Answered
How to change the direction of rotation of gears in revolute joint block by giving torque inputs?
Hi Shravista, If you change the sign of the torque that actuates a joint, it will actuate the joint in the opposite direction. ...

2 months ago | 0

Answered
How to make two planes perpendicular in Simscape Multibody?
Hi Nikola, I think you are trying to constrain the body of the vehicle so that it can roll (rotate about its longitudinal axis,...

2 months ago | 0

Answered
how can i model a spring that has reached its free lenght in simscape multibody?
Hi Alejandro, You can model the spring using the "Internal Mechanics" settings of a prismatic joint, and you can add a hardstop...

2 months ago | 0

Answered
Force emitted from one solid only effecting a certain area of another object (Simscape Multibody)
Hi Sam, It depends what assumptions you are making: Can part B only move along an axis? 2 axes? Can it rotate? Is part B ri...

2 months ago | 0

Answered
Select the type of joint between a multibody system and the world with a variable from the workspace
The most common way to do this is using Variant Subsystems. You add a Variant Subsystem to your model. Inside that Variant S...

2 months ago | 0

Answered
Geometric feature shows centroid instead of centre when modelling frame origin of STEP file
Hi Lai Chung Kwan, If the geometric feature you have selected doesn't pick the location you want, you can pick another one. ...

2 months ago | 0

Answered
How to update mechanics explorer live
Hi vc ch, I have added an example that shows connecting a slider bar to a Simscape Multibody model in this MATLAB Answers post....

2 months ago | 0

Answered
How to change Simscape Multibody model parameter during simulation
Hi Mark, There are variable solid blocks in Simscape Multibody. https://www.mathworks.com/help/physmod/sm/ref/variablebricksol...

2 months ago | 0

Answered
my trial period was extended. I reactivated it, but it keeps coming up with activation screen.
Hi - you need to contact technical support for this issue. --Steve

2 months ago | 0

Answered
How to using slider bar to control joint?
Hi Yuttana, You can use a slider to control a joint. Attached to this answer is sm_four_bar_slider.slx where the crank angle i...

2 months ago | 0

Answered
Simscape Multibody - Error "Model not assembled due to a position violation" when I change the value of the actuation input of a RevoluteJoint
Hi Salih The joints you have in your model (all revolute joints) require that the upper angle of each arm all be actuated to th...

2 months ago | 0

Answered
How to model a Peaucellier Straight line mechanism on Simscape/Simulink?
Hi Sumedh, Thanks for the great question - this is an interesting mechanism. Attached to this answer is a model in Simscape Mu...

2 months ago | 0

| accepted

Answered
SimScape Multibody - variable velocity in spur gear simulation
Hi Robert, The oscillations you are seeing are very, very small in magnitude. Here are some possibilities: The center of mas...

2 months ago | 0

Answered
Interface Simscape Multibody with 1D transnational or rotational domains
Hi all, In R2021a we added interface blocks to more easily connect Simscape Multibody joints to 1D mechanical Simscape networks...

2 months ago | 0

Answered
Multibody Hydro-Mechanical Converter does not convert vice-versa
Hi Lucas, Your model is pretty close to correct. It is missing a Mechanical Translational Reference frame. In R2021a we added...

2 months ago | 0

Answered
Error when running a satellite model with a 6 DOF joint (simscape multibody)
It appears your model uses a MATLAB expression in the 6-DOF Joint that does not produce an answer compatible with the parameter ...

2 months ago | 0

Answered
Simscape Multibody from Solidworks Assembly
You would have to choose which assumptions to make to model this system. I would suggest putting a spherical joint with joint l...

2 months ago | 0

Answered
Error of smimport xml file
Hi Eleni, I have never seen this error. I would guess the XML file is somehow corrupt or that you have two versions of the fil...

2 months ago | 0

Answered
Model conversion, Can export Multibody Model to Solidworks?
Hi Victor - there isn't an automated way to export an entire Simscape Multibody assembly to SolidWorks. Data for certain parts ...

2 months ago | 0

Answered
Modelling a galaxy with Simscape Multibody
Hi Arpad, > However, I would like to change this simulation to simulate a galaxy instead (with e.g. 400 stars orbiting), is thi...

2 months ago | 1

Answered
How can i accurately sense the torque of a revolute joint whose input is position?
Hi Prithvi, If you configure your joints to take the motion as an input and to automatically calculate the required torque, you...

2 months ago | 0

Answered
What is a possible "Unexpected Error" during the installation of Simscape Multibody?
You will need to contact technical support with the specifics of your installation program. --Steve

2 months ago | 0

Answered
How can I create an app that manipulates simulink files without needing to copy the app into every project I use it for?
Hi Isaac, > the app's designated folder becomes the go-to location for autosaves etc MATLAB has preference settings for autosa...

2 months ago | 0

Answered
Multi Objective Vehicle Suspension Optimization Problem
Hi Matthew, There are a lot of questions in your post. One good example to look at is this one: https://www.mathworks.com/mat...

2 months ago | 0

Answered
Good evening! Is there an example Simscape Multibody model moving a point along a curve?
Hi - looks like you found the answer to your question: https://www.mathworks.com/help/physmod/sm/ref/pointoncurveconstraint.htm...

2 months ago | 0

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Answered
Generate a simscape model by importing 'sawyer.urdf' using smimport().
Hi Tangzhong - the URDF file is refering to .DAE files which Simscape Multibody cannot use for visualization. If you can conver...

2 months ago | 0

Submitted


Hybrid-Electric Vehicle Model in Simulink
Model of a parallel-series hybrid-electric vehicle with system-level and detailed variants of electrical system.

2 months ago | 173 downloads |

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Answered
Simscape R2020a multibody block "spatial contact force" does not work properly for the contact of a hollow cylinder with its piston!
Hi Victor: 1. Why does the simscape R2020a multibody block with "spatial contact force" not work properly for the contact of a ...

2 months ago | 0

| accepted

Answered
Query About Contact Force Modeling
Hi Ankush, You can turn off this error message - it has no effect on the accuracy of the model. Please see this MATLAB Answers...

2 months ago | 0

Answered
Does simscape support to model parallel robots.
Yes! You can model all kinds of parallel robots. There is a shipping example of a stewart platform - see online documentatio...

2 months ago | 0

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