.png){kind=icon}
返回
Quantitative modal analysis using electronic speckle pattern interferometry
.png){kind=icon}
PRE
AI
DOI：10.1016/S0143-8166(99)00006-8.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Existing modal analysis techniques based on pointwise methods such as accelerometers and laser vibrometers, suffer from the compromises required to infer whole field vibration behaviour from a predetermined number of discrete measurement data points. The measurement grid is normally chosen before the most sensitive areas of the test piece have been identified and this can lead to a requirement for further grid refinement, with the consequent spatial and temporal disadvantages. Whole-field modal analysis using electronic speckle pattern interferometry (ESPI) has been developed, and focuses on the manipulation of optical information to provide a grid of data points which is transferred to a modal analysis software package for comparison with traditional point wise modal data sets. The advantages of obtaining the initial whole-field vibration picture in real time and subsequently overlaying a chosen measurement data grid, are demonstrated. Modal analysis of a steel plate is presented, which demonstrates single displacement vector measurements. Data is transferred into modal analysis software allowing ESPI mode shape information to be directly compared with measurements using other pointwise techniques and finite element analysis (FEA), through a modal assurance criterion (MAC) calculation. Further results are presented for multiple displacement vector analysis of high-power ultrasonic components, demonstrating the ability to accurately measure the modal characteristics of complex dynamic components. (C) 1999 Elsevier Science Ltd. All rights reserved.
Keyword:
VIBRATION
PLATES
ESPI
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.7
论文数:
7.3K
被引数:
1.7W
机构
暂无机构信息
引用论文
Eligibility and Self Selection: Discontinuities in Transition to Tertiary Education in Victoria资格与自我选择：维多利亚州高等教育的过渡中断
PREAI
分享收藏分享收藏Genito-Urinary Function and Quality of Life after Elective Totally Laparoscopic Sigmoidectomy after at Least One Episode of Complicated Diverticular Disease According to Two Different Vascular Approaches: the IMA Low Ligation or the IMA Preservation..png)
Chirurgia
OAAI
ChirurgiaIF0
OAAI分享收藏分享收藏Secure dominating set-based routing protocol in MANET: Using reputation基于安全支配集的MANET路由协议：使用信誉机制
PREAI
分享收藏 没有更多内容
没有更多内容