Publicado
Simulink Debugger: Monitoring Variable Step Solver Performance
A few months ago I introduced my favorite command to analyze the performance of a variable-step solver. This week, I will...
casi 14 años hace
Publicado
Running a Simulation Step by Step
As you probably know, when you simulate a model, there is a lot of stuff going on that you do not see. Yesterday I showed...
casi 14 años hace
Publicado
Sneak Peek: Discover the New Look and Feel of Simulink R2012b
One of the benefits of working at MathWorks is seeing and working with the next release of MATLAB and Simulink before they...
casi 14 años hace
Respondida
Variant subystems with mixed discrete/continuous?
I would be surprised if this is because of the derivative block. Usually, inactive variant should completely disappear. - Ens...
Variant subystems with mixed discrete/continuous?
I would be surprised if this is because of the derivative block. Usually, inactive variant should completely disappear. - Ens...
casi 14 años hace | 0
Publicado
Upgrading Simulink Libraries with Forwarding Tables and Transformation Functions
If you create and maintain Simulink libraries used in many models, or by many people, I think you will like this R2012a new...
casi 14 años hace
Publicado
Breaking up a Stateflow Chart for Collaborative Development
This week I have been experimenting with a feature released in R2010b that I have not used before: Stateflow Atomic...
casi 14 años hace
Publicado
My First Debugging Steps
Seth sometimes tells me: Grab the low hanging fruit. When debugging Simulink models, this means looking at the information...
alrededor de 14 años hace
Respondida
Is it possible to pass a parameter which represents the "sampleTime" at a 2-Level S-function?
IT should be possible to do something like: block.SampleTimes = [block.DialogPrm(1).data 0]; to set the sample from a para...
Is it possible to pass a parameter which represents the "sampleTime" at a 2-Level S-function?
IT should be possible to do something like: block.SampleTimes = [block.DialogPrm(1).data 0]; to set the sample from a para...
alrededor de 14 años hace | 3
| aceptada
Publicado
Why do we need Stiff ODE Solvers?
I hope you have noticed the new MATLAB Central blog: Cleve's Corner. Cleve once said "stiffness is an efficiency issue." ...
alrededor de 14 años hace
Respondida
simscape/simelectronics stepper motor model not compatible with fuzzy logic controller?
As the error says... I recommend looking at the Subsystems Examples. More specificaly, give a look as "sl_subsys_semantics.md...
simscape/simelectronics stepper motor model not compatible with fuzzy logic controller?
As the error says... I recommend looking at the Subsystems Examples. More specificaly, give a look as "sl_subsys_semantics.md...
alrededor de 14 años hace | 0
Respondida
Doubt regrading input as the Acceleration, Velocity and Position to get the desired position i.e. Angle for E.Motor
No sure I understand. Typically, you should have transfer function representing the dynamics of the motor (Input = Volt, Outp...
Doubt regrading input as the Acceleration, Velocity and Position to get the desired position i.e. Angle for E.Motor
No sure I understand. Typically, you should have transfer function representing the dynamics of the motor (Input = Volt, Outp...
alrededor de 14 años hace | 2
| aceptada
Publicado
Creating Your Own Block With Continuous States (MATLAB S-Function)
In a previous post, I showed an example of a MATLAB S-Function with a discrete state This week, we continue in the same...
alrededor de 14 años hace
Respondida
Modelling of Robot contact with object
You have 2 options: 1. You can model only the arm (no wall in SimMechanics). Use a Body sensor to get the pose of the EE in S...
Modelling of Robot contact with object
You have 2 options: 1. You can model only the arm (no wall in SimMechanics). Use a Body sensor to get the pose of the EE in S...
alrededor de 14 años hace | 1
| aceptada
Publicado
Simulink Student Challenge – Targeting Hardware: Win up to $500!
One of my favorite feature in R2012a is the Simulink Support for Target Hardware. Personally, I use it for many purposes....
alrededor de 14 años hace
Respondida
Writing a TLC file
I would start with the documentation page "Inlining S-Functions with TLC": http://www.mathworks.com/help/toolbox/rtw/tlc/bqlc...
Writing a TLC file
I would start with the documentation page "Inlining S-Functions with TLC": http://www.mathworks.com/help/toolbox/rtw/tlc/bqlc...
alrededor de 14 años hace | 0
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Publicado
Writing your own block with discrete states (MATLAB S-Function)
A few weeks ago, I noticed the following question on MATLAB Answers by K E: What are continuous and discrete states in...
alrededor de 14 años hace
Respondida
Loading a Simhydraulic Motor
The doc statement means that the Hydraulic motor itself does not include loads such mass spring and damping. This means that ...
Loading a Simhydraulic Motor
The doc statement means that the Hydraulic motor itself does not include loads such mass spring and damping. This means that ...
alrededor de 14 años hace | 1
| aceptada
Respondida
Single-acting hydraulic cylinder for modeling a fuel regulator system in Simulink
It is very hard to determine a solution with those details. My feeling is that the problem is not with the solver, but with h...
Single-acting hydraulic cylinder for modeling a fuel regulator system in Simulink
It is very hard to determine a solution with those details. My feeling is that the problem is not with the solver, but with h...
alrededor de 14 años hace | 1
Respondida
Pneumatic gas transportation system
What you mention is surprising. If you connect in series a reference, pressure source, an orifice (or pipe) and a reference, the...
Pneumatic gas transportation system
What you mention is surprising. If you connect in series a reference, pressure source, an orifice (or pipe) and a reference, the...
alrededor de 14 años hace | 0
Publicado
THE Most Useful Command for Debugging Variable Step Solver Performance
Today I want to share a trick I often use to determine if a variable step simulation runs as fast as it...
alrededor de 14 años hace
Respondida
Tool for showing difference b/w two simulink model
Simulink Report Generator offers this functionality: http://www.mathworks.com/products/SL_reportgenerator/ See the documen...
Tool for showing difference b/w two simulink model
Simulink Report Generator offers this functionality: http://www.mathworks.com/products/SL_reportgenerator/ See the documen...
alrededor de 14 años hace | 3
Respondida
Running simmechanics in discerete mode
SimMechanics requires a continuous solver. The solver can be variable or fixed step. The fixed-step solver closest to discret...
Running simmechanics in discerete mode
SimMechanics requires a continuous solver. The solver can be variable or fixed step. The fixed-step solver closest to discret...
alrededor de 14 años hace | 2
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Respondida
Simulink - Change continuous state value at a given time point
If you want to generate a "jump" in your continuous state, you must reset the block. This can be done in many ways. For example ...
Simulink - Change continuous state value at a given time point
If you want to generate a "jump" in your continuous state, you must reset the block. This can be done in many ways. For example ...
alrededor de 14 años hace | 0
| aceptada
Respondida
Time values must be monotonically increasing error
Ensure you re 100% sure the value are increasing, for example by validating that each element of "diff(t)" is positive. If th...
Time values must be monotonically increasing error
Ensure you re 100% sure the value are increasing, for example by validating that each element of "diff(t)" is positive. If th...
alrededor de 14 años hace | 1
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Respondida
Goto/From connections cannot cross nonvirtual subsystem boundaries. The only exception is when a goto is connected to a state output port
The error message is clear... don't place GoTo block inside the triggered subsystem and corresponding From block outside. Use...
Goto/From connections cannot cross nonvirtual subsystem boundaries. The only exception is when a goto is connected to a state output port
The error message is clear... don't place GoTo block inside the triggered subsystem and corresponding From block outside. Use...
alrededor de 14 años hace | 3
Publicado
How to make your own blocks with code! (Introduction to S-Functions)
I have to admit... before joining MathWorks, I was afraid of S-Functions. Now this makes me laugh, because I know that...
alrededor de 14 años hace
Respondida
stiffness problem / Trying to use ode1 (Euler) in Simulink
I would verify if the robot starts in a singular configuration. If you invert D, I guess this is because D is the manipulator...
stiffness problem / Trying to use ode1 (Euler) in Simulink
I would verify if the robot starts in a singular configuration. If you invert D, I guess this is because D is the manipulator...
alrededor de 14 años hace | 0
Respondida
Save a value to variable (Simulink)
Use the Selector block: http://www.mathworks.com/help/toolbox/simulink/slref/selector.html You will be able to select rows...
Save a value to variable (Simulink)
Use the Selector block: http://www.mathworks.com/help/toolbox/simulink/slref/selector.html You will be able to select rows...
alrededor de 14 años hace | 1
| aceptada
Respondida
How can I return from simulink to matlab thread?
SIM is blocking, it will return to your script only when the simulation terminates. If you want to start a simulation from co...
How can I return from simulink to matlab thread?
SIM is blocking, it will return to your script only when the simulation terminates. If you want to start a simulation from co...
alrededor de 14 años hace | 1
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Respondida
Hydraulic Gas-Charged Accumulator
The only thing I can guess based on your description is that you have something connected wrong. Did you look at the demo "sh...
Hydraulic Gas-Charged Accumulator
The only thing I can guess based on your description is that you have something connected wrong. Did you look at the demo "sh...
alrededor de 14 años hace | 1