首页  |  期刊简介  |  期刊荣誉  |  编委会  |  现任主编  |  投稿指南  |  下载中心  |  期刊征订
中文核心期刊
Ei Compendex收录期刊
中国科学引文数据库来源期刊
中文科技期刊数据库收录期刊
国际刊号:1004-6801
国内刊号:32-1361/V
用户登录
  E-mail:  
  密  码:  
  作者 审稿  
  编辑 读者  
期刊向导
联系方式
  • 主管:中华人民共和国工业和信息化部
  • 主办:南京航空航天大学
  •           全国高校机械工程测试技术研究会
  • 国际刊号:1004-6801
  • 国内刊号:32-1361/V
  • 地址:南京市御道街29号
  • 电话:025-8489 3332
  • 传真:025-8489 3332
  • E-mail:qchen@nuaa.edu.cn
  • 邮编:210016
单点激光连续扫描测振的薄壁圆筒件模态测试
Modal Testing Method for Thin-Sheet Cylinder Parts Based on Single-Point Laser Continuous Scanning Vibrometry
  
DOI:10.16450/j.cnki.issn.1004-6801.2017.04.007
中文关键词:  单点激光连续扫描; 振动测量; 薄壁圆筒构件; 模态测试
英文关键词:Single-point laser continuous scanning; vibration measurement; thin-sheet cylinder parts; modal testing
基金项目:(国家自然科学基金资助项目(51205122)
作者单位
伍济钢,袁继广,蒋勉,张双健 (湖南科技大学机械设备健康维护湖南省重点实验室,湘潭411201) 
摘要点击次数: 44
全文下载次数: 32
中文摘要:
      针对薄壁圆筒构件模态测试的需求,提出了基于单点激光连续扫描测振的薄壁圆筒构件模态测试方法。根据纯模态分析理论,在研究两端固定细弦自由振动的基础上,理论上建立了单点激光测振仪在两端固定的自由振动细弦上做连续扫描所得的振动信号和弦的模态振型之间的关系,研究了并提出了激光测振仪输出信号的处理方法。搭建了单点激光连续扫描测振的薄壁圆筒构件模态测试平台,对薄壁圆筒构件进行了模态实测,获得了薄壁圆筒构件前五阶固有频率和相应的模态振型,并对测试结果进行了有限元模态分析验证。结果表明,模态振型一致,固有频率误差在5%以内,证明了提出方法的正确性和有效性。
英文摘要:
      Aiming at the requirements of modal testing for thin-sheet cylinder parts, a modal testing method for thin-sheet cylinder parts based on single-point laser continuous scanning vibrometry is proposed. According to normal modal analysis theory, the relationship between the vibration displacement signal which is obtained by continuous scanning the free vibration string whose both ends are fixed with single point laser vibrometer and the modal shapes of the string is established theoretically based on the investigation of free vibration of a string whose both ends are fixed. The processing approach for output of laser vibrometer is investigated. A modal testing platform for thin-sheet cylinder parts based on single-point laser continuous scanning vibrometry is built, and experimental testing for thin-sheet cylinder parts is done. The former five natural frequencies and its corresponding vibration mode are obtained. The testing results are verified by finite element modal analysis. The results show that the corresponding vibration modes are the same and natural frequency errors are less than 5%, so the proposed method is feasible and effective.
查看全文  查看/发表评论  下载PDF阅读器
关闭

Copyright @2010-2015《振动、测试与诊断》

地址:南京市御道街29号        邮编:210016

电话:025-8489 3332      传真:025-8489 3332       E-mail:qchen@nuaa.edu.cn

您是本站第976546位访问者 本站今日一共被访问364

技术支持:北京勤云科技发展有限公司