Experimental study on modeling of single human bounce load

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (17) : 52-57.

WANG Lei1, CHEN Jun 1,2, LOU Jiayue1, LI Guo1

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Abstract

Bounce refers to the up-down movement of human body with two feet remaining on the ground, which is a typical activity of audience in a concert or sport game. This study carried out experiments to test the single person’s bouncing load under different frequency using force plates and wireless dynamometer insole. One hundred and nine test subjects participated in the experiments resulting in 822 individual bouncing load records. A fourth-order Fourier series model was suggested to represent the bounce load, whose coefficients and phase angles were determined by statistical analysis on the experimental records. The proposed model was compared with other available models in terms of model parameters and time domain. Simulated bounce load curves by the suggested model had similar shapes as the measured loads. Meanwhile, the response of a single-degree-freedom-system to simulated and measured bounce loads were nearly the same.

Key words

human bounce load / long span floor / Fourier series model / dynamic load factor

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WANG Lei1, CHEN Jun 1,2, LOU Jiayue1, LI Guo1. Experimental study on modeling of single human bounce load[J]. Journal of Vibration and Shock, 2016, 35(17): 52-57

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