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The tail rotor section of the helicopter has 4 blades. Each of mass 2.3kg and the engine box of mass 28.5 kg. The center of gr blade is 170 mm from the rotational axis. The natural frequency of the tail section is observed as 135 rad/s. During the flight, operates at 1000 rpm. What is the amplitude of the tail section if one of the blades falls off during flight? Given: damping ratio 0.1 Select one: O 19.25 mm O9.25

The tail rotor section of the helicopter has 4 blades. Each of mass 2.3kg and the engine box of mass 28.5 kg. The center of gr blade is 170 mm from the rotational axis. The natural frequency of the tail section is observed as 135 rad/s. During the flight, operates at 1000 rpm. What is the amplitude of the tail section if one of the blades falls off during flight? Given: damping ratio 0.1 Select one: O 19.25 mm O9.25

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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The tail rotor section of the helicopter has 4 blades. Each of mass 2.3kg and the engine box of mass 28.5 kg. The center of gravity of each blade is 170 mm from the rotational axis. The natural frequency of the tail section is observed as 135 rad/s. During the flight, the rotor operates at 1000 rpm. What is the amplitude of the tail section if one of the blades falls off during flight? Given: damping ratio = 0.1 Select one: O 19.25 mm O 9.25 3.65 mm 13.56 mm Clear my choice
Transcribed Image Text:The tail rotor section of the helicopter has 4 blades. Each of mass 2.3kg and the engine box of mass 28.5 kg. The center of gravity of each blade is 170 mm from the rotational axis. The natural frequency of the tail section is observed as 135 rad/s. During the flight, the rotor operates at 1000 rpm. What is the amplitude of the tail section if one of the blades falls off during flight? Given: damping ratio = 0.1 Select one: O 19.25 mm O 9.25 3.65 mm 13.56 mm Clear my choice
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