Yifeng Tang

MathWorks

Last seen: Today | Actif depuis 2020

Followers: 12 Following: 0

Programming Languages:
Python, MATLAB, Fortran
Spoken Languages:
English, Chinese
Pronouns:
He/him
Professional Interests:
Physical Modeling, Simscape Fluids, Simscape, Heat and Mass Transfer, Thermodynamics and Heat Transfer

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Réponse apportée
Simulation of BLDC Motor - error with derivative of omega
Hi Marcel, I'm NOT an expert in BLDC motor but I'm in general interested in Simscape language and customization. Could it be a...

8 jours il y a | 0

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Réponse apportée
How Hydrogen pressure increase to 3MPa without compressor in this control?
As hydrogen is produced at the Cathode from the electrolysis process, the pressure in the upstream volume will increase. This c...

8 jours il y a | 0

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Simscape Inheritance - Parameters as structs or objects
I think it's possible to mimic the code inside Thermal Liquid Properties to do what you envisions. (1) define a class for the d...

25 jours il y a | 0

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How to build up a motor that controls the speed of an centrifugal pump through an ideal torque source?
Hi Malte, In your model right now the torque source R port is also connected to the mechanical reference (ground), so no moveme...

25 jours il y a | 0

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How to Set Initial Position for a Mass Block in Simscape?
Hi @José, In the mechanical translational domain, the domain variables are the velocity and the force. In general, the displac...

environ un mois il y a | 1

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Problem with two phase Fluid Tables properties for mixtures for Simscape Matlab using CoolProp
Hi Adam, I think there is path forward, but it'll require some work. The error message you and I saw was generated by the fact...

environ un mois il y a | 0

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How to protect a model with simscape interfaces?
Hi @Carolina, As Model Reference and Model Protection won't allow physical connection through the subsystem/model boundary, it'...

environ 2 mois il y a | 0

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How to export data logging in Simcape simulation by second?
First thing to check, whether you are limiting the number of data points to keep. I suspect so, as your tout variable has lengt...

environ 2 mois il y a | 0

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How to add functionality to simscape multibody?
Hi Mark, Simscape Multibody, unfortunately, can't be customized in the same way as other physical domains in Simscape. I would...

environ 2 mois il y a | 0

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I need help coding a custom block on Simscape
This compiled without an error component pelton_turbine % Ce composant calcule le couple généré par l'eau sur la turbine. % 🔹...

environ 2 mois il y a | 0

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In Simscape, is there an equivalent to the Two-Phase Fluid System components that support Phase-Change-Materials (solid-liquid-transition)?
Hi @Philipp, I attached a simple proof-of-concept. The mlx script add an offset to the u(T) property after T is greater than t...

environ 2 mois il y a | 0

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Orifice (2P) Parametrization and Control
Hi @Rinaldo Is S a physical signal between 0 and 1, no units (unit = 1)? S is a position input, with a length unit (m, cm, m...

environ 2 mois il y a | 0

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I have a subsystem in Simulink with LConn and RConn blocks, some from Simulink Electrical and others from Simscape. How can I retrieve their type info from MATLAB?
I think this will help: myBlock = 'example/Subsystem'; port_handles = get_param(myBlock,"PortHandles") inports = port_han...

environ 2 mois il y a | 0

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I added a constant heat flow source to the pipe but I couldn't see any temperature increase to the fluid which flows
This should work fine. This is how heat is added to the coolant in some examples in the Documentation as well, like Electric Ve...

environ 2 mois il y a | 0

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Issue with Basin Level Fluctuation After Parallelizing Cooling Towers in MATLAB Data Center Cooling Example
It looks like those two T-junctions are creating different flow resistance into the two towers. As a result, the inflow can flu...

2 mois il y a | 0

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Load simulation state in Simulink Coder generated C code
Hi @Zoltán Runyó, I think it's possible to do what you are envisioning using "Simulink Parameters" in the initial conditions. ...

2 mois il y a | 0

Réponse apportée
Error in the Documentation and Modeling of the Polytropic Process in Positive Displacement Compressors
Hi @ROBERTO, This looks like an error in the documentation to me right now. I measured a few more quantities from the model. ...

2 mois il y a | 0

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How can I properly include the effect of wall thermal in the geometry based Condenser Evaporator (2P-MA) block?
Hi Roberto, The R2025a release (still in pre-release as of 3/7/2025) now has wall-thermal mass as an option for several geometr...

2 mois il y a | 0

Réponse apportée
Convert a 2013a multibody model to 2022b
Looks like some of the frames need a rotation. I'm not sure about what mechanism you are trying to model, but right now, the th...

2 mois il y a | 1

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Réponse apportée
How to control pressure gain and mass flow with Fixed Displacement Pump
Hi Nadir, From you model, I measured of 9.2MPa. This is consistent with the formula you showed. I believe when you put in th...

2 mois il y a | 0

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How can I reduce excessive bouncing in my small quadruped Simulink model using Spatial Contact Force settings while joints run in position mode?
I use the following guideline when parametrizing "hard-stop" in hydraulic components (like a cylinder). You may find this simil...

2 mois il y a | 0

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Réponse apportée
Modelling multistage expansion of compressed air in a single cylinder engine
Hi @Kyle I feel like the model should look similar to that diagram you have. Single-cylinder engines can be modeled using a Me...

3 mois il y a | 0

Réponse apportée
Linking Mechanical and Hydraulic System Model in SIMSCAP MATLAB
The Translational Multibody Interface was first available in R2021a. Prior to that, such interface can be doen using force sens...

3 mois il y a | 0

Réponse apportée
Adding input for valid parameter in Simscape block
Hi @Florian, I think it's possible. The Simscape code of this block is visible. You may find it in the Description tab of the...

3 mois il y a | 0

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Modelling a Dehumidifier with Simscape Fluids System Level Heat Exchanger(TL-MA) not possible?
The error is complaining that the parameters you've set don't make sense :p For example, you've set the operation condition to ...

3 mois il y a | 1

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Réponse apportée
On how to use the Two-Way Connection Block
Hi @CAME, I've seen this in earlier version of Powertrain Blockset examples. I took some snapshot from this "Conventional Vehi...

3 mois il y a | 0

| A accepté

Réponse apportée
Model leaks in tanks and valves in a gas SIMULINK system
(Moved to Answer from Comments) It sounds like you have some values as a "standard" leak rate, is that right? I would assume y...

3 mois il y a | 0

Réponse apportée
Bonjour, je souhaite modéliser un piston et j'ai une erreur. Merci
In your model, the B & F ports of the prismatic joint is connected to the B & F port of a rigid transform block. This will fix ...

3 mois il y a | 0

Réponse apportée
PEM fuel cell heat management
Looks like it should be instead. Would you agree? I checked the source code and the power dissipation term is calculated as ...

3 mois il y a | 1

Réponse apportée
Trace Gas Removal Loop
Hi Ryan, The logic you have in mind is likely to trigger lots of zero-crossing/chattering, and as @Walter Roberson pointed out,...

3 mois il y a | 1

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