How can i plot these problems in matlab?? I have x and y coordinate of node 3 and node 4 .

2.The free vibration test is carried out on 2DOF building in shake table. The vibration response obtained from wireless accelerometer sensor both in x and y directions are attached for further data processing.

 Write a code in MATLAB software to,
(a) Plot the time domain acceleration data
(b) Plot the frequency domain data
(c) Estimate the first two natural frequency of a structure.
i m beginner in matlab so please help.

Answer 1

[KSSV]

To plot the acceleration , time data you can use plot

plot(Time,acceleration)

To plot the frequency domain, you need to convert the aacceleration data to frequency. For this you have to use fft.

https://in.mathworks.com/help/matlab/ref/fft.html

After converting to frequency, you can get your required frequencies.

[Prakash Chettri]

I got it but can you provide full code for time vs acceleration data