Torque-Free Precession and Wobble direction

  • #1
In Torque-Free Precession of a plate, can the direction of the Wobble be either in the spin direction or retrograde to it?

For instance if you tossed the plate upward vs downward with the same spin direction. Would the wobble direction and frequency be inverse?
 
Last edited:

Answers and Replies

  • #3
wrobel
Science Advisor
Insights Author
776
496
I am not sure that understood your question correctly, but anyway you are asking about the Euler top. Try textbooks
 
  • #4
I am not sure that understood your question correctly, but anyway you are asking about the Euler top. Try textbooks
Hmm... I was asking more about Feynman's Wobbling Plate. Feynman said he observed the wobble at half the spin rate, but his equation says it's 2 wobbles per spin. Could both be true? From what I've read the wobble to spin ratio is determined by the size and shape, with the caveat as long as the amplitude is not too large. What happens when the amplitude is too large?
 
  • #6
yes, it is a special case of the Euler top
So is this the difference between torque free precession = 2 wobble/1retrograde spin, vs roll or pure precession = 1wobble/1spin in same direction or zero spin?
 

Related Threads on Torque-Free Precession and Wobble direction

Replies
2
Views
2K
  • Last Post
Replies
6
Views
1K
Replies
0
Views
1K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
10
Views
2K
  • Last Post
Replies
3
Views
657
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
1
Views
690
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
3
Views
1K
Top