeting/

Keywords

2022 OA procedure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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20210823_ExtAbstract_SupSBCM_v6_pubAccepted author version, 685 KBLicence: Taverne

Cite this

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title = "Improving Support Stiffness of Flexure Mechanisms by Statically Balancing",

abstract = "Static balance eliminates the actuation stiffness of flexure mechanisms and thereby reduces the motor effort and unwanted heat production. However, this typically comes at the cost of lowered support stiffness and stroke. This paper aims to show that the maximum stresses in the flexures may be reduced as well by static balance. Therefore, thicker flexures can be used, paradoxically leading to an increased support stiffness by static balance. In a case study of a parallel flexure mechanism we shown an increased support stiffness of 11%, while the measured actuation stiffness reduces by more than 95%. This shows that a tradeoff between actuation and support stiffness is avoidable.",

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AU - de Jong, Jan

AU - Theans, Sebastiaan

AU - Epping, Lars

AU - Brouwer, Dannis Michel

PY - 2021/11/3

Y1 - 2021/11/3

N2 - Static balance eliminates the actuation stiffness of flexure mechanisms and thereby reduces the motor effort and unwanted heat production. However, this typically comes at the cost of lowered support stiffness and stroke. This paper aims to show that the maximum stresses in the flexures may be reduced as well by static balance. Therefore, thicker flexures can be used, paradoxically leading to an increased support stiffness by static balance. In a case study of a parallel flexure mechanism we shown an increased support stiffness of 11%, while the measured actuation stiffness reduces by more than 95%. This shows that a tradeoff between actuation and support stiffness is avoidable.

AB - Static balance eliminates the actuation stiffness of flexure mechanisms and thereby reduces the motor effort and unwanted heat production. However, this typically comes at the cost of lowered support stiffness and stroke. This paper aims to show that the maximum stresses in the flexures may be reduced as well by static balance. Therefore, thicker flexures can be used, paradoxically leading to an increased support stiffness by static balance. In a case study of a parallel flexure mechanism we shown an increased support stiffness of 11%, while the measured actuation stiffness reduces by more than 95%. This shows that a tradeoff between actuation and support stiffness is avoidable.

KW - 2022 OA procedure

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M3 - Paper

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T2 - 36th Annual Meeting of the American Society for Precision Engineering, ASPE 2021

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ER -

Improving Support Stiffness of Flexure Mechanisms by Statically Balancing

Abstract

Conference

Keywords

UN SDGs

Access to Document

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