Identification of External Force Acting on a Machine or a Structure in the Case of Unknown Force Location
Identification of External Force Acting on a Machine or a Structure in the Case of Unknown Force Location
复制标题
未知力位置情况下作用于机器或结构的外力识别
DOI：
10.1299/jee.4.422
复制
发表时间：
2009
期刊：
影响因子：
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通讯作者：
H. Minamoto
中科院分区：
文献类型：
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作者：
S. Kawamura;Shintaro Hori;H. Minamoto
作用在机器或结构上的外力的识别对于诊断是重要的。力识别方法之一是基于频率响应函数。该方法是非常有用的，虽然它需要的知识的位置的作用力。在这项研究中，提出了一种识别方法的情况下，未知的激励点。该方法首先在每个待测位置处假设与传感器大小相同的外力，并识别出力的幅值。然后通过对所有识别结果的分类，确定外力的确切位置。对该方法进行了数值验证，结果表明，该方法在含噪声数据的情况下是有效的。实验结果表明，该方法在位置和幅值分别识别的情况下是可行的。
The identification of external force acting on a machine or a structure is important for the diagnosis. One of the force identification methods is based on the frequency response function. The method is very useful although it requires the knowledge of location of force acting. In this study, an identification method is proposed for the case of unknown excitation points. The method is firstly the external forces, whose amount is same as the one of sensors, are assumed at every candidate location, and the amplitudes of forces are identified. Then the exact location of external force is determined by the classification of all identified results. The method is numerically checked and it was shown that the method was useful using the data with noise. Moreover the experimental results showed that the method was feasible when the location and amplitude are separately identified.
DOI：
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发表时间：
2006
期刊：
Proc. of the Japan Society of Mechanical Engineers (Dynamics and Design Conference 2006) No.06-7, Paper No.643(on CD-ROM)
影响因子：
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作者：
Shozo KAWAMURA;Yasunori HAYAKAWA;Hossain Md Zahid;Hirofumi MINAMOTO
通讯作者：
Hirofumi MINAMOTO