Recent content by AnkleBreaker

Is this it? Or do I have to run one step input through a delay?

This was part of a question. In the question they say: Arm dynamics are represented by: G(s) = 3 / ((s^2) +3) So G(s) = 3 / ((s^2) +3) is part of the question and I did not derive it And they want us to find a phase lead controller/compensator to fit required poles, which I did. I was just...

Thank you for all your help. User NascentOxygen's answer states that the graph oscillates infinitely due to there being an absence of a damper, which makes a lot of sense and explains a whole lot.

Ohh there was no damping ratio. I get it now. That explains a lot. Thank you very much

Homework Statement I would like to know a way to design an impulse input in a Matlab Simulink model. I know there are step input and ramp input blocks but there is no impulse input block. Homework Equations The Attempt at a Solution If any working is needed please let me know

Thank you very much for your help. I'll try to ask Sir tomorrow what went wrong with my graph. One last question, on the time axis I have only put values up to 50. Is that enough or should I put more/less than 50, in your opinion

This is the new step response graph I am getting after I did like you asked

Yes that's my image.. Very sorry.. I tried re uploading it and I thought it was working..

Homework Statement Could someone just quickly check my Step Reponse diagram which I made using Matlab. It does not look like the usual shape for a step response system which is making me a bit worried. I'm a fairly new to Matlab and Control Engineering Homework Equations G(s) = 3 / ((s^2) +3)...

Thank you for your reply. Gain Margin is the amount of gain that can be added to the system before the system becomes unstable Phase Margin is the difference of the phase at the 0dB crossover frequency and -180 Original: Modified: I'm not really sure of the answer to that question

Homework Statement What is the effect on the phase and gain margins of a system when a Phase Lead Controller/Compensator is added? Homework Equations I have designed the phase lead controller for the system so if anyone wants to see it, please ask The Attempt at a Solution I know, that in...

Many thanks for you reply. Yeah I got the step and ramp, I was having a little bit of trouble with the impulse, but I will try to do what you told. Thanks for the hint. The differential equation I got, and the simulink diagram was modeled according to: y''(t) = (1/m)(x - ky - cy') The...

Homework Statement I was asked to draw a Simulink Model for the above (car suspension) system. m = 250kg k, spring constant = 70000N/m c, damping coefficient = 3000N/m/s Homework Equations If any equations are needed please let me know The Attempt at a Solution The question says to draw...

Homework Statement I was just wondering what was the general effect on phase and gain margins when a phase lead compensator was is added to a system. Homework EquationsThe Attempt at a Solution

"But writing X(S) = 1/s doesn't, because the righthand side is not a function of S, but a function of s, which is the complex variable in the Laplace domain. In the time domain, you wouldn't write: F(T) = sin(t) ?" I understand now. Thank you. I'm partway through finding the responses. Just to...