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J Chen


Last seen: 2日 前 2019 年からアクティブ

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Communicating Simscape multibody with temperature and pressure sensors
Simscape Multibody doesn't deal with heat and temperature. You need to build a thermal model either with the Thermal Library in ...

24日 前 | 0

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how to attach custom frame to cylindrical solid
You can use the Rigid Transform block as an alternative.

約2ヶ月 前 | 0

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Extract Spring data from the revolut joint
Expand the Sensing fiels and check the position. A port will appear to output the position. Use a PS-Siumulink Converter block i...

約2ヶ月 前 | 0

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ssc_mass_spring_damper_control example, all forces become 0 when no feedback?
The mass is stationary and the spring and damper generate no force at time zero. No force is applied to the mass if the PID is r...

約2ヶ月 前 | 0

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Is there any two wheeler drive cycle file in MATLAB or simulink?
You can download the speed profile in Excel at (https://cleanfuturemobility.com/driving-cycles/) and import it into Matlab/Simul...

2ヶ月 前 | 0

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SIMSCAPE MULTIBODY: Apply Forces / Sense velocity of GLOBAL Center of Mass
First add a new frame to the Center of Gravity (CoG). Connect a 6 DoF Joint between the new frame to the World Frame. Specify ...

2ヶ月 前 | 0

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How to get the coordinates of points in the simulink multibody model?
You can add a Transform Sensor to your system.

4ヶ月 前 | 0

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How to loop a model's output back to the input untill they both converge
Use a Delay block https://www.mathworks.com/help/simulink/slref/delay.html

5ヶ月 前 | 0

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(Simscape multibody) Is there any way to use a specific angle as a input for revolute joint?
Set the Actuation tab as follows: Torque - Automatically computed, Motion - Provided by Input. You also need Simulink-PS Convert...

6ヶ月 前 | 0

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Generic Engine stalling when load applied
You need to specify an initial speed for the propeller. It is done in the Variables tab of the Propeller Inertia block.

6ヶ月 前 | 0

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Simscape Results Explorer not showing entire simulation data
Select Model Settings tab. Click Simscape. Uncheck "Limit data points" box.

6ヶ月 前 | 0

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Can I read voltage and current measurement from simulink model that containts a model of connections in Arduino Uno?
Use the Analog Input block froo the Simulink Support Package for Arduino.

6ヶ月 前 | 0

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Simscape vehicle body incline angle
Connect a Simulink signal source block through a Simulink-PS Converter block (in Simscape-Utilities) to the beta port.

7ヶ月 前 | 0

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How to measure output torque of a gear in simscape multibody?
Choose the Total Torque in the Composite Force/Torque Sensing tab.

8ヶ月 前 | 0

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How to visualize movement that occurred by reaction force with Simscape multibody?
The grey cube should move if it is not fixed and connected to the arm through a revolute joint. The motion maybe too small for y...

8ヶ月 前 | 0

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Cannot find "body" block on Simscape
No sure what is the Body block in R2017. You can find Mass and Inertia blocks in the Simscape Foundation Library - Mechanical - ...

8ヶ月 前 | 0

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質問


PID Tuner couldn't find a stabilizing controller
The PID block in the attached Simulink file stabilizes the plant (the plant is defined in the call back). However, the PID Tuner...

8ヶ月 前 | 0 件の回答 | 0

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回答

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How to rotate an image in Matlab
You basically read the image into a matrix, then change the array element to a different location (swich row to column, etc.)

9ヶ月 前 | 0

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Clock on Mechanics Explorer Video
A simple solution is to do a screen recording that includes the Time display at the bottom of the Mechanics Explorer. Powerpoint...

9ヶ月 前 | 0

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Automaticly change of actuation of joints in Simscape multibody.
Use name = gcb to get block names (select a block first) Use get_param(name,'DialogParameters') to get parameter names. The par...

9ヶ月 前 | 1

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Finding natural frequency and mode shape of damped 4 degree of freedom
Use F=ma to develop the differntial equations for m1, m2. Use F=ma and M=Iw for m3. The natural frequencies and mode shapes are ...

9ヶ月 前 | 0

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Design a Transmission Shift Controller
Use a MATLAB Function block in SImulink. You can put the logic in the block. Persist variables could be useful (link).

10ヶ月 前 | 0

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How do i add a drive cycle in simscape to a genric engine.
You need a controller that compare the desired and measured speeds to generate the throttle command. This is not a trivial task....

10ヶ月 前 | 0

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How to find pressure at every section of pipes in series in simscape? One end of pipe is connected to a constant pressure source and another end is open to the atmosphere
Use the Hydraulic Pressure Sensor block in the Simscape Fundation Library - Hydraulic.

10ヶ月 前 | 0

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G ports in simulink?
To get the G port: open the Spherical Solid block. Expand the Export under the Geometry and check the Entire Geometry box.

10ヶ月 前 | 0

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Multiple Joints on flexible parts in Simscape Multibody
You can add new frames to the body elements. The new frames will have new associated ports. You can apply the forces at these po...

11ヶ月 前 | 0

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Is it a reliable number when pid tuning is performed using simscape multibody?
The Simulink PID block correctly implement a PID control. You specify the gains in the block dialog box.

11ヶ月 前 | 0

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Moment of inertia with coordinates
Moment of inertia is or , where m is the mass, r is the distance to the rotation axis.

11ヶ月 前 | 0

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Is there another way to increase the mass flow rate on simscape?
You need to understand the physics. Flow rate and pressure are related. The pressure in a volume is determined by in and out flo...

12ヶ月 前 | 0

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How to draw a Motor efficiency map having speed, torque and efficiency?
Use contour(x,y,z), where x, y need to be in grid corrdinate. You can study the following example for the grid coordinate x = 1...

12ヶ月 前 | 0

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