基于单目离面视觉的结构振动检测

中国机械工程

基于单目离面视觉的结构振动检测

喻其炳1;尹爱军2;薛磊2;张泉2

1.重庆工商大学装备系统服役健康保障国际联合研究中心, 重庆，400067
2.重庆大学机械传动国家重点实验室，重庆，400044

出版日期:2016-09-10 发布日期:2016-09-18
基金资助:
国家自然科学基金资助项目（51105396）；装备系统服役健康保障国际联合研究中心开放基金资助项目（KFJJ201501002）；重庆市科委项目（cstc2015jcyjA70007）

Analysis of Structure Vibration Based on Out-of-plane Monocular Vision

Yu Qibing1;Yin Aijun2;Xue Lei2;Zhang Quan2

1.Research Center of System Health Maintenance,Chongqing Technology and Business University,Chongqing,400067
2.State Key Laboratory of Mechanical Transmissions,Chongqing University,Chongqing,400044

Online:2016-09-10 Published:2016-09-18
Supported by:

摘要/Abstract

摘要： 针对常规视觉测量中光学系统复杂、计算量大等问题，提出了一种离面视觉测量方法。讨论了离面振动成像的基本原理，结合模态分析理论，研究了常规成像条件下单相机结构振动特征参数的识别及无激励振型分析。悬臂梁的离面视觉振动测试实验、传统传感器测量实验及ANSYS仿真的对比结果表明，所提出方法可以准确识别低阶固有频率、阻尼和振型等模态信息。最后分析了该方法的后续研究方向。

关键词: 离面视觉, 视觉测量, 振动参数识别, 振型

Abstract: Conventional vision measurement had problems of complex system or large amount of calculations. The measurement principles of out-of-plane vision were researched. And combining the theory of modal analysis, the structural vibration parameters were identified by a CCD camera under the normal light conditions. And compared the experimental results and ANSYS shows the method can measure the structure vibration parameters (natural frequency, damping and vibration mode) accurately. The future researches of this method were given in the end of the paper.

Key words: out-of-plane vision, visual measurement, vibration parameter identification, vibration mode

中图分类号:

TH113

喻其炳, 尹爱军, 薛磊, 张泉. 基于单目离面视觉的结构振动检测[J]. 中国机械工程.

Yu Qibing, Yin Aijun, Xue Lei, Zhang Quan. Analysis of Structure Vibration Based on Out-of-plane Monocular Vision[J]. China Mechanical Engineering.

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