Question about 'gryscopic' forces

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d3x0r
Posts: 51
Joined: Tue Dec 11, 2012 9:59 pm

Question about 'gryscopic' forces

Post by d3x0r » Thu May 05, 2016 2:17 am

while porting this, and trying to grasp some of the math, especially to do with rotation results of collisions. There are things called 'gyroscopic' as variables, and they refer to the velocity of rotation and acceleration... is there any of the math in there for handling precession; or when applying a force to an axis of a rotating thing that the resulting force is 90 degrees offset from the input?

http://gyroscopes.org/1974lecture.asp

(specifically this area...)
http://www.gyros.biz/lecture/wmv/8.wmv

I don't really know what the math looks like; a good wikipedia article on the math would be nice to have :) Maybe it is there in bullet?

benelot
Posts: 350
Joined: Sat Jul 04, 2015 10:33 am
Location: Bern, Switzerland
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Re: Question about 'gryscopic' forces

Post by benelot » Thu May 05, 2016 9:59 am

For the gyroscopic force, I found this article:
http://www.real-world-physics-problems. ... ysics.html

It should also be in Bullet. Check out the example browser, there is an example on the gyroscopic force. From there you can trace back in the code where the gyroscopic force flags are used and you should find the terms.

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