Modelling and Optimization of Passive and Semi-active Suspension of a 3 DOF Seat Platform

  • Stefan SeglaEmail author
Conference paper
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 73)


The paper deals with modelling, control and optimization of a 3 DOF seat platform suspension system with kinematic excitation. The primary goal of the seat platform is to reduce horizontal vibration of the seat, while the vertical vibration is reduced by the seat itself. Three alternatives of the platform are investigated. The conventional one is equipped with passive elements, in the second one idealized semi-active dampers are used and the third one is equipped with magnetorheological dampers. The skyhook control is applied to control the idealized semi-active and also magnetorheological dampers. Appropriate design parameters of the mechanical and also control parts of the three suspensions are chosen and their values are optimized using multi-objective optimization procedure with the objective function minimizing the frequency weighted accelerations and relative displacements. The results of numerical simulation show that using idealized semi-active and also magnetorheological platform suspensions leads to significant platform vibration reduction compared with the passive platform suspension.


Seat Platform Passive Suspension Semi-active Suspension 


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The authors have been supported by grant project VEGA No. 1/1205/12.


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Technical University of KosiceKosiceSlovakia

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