Yifeng Tang

MathWorks

Last seen: 3 days ago | Active since 2020

Followers: 2 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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Answered
Gas-Isothermal Liquid Model is not working
The model architecture is OK but some parameters need some efforts. I attached a modified model and it seems to run OK. The ma...

9 days ago | 1

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Answered
How to set multiple coordinate systems at specified locations in a Brick Solid block
The origin of "new frame" on the solid itself has three options, but it won't allow you to specify an arbitrary point, which I u...

10 days ago | 1

Answered
Challenge with Simulating Loader Mechanism with Closed Kinematic Loop
Hi @Medalan Thanks for the clarfication on your question. Let's see if this idea helps. I created two simple models to demons...

20 days ago | 0

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Answered
Signal Routing in Simscape
Hi Paul, I think we can achieve what you envisioned not with a switch of joints but with a "hard-stop". I created a 1D Simscap...

20 days ago | 0

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Answered
Jacobians using Simscape (numerical or symbolic)
The Jacobian of the system of equations is formulated by the solver, but I don't think it's available explicitly in any form. I...

20 days ago | 0

Answered
Inputs and process for thermal model discretization for battery spatial temperature estimation
If you are thinking about running the ANSYS simulation and Simscape at the same time, with some kind of interface to pass along ...

20 days ago | 0

Answered
How to model the battery module with forced air cooling in Simscape?
Something like this should work. Well, reasonable parameters are really what will make it work :)

25 days ago | 0

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Answered
[Thermal Liquid library Simscape] Help for an Engine cooling model
Copied from the comment section: I changed pressure_sidepods from 500 to 2000 and did observe change in the coolant temperature...

1 month ago | 0

Answered
Direction of force input for a prismatic joint
Yes, you are correct. When you provide a negative value for the actuation force, it's applied in the opposite direction with th...

1 month ago | 0

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Answered
How to create a Simscape custom component with 2 different thermal liquids?
Hi Jérémie, The error was complaining about that two stream of fluids are mixing into each other inside your heat exchanger :p ...

1 month ago | 2

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Answered
How do I get the right vector of spring coefficients for the nonlinear translational spring?
Hi Emefun, A couple of things to fix: (1) add mass blocks. The "dynamic variable derivatives" error is most likely referring ...

2 months ago | 0

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Answered
Are Flooded Evaporators modeled already?
Hi Pablo, To the best of my knowledge, there isn't a block designed specifically for this type of heat exchanger, with coolant/...

2 months ago | 1

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Answered
Add "Block Parametrization Manager" to custom ssc block for Simscape
It's not supported for your use case here. Consider put together a custom Simulink library instead, where you can store and loc...

2 months ago | 0

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Answered
Simulation of two phase fluid with Simscape - pressure behavior unexplicable
Hi Marcel, The port area parameter of the Receiver Accumulator block doesn't affect the pressure drop between inside and outsid...

2 months ago | 0

Answered
MATLAB/Simulink/Simscape:Contact force analysis
You can only to "Convex Hull" for generic geometry (e.g. a stp file). It may or may not be good enough for your contact force m...

3 months ago | 0

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Answered
The Excavator Hydraulic Jack Forces are Changing Direction in Simscape Multibody
The way the joints are actuated and the joint forces are sensed for inverse dynamic analysis looks OK. As a position signal is ...

3 months ago | 1

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Answered
Fluid inertia in Simscape hydraulic
Hi Amodio, I don't think the actuator blocks model the inertia of the fluid inside. The "cushion" can be used to model some en...

3 months ago | 0

Answered
Center of mass of a free-floating body in Simscape Multibody is moving with no external forces
I believe there can be many solutions that would satisfy the initial conditions you have set. The only target set here is the s...

3 months ago | 0

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Answered
Flow rate discrepancy between upstream and downstream of orifice model.
A diffential pressure 2950 psi sounds big enough to change the density of the fluid. As the density changes, volumetric flow ra...

3 months ago | 0

Answered
Simscape Fluids model of closed system
Hi Jeremy, Looks to me like an initialization issue. I don't have R2020b on my computer so I tried this on R2021b, the oldest ...

3 months ago | 0

Answered
How to make a revolute joint turn in one direction in Simscape?
There may be better solutions, but just some ideas. If you have access to Simscape Driveline, there is a one-way clutch (Unid...

3 months ago | 0

Answered
Pressure drop of a two-phase fluid pipeline in simscape
You can view the Simscape code of the Pipe (2P) block, save a copy, and modify it to use a custom correlation if you like. Find...

3 months ago | 0

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Answered
Can "pipe(G)" block be used to model forced air convection?
I think it's possible. The combination of cross section and hydraulic diameter will give you a circumference; that multiplied b...

3 months ago | 0

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Answered
HOW CAN I TURN AN EQUATION INTO COMPONENT IN A LIBRARY?
Hi Usha, In addition to Ayush's answer, I suggest that you look at the source code of a translational spring block. You custom...

3 months ago | 1

Answered
How does simscape caculate the hydraulic pressure?
The pump blocks in Simscape Fluids models the flow rate at different pressure difference and speed, but themselves are "volume-l...

3 months ago | 0

Answered
state flow入门之旅中的诸多疑问
应该是workspace的问题，红色阴影表示有缺失的参数值。Simulink模型的参数可能在 Base Workspace, Model Workspace 或者是 mask local workspace (你这里不会是最后这个情况)，可以参考这个文档：...

3 months ago | 0

Answered
Use Simscape parameter as variable in Simulink model
If it's in the Simscape Results Explorer, you should be able to use a Probe block to make it available during simulation as a Si...

3 months ago | 0

Answered
Using the TL-2P heat exchanger in simscape to simulate an external threaded tube heat exchanger
The way you set up the heat exchanger looks promising to me. I would use the Parameter Estimator App (Documentation) to estimat...

3 months ago | 0

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Answered
why are the results different from moist air domain(MA) using only dry air and gas domain(G)? - simscape
Hello, Given the range of temperature you'd like to implement, I believe you are seeing the difference in the way the specific ...

4 months ago | 1

Answered
The sum of the 2 branches flow is different than pump flow
Hi Flavio, I looked at the model and below are my observations. the parameters and inputs for the pump look ridiculous: at 1m^...

4 months ago | 2

| accepted

Yifeng Tang

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