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Yifeng Tang

MathWorks

Last seen: 2 Tage vor Aktiv seit 2020

Followers: 13   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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Beantwortet
Simscape Fluids - 2 resevours, 1 flow rate source model results in pressure below allowed minimum.
Looks like a parametrization issue to me. In your model, the pressure at the inlet (point 1) is fixed by the upstream reservoir...

27 Tage vor | 0

| akzeptiert

Beantwortet
Can the PEM Fuel Cell Simscape model be scaled down to 100 W?
I can share a case study where the original model is scaled UP by 4 times, to around 400kW. Maybe you can repeat the workflow f...

etwa ein Monat vor | 1

Beantwortet
Control of dehumidifier with system level heat exchanger
Summarize the information exchange in the "Comments": Changing the "nominal rate of heat-transfer" is like change the heat exch...

etwa ein Monat vor | 0

| akzeptiert

Beantwortet
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...

2 Monate vor | 0

| akzeptiert

Beantwortet
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...

2 Monate vor | 0

Beantwortet
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...

3 Monate vor | 0

| akzeptiert

Beantwortet
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...

3 Monate vor | 0

Beantwortet
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...

3 Monate vor | 1

| akzeptiert

Beantwortet
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...

3 Monate vor | 0

Beantwortet
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'...

3 Monate vor | 0

Beantwortet
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...

3 Monate vor | 0

Beantwortet
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...

4 Monate vor | 0

Beantwortet
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. % 🔹...

4 Monate vor | 0

Beantwortet
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...

4 Monate vor | 0

Beantwortet
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...

4 Monate vor | 0

Beantwortet
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...

4 Monate vor | 0

Beantwortet
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...

4 Monate vor | 0

Beantwortet
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...

4 Monate vor | 0

Beantwortet
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. ...

4 Monate vor | 0

Beantwortet
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. ...

4 Monate vor | 0

| akzeptiert

Beantwortet
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...

4 Monate vor | 0

Beantwortet
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...

4 Monate vor | 1

| akzeptiert

Beantwortet
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...

4 Monate vor | 0

Beantwortet
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...

4 Monate vor | 0

| akzeptiert

Beantwortet
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...

4 Monate vor | 0

Beantwortet
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...

5 Monate vor | 0

Beantwortet
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...

5 Monate vor | 0

| akzeptiert

Beantwortet
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 ...

5 Monate vor | 1

| akzeptiert

Beantwortet
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...

5 Monate vor | 0

| akzeptiert

Beantwortet
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...

5 Monate vor | 0

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