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Control System Engineering - Block diagram reduction Exam problem
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GregLocock
Automotive
Why weren't you paying attention in lectures?
It's just algebra
Using lowercase to represent the output of each stage
o=Ov
b=Bo
r=Ro=ROv
f=F(p+r)
m=M(b-a)
etc
finally after substituting and eliminating you'll be able to write n/v, which is Y/V, which is what you want, in terms of the block names.
You are missing a sign on the rhs of the page and at least 2 arrowheads.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376
It's just algebra
Using lowercase to represent the output of each stage
o=Ov
b=Bo
r=Ro=ROv
f=F(p+r)
m=M(b-a)
etc
finally after substituting and eliminating you'll be able to write n/v, which is Y/V, which is what you want, in terms of the block names.
You are missing a sign on the rhs of the page and at least 2 arrowheads.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376
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Seriously? How did you even get into college, then? Given that this looks like 2nd year EE course material, you did ZERO math in 1st year?
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
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- #7
??? You've had ZERO algebra? What engineering school allows zero math experience? You've NEVER solved simultaneous equations, EVER?
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
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- #9
The steps seem pretty clear, so you should be able to extrapolate from that example to the current problem, so what's the issue?
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
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But i need to write Y(output)/V(input) function, these equasions are very confusing.
Y= fN = (F(p+r))N = F(P(z+m+f)+ROv)
p=P(z+m+f)
r = Ro=ROv
b = Bo=BOv
o = Ov
f = F(p+r)
m = M(b-a)
a = A ???
z = Z ???
Can you please show me the solution for a and z, thank you, this methodical way is quite hard.
Thanks for support
Y= fN = (F(p+r))N = F(P(z+m+f)+ROv)
p=P(z+m+f)
r = Ro=ROv
b = Bo=BOv
o = Ov
f = F(p+r)
m = M(b-a)
a = A ???
z = Z ???
Can you please show me the solution for a and z, thank you, this methodical way is quite hard.
Thanks for support
GregLocock
Automotive
You've been shown two approaches by your prof, use them. The method I described is how I'd do it starting from zero, but it is not elegant.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376
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