利用平均振动响应能量的螺栓松动检测方法

伍济钢; 邵俊; 周根; 阳德强; 成远

doi:10.13433/j.cnki.1003-8728.20200427

利用平均振动响应能量的螺栓松动检测方法

doi: 10.13433/j.cnki.1003-8728.20200427

1.
湖南科技大学机械设备健康维护湖南省重点实验室, 湖南湘潭 411201
2.
中国航发湖南南方宇航工业有限公司, 湖南株洲 412002

基金项目:

国家自然科学基金项目 51775181

详细信息

作者简介:
伍济钢(1978-), 教授, 博士生导师, 博士, 研究方向为机械动力学和机器视觉测量, jwu@cvm.ac.cn

中图分类号: TH113.1;O329
计量
- 文章访问数: 120
- HTML全文浏览量: 46
- PDF下载量: 25
- 被引次数: 0
出版历程
- 收稿日期: 2020-10-19
- 刊出日期: 2022-07-25

Detecting Method for Bolt Looseness with Average Vibration Response Energy

1.
Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201, Hu'nan, China
2.
AECC Hunan South Astronautics Industry Co., Ltd., Zhuzhou 412002, Hu'nan, China

摘要

摘要: 为简单有效检测结构的螺栓松动故障, 提出了一种利用平均振动响应能量的螺栓松动检测方法。首先, 建立振动响应能量相关的螺栓松动损伤指标; 然后, 为减少噪声对数据结果的影响, 提出将平均振动响应能量作为螺栓松动损伤指标; 最后, 利用螺栓松动前后该指标相对变化量构造损伤指数, 并根据损伤指数大小判断松动螺栓所在位置。实验结果表明, 该方法能有效的进行螺栓松动位置检测。
- 平均振动响应能量 /
- 螺栓松动 /
- 检测方法 /
- 损伤指数
Abstract: In order to detect the failure of bolt looseness of the structure simply and effectively, a method for detecting bolt looseness by using average vibration response energy was proposed. Firstly, the bolt loosening damage indicator related to vibration response energy was established. Secondly, in order to reduce the influence of the noise on the results, the average vibration response energy was proposed as the bolt loosening damage indicator. Finally, the relative change in the damage norm before and after bolt loosening was used to construct damage index, and the location of the loose bolt was judged according to the damage index. The experimental results show that the present method can effectively detect the bolt loosening position.
- average vibration response energy /
- bolt looseness /
- detection method /
- damage index

HTML全文

图 1 单目视觉振动测量模型

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图 2 松动检测方法流程图

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图 3 螺栓松动检测系统

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图 4 螺栓松动检测实验平台

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图 5 激振器和螺栓连接板

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图 6 图像上标记点位置

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图 7 bolt₂螺栓松动损伤指数直方图

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图 8 bolt₅螺栓松动损伤指数直方图

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图 9 bolt₈螺栓松动损伤指数直方图

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图 10 不同松动程度的损伤指数关系

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