Can a Free 2 Axis Gyro Model Account for Contact with a Stop?

AI Thread Summary
A free 2-axis gyro model has been developed that includes classical effects and utilizes a magnetized flywheel for spinning and precession. The challenge arises when the non-rotating axis of the gyro contacts a stop, limiting pitch and yaw movements. The discussion focuses on how to realistically model the effects of this contact, particularly in terms of stopping the pitch rotation when precession occurs. The need for a comprehensive source on modeling disturbance torques and cross-coupling in gyros is emphasized. A solution to the modeling challenge is sought to accurately reflect the gyro's behavior upon contact with the stop.
MikeO
Messages
3
Reaction score
0
I want to model a free 2 axis free gyro. I used to have a very detailed model, but cannot find it. It was cross coupled, and included many disturbance torques. All I am looking for is a great source on this topic. Thanks!

Mike
 
Physics news on Phys.org
Hi again. I have managed to put together a gyro model that incorporates all of the classical effects/properties. The flywheel is a magnet so I can spin it and precess it with electromagnetic fields. Works great!

But now I am stuck. Imagine that the axis which the flywheel spins on comes into contact with something (a stop). This is done to keep the gyro pitching and yawing within a limited range. What happens when the non-rotating axis touches the stop? How to model? Clearly, if the gyro was precessing (in pitch), then the pitch body rotation will come to a stop. I am looking for a realistic way to model this.

Thanks
 

Thread 'The Effect of Linear and Rotational Motion on Measured Weight'

Consider an extremely long and perfectly calibrated scale. A car with a mass of 1000 kg is placed on it, and the scale registers this weight accurately. Now, suppose the car begins to move, reaching very high speeds. Neglecting air resistance and rolling friction, if the car attains, for example, a velocity of 500 km/h, will the scale still indicate a weight corresponding to 1000 kg, or will the measured value decrease as a result of the motion? In a second scenario, imagine a person with a...
View full post »

Thread 'Coulomb gauge implies instantaneous radial electric field?'

Scalar and vector potentials in Coulomb gauge Assume Coulomb gauge so that $$\nabla \cdot \mathbf{A}=0.\tag{1}$$ The scalar potential ##\phi## is described by Poisson's equation $$\nabla^2 \phi = -\frac{\rho}{\varepsilon_0}\tag{2}$$ which has the instantaneous general solution given by $$\phi(\mathbf{r},t)=\frac{1}{4\pi\varepsilon_0}\int \frac{\rho(\mathbf{r}',t)}{|\mathbf{r}-\mathbf{r}'|}d^3r'.\tag{3}$$ In Coulomb gauge the vector potential ##\mathbf{A}## is given by...
View full post »

Thread 'Simple thought experiment with Stefan-Boltzmann law: energy'

Dear all, in an encounter of an infamous claim by Gerlich and Tscheuschner that the Greenhouse effect is inconsistent with the 2nd law of thermodynamics I came to a simple thought experiment which I wanted to share with you to check my understanding and brush up my knowledge. The thought experiment I tried to calculate through is as follows. I have a sphere (1) with radius ##r##, acting like a black body at a temperature of exactly ##T_1 = 500 K##. With Stefan-Boltzmann you can calculate...
View full post »

Similar threads

Why is it so much easier to lift a spinning gyro than if stationary?
2
Replies
67
Views
23K
I Modeling a (rotating) mass impact on a preloaded (rotational) spring
Replies
3
Views
1K
Gyroscopic Water Wave Energy Converters
Replies
15
Views
2K
A Modeling the damping of a physical rigid pendulum
Replies
1
Views
2K
I Atmospheric Density vs Altitude in an O'Neil Cylinder
Replies
1
Views
3K
ABC reference frame synchronous generator modelling in Ltspice
Replies
1
Views
3K
It's me-- TK (hello Folks)
Replies
4
Views
632
Torque calculations: Rotating vertical shaft
Replies
5
Views
5K
I The standard model from loop quantum gravity via spinors octonions
Replies
26
Views
5K
I New muon g-2 calculation consistent with experiment
Replies
0
Views
3K

Hot Threads

Recent Insights

Back
Top