Research of identification technology of dynamic load location

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Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (1) : 20-23,4.

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Research of identification technology of dynamic load location

ZHU De-chun； ZHANG Fang；JIANG Jin-hui

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Abstract

Used a simply supported beam as the research object, proposed a dynamic load location identification method of "Law of the minimum coefficient of determination". Forecasted the virtual location of the load, two equivalent dynamic loads of virtual location were identified based on two groups of seclecting acceleration responses in the frequency domain. Ordered the difference of the two to be an optimal target variable, the virtual position that the target variable corresponding to is the real loading position. Simulation and experimental results show that the method is correct and feasible.

Key words

simply supported beam / load identification / virtual position / determination coefficient / finite element method

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ZHU De-chun;ZHANG Fang;JIANG Jin-hui. Research of identification technology of dynamic load location[J]. Journal of Vibration and Shock, 2012, 31(1): 20-23,4