Question

A fuel tank attached with an airplane wing has a mass of 150 kg that changes...

A fuel tank attached with an airplane wing has a mass of 150 kg that changes to 1000 kg as fuel
is added. Calculate the change in the natural frequency of vibration of the wing. Typical length
of the wing is around 2 m whereas the corresponding E value is around 7E9 N/m2

Engineering   Mechanical-Engineering   
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Answer #1

Here A is not given ,area of airplane.so that we cannot find the exact frequency of vibrations.

But we can say that by adding fuel the natural frequency of vibrations is decreases by 61.27 %.(negative represent the decrement of vibrations).

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