Energy-Saving Mechanism of Active Vibration Isolation Stand for Transporting the Injured Using Pleasure Boats

This paper presents an energy-saving mechanism for an active vibration isolation stand for transporting the injured using pleasure boats. The basic strategy of saving energy consumption of the actuator is to lower the natural frequency of the active vibration isolation stand. The proposed mechanism contains two components that help to reduce the natural frequency. One is a tri-linear spring mechanism, which provides both a high degree of stiffness to support the weight of the injured, and a low degree of stiffness in equilibrium. The other component is a rotational inertia mechanism, which can increase the apparent sprung mass in the translation motion.