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Optimal design of vibration-isolation systems by means of a numerical simulation
Igor Maciejewski,Mariusz Zlobinski,Tomasz Krzyzynski 대한기계학회 2021 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.35 No.9
In this paper the computational methodology for evaluating vibro-isolation properties of the vibration reduction systems is discussed. The proposed procedure supports selecting the non-linear dynamic behaviour of passive systems and helps to perform the controller synthesis of active systems. Primarily, the mathematical model of a vibration reduction system is developed for the purpose of simulating its dynamic behaviour under different operating conditions. In the next step, the selected vibro-isolation criteria are determined numerically that are related to the opposed requirements of modern vibration reduction systems. Finally, an application of the Pareto-optimal approach is employed to find a trade-off regarding the high efficiency of vibration attenuation at the lowest suspension travel.
Method of selecting vibro-isolation properties of vibration reduction systems
Igor Maciejewski,Tomasz Krzyzynski 대한기계학회 2016 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.30 No.4
An effective optimization method is proposed in this paper to determine the basic characteristics of non-linear visco-elastic elements used in passive vibration reduction systems. The developed method is examined by performing experimental investigations on the exemplary vibration reduction system, i.e., the passive seat suspension. The shaping of vibro-isolation properties is analyzed for different spectral classes of excitation signals.
Igor Maciejewski,Tomasz Krzyzynski 대한기계학회 2018 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.32 No.11
A generalized model of vibration isolation systems with a human body in a seated position is developed. The system dynamics is modeled for a single-axis transmission of vibration, that is, longitudinal x, lateral y and vertical z, to limit whole-body vibration exposure. The developed model can be successfully employed to describe the propagation of vibration waves from the source to a vibrating object. The proposed mathematical model can be widely used to protect a human body against vibration.