Is the Matlab magnetic levitation model example correct?
4 次查看(过去 30 天)
显示 更早的评论
Hello.
I don't know what to think. The maglev mathematical equation used in every single Neural Network Toolbox user guide and in the 'maglev' plant model look like this:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/155302/image.jpeg)
But lately, my friend told me that his example (also in Matlab) looked like this:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/155303/image.jpeg)
Moreover, the second equation is the result, other people got when building the equation from scratch.
That leaves me with a question. Which one is correct and why? It is very important thing to me, so if any of you could help me, please do.
Kind regards, Mat.
0 个评论
采纳的回答
Greg Heath
2014-1-20
If you Google
differential equations magnetic levitation
you will find the y^-2 form
Thank you for formally accepting my answer.
Greg
0 个评论
更多回答(2 个)
David Sanchez
2014-1-20
The force experienced by the ball under the influence of electromagnet is given by
F = mg - Kf (i/y)^2
where i is the current in electromagnet (Ampere), y is the distance of the ball from the electromagnet face
Then, the second equation presented by you is the correct one.
0 个评论
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Startup and Shutdown 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!