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《Journal of Dalian University of Technology》 1987-04
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Dynamic Load Identification by Time Domain Method

Tang Xiujin (Department of Engineering Mechanics, DIT )  
In this paper, a time domain method for dynamic load identification by indirect measurement is presented. First, modal transformation is carried out to obtain the decoupled equation of motion. Then, the modal force function can be identified sequentially under the assumption that within a small time inter- val the modal dynamic loads are step functions. Finally, the time history of the dynamic loads can be determined by inverse modal transformation. A successful example is carried out by simulation and the problems related to the adoption of this method are also discussed.
【Fund】: 国家自然科学基金资助项目
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