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Martin


MathWorks

43 total contributions since 2011

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Answered
Is it possible to debug .ssc of simscape while simulation is running?
Hello Omprakash, I key distinction with Simscape is that it uses acausal modeling. This means that the equations written in a...

2 meses ago | 0

Answered
can Simscape two phase flow components deal with air / water mixtures?
Hi Xilin, You can try to use the Moist Air domain. This domain is nominally set with dry air, water vapor, and a trace gas. T...

2 meses ago | 0

Answered
Error with Magic Tire formula from Simscape Driveline " Nonlinear Solver:"
Hi Gary, My intuition says that once the torque breaks the friction, there is nothing to stop the tire from spinning freely. ...

2 meses ago | 0

Answered
variable nonlinear spring & damper
Hello Harsh, They are in Simscape Driveline. Go to Couplings & Drives, then Springs & Dampers. There you will find nonlinear,...

2 meses ago | 0

Answered
what unit does simscape engine fuel consumption output
Hello Angus, The FC port outputs the fuel consumption rate in kg/s. Martin

2 meses ago | 0

Answered
Simscape- Moist air error. Temperature at port B must be less than or equal to Maximum valid temperature.
Hello Sachin, One possibility is that the constant flow rate is causing a pressure rise in the Constant Volume Chamber. As th...

7 meses ago | 0

Answered
Why does my acceleration signal from simscape looks so weird?
Hi Rik, Numerical derivatives are inherently noisy, and subject to spikes due to time step differences, jumps in the solution...

7 meses ago | 0

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Answered
PS Divide, Accelaration, Feedback
Hello Vitali, It is possible that the rotational motion sensor is giving a value of 0 to the PS Divide block. Have you set th...

7 meses ago | 0

Answered
Generic engine won't start with new parameters
Hello Sandeep, The engine is may not be producing torque as it may have stalled. Just as with a real engine, when the speed is ...

10 meses ago | 0

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Answered
Simscape driveline piston model
Hello Matthew, You could consider taking a look at sdl_engine_testbed. It has three Piston Engine blocks. When the Piston Engin...

10 meses ago | 0

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Answered
how to control variable ratio gearbox \\ need gear ratio to be changed continuously as per requirement \\ i use student version of matlab and have simscape driveline
Hello Vaibnhav, The Variable Ratio Transmission in the Couplings sublibrary of Simscape Driveline might meet this need.

10 meses ago | 0

Answered
What time constant stands for in generic engine block ?
Hello Andreas, The time constant refers to the delay between throttle variation an engine output power.

10 meses ago | 0

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Answered
How can I model a time dependent "specific heat" in a simulink/simscape Gas Properties Block?
While this would be challenging with the Gas domain, consider using the Moist Air domain. While the name is Moist Air, it is ess...

alrededor de 1 año ago | 1

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Answered
Can I model systems with temperature over 373k in Simscape Thermal Liquid tool?
There is no limit to the temperature allowed in the thermal liquid domain, regardless of whether used with purely Foundation Lib...

alrededor de 1 año ago | 0

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Answered
I have created a hydraulic hybrid system in simscape. The model is running smoothly without any errors but the engine block is not giving any power or rpm even at full throttle, hence all the scopes are showing zero reading or close to it. What to do
Does the engine start at no speed? It could be that it is stalling. Start the engine at a higher speed, or add external torque t...

alrededor de 1 año ago | 0

Answered
Difference between a Physical connection and Flexible shaft while connecting SimDriveline blocks?
If blocks are directly connected, there is no stiffness, damping, or inertia between the components, and their connected ports w...

alrededor de 1 año ago | 0

Answered
Why mass block have no effect on double acting hydraulic cylinder dynamics?
It is possible that the mass is being directly driven with an ideal velocity source or the cylinder with an ideal flow source. A...

alrededor de 1 año ago | 0

Answered
Variable fluid properties in Simscape
Use the Thermal Liquid domain to model systems with fluid properties that depend on temperature and pressure. Basic blocks are a...

alrededor de 1 año ago | 0

Answered
Translational Hydro-Mechanical Converter with variable area.
Parameters are fixed during compilation, therefore the definition area = AR is not valid. In the Foundation Library block, it pi...

alrededor de 1 año ago | 0

Answered
Simscape Hydraulics mass flow rate vs pressure drop
Please try the block Fixed Orifice Empirical. In this block, you can specify a table of pressure differentials and flow rates.

alrededor de 1 año ago | 0

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Answered
How can i model the engine starting behavior in simulink with Generic engine block and motor? Can anyone provide an expert opinion on this?
The best way to model something like this is to think about what happens in the real system. So far, it sounds like a good start...

alrededor de 1 año ago | 0

Answered
Pneumo-Hydraulic Actuator ports
As of R2015b, the Pneumo-Hydraulic Actuator can be used with one or two mechanical ports. If using one port, the cylinder is ass...

alrededor de 2 años ago | 0

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Answered
Horizontal reaction force wrong?
Your formulation for Fh is correct, and that is what is used in the Translational Detent.

alrededor de 2 años ago | 0

Answered
Inertia is changing with time , how ı can model in simdriveline
In R2015b, Variable Inertia and Variable Mass blocks were added to Simscape Driveline. Please see the block reference page for t...

alrededor de 2 años ago | 0

Answered
Tire (Friction Parameterized)
The issue is that the system had an underspecified initial condition, and the tires were not able to find the right solution. In...

alrededor de 2 años ago | 1

Answered
Why does my simulation model, using SimDriveline, keep giving me errors regarding the Generic engine?
The Generic Engine will issue an assertion terminating simulation if the speed is too high. This is as if a real engine exceeded...

alrededor de 2 años ago | 0

Answered
How to set variable wheels for front and rear in simdriveline vehicle body
Starting in R2015b, the Vehicle Body block allows the two axles to have different numbers of wheels. If the Number of wheels per...

alrededor de 2 años ago | 0

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Answered
Vehicle Body Block - Additional Port?
Adding additional forces and effects can be done either in the code of a component or in the model. Depending on what forces you...

alrededor de 2 años ago | 0

Answered
Question about solver in Simscape
This could be a number of things. Basically, the solver is telling you that it cannot successfully solve the system of equation...

más de 6 años ago | 0

Answered
Editing Simdriveline Block Code
You are correct that the source is available now for all Simscape foundation library blocks, but it is not for the add-on produc...

más de 6 años ago | 0

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