Engineering Stack Exchange
Engineering Stack Exchange

Questions tagged [simulink]

37 questions
7
votes
0 answers

BER peroformance of MPSK and MQAM in Rayleigh fading channel

I have a question regarding bit error rate (BER) performance over the Rayleigh channel. I observed BER performance over the AWGN channel using Simulink in MATLAB. I used to change the "SNR" parameter in the AWGN block to get the BER. What if I want…
Sara
  • 81
  • 1
6
votes
1 answer

I have a problem with my representation of roll in Simulink

I am currently an engineering student and a member of the aerospace club of my engineering school (ESILV) which is called LéoFly. We’re a team of 12 students and are building a Fusex (Experimental Rocket) for the launch campaign of the CNES in…
Axel JOLY
  • 71
  • 1
4
votes
1 answer

Is it normal to get different solutions with different ODE methods in MATLAB simulink?

I made a block diagram using simulink. When I solve it with ode45 and ode23 it gives me different graphs. Is it normal? Should I use the proper one? m1=1.3608; m2=0.096; r=0.0592; I2=0.0002175; k1=186.3; g=9.81; Here is what the model looks…
Deccoyi
  • 41
  • 1
4
votes
1 answer

Speed Control of Quadcopter along with Position Control Using PID with Simulink

Within MATLAB Community, I found an example of a simple quadcopter model control built with Simulik and SimMechanics, The controllers handle position and orientation control. I want to extend this controller and add a speed controller (Quadcopter…
mozcelikors
  • 141
  • 3
3
votes
0 answers

Single-phase fully-controlled thyristor converter simulation using simulink

I am trying to implement a simple single-phase fully-controlled thyristor converter using Simulink. As load I have placed just an inductor, the firing angle is set to a=60 deg., f=50 Hz and the rms of the voltage source is 230 V. The output voltage…
user3212953
  • 31
  • 2
3
votes
2 answers

Modeling Vehicle Acceleration - Simulink

Hello I am modeling a vehicle that has a seperately excited DC motor as the power plant utilizing the constant-torque and constant-power regions for traction. The acceleration is governed by the following equation $$ M \frac{dv}{dt} = F_t…
james
  • 43
  • 4
3
votes
0 answers

How to measure / calculate Tait-Bryan angles of a moving platform in SimMechanics

I exported a model of the mechanism created in SolidWorks to SimMechanics in order to explore the possibilities of control. To solve the problem, i need to know the angular position of the mobile platform. In reality, I can do this with the help of…
dtn
  • 211
  • 1
  • 9
2
votes
1 answer

Problem with process controls/simulink?

I have an issue with simulink, basically it's to do with a second order system, well two first order systems in series. As I understand it as you increase the damping factor (above 1), the system should respond slower and be more sluggish. The…
MathsIsHard
  • 325
  • 2
  • 10
2
votes
0 answers

Export simulink sdi dataset from MATLAB 2015b

I have used the Simulation Data Inspector in Simulink to log a dataset of two time varying signals. The only option I see concerning exporting is to .mat or to workspace, which basically produce the same type of output: Simulink.sdi.Dataset I have…
fluxmodel
  • 121
  • 2
2
votes
0 answers

How are circular dependencies dealt with inside MBSE?

How are circular dependencies (best) managed inside of MBSE environments? Let's say I have two properties that are linked to each other / they are linked to properties that affect each other. How is this managed both from an abstract…
RealMech
  • 21
  • 1
2
votes
1 answer

Why we use GPIO for embedded systems?

I'm using an F2802x microcontroller and I saw in Embedded Coder in Simulink that I have Digital output block. When I use this block, how does it work?
user7116
  • 49
  • 1
1
vote
2 answers

Dynamic forces in Simulink

I have the equation of motion: $a = \frac{1}{m} \left( F_1 - F_2 -F_{fric} \right)$ where a is the acceleration and m is the mass of an object. $F_{fric}$ is the friction calculated as: $F_{fric} = B \cdot v + F_{coulomb} \cdot sign(v)$ Where v is…
Nil
  • 61
  • 5
1
vote
0 answers

Simulinks modeling of 2-loop circuit containing LRC elements

I have been attempting to model the following circuit using KVL and Simulinks: Applying KVL generated these coupled differential equations: $$ 0 = -V + \frac{q_1}{c_1} + R ( \frac{dq_1}{dt} - \frac{dq_2}{dt} ) $$ $$ 0 = -R ( \frac{dq_1}{dt} -…
FawltyPlay
  • 11
  • 2
1
vote
1 answer

Strange simulink error. Professor & TA don't know. Any Ideas?

I am currently working on developing a simulation for a restricted UAV, and I’m having some issues with Simulink while doing this. I have my mathematical equations which have been approved by my professor, but while I’m trying to simulate the system…
gunter
  • 331
  • 1
  • 7
1
vote
0 answers

Simulink analysis of data parallel to generation

I would like to simulate the following scenario with Simulink/Matlab(/Stateflow): A random number generator is running. Every 10 seconds the numbers that were generated during the last 10 seconds are added up. If the sum is greater than 50 the…
ec-m
  • 111
  • 2
1
2 3