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## Simscape Multibody Belts and Pulleys Examples

version 1.2.0.0 (5.64 MB) by Steve Miller

### Steve Miller (view profile)

Belt and pulley mechanisms modeled in Simscape Multibody

Updated 09 Oct 2018

This file contains example models that showing how to model mechanisms with belts and pulleys using the new belts and cables library in Simscape Multibody. It includes systems such as block and tackle, non-planar mechanisms, and a tower crane with a trolley and hoist.

See how to define bodies in Simscape Multibody by watching this video (5 min):
https://www.mathworks.com/videos/defining-rigid-bodies-68845.html

https://www.mathworks.com/videos/multibody-simulation-with-simmechanics-81877.html

Find other Simscape examples by searching posts for the keyword "physical modeling"
https://www.mathworks.com/matlabcentral/fileexchange/?term=%22physical+modeling%22

https://www.mathworks.com/physical-modeling/

cindy lemoine

### cindy lemoine (view profile)

Steve,
Is there a way to model pulley cable friction?

LD Wang

Yee Wei Law

### Yee Wei Law (view profile)

Hi Steve, fantastic example!

I've been trying to use your sm_block_and_tackle example as a basis for a problem involving three blocks-and-tackles lifting a tray-like load. Do you have a suggestion on how to model the joints between the tray-like load and the three blocks-and-tackles? Spherical joints trigger the error "kinematic constraints cannot be maintained". Real-world experience suggests the tray-like load should be capable of all yaw, pitch and roll (i.e., 3 degrees of freedom), under the pull of the three blocks-and-tackles, so there should be a way to model it.

Yee Wei Law

LD Wang

### LD Wang (view profile)

 27 Sep 2018 1.2.0.0 Added links to models within Simscape Multibody. Starting with R2018b, all examples ship with the product. 27 Mar 2018 1.1.0.0 Added parameterized pulley in a library; added example Cable-Driven XY Table with Cross Base. 19 Mar 2018 1.0.0.0 Adjusted mask image.
##### MATLAB Release Compatibility
Created with R2018b
Compatible with any release
##### Platform Compatibility
Windows macOS Linux
##### Acknowledgements

Inspired by: Simscape Multibody Parts Library