The attached report describes active vibration control in helicopter fuselages using the ACSR (Active Control of Structural Response) approach. In this approach the vibration reduction is carried out by using four actuators in the fuselage. The fuselage is modeled by finite elements. The vibratory aerodynamic loads include a free wake combined with rotor/fuselage interactional aerodynamics. An improved control algorithm preferentially reduces accelerations at selected airframe locations where vibration levels are important. Fuselage vibrations are reduced below 0.05g at all locations.
Vibration Reduction in Rotorcraft Using the ACSR Approach with Enhanced Aerodynamic and Control Modeling
2000
6 pages
Report
No indication
English
Vibration Suppression in Helicopters Using the ACSR Approach with Improved Aerodynamic Modeling
British Library Conference Proceedings | 1999
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British Library Conference Proceedings | 2000
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