Contact Modelling - Simulink

2 次查看（过去 30 天）
kevin gong
kevin gong 2021-5-13
回答： Steve Miller 2021-6-1
Hi everyone, I am doing a 3D simulation of a flat surface (tray) being driven along by a set of wheels. I have only set ridgid body contact between the wheels (in red) and the bottom of the tray using a 2D circle to finite line Simscape block.
The Problem: The contact surface of the tray does not sit on top of the wheels where i want it. So when the simulation starts, the tray does not move along the spinning wheels as it should.
  1 个评论
Yifeng Tang
Yifeng Tang 2021-5-14
The tags on the question say that you are using R2021a. In this case, the Spatial Contact Force block may be an easier solution here. The limitation is that it only handles convex hull geometries, but if your tray has a flat bottom, it's probably OK.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Steve Miller
Steve Miller 2021-6-1
As Yifeng mentioned, the Spatial Contact Force block supports CAD geometries for MATLAB R2020a and higher.
The Simscape Multibody Contact Force Library, which contains the "2D circle to finite line" block you mentioned, can also work.
Things you need to watch out for:
  1. Initial position of the tray - you probably need to set the Target Position inside the joint that connects the tray to World.
  2. Make sure friction is turned on.
If you upload the model we can take a closer look.
Thanks
--Steve

类别

在 Help Center 和 File Exchange 中查找有关 Applications 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