Theoretical approach with object of determining natural frequencies and hub characteristics of single rotor helicopter in free ground vibration for use in analysis of self excited mechanical oscillations of hinged rotor blades; method is intended to obviate experimental determination of these parameters.
Helicopter in free ground vibration
Aircraft Eng
Aircraft Engineering ; 24 , n 286
1952
5 pages
Aufsatz (Zeitschrift)
Englisch
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The Helicopter in Free Ground Vibration
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