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A tail rotor section of the helicopter consistent of four blades, each of mass 2.3 kg and an engine box of mass 28.5 kg. The centre of gravity of each blade is 170 mm from the rotational axis.
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written 4.9 years ago by
bhaveshkumarn.pasi
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The tail section is connected to the main body of the helicopter by an eccentric structure, The natural frequency of a tail section is observed as 135 rad/sec, During flight the rotor operates at 900 rpm, What is the vibration amplitude of the tail section if one of the blades …
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