Design Of Helicopter Main Rotor Flexible Shaft With
Hybrid Construction
Student Team/ Author :
R. N. Santhosh
Guide By :
S. Srikari and M. L. J. Suman
Degree :
Helicopter is rotary wing aircraft, which is propelled by engine and lift is generated by the rotating blades. Torque transmission from gear box should be effective and plays important role in helicopter. Main rotor flexible shaft is a critical component which undergoes severe fluctuating dynamic loads and should also have torque transmitting capabilities. Several literatures have demonstrated the usage of different composite in aircraft industry. The present project is envisaged to look into the aspect of weight reduction by replacing metallic shaft through composites. Shaft undergoes twisting moment, so generally unidirectional laminate is not preferred as they may undergo de-lamination during torque transmission.
In the present investigation, analytical calculations were done initially to find the stresses acting on present metallic flexible shaft. Cross sections and loads were found from literature survey. Numerical investigation was validated for same metallic shaft and compared with analytical results. Further analysis was done by modelling the existing metallic shaft and base
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