hi. I am having a problem with the state variable controller.I am tryn to locate closed poles in the left hand plane such that my output graph has no overshoot.I am modeling a spring and dashpot system.It has two masses.m1 and m2.My output of interset is the diplacement of m1(is the bottom mass) calle x.I have modelled the system in simulink and it is workn,but i am having difficulty in the controller part.I have designed the controller but i am getting overshoot on my output graph(x) which i dont want.I have choose poles (-2 -2 -4 -4) and it is stil not working.The follwing are my two state differential equations
m1 x =3D k (y =E2=80=93 x) + b (y =E2=80=93 x) =E2=80=93 (m1 + =E2=88=86 m= ) y . . . . SDE1
m2 y =3D F =E2=80=93 k(y-x) =E2=80=93 B ( y =E2=80=93x) =E2=80=93 m2y. . . = . .SDE 2
I chose B =3D 1,K =3D1. m2 =3D1. m1 =3D1. These equations i have modelled in simulink.please help with the state variable controller part.Thanx in advance