Simscape end mass swings in the opposite direction

2 次查看（过去 30 天）
Ranjit Roshan
Ranjit Roshan 2023-2-27
评论： Ranjit Roshan 2023-4-16
I have a crane model. In this model, when the crane starts compressing, the free mass at the end connected with a revolute joint is supposed to swing backwards, instead it swings in the forward direction. Can someone tell why this is happening?
Video link: https://drive.google.com/file/d/1-EjRv1avRLYaQ4FSAGPJTM-PEhSK0CDO/view?usp=sharing

请先登录，再回答此问题。

采纳的回答

Steve Miller
Steve Miller 2023-3-12
Without looking at the model directly, it is hard to say for sure.
Some possibilities:
  1. The start of the motion is extremely abrupt, jerking the mass forward with a high acceleration and then slowing down to steady state speed. The crane is then actually slowing the mass down, causing it to swing forward.
  2. The CG of the block is above the point where it is attached to the rod AND a rotational spring is holding it in it its current position.
--Steve
  1 个评论
Ranjit Roshan
Ranjit Roshan 2023-4-16
Thankyou, the problem was actually the first point, I had provided all the derivates till acceleration as inputs and the start of the motion was exteremely abrupt. So once I just changed it to follow a just distance setpoints, it started functional normally.

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 Simulation and Analysis 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by