Synthesis and examination of the vibration control systems with variable spring and damping coefficients

This paper deals specifically with a synthesis of the semi-active pneumo-hydraulic vibration control systems with variable structure. The concepts of the vibration control systems with a variable stiffness and a variable damping were developed. The analysis of the aforementioned models was carried out along with the verification of it in the digital simulation procedure. This investigation indicated that the vibration control systems with a variable structure provide a considerable vibration isolation efficiency in the frequency range beyond 1 Hz. The design of the semi-active vibration control system with a variable structure is discussed on the example of its application to the driver seat suspension. The research model of such a system was formulated and the experimental examination was carried out. This investigation has confirmed the possibility of the application of the developed system to the human body protection against the harmful vibration effect.