Recent content by shuh

Looking at the root locus plot for the plant, it seems like the gain margin is really small to begin with. If I'm going to add a phase lead at high frequency at the cost of gain margin, to me it seems like might as well as use a PID controller to easily satisfy the requirement. So am I right to...

Homework Statement Homework EquationsThe Attempt at a Solution For the above modeled transfer function of the plant, I'm trying to design a compensator that satisfies some requirements. a. The maximum control bandwidth (0 dB crossover frequency) is 100 rad/s. b. The minimum phase...

Homework Statement The state space model of a nonlinear system is x'_1(t) = 2x^2_2(t) - 50 x'_2(t) = -x_1(t) - 3x_2(t) + u(t) where x_1(t) and x_2(t) are the states, and u(t) is the input. The output of the system is x_2(t). Find the zero input response (u(t) = 0) of this system linearized at...

Because this is what may happen in the real world http://photos-974.ll.facebook.com/photos-ll-sf2p/v143/24/40/711375974/n711375974_204141_7854.jpg

And yes, this can be solved very easily. Set u = x^2 + 7x + 10 u + \sqrt{u + 2} = 0 \sqrt{u + 2} = -u u + 2 = u^2 u^2 - u - 2 = 0 u = 2, -1 Now set the each corresponding u to two different equations x^2 + 7x + 10 = 2 x^2 + 7x + 10 = -1 Solve for x.

Why are you using convolution when you are only asked to graph the functions?

You actually can have the states as high-impedance. In your case, it would be 16'h? or 16'hz would work. There is no such thing as unsized hex number. Even if you forget to declare the size, by default, verilog would size it as 32 bit.

This is really impressive.. Can we have it as one of the best homework threads?

I'm not sure how you got BC,CD,FE,DE as zero force members. Here are couple more you may be able to find- Sum up the forces in x and y directions in joint E. What does that tell you about CE? Then sum up the forces at joint C. What does that tell you about CF?