Rotation from Oscillating Axis Of Rotation

In summary, the conversation discusses a scenario where a rod is able to freely rotate on an axle that is moved back and forth in a linear and periodic manner. The discussion also touches upon why the rod is spinning, with the conclusion that it is due to the axle adding tangential velocity to the rod. A sketch is mentioned as a way to further explain the motion, and it is noted that the rod rotates and oscillates simultaneously due to torque being applied to its center of mass.
  • #1
Omikhiro
1
0
Hello. I was considering a case where a rod could rotate about its end freely on an axle. The axle is moved back and forth linearly and periodically, causing the rod to spin.

Why is the rod spinning? Is it because after the axle has moved its distance in one direction and has stopped to move in the other direction, it is adding tangential velocity to the rod?
 
Physics news on Phys.org
  • #2
I sketch showing the motion would equal many words.
 
  • #3
It is applying torque with respect to the COM of the rod except two positions where the direction of oscillations align with the rod, thus the rod rotates and oscillates at the same time.
 

Related to Rotation from Oscillating Axis Of Rotation

1. What is "Rotation from Oscillating Axis Of Rotation"?

"Rotation from Oscillating Axis Of Rotation" is a phenomenon that occurs when an object rotates around an axis that itself is oscillating or moving in a circular motion. This can happen in various scenarios, such as a spinning top on a wobbly surface or a planet orbiting a star that is itself moving in a larger orbit.

2. How is "Rotation from Oscillating Axis Of Rotation" different from regular rotation?

In regular rotation, the axis of rotation remains fixed, while the object itself spins around that axis. In "Rotation from Oscillating Axis Of Rotation", the axis of rotation is also moving, which can lead to more complex and unpredictable patterns of movement.

3. What causes "Rotation from Oscillating Axis Of Rotation"?

The cause of "Rotation from Oscillating Axis Of Rotation" depends on the specific scenario in which it occurs. In some cases, it may be due to external forces acting on the axis of rotation, such as gravity or friction. In other cases, it may be caused by internal forces or properties of the system, such as the distribution of mass or the shape of the rotating object.

4. What are some real-world examples of "Rotation from Oscillating Axis Of Rotation"?

One well-known example of "Rotation from Oscillating Axis Of Rotation" is the motion of a spinning top on a wobbly surface. Another example is the precession of Earth's axis, which causes the direction of the North Pole to slowly change over time. Other examples can be found in celestial objects, such as the orbit of the moon around Earth, which itself orbits the sun.

5. What are the practical applications of studying "Rotation from Oscillating Axis Of Rotation"?

Understanding "Rotation from Oscillating Axis Of Rotation" can be useful in various fields, such as physics, engineering, and astronomy. It can help scientists and engineers design stable and efficient rotating systems, such as gyroscopes and satellites. It also plays a crucial role in explaining and predicting the behavior of celestial objects, ranging from planets and moons to galaxies and black holes.

Similar threads

I Energy of spinning objects as axis of rotation moves
    • Mechanics
Replies
1
Views
474
I Is angular momentum perpendicular to fixed axis of rotation constant?
    • Mechanics
Replies
1
Views
347
B Impulse and distance from the axis of rotation
    • Mechanics
Replies
9
Views
1K
I Confused about the axis of rotation in rotational motion w/o slipping
    • Mechanics
Replies
10
Views
1K
Lagrangian mechanics - rotating rod
    • Mechanics
Replies
3
Views
1K
I Tangential velocity of an object rotating around a rotating axis
    • Classical Physics
Replies
5
Views
854
Confusion about tidal locking and rotational kinetic energy
    • Mechanics
Replies
3
Views
922
Precession - why does the rotational axis change as L changes?
    • Mechanics
Replies
8
Views
1K
Moving relative to a rotating helix
    • Mechanics
Replies
1
Views
1K
I Conservation of angular momentum during collisions
    • Mechanics
Replies
3
Views
1K

Hot Threads

Recent Insights

Back
Top