VIBRATION CONTROL OF HELICOPTER USING ANTI-RESONANCE ISOLATION SYSTEM (ARIS)

Significant structural vibration is a notable and undesirable characteristic in helicopter flight that leads to structural fatigue, poor ride quality for passengers and high acoustic signature for the vehicle. Many techniques have been hindered to reduce the techniques. A systematic design methodology, to realize vibration control system is being designed and calculated theoretically. The methodology is a four part design cycle and relies heavily on numerical computation and modelling. The methodology is ARIS with spring, pendulum and damper is an advanced passive technique to prevent transmitting loads from main rotor loads to the fuselage. In this technique mainly short pendulum is used to get more mass so that less frequency is attained. It is tuned to get the transmissibility ratio which should be less than 20% is the main task. The calculations are compared and verified using the transmissibility formula.