Alexander Babin
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Feeds
Question
How to obtain numerical values of displacement due to deformation?
Hi, I am solving a simple FEA problem for a rod, see below: The rod is bent due to a force appled to the top vertex, the bott...
meer dan 3 jaar ago | 0 answers | 0
0
answersQuestion
Structural Optimization Workflow in Matlab
Dear friends! My question is aimed at people who deal with optimization problems coupled with FEA and use Matlab for that, and ...
meer dan 3 jaar ago | 0 answers | 0
0
answersQuestion
Extra faces in imported geometry
Hi, every one, I am trying to import a part I designed in Autodesk Inventor, the .stl file attached, but there are some extra fa...
meer dan 3 jaar ago | 1 answer | 0
1
answerQuestion
Input to Output ghost elements
Dear friends, it is the strangest thing I have seen and the weirdest question to ask. Consider the following model: The input...
meer dan 3 jaar ago | 0 answers | 0
0
answersQuestion
Double to Logical convertion in Simulink
Dear friends! So i have an array of boolean like this: [0 1 0 1 1 1 1 0 0 1 0] If you plot it in Matlab, ...
meer dan 3 jaar ago | 1 answer | 0
1
answerQuestion
Code generation with external variables
Dear friends! I am not sure if the word 'external' in the question is correct, but here is what i am talking about: The progra...
meer dan 3 jaar ago | 1 answer | 0
1
answerSubmitted
Normalization and Linear Regression of Data
A simple piece of code including a function for linear regression lin_fit(...) for data points X and y
meer dan 3 jaar ago | 1 download |
Solved
Mandelbrot Numbers
The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...
meer dan 3 jaar ago
Question
Code generation for stm32f4 discovery results in an empty main.c
Hello to everyone, I am trying to connect my stm32f4 discovery board to simulink to generate code and run in on the board via ...
meer dan 3 jaar ago | 0 answers | 0
0
answersSolved
Rescale Scores
Each column (except last) of matrix |X| contains students' scores in a course assignment or a test. The last column has a weight...
meer dan 3 jaar ago
Solved
Longest run of consecutive numbers
Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have a = [1 2 2 2 1 ...
meer dan 3 jaar ago
Solved
Crop an Image
A grayscale image is represented as a matrix in MATLAB. Each matrix element represents a pixel in the image. An element value re...
meer dan 3 jaar ago
Solved
Solve a System of Linear Equations
*Example*: If a system of linear equations in _x₁_ and _x₂_ is: 2 _x₁_ + _x₂_ = 2 _x₁...
meer dan 3 jaar ago
Solved
Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...
meer dan 3 jaar ago
Solved
Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....
meer dan 3 jaar ago
Solved
Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...
meer dan 3 jaar ago
Question
Error Bus signal cannot be found in the Input bus signal
Dear friends, please, look the schematic below and tell me, why even though DX returns a proper vector, it cannout be found in ...
bijna 4 jaar ago | 0 answers | 0
0
answersQuestion
How to set up a Simulink model to use external clock on my Arduino Mega 2560?
Hi, all, I have an Arduino board all configured, two potentiometers connected to it at the same time, pins A0 and A1, however, s...
bijna 4 jaar ago | 0 answers | 0
0
answersLQI Control input
hi, I hope, it is still relevant: to compute u(k) = K*x(k)
bijna 4 jaar ago | 0
Question
How does linearization algorith work in Linearization Manager?
Dear friends! My question is more out of curiosity, I suspect, that since I see my simulink model run a few times, the manager ...
ongeveer 4 jaar ago | 0 answers | 0
0
answersQuestion
What do Y axes mean in Sensitivity Analysis results?
Hi, I have the following results in Sensitivity analysis toolbox, see attached figure. I have specified step response envelope...
ongeveer 4 jaar ago | 0 answers | 0
0
answersQuestion
How to export a figure with editable axes from Sensitivity Analysis toolbox?
Hi, I would like to export some plots from sensitivity analysis toolbox to my paper, I managed to export requirements plots for ...
ongeveer 4 jaar ago | 0 answers | 0
0
answersStability margins on Nyquist plot for MIMO control systems
I figured it out. You could extract each input-ouput transfer function via g=tf(G.Numerator(i,j),G.Denominator(i,j)) where g is ...
ongeveer 4 jaar ago | 0
| accepted
Question
Stability margins on Nyquist plot for MIMO control systems
Dear Friends! I hope you are all doing fine in these strange times! I have a question regarding the stability margins for a MI...
ongeveer 4 jaar ago | 1 answer | 0
1
answerQuestion
Discrete-time Derivative
Dear friends! I am simulating a system with an ADC which acquires signals from two sensors at some N Hz rate, converting a cont...
meer dan 4 jaar ago | 0 answers | 0
0
answersQuestion
why linearisation of a closed-loop systems results in an infinite step response?
Dear friends! Please, take a look at the system below with open loop inputs and outputs configered this way, the following i...
meer dan 4 jaar ago | 0 answers | 0
0
answersQuestion
Step response of a closed-loop system
Dear friends, i need to determine the stability of a system that consists of a PI controller, a servovalve and a thrust bearing...
meer dan 4 jaar ago | 1 answer | 0
1
answerQuestion
How to use methods of the class in the constructor of this class?
Dear friends! I am quite new with Matlab and especially with OOP in it. I have a question regarding object construction: the t...
meer dan 4 jaar ago | 1 answer | 0
1
answer
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