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How to do this block diagram in simulink?
Hi @Tahsin If you are referring to this block diagram, there is a slight mistake in the architecture, as the Velocity Loop and ...

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How to properly fit the data to lorentzian curve as I am getting a few errors...
Hi @Yogesh Here is the fitting with a Gaussian model. RMS=[]; R=[]; P_threshold=[]; L=5; %[m] Fiber length V1=[1]; P0=4.7...

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PI controller does not have the effect I would expect from the calculations
Hi @Wynand Please see my explanations below. %% Plant K = 11041666; B = 100; M = 1019; num ...

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What calculation is done to find the gains (k) of the zpk function?
Hi @Rafaella Barrêto Campos Short Answer: Due to your specific state-space configuration, k(1) is derived from the first elem...

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Model and control state space with perturbation
Hi @CN. The discussion in the provided link does not address control design for disturbance rejection. Regarding your inquiry,...

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Trying to create a polynomial using data from a table
Hi @Andrei I believe the correct syntax should be [X, Y] = meshgrid(dP, PressureInlet), and the remainder of your code appears ...

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What optimization algorithm would work best for my network problem?
Hi @Robert Gray It may be difficult to determine which optimization algorithm would work best for your network problem. Some op...

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How to properly fit the data to lorentzian curve as I am getting a few errors...
Hi @Yogesh Here is how I fit the Lorentzian model: RMS=[]; R=[]; P_threshold=[]; L=5; %[m] Fiber length V1=[1]; P0=4.7960...

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Controlling the actuator with 5,10 mm displacement input.
Hi @Fatih The mathematical function for the reference signal (red curve) is necessary so that we can instruct the PID controlle...

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function zpk and linmod
Hi @Rafaella Barrêto Campos Once you have the state-space, you can apply the zpk() function to obtain the TF in zpk mode. A ...

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I am using the MATLAB exchange file called "A MATLAB Script for Earth-to-Mars Mission Design", getting error sunscreen is not defined
Hi @Chintan Most of the simulation projects by David Eagle require SNOPT, which stands for Sparse Nonlinear OPTimizer. If you a...

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How to define the output membership function in Sugeno method while using Fuzzy Logics Design app in Matlab?
Hi @Tharun Balaji Rangaswamy Selvakumar If you have a set of data, you can train the ANFIS, which produces the Sugeno Fuzzy Sys...

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Dimensionless variables of the differential equation
Hi @Yu The aim is to render the entire dynamical system dimensionless (by finding the dimensionless time derivative), rather th...

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Is there a way to determine an equivalent circuit for Nyquist diagrams (I have the data set) using Matlab (or Simulink)?
Hi @Arthur FdA I'm unfamiliar with your circuit system. However, if you have the data in the form of frequency-response, then y...

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for the parameter space in fuzzy logic , how can i choose the value of the numbers ?
Each selected membership function type requires the parameters to be specified as a vector. The length of the parameter vector d...

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Asking about fuzzy mamdani rule
Please refer to the example in the link for constructing a fuzzy inference system at the MATLAB command line. https://www.mathw...

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No rules fired for Output 1. Defuzzified output value set to its mean range value 2.3873.
Hi @Eliane Fernández I replicated the Warning message in the example below. It is easier to understand why the warning occurs b...

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Error in Simulink - Derivative of state '1' in block at time 301.02267725 is not finite. The simulation will be stopped. There may be a singularity in the solution.
Hi @federica terlizzi % Derivative of state '1' in block 'gam_control1/PID Controller2/Integrator/Continuous/Integrator' % at...

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changes the parameters of a fuzzy Inference system in run time
Hi @gaurav kumawat If you enter fixed numeric values in the block parameters of the membership function blocks or in the fuzzy ...

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why is the Transfer fcn like this instead of showing in variable s?
Hi @Saeid It's because the block is not big enough to display . Click at the corner of the block and drag it horizontally unti...

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fuzzy logic controller failed design problem
Hi @KAO CHUN YU The singleton (constant) output membership functions in Fig. 5 indicate that this is a Sugeno fuzzy system; how...

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Possibility of Custom Denominator of Transfer Function within Simulink
Hi @Alexander Gaudreau For a variable gain in a dynamic model, you can try describing the system using MATLAB Function block. ...

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How to change the Type of MF from trimf to constant in the Fuzzy Logic Designer app?
Hi @m gh You can convert the Triangular MFs to Singletons (constant MFs) using this workaround, by specifying all three triMF p...

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Custom Sugeno Fuzzy Model
Hi @Mojtaba Hasanzadeh As of the R2024b release, custom output membership functions are still not supported for Sugeno systems ...

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Too Much Variables in Fuzzy Logic and ANFIS
Hi @YTU With 13 inputs and 5 membership functions each, the total number of rules exceeds more than billion rules when using t...

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the neuro fuzzy sistem modify the membership function in input or in output?
Hi @astrubale ponzio In the following simple example, the ANFIS is trained to fit a trapezoidal set-based fuzzy system to the i...

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How to fit this model with a Weibull distribution?
Hi @Michele Turchiarelli I normalized the x-axis data to facilitate the fitting algorithm's search process. Is this solution ac...

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How to design constant membership functions (singletons) for the output of a Mamdani fuzzy system?
Hi @Peddireddy This is a decade-old question, but it is indeed possible to implement a Mamdani fuzzy system (MamFIS) for the ou...

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Expert System using Fuzzy Logic
Hi @Arief The Fuzzy Tipper example is considered an Expert System for describing the tipping behavior that is typically practic...

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What are the meanings of fuzzy rules expressed in indices format?
Hi @Yadollah Sabri 1 1, 1 (1) : 2 2 0, 2 (1) : 1 This approach is one of several ways to specify the rules using membership f...

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