- #1
skeer
- 17
- 0
The problem goes by this:
A sphere of radius ##\rho## is constrained to roll without slipping on the lower half of the
inner surface of a hollow cylinder of inside radius R. Determine the Lagrangian
function, the equation of constraint, and Lagrange's equations of motion. Find the
frequency of small oscillations.
What I am thinking:
Problem: I do not know how to relate the distance traveled by the center of mass of the sphere inside the cylinder.
The sphere has a constraint related to its center of mass and its diameter. If it was in a plane it would be that the distance traveled its equal to the radius times an angle: ## x = \rho\times\theta##. However, the sphere is inside the cylinder...
The sphere is rolling, thus it has kinetic energy. My question is: should I used the time derivative of the angle that I used to relate the motion of the sphere ?
Any help would be appreciated. Thank you!
A sphere of radius ##\rho## is constrained to roll without slipping on the lower half of the
inner surface of a hollow cylinder of inside radius R. Determine the Lagrangian
function, the equation of constraint, and Lagrange's equations of motion. Find the
frequency of small oscillations.
What I am thinking:
Problem: I do not know how to relate the distance traveled by the center of mass of the sphere inside the cylinder.
The sphere has a constraint related to its center of mass and its diameter. If it was in a plane it would be that the distance traveled its equal to the radius times an angle: ## x = \rho\times\theta##. However, the sphere is inside the cylinder...
The sphere is rolling, thus it has kinetic energy. My question is: should I used the time derivative of the angle that I used to relate the motion of the sphere ?
Any help would be appreciated. Thank you!