Effect of Seat Damper Bidirectional Ratio on Impact Dynamic Behaviors of Human-Seat for Logistic Vehicles

doi:10.13190/j.jbupt.2018-051

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2018, Vol. 41 ›› Issue (6): 14-19.doi: 10.13190/j.jbupt.2018-051

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Effect of Seat Damper Bidirectional Ratio on Impact Dynamic Behaviors of Human-Seat for Logistic Vehicles

ZHAO Lei-lei¹, YU Yue-wei², ZHOU Chang-cheng², YANG Fu-xing¹

1. School of Automation, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2. School of Transportation and Vehicle Engineering, Shandong University of Technology, Shandong Zibo 255000, China

Received:2018-03-01 Online:2018-12-28 Published:2018-12-24

Abstract

Abstract: To ascertain the damper bidirectional ratio effect on the impact dynamic behavior of the human-seat system, the most widely used X-type seat is taken as the research object. Based on the measured data by the damper bench, the damper damping characteristic of the seat is simplified as an asymmetric piecewise linear function. A nonlinear dynamic model for the human-seat was proposed and its equation was created and validated by seat test. Based on the model and the equation, taking a typical pulse with different intensity as inputs, numerical simulations were carried out under different bidirectional ratios. It is shown that when the seat damper bidirectional ratio is larger than 1, it becomes more conducive to attenuate the impact on drivers, and the greater the impact input intensity is, the better the relative isolation effect is.

Key words: logistic vehicles, seat, damper, bidirectional ratio

CLC Number:

U463

ZHAO Lei-lei, YU Yue-wei, ZHOU Chang-cheng, YANG Fu-xing. Effect of Seat Damper Bidirectional Ratio on Impact Dynamic Behaviors of Human-Seat for Logistic Vehicles[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2018, 41(6): 14-19.

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Effect of Seat Damper Bidirectional Ratio on Impact Dynamic Behaviors of Human-Seat for Logistic Vehicles

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