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一种测量一维结构振动功率流的新方法
引用本文:王术新,姜哲,朱志伟. 一种测量一维结构振动功率流的新方法[J]. 振动工程学报, 2003, 16(3): 368-372
作者姓名:王术新  姜哲  朱志伟
作者单位:江苏大学振动噪声研究所,镇江,212013
基金项目:国家自然科学基金资助项目(编号:50075036)
摘    要:通过设计正弦和余弦形状PVDF传感器,提出了一种测量一维结构振动功率流和位移的新方法,并与用压电加速度传感器的测量结果进行了比较,结果表明:这种新的测量方法测量方便、数据精确,完全可以取代传统测量方法。并且PVDF传感器还可以同时测量角位移、弯矩、剪力等其它振动量,因此这种传感器功能齐全、应用广泛,具有重大的研究价值和现实意义。

关 键 词:功率流 结构振动 测量 形状函数 压电加速度传感器 位移 梁
修稿时间:2002-06-26

A New Method for Measuring Power Flow of One-Dimensional Vibrating Structure
Wang Shuxin Jiang Zhe Zhu Zhiwei. A New Method for Measuring Power Flow of One-Dimensional Vibrating Structure[J]. Journal of Vibration Engineering, 2003, 16(3): 368-372
Authors:Wang Shuxin Jiang Zhe Zhu Zhiwei
Abstract:The paper gives a design of sine-shaped and cosine-shaped PVDF sensors, and outlines a new method for measuring power flow and transverse displacement of one-dimensional vibrating structure. The results measured by the PVDF sensors are compared with those obtained using traditional piezoelectric accelerator sensors. It is shown that the new measuring method is convenient and the result is accurate too. So the new measuring method can replace the traditional one. In additional, the PVDF sensors can be used to measure other vibration signals, such as angular displacement, bending moment and shear force. So the PVDF sensors have many functions and can be utilized widely,which have important value for research and practice.
Keywords:power flow  polyvinylidene fluoride  sensors  trans verse displacement  shape-function
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