Pitot tube vibration on ground

[Pajama Pilot]

When the plane is immobilized, the Pitot tube shakes and stabilizes when taxi starts. Should not it be the opposite?

 

I love this bird

 

Thanks

[p1t1o]

Not necessarily. This type of shaking is caused by resonance, which means that vibrations of a certain frequency are amplified. If you change something about the system (such as the flexibility of the system such as releasing brakes, or, hypothetically, the length of the pitot tube) then the frequency band are which resonance occurs can change, so the vibration of things stops being amplified. Or if the frequency of vibration changes (such as if engine RPM is altered) then the vibration can move out of the resonant band, de-amplifying it.

[Pajama Pilot]

Not necessarily. This type of shaking is caused by resonance, which means that vibrations of a certain frequency are amplified. If you change something about the system (such as the flexibility of the system such as releasing brakes, or, hypothetically, the length of the pitot tube) then the frequency band are which resonance occurs can change, so the vibration of things stops being amplified. Or if the frequency of vibration changes (such as if engine RPM is altered) then the vibration can move out of the resonant band, de-amplifying it.

 

 

Thank you very much for your explanation. :book:

 

 

 

best regards