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Laser Doppler vibrometer for mode shape and power flow analvsis in coupled structures

机译:激光多普勒振动计,用于耦合结构的模态形状和潮流分析

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摘要

In this paper, an experimental technique is introduced to investigate the structural response under impact loads, which consists of the waveform measuring technique in the time domain by using the WAVEVIEW software, and steady-state measurements by using the Polytec Laser Scanning Vibrometer (PLSV) in the frequency domain. The waveform measuring technique is introduced to obtain the waveform at different locations in the time domain. These experimental results can be used to verify the validity of predicted results obtained by the Acoustical Wave Propagator (AWP) technique. This PLSV technique provides an accurate and efficient tool to investigate mode shape and power flow in coupled structures. In addition, the issues related to source identification and controlling energy transfer are addressed.
机译:本文介绍了一种实验技术来研究冲击载荷下的结构响应,该技术包括使用WAVEVIEW软件在时域内进行波形测量技术以及使用Polytec激光扫描振动计(PLSV)进行稳态测量的方法。在频域中。引入了波形测量技术以获取时域中不同位置的波形。这些实验结果可用于验证通过声波传播器(AWP)技术获得的预测结果的有效性。这种PLSV技术提供了一种精确有效的工具来研究耦合结构中的振型和功率流。此外,解决了与源识别和控制能量转移有关的问题。

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