How can I make an elastic pendulum using Simmechanics 2nd generation

4 次查看（过去 30 天）
Jan Balajka
Jan Balajka 2014-11-12
评论： Jan Balajka 2014-11-13
How can I define a pendulum suspended on an elastic rope in 3D using blocks from SimMechanics 2nd generation? It should have the ability to swing like a pendulum in 3D (spherical joint) and oscillate like a vertical spring oscillator at the same time. Thanks for suggestions!

请先登录，再回答此问题。

采纳的回答

Manuel
Manuel 2014-11-12
Hi Jan,
You can do that by introducing a prismatic joint on your pendulum and specifying internal mechanics with some spring stiffness. You can look at the doc of the prismatic joint: http://www.mathworks.com/help/physmod/sm/ref/prismaticjoint.html
Regards Manuel
  1 个评论
Jan Balajka
Jan Balajka 2014-11-13
Thank you, that was helpful. However I didn't understand how to set correct equilibrium length in internal mechanics of the prismatic joint. If I set it to zero the two bodies coincide, if I set it to some value, the direction is undefined and the suspended body starts flying around the fixed one. Therefore I started using prismatic joint with all values set to zero and rigid transform of the desired spring length in series. In parallel to these two I put spring&damper force where I set the correct spring parameters. It is perhaps not the nicest solution but it seems to work. Thanks, Jan

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Assembly 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by