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Optimization of internal thread structure of force sensor considering fatigue performance

Hongchun Sun (Northeastern University School of Mechanical Engineering and Automation, Shenyang, China)
Tianlu Wang (Northeastern University School of Mechanical Engineering and Automation, Shenyang, China)
Xindong Zhang (Shanghai Aerospace System Engineering Institute, Shanghai, China)

Sensor Review

ISSN: 0260-2288

Article publication date: 30 August 2019

Issue publication date: 5 November 2019

107

Abstract

Purpose

Fatigue damage of internal threads has gradually become the main failure mode of force sensor. To make the internal thread structure of force sensor meet the fatigue performance requirements, the design criteria of static strength and fatigue life are comprehensively considered in this paper.

Design/methodology/approach

The variation of static stress and fatigue life with the size of the main structure is obtained by simulation. By changing the number of thread turns, the hub height and outer diameter of the hub, the optimized design of the spoke force sensor is determined.

Findings

The experiment was carried out based on the determined optimized structure, and the results showed that the fatigue life meets the design requirements.

Originality/value

This research has certain guiding significance for the design and developments of high-cycle fatigue force sensors.

Keywords

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 51335003).

Citation

Sun, H., Wang, T. and Zhang, X. (2019), "Optimization of internal thread structure of force sensor considering fatigue performance", Sensor Review, Vol. 39 No. 6, pp. 835-843. https://doi.org/10.1108/SR-05-2019-0137

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited

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