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Alberto Mora


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62 total contributions since 2017

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Question


Linearize error simulink model in Matlab function (cannot linearize abs())
I want to linearize a simulink model that use a MATLAB Function. Inside the MATLAB function I apply abs(x) and this create a fa...

20 Tage ago | 0 answers | 0

0

answers

Question


Linearize Simulink model simultaneously on signal with multiple channels
I want to linearize a Simulink model for a given input and a given output from MATLAB script, using linearize and linio command....

21 Tage ago | 0 answers | 0

0

answers

Question


How to visualize a Structural Reduced Order model (Superelement) from PDE library
I created a SuperElement (strucural Reduced Order Model from PDE toolbox), and now I want to use it as follow: Attach one super...

22 Tage ago | 0 answers | 0

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Answered
Compute Craig Bampton model reduction using structural PDE toolbox of MATLAB (FEM SuperElements - Component Mode Synthesis)
It seems that with the 2020a release, Mathworks introduced the superelements! You can find the documentation here.

22 Tage ago | 0

| accepted

Answered
Error using DynamicSystem/lsim
Please, do not use symbolic variables for the time array. t=0:0.01:10; H=tf(4,[5 5]); vi=(10.*(sin(10*t))).*(t<=18); v0=lsim...

23 Tage ago | 2

| accepted

Question


Differences between "Moist air" and "Gas" library of Simscape
Hello, assuming that I set the gas constant equal to the air constant (in order to adopt air properties in "Gas" library), what...

etwa ein Monat ago | 1 answer | 0

1

answer

Answered
How can I filtrate recorded time acceleration signal with 4th order Butterworth low pass filter ??
If you sampled the signal at 200Hz it is useless adopt a low-passfilter at 100Hz since 100Hz is already the maximum bandwidth th...

etwa ein Monat ago | 0

| accepted

Question


How to compute partial derivative for Lookup table in Simulink
Hello, I have a 2D look-up table in simulink, let's say for example z=f(x,y). How can I compute the partial derivative of such...

etwa ein Monat ago | 0 answers | 0

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answers

Submitted


Simscape Flexible Beam Stress (BeamStressLib)
Improved "General Flexible Beam" of Simscape, that compute von-Mises stress at beam ends for rectangular beams.

etwa ein Monat ago | 11 downloads |

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Answered
Differences between "Constraint Force" and "Total Force" of Weld Joint
As far as I understood, in this specific case are exactly the same.

etwa ein Monat ago | 0

| accepted

Answered
Declare variables from Matlab function workspace to Simulink worskpace
At the end I found the solution to "send" the variables from the function workspace to the simulink workspace. ModelName='NameO...

etwa ein Monat ago | 0

| accepted

Answered
Modify colobar values into a Function: error "Attempt to extract field 'YTick' from 'mxArray'"
Partially solved. Instead of call the colorbar and then modify it, I do it toghedar as follow: colorbar('Ticks',ValForColorbar,...

etwa ein Monat ago | 0

| accepted

Answered
Phase difference removal by using Filtering, butterworth, filtfilt command
I think that you just need to do: Fs = 500; fcutlow = 6; % low cut frequency in Hz fcuthigh = 14; % high cut freq...

etwa ein Monat ago | 0

| accepted

Question


Modify colobar values into a Function: error "Attempt to extract field 'YTick' from 'mxArray'"
Hi, into a Matlab Function in Simulink environment I want to modify the value shown by a colorbar (adding min and max values ...

etwa ein Monat ago | 1 answer | 0

1

answer

Question


Colorbar not supported in Simulink "MATLAB function" surf plot
I have a custom surf plot written into a "MATLAB function" in simulink environment and I add the 'colorbar' in the plot to see t...

etwa ein Monat ago | 1 answer | 0

1

answer

Question


How can I improve Simscape flexible beam results like FEM results
Hello, I want to improve the results of "Simscape Mechanics Explorer". In particular: I want to magnify small displacements of...

etwa ein Monat ago | 0 answers | 0

0

answers

Question


Enable and Disable input/output subsystem's ports in Simulink
Hello, I created a subsystem with a mask with multiple "checkbox". The mask is used to interact with the subsystem (e.g. set co...

etwa 2 Monate ago | 1 answer | 0

1

answer

Question


If Action Block that create a stairstep signal in simulink
Hello, I have two questions: I use a If Block to "cut" the signal and not perform some operations (not depicted below). Is it ...

etwa 2 Monate ago | 1 answer | 0

1

answer

Question


Run Matlab FUNCTION at the end of Simulink simulation
Hello, in a simulink simulation I compute some signals. At the end of the simulation, when the system reach the steady-state c...

etwa 2 Monate ago | 1 answer | 0

1

answer

Question


Problem of color interpolation of surf plot
Hello, I notice problems with color intepolation using surf plot. There is a similar problem described here, but I can't modif...

etwa 2 Monate ago | 1 answer | 0

1

answer

Answered
Plot different length vectors on the same x-axis
So you have to do something like plot(matix1(:,1),matix1(:,2)); hold on; plot(matix1(1:173,1),matix2(:,2)); plot(matix1(1:173...

etwa 2 Monate ago | 0

| accepted

Question


How to estimate the correct value of "Damping Constant" for Flexible Beams in Simscape
Hello, Reading the Matworks info I notice that damping matrix is defined as proportional by the Damping Constant to the stiffne...

etwa 2 Monate ago | 0 answers | 0

0

answers

Answered
Loads and stress that act on flexible beams in Simscape Multibody environment
Until now I did not find the solution to extract directly the internal stress of the beam, as well as I am not able to find the ...

etwa 2 Monate ago | 0

| accepted

Question


How to run a Simulink simulation using keyboard
Hello, how can I run a simulink simulation using the keyboard, like I do for scripts using F5? Thanks and best regards - A

etwa 2 Monate ago | 1 answer | 0

1

answer

Question


How to get numerical info of "Derived Values" of Flexible Beams in Simscape Multibody
Hello, how can I access to the parameteres calculated on the "Derived Values" (e.g. Axial Rigidity, Mass per Unit Length) of a...

etwa 2 Monate ago | 0 answers | 0

0

answers

Question


Differences between "Constraint Force" and "Total Force" of Weld Joint
Which is the difference between Constraint Force and Total Force of Welded Joint in Simscape Multibody? Constraint are defined ...

etwa 2 Monate ago | 1 answer | 0

1

answer

Question


Distribuited load on flexible beams Simscape Multibody
Hello, how can I load a generic flexible beam with a distribuited load on Simscape Multibody (instead of the traditional lumped...

etwa 2 Monate ago | 0 answers | 0

0

answers

Answered
How can you measure the flex in a general flexible beam in Simscape Multibody?
If you are interested into the relative displacement at the ends of the beams (eg bending deflection, elongation/compression etc...

etwa 2 Monate ago | 0

Answered
What's wrong with my FRF?
The average slope of the two lines suggest that in one case you are integrating the accelartion into velocity (orangeFRF) so you...

etwa 2 Monate ago | 1

| accepted

Question


Loads and stress that act on flexible beams in Simscape Multibody environment
Hello, I am using Simscape Multibody for creating a structural model of few flexible beams attached toghedar, like a sort of fr...

etwa 2 Monate ago | 1 answer | 0

1

answer

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