...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta polytechnica >A COMPARISON OF TWO MODAL ANALYSIS METHODS AN IMPACT HAMMER VERSUS LASER VIBROMETRY
【24h】

A COMPARISON OF TWO MODAL ANALYSIS METHODS AN IMPACT HAMMER VERSUS LASER VIBROMETRY

机译：两个模态分析方法的比较冲击锤与激光振动器

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents a comparative experimental-analytical study on the performance of Multi-Input Single-Output (MISO) and Single-Input Multi-Output (SIMO) techniques to identify the modal properties of a cantilever beam. A 2-D laser interferometry was employed to perform the SIMO modal test, while for the MISO test configuration, a conventional accelerometer was used to measure the response of the structure. Comparing the experimentally-measured natural frequencies with those calculated by the FEM model, a maximum difference of 4% between natural frequencies was observed. The repeatability of both techniques is also investigated in this paper and it is shown that the difference between modal properties identified under different operators is less than 0.5% for both the MISO and SIMO techniques.
机译：本文介绍了对多输入单输出（MISO）和单输入多输出（SIMO）技术的性能的比较实验分析研究，以识别悬臂梁的模态特性。使用2-D激光干涉测量法进行SIMO模态测试，而对于MISO测试配置，使用常规的加速度计来测量结构的响应。将实验测量的天然频率与由FEM模型计算的那些进行比较，观察到自然频率之间的4％的最大差异。本文还研究了两种技术的可重复性，并显示出在不同运营商下识别的模态特性之间的差异小于MISO和SIMO技术的0.5％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号