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Study and Analysis of the Behavior of a Seated Human Body in a Vehicle by the Influence of an Active Suspension System
Technical Paper
2019-01-0403
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The objective of this paper is to study the influence of a suspension system on the human body with the effect of the controller behavior. For this work, 2-Degree of Freedom (DoF) quarter car suspension system with 4 DoF seated human body is modeled. The mathematical equation is developed by using a lumped mass parameter method. Governing equations of motions are generated by Newton’s Law of motion. Random road profile is also considered for this study. MATLAB/SIMULINK software is used to simulate the system results and system analysis is limited to a Proportional Integral Derivative (PID) controller with hydraulic actuator. Seat to Head transmissibility ratio of the active suspension system is analyzed and compared with the passive suspension system. Finally, to illustrate the effectiveness of the proposed active system, simulated results are compared with ISO 2631 comfort curves. Therefore the result shows that the PID based active suspension system improves the ride comfort of the occupant when compared with passive suspension.
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Citation
Anandan, A. and K, A., "Study and Analysis of the Behavior of a Seated Human Body in a Vehicle by the Influence of an Active Suspension System," SAE Technical Paper 2019-01-0403, 2019, https://doi.org/10.4271/2019-01-0403.Data Sets - Support Documents
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