Design and evaluation of vibration reducing seat suspension based on negative stiffness structure

The vibration transmitted to helicopter aircrew is the main health risk, specifically at low excitation frequencies. In this paper, to improve the vibration environment for aircrew, a seat suspension using a negative stiffness structure has been proposed. The main feature of the proposed system is the negative stiffness structure along with a traditional positive stiffness structure. Here, the dynamic model of the proposed system is derived and...