Randy Chen
Followers: 0 Following: 0
Statistiques
37 Questions
0 Réponses
RANG
183 259
of 297 016
RÉPUTATION
0
CONTRIBUTIONS
37 Questions
0 Réponses
ACCEPTATION DE VOS RÉPONSES
56.76%
VOTES REÇUS
0
RANG
of 20 419
RÉPUTATION
N/A
CLASSEMENT MOYEN
0.00
CONTRIBUTIONS
0 Fichier
TÉLÉCHARGEMENTS
0
ALL TIME TÉLÉCHARGEMENTS
0
RANG
of 157 725
CONTRIBUTIONS
0 Problèmes
0 Solutions
SCORE
0
NOMBRE DE BADGES
0
CONTRIBUTIONS
0 Publications
CONTRIBUTIONS
0 Public Chaîne
CLASSEMENT MOYEN
CONTRIBUTIONS
0 Point fort
NOMBRE MOYEN DE LIKES
Accept 20 answers given by other contributors
Awarded to Randy Chen on 31 Oct 2021
Feeds
Question
Unexpected behavior resulting from the Three-Phase-Fault block in my simulated circuit (Simulink)
Hi all, I am simulating a circuit with a 3-phase fault inserted as shown here: My goal is to simulate the fault at diff...
6 mois il y a | 1 réponse | 0
0
réponseQuestion
Error encountered in the Deep Signal Anomaly detector while running the official SIMULINK example
Hi all, I am runnining this official Simulink example here: fault_localization in 3-phase power line. I had a somewhat dif...
7 mois il y a | 1 réponse | 0
1
réponseQuestion
how to find all possible stationary points of a system of nonlinear equations
I stumbled across this seemingly simple problem: I tried using fsolve, but I can only pass in a single initial guess. Is ther...
plus de 2 ans il y a | 1 réponse | 0
1
réponseQuestion
Question about using the nonlinear model predictive control toolbox
I wonder what type of solvers is used in the nlmpcmove function? I can't seem to find relevant documentations online.
plus de 2 ans il y a | 1 réponse | 0
1
réponseQuestion
Array indices must be positive integers or logical values.
I have a few function scripts and a main script. The function scripts can run perfectly without errors when I manually input s...
presque 3 ans il y a | 1 réponse | 0
0
réponseQuestion
the `margin` command gives incorrect gain when comparing to the actual Bode plot
I have a continuous-time tranfser function with delay , and I printed the gain and phase margin as following: [Gm0,Pm0] = mar...
environ 3 ans il y a | 1 réponse | 0
0
réponseQuestion
How to fix symbolic errors
I have the following function defined that will be used in a main script: function ke = Ke2Diso(E, nu, Xe, Ye) E_matrix = E/...
environ 3 ans il y a | 1 réponse | 0
1
réponseQuestion
Need help on Control System Tuner in Simulink
I tried to use control system tuner to tune my PID controllers, but when I was setting step tracking goal, my step input signals...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
need some help on the Linearization tool in MATLAB
According to the documentation for linearize, a linear approximation of a nonlinear plant is returned at the specific operating ...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
how to extract a transfer function or state space model from a Simulink model
I have built a Simulink model for an inverted pendulum and is attached here. I would like to check the settling time using the s...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
need some help on linearizing the plant model for an inverted pendulum in Simulink
I constructed a Simulink model for an inverted pendulum system according to this tutorial:https://ctms.engin.umich.edu/CTMS/inde...
plus de 3 ans il y a | 1 réponse | 0
0
réponseQuestion
curve fit a custom polynomial
I have the following 2nd order polynomial in the r-z coordinates: Right now I have four sets of coordinats (r,z), how shoul...
plus de 3 ans il y a | 2 réponses | 0
2
réponsesQuestion
How to fix the sym/solve error
I get the following error from my code: z = [-6.41 -12.4 2.143 102]; r = [13.58 15.7636 12.96 46.6]; syms A B C D; eq1 = A*r...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
need some help to troubleshoot a "solution not finite" error in Simulink
I'm getting the following error on my Simulink model: I tried changing the initial conditions and reducing the fixed step...
plus de 3 ans il y a | 1 réponse | 0
0
réponseQuestion
Simulink simulation error: solution not finite
I encountered the following simulation error: I tried reducing the step size in the solver but it doesn't work. How should ...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
need help on trouble shooting my Simulink controller model
I have created a simulink model for an inverted airfoil mounted on a moving cart (very similar to the inverted cart-pendulum). I...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
need some help on modifying my simulink model
I have created a simulink model for an inverted airfoil mounted on a moving cart( similar to the classical cart-inverted pendulu...
plus de 3 ans il y a | 1 réponse | 0
0
réponseQuestion
Simulink algebraic loop warning?
Can someone please explain what this warning means?
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
simulink modelling vs the actual differential equation
I didn't realize that to model a set of governing differential equations of a dynamical system in Simulink will require some mod...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
Simulation error in Simulink
I'm getting these errors for my model in Simulink: I tried to switch to TrustRegion-based algorithm, but it failed after I ...
plus de 3 ans il y a | 1 réponse | 0
0
réponseQuestion
how to solve this MATLAB solve error?
I'm trying to solve a simple set of linear equations: syms m U2 eqn1 = 0.0004*200*10^6*(-3/4*U2-sqrt(3)/4*0.05)==0; eqn2 = ...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
define parameter values for simscape model
I'm playing around with the inverted pendulum simscape file that comes with MATLAB, but I notice some issues: All the param...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
Old-version simscape model cannot run on MATLAB 2020
I downloaded a 2017-version simscape model and attempted to run it on MATLAB 2020, but it keeps giving me this error: I t...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
How is the transfer function determined for a PID controller
I'm reading a tutorial on PID controller, and the transfer function for a mass-spring damper system is given as follows: wh...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
converting symbolic function to numerical representation for integration purpose
Below are my codes attempting to compute numerical integrals using Lagrange polynomials clear all nvect=[5,15,30,50]; fcn=@(x...
presque 4 ans il y a | 1 réponse | 0
1
réponseQuestion
how to solve an equation iteratively?
I need to solve the following equation and get a real number: Below are my codes. When doing this, the solution returned are a...
presque 4 ans il y a | 1 réponse | 0
1
réponseQuestion
how to plot a function symbolically?
I would like to plot the following function: where g is the only known constant = 9.8. How should I plot this function z(r)...
environ 4 ans il y a | 3 réponses | 0
3
réponsesQuestion
plotting two legends on the same plot
I have trouble plotting two legends for two lines on the same plot . Here are my codes: p = linspace(0,1,50); v = -290*9.8*log...
environ 4 ans il y a | 1 réponse | 0
1
réponseQuestion
how to select a row of data from a csv file that is imported into Matlab?
I need to read in a csv file and utilize a function that is built into matlab: [a,ecc,incl,RAAN,argp,nu,truelon,arglat,lonper] ...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
i got some issues trying to integrate a function symbolically
I'm trying to symbolically integrate this function, but it's not working: >> syms x y s >> fun = y/((x-s)^2+y^2); >> int(fun,...
plus de 4 ans il y a | 1 réponse | 0
1
réponse
Vous pouvez également sélectionner un site web dans la liste suivante :
Amériques
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom(English)
Asie-Pacifique
- Australia (English)
- India (English)
- New Zealand (English)
- 中国
- 日本Japanese (日本語)
- 한국Korean (한국어)