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29 March 2024 13:33

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Question

Asked by: Sh. Yazdani
Subject: precession torque in gyro
Question: Hi,
It is very important for me to know if we apply a tilting torque to a gyroscope (for example 5 NM), how much is its precession torque (reaction of gyro)? Is it the same 5NM or another value? How much is it?
Date: 17 January 2008
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Answers (Ordered by Date)


Answer: Harry K. - 21/01/2008 10:52:30
 You should give the answer by your own if you think a little bit:

To stop precession you have to apply a counter force against precession direction with the same value as the tilting force. Therefore tilting torque and precession torque must have the same value as well.
However, as soon as a counter torque is applied agains precession movement, the gyro in precession is out of balance and hence the gyro will move in tilting direction. That's the reason why a gyro drops over the time in tilting direction because of a counter torque caused by friction in the bearings.

Regards
Harry K.

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Answer: Sh. Yazdani - 21/01/2008 11:19:55
 thank you Harry K


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