why does sine curve not properly plotted in simulink

[Shivank Anchal]

when the stop time is 10 seconds,it gives a proper sine curve, but when I increase the time it gives the sine graph unlike sine graph.Pls help me with this, why is this happening?

Answer 1

[Shubham Gupta]

I reckon that you are using variable time step so when you increase your time, time step also increases. So, the curve is not as smooth as you have expected. To solve this use fixed time step and keep it small to get smoother curve.

Go to File->Simulink Preferences->Under Sover option, choose "fixed step" type and then choose fixed time step like 1ms

[Shivank Anchal]

[Shivank Anchal]

where is the solver option,i did not find it any where, pls help me.

[Shubham Gupta]

I am not if this info is still relevant but I reckon you are using so you might have to access solver options using different method. couple of methods that might work are:

Method 1 :

If you can see a gear type button in the simulink's toolbar, you can use that to change the sample time

Method 2 :

Go to Simulink->Configuration Parameter

Method 3 :

Press Ctrl+F to open Configuration Parameters directly

I hope it works !

[Aditya Yadav]

Really helpful..Thanks