# Gloria

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**Content Feed**

Question

How to determine an y value at a specific x value?

How can I find what is e when sm1=8.1813e-13?

3 giorni ago | 3 answers | 0

### 3

answersQuestion

Function, dot, help me for solution

% I couldnt find my mistake v=19*10^-3; N=314; R=25*10^-3; L=50*10^-3; C=1*10^-4; e=0.1:0.1:0.9; W=...

13 giorni ago | 2 answers | 0

### 2

answersQuestion

how can I solve this problem

v=0.001; L=0.084; D=0.042; R=0.02; C=0.001; sm= v*N*L*R*L^2/(4*W*C^2); sm=(1-p^2)^2/p*((16*p^2+pi^2*(...

15 giorni ago | 2 answers | 0

### 2

answersQuestion

ode23, too slow

It takes a long time to solve the code. Is it because the code is reading data from a.dat file? How can I make it go faster? It ...

2 mesi ago | 2 answers | 0

### 2

answersQuestion

ode45,ODE23 , force is not a time dependent function

Hi; As you can see in the code ; normally for ODE23 I was defining the force with time such as Fy=@(t) Fyr*sin(w*t); But now ...

3 mesi ago | 2 answers | 0

### 2

answersQuestion

ode45,Too many output arguments error

The equation is complex , I can not get the solution, how can I solve it?

5 mesi ago | 1 answer | 0

### 1

answerQuestion

modelfrf, experiment, naturel frequecies, magnitude

When I plot the experiment data with modalfrf, the units on the vertical axis are not correct. I gave the result for the experim...

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

why matlab 2019a, 2016a doesnt recognize modalfrf?

When I try modelfrf I got this responce; Undefined function or variable 'modelfrf'. How can I solve this problem

oltre un anno ago | 1 answer | 0

### 1

answerFrf,Modal analysis, Naturel frequencies

I appreciate your help, thank you! It didn't work. I guess I have a mistake. Txy values seem as a Nan+Nani It is also good to...

oltre un anno ago | 0

Question

Frf,Modal analysis, Naturel frequencies

Hi; I have experiment data for time depending force and displacement values. I need to plot Displacement (dB) - frequency grap...

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

FRF, power spectrum- frequency graph ,acceleration-frequency graph

I have data of experiment for acceleration,timestep and torque. I need to learn naturel frequencies of the experiment. I need p...

oltre un anno ago | 0 answers | 0

### 0

answersQuestion

matlab code takes really long time large matrix

Hi ; I want to solve forced vibration problem with ODE45. But mass, stiffness, damping matrix are 14*14 and force matrix depend...

oltre un anno ago | 0 answers | 0

### 0

answersQuestion

ode 45, big matrices, I can not get result because of

function deneme S=0.02; rpm=111; %rpm w(1)=rpm*2*pi/60; AA=0.4; P=0.8; Z=4; DD=6.15; p=1025; n=1.85; AR=0.22087*Z/...

circa 2 anni ago | 1 answer | 0

### 1

answermixed derivatives, I coulnt understand how can I solve ıf there are two kind derivatives

circa 2 anni ago | 0

Question

mixed derivatives, I coulnt understand how can I solve ıf there are two kind derivatives

Hi ; I have to solve this equation and u'' and v'' are the second order derivatives of longitudinal and transverse displacement...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

when I applied fft to displacement-time data , I cant see maximum displacement value?

Maximum displacement is 1 , but with fft I can only see 0.9267? Where is my mistake? t=0:0.01:10; t_step=0.01; ts=1/t_step; ...

circa 2 anni ago | 0 answers | 0

### 0

answersQuestion

fft,displacement, frequency

Hi; I can see the maximum displacement with Figure 1 which is Displacement-time grapf. When I apply fft I can see the correct f...

circa 2 anni ago | 0 answers | 0

### 0

answersQuestion

FFT, acceleration-frequency, vibration

Hello everybody ; I have torsional angle values and axial displacements. I first try to draw the acceleration-frequency graph ...

circa 3 anni ago | 0 answers | 0

### 0

answersQuestion

FFT, derivative,acceleration

I have displacement results.I am using Matlab and my friend is using Phayton. We are plotting Acceleration-Frequency graphs and...

circa 3 anni ago | 0 answers | 0

### 0

answersQuestion

ode23 , matrix equation , 2nd order DE

How I will solve this matrix in Matlab ? w=10.02; p= 7850; %%%Kg/m^3; g=9.81; G=77*10^9; %%% N/m^2 E=206*10^9; ...

circa 3 anni ago | 2 answers | 0