Publikacje

Abstract:

The article describes the practical application of active seat suspension in vehicles and work machines. The focus of the study is a passive suspension system that has been enhanced with an active system controlled by a pneumatic bellows actuator to improve vibration isolation. The structure of the system, including the designated output control function, is explained. The results of testing the vibration isolation capabilities of the seat suspension in a work machine are presented. The proposed method effectively reduces the relative displacements of the operator's seat, leading to a significant improvement in work comfort and an increase in work safety. The combination of active isolation with passive isolators yielded the best damping effects, with preset values for the dynamic parameters of the system. The proposed method has successfully minimized the displacement of the operator's seat, which has a positive impact on occupational safety. To summarize, semi-active seat suspension systems provide a favorable balance between comfort and control, and they prove to be efficient in effectively reducing vehicle vibrations. These systems also have the potential to enhance vehicle safety by adjusting the suspension during emergencies. To mitigate the negative effects of vibrations on machine and vehicle operators, it is crucial to design seat suspensions with vibration-dampening properties. The experimental rig escribed in the article serves as a valuable tool for studying the vibration-damping characteristics of working machinery seats. The results obtained from testing the seat suspension system confirm that the proposed method significantly reduces the relative displacement of the operator's seat, thereby improving occupational safety.

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Improving driving comfort and vibration control in vehicles by implementing semi-active seat suspension systems