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Christo van Rensburg


Last seen: nästan 2 år ago |  Active since 2019

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Question


Why does my gearbox model not reach a steady-state torque
I setup a 3 DOF two-stage gearbox model in Simulink as follows: Even though I'm applying a constant input torque and a quad...

mer än 2 år ago | 0 answers | 0

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answers

Question


Model Induction Motor with Fan
Good day, I'm looking to model an induction motor with an axial fan attached to its rotor side via a gearbox. At the moment I...

mer än 2 år ago | 1 answer | 0

1

answer

Question


Dynamic model of Soft Starter
Hi there everyone, Apologies for asking this question so crude on the forum here, but I'm looking for someone to assist me in...

mer än 2 år ago | 0 answers | 0

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answers

Question


Time dependent matrix entry
Good day, I've got a repeating sequence block with a 1x2-matrix for the durations of the output values. I however need to ch...

mer än 2 år ago | 1 answer | 0

1

answer

Question


Implement three-phase delta connection to Induction Motor
Good day everyone, I'm looking to connect my induction motor to a delta connection for three-phase power. Below is how I have...

ungefär 3 år ago | 1 answer | 0

1

answer

Question


Placement of inertia blocks in system
Good day everyone, I am unsure of where to exactly place inertias for certain components in a system I'd like to simulate. Th...

mer än 3 år ago | 0 answers | 0

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answers

Question


Induction Machine block Rotor velocity error
Good day everyone, I'm modelling a induction machine block in Simulink. When I connect a inertia block to its 'R'-port, the t...

mer än 3 år ago | 0 answers | 0

0

answers

Question


Increase parameter value during Simulink simulation
Good day everyone, I'm attempting to gradually increase a value during a simulink simulation. It is a single value that I div...

mer än 3 år ago | 0 answers | 0

0

answers

Question


Incorrect velocity of gears in Gearbox
Hi everyone, So I'm a building a single stage gearbox as depicted in the figure below in Simulink. Gear 1 (N = 17 teeth)...

mer än 3 år ago | 1 answer | 0

1

answer

Question


Asynchronous Machine Input parameters
Good day everyone In the asynchronous machine block in the Simulink environment, it has four inputs. Three for the three-phas...

mer än 3 år ago | 1 answer | 0

1

answer

Question


Multi-stage gearbox Simulink
Good day everyone I'm struggling to assemble a two-stage gearbox using the gear blocks provided by Simulink. The gearbox I am...

nästan 4 år ago | 0 answers | 0

0

answers

Question


Error with file density in Simulink
Hi I've created two gears in Autodesk Inventor and am trying to implement them in a 'File Solid' block in Simulink as STEP-f...

nästan 4 år ago | 0 answers | 0

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answers

Question


Error for Gain block in Simulink
Hi there, I'm getting the following error when I try to type "1/(Ih+Ib)" into the parameter value of the Gain block in Simulink....

nästan 4 år ago | 0 answers | 0

0

answers

Question


Plot straight line between points
Hi everybody, I'm trying to plot something like this, but just for a number of datapoints. But keep on getting something l...

nästan 4 år ago | 2 answers | 0

2

answers

Question


Problem when solving ODEs with ode45
Good day, I have the following code where I simultaneously solve three second-order differential equations defined in 'ode3'. ...

nästan 4 år ago | 1 answer | 0

1

answer

Question


Solve coupled 2nd order ODE
Hi guys, I got two second order equations that look like this with force 'F' time dependent: I've tried numerous methods...

nästan 4 år ago | 0 answers | 0

0

answers

Question


Time varying force with ode23
Hi there I have the following code: tf = 1; t = linspace(0,3); Ft = zeros(length(t),1); % Here I generate the force ...

nästan 4 år ago | 2 answers | 0

2

answers

Question


Increment cell number in xlsread
Hi I'm reading values from a excel spreadsheet with xlsread as such: exp.Vc = xlsread('BD.xlsx', 1, 'E9'); and was won...

mer än 4 år ago | 1 answer | 0

1

answer

Question


Linking marker face color to colorbar
Hi How do I link the face color of a marker to a colorbar? I have the following code so far: plot(ones(length(cds_BD),1)*s...

mer än 4 år ago | 1 answer | 0

1

answer

Question


Marker Face Colour according to colourbar
Hi there I wish to plot markers on a 2D plot but have the 'MarkerFaceColor' change according to another matrix of values. ...

mer än 4 år ago | 0 answers | 0

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answers

Question


Optimization of model parameters
Hi I'm busy trying to optimize a model that predicts the trajectory of a projectile. I have two parameters that needs to be ...

mer än 4 år ago | 1 answer | 0

1

answer

Question


Event function with multiple events
Hi, I'm calling a events function as below for ode45: option2 = odeset('Events', @comp); [time, Y] = ode45(dYdt, tspan, y0...

mer än 4 år ago | 1 answer | 1

1

answer

Question


Plot 2D points in 3D space
Hi there So I'm struggling to find a way in which I can represent a 2D trjaectory in a 3D plot. I'm viewing the trajectory fr...

mer än 4 år ago | 1 answer | 0

1

answer

Question


Saving animation of projectile motion
Hi there I'm struggling to find a way of saving three projectiles on the same graph as a video file. I have three for loops f...

mer än 4 år ago | 2 answers | 0

2

answers

Question


Displaying special characters in dialog box
Hi there I'm trying to display certain special characters in brackets in a dialog box. The common way of doing it doesn't wor...

nästan 5 år ago | 1 answer | 0

1

answer

Question


Extract numerical values from structure
Hi I'm taking input parameters from a dialog box which MATLAB then stores in a cell array. I this cell to an structure by using...

nästan 5 år ago | 1 answer | 0

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answer