is there anyone on this forum that is really proficient in matlab?

 

I'm not proficient by any means, but I can do simplistic commands.

 

Not proficient either, but I know some stuff. If its for a 100/200 level engineering class I can probably help. If I can't I can probably find the answer online. I've been writing programs like once a week this semester. I'm not at all good with Simulink though but I'm trying to learn but it is confusing as hell.

 

yeah this is a 300 level course...

performance enhancement of dynamic systems (controls 2)

dealing with the s domain, bode, nyquist, root locus, poles, zeros, etc.

i figured most of it out

 

I only know basics of matlab, but I can kick Mathcad square in the nuts.

 

well its a type 0 system.... unity feedback with a controller of (K/100) and actuator at (1/1000) the plant at G(s) and a spring at (82300)...

i need to find the dc gain (K) for 38% OS.... someone help with that?


G(s) = (0.7883(s + 53.85)) / (s^2 + 15.47s + 9283)(s^2 + 8.119s + 376.3)

 

I don't really have any idea what that means. I'm EE so I'm not to familiar with ME stuff. G(s) looks like some sort of transfer function. However, transfer functions are usually denoted by H. Are you using Simulink? I know that Simulink has a block set for transfer functions. There is also a block for amplifiers (used to apply a gain in a electronic system). Actually there are a bunch of different blocks you can use to simulate many different types of systems. If you get the toolbox corresponding to the system you are building (there are signal processing, RF, Diff EQ, and a bunch of other toolboxes with specific blocks) it might be easier to do the simulation. The toolboxes are $$$$ so you might want to check if your college has them installed on the computers.

 

wtf is this foreign language?

 

Pretty much. Its like physics and math had a very complicated love child.

 

i have matlab on my laptop, downloaded it off our server