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Method of electrical connector intermittent fault reproduction

Li Huakang (Science and Technology on Integrated Logistics Support Laboratory, National University of Defense Technology, Changsha, China, and College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha, China)
Kehong Lv (Science and Technology on Integrated Logistics Support Laboratory, National University of Defense Technology, Changsha, China, and College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha, China)
Shen Qinmu (Science and Technology on Integrated Logistics Support Laboratory, National University of Defense Technology, Changsha, China, and College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha, China)
Jing Qiu (Science and Technology on Integrated Logistics Support Laboratory, National University of Defense Technology, Changsha, China, and College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha, China)
Guanjun Liu (Science and Technology on Integrated Logistics Support Laboratory, National University of Defense Technology, Changsha, China, and College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha, China)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 9 October 2018

Issue publication date: 19 October 2018

124

Abstract

Purpose

This paper aims to reproduce the electrical connector intermittent fault behaviours with step-up vibration stress while maintaining the integrity of the product.

Design/methodology/approach

A dynamic model of an electrical connector under vibration is established for contact resistance analysis. Next, the dynamic characteristics of contact resistance are analysed, and cumulative damage theory is used to calculate the damage under different stresses during the intermittent fault reproduction test. To reduce damage and improve efficiency, the step-up stress is used for the reproduction test.

Findings

The proposed method can reproduce the intermittent fault behaviour, and the step-up stress test is more efficient than the constant stress test.

Research limitations/implications

Step-up stress is used for intermittent fault reproduction, and the quantitative relationships between intermittent fault and product damage can be further studied.

Practical implications

It is expected that the proposed methodology can help engineers to reproduce the intermittent fault behaviours to facilitate the detection and diagnosis of intermittent fault and to improve equipment safety.

Originality/value

The mechanism of electrical connector reproduction is analysed and the step-up stress test is used for intermittent fault reproduction.

Keywords

Citation

Huakang, L., Lv, K., Qinmu, S., Qiu, J. and Liu, G. (2018), "Method of electrical connector intermittent fault reproduction", Aircraft Engineering and Aerospace Technology, Vol. 90 No. 6, pp. 946-955. https://doi.org/10.1108/AEAT-12-2016-0253

Publisher

:

Emerald Publishing Limited

Copyright © 2018, Emerald Publishing Limited

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