Hybrid Mass Damper Using Electromagnetic Resonator: Application to a Helicopter
* Presenting author
This work aims to illustrate how to increase the efficiency of an initial passive damped electromagnetic resonator by controlling the mass response actively. In aerospace and aeronautical engineering a fail-safe design for active systems is usually required. Hybrid Mass Dampers (HMD) tend to realize these objectives. Design rules and limitations of the so-called Hybrid Mass Damper (HMD) are discussed and analyzed. The main idea is to modify a DVA (Dynamic Vibration Absorber) to use it as an AMD (Active Mass Damper). Objectives are to take the best of the two technologies and increasing the performance of the passive device and/or decreasing the control effort of the actuator in comparison with a fully active system. A specific electromagnetic resonator is then designed and an appropriate control law is proposed. The methodology is illustrated and validated with an application to a helicopter. Theoretical and numerical results are completed by experimental validation.