how can convert 2nd order ODE with two variables to state space?












-1














how can convert 2nd order ODE with two variables to state space?



d2y/dt2= ay(t)+bx(t)+cu(t),
y(t)== variable(1) and output,
x(t)==variable(2),
u(t)==input










share|cite|improve this question






















  • really my system is complex and this is just apart of it for not confusing the other
    – Isaac
    Nov 22 at 4:05










  • Really I have the below equation and I want to design some control technique by matlab in command window , but I cant write 2nd order ode equation with two variables in MATLAB
    – Isaac
    Nov 22 at 5:17










  • The standard "trick" is to introduce a new variable, say $z$. Then put $frac{dy}{dt} = z$ and $frac{dz}{dt} = ay(t) + bx(t) + cu(t)$.
    – Fabio Somenzi
    Nov 22 at 5:25










  • so, how I represent this equation in state space model?
    – Isaac
    Nov 22 at 5:32
















-1














how can convert 2nd order ODE with two variables to state space?



d2y/dt2= ay(t)+bx(t)+cu(t),
y(t)== variable(1) and output,
x(t)==variable(2),
u(t)==input










share|cite|improve this question






















  • really my system is complex and this is just apart of it for not confusing the other
    – Isaac
    Nov 22 at 4:05










  • Really I have the below equation and I want to design some control technique by matlab in command window , but I cant write 2nd order ode equation with two variables in MATLAB
    – Isaac
    Nov 22 at 5:17










  • The standard "trick" is to introduce a new variable, say $z$. Then put $frac{dy}{dt} = z$ and $frac{dz}{dt} = ay(t) + bx(t) + cu(t)$.
    – Fabio Somenzi
    Nov 22 at 5:25










  • so, how I represent this equation in state space model?
    – Isaac
    Nov 22 at 5:32














-1












-1








-1







how can convert 2nd order ODE with two variables to state space?



d2y/dt2= ay(t)+bx(t)+cu(t),
y(t)== variable(1) and output,
x(t)==variable(2),
u(t)==input










share|cite|improve this question













how can convert 2nd order ODE with two variables to state space?



d2y/dt2= ay(t)+bx(t)+cu(t),
y(t)== variable(1) and output,
x(t)==variable(2),
u(t)==input







mathematical-physics






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share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked Nov 22 at 3:44









Isaac

11




11












  • really my system is complex and this is just apart of it for not confusing the other
    – Isaac
    Nov 22 at 4:05










  • Really I have the below equation and I want to design some control technique by matlab in command window , but I cant write 2nd order ode equation with two variables in MATLAB
    – Isaac
    Nov 22 at 5:17










  • The standard "trick" is to introduce a new variable, say $z$. Then put $frac{dy}{dt} = z$ and $frac{dz}{dt} = ay(t) + bx(t) + cu(t)$.
    – Fabio Somenzi
    Nov 22 at 5:25










  • so, how I represent this equation in state space model?
    – Isaac
    Nov 22 at 5:32


















  • really my system is complex and this is just apart of it for not confusing the other
    – Isaac
    Nov 22 at 4:05










  • Really I have the below equation and I want to design some control technique by matlab in command window , but I cant write 2nd order ode equation with two variables in MATLAB
    – Isaac
    Nov 22 at 5:17










  • The standard "trick" is to introduce a new variable, say $z$. Then put $frac{dy}{dt} = z$ and $frac{dz}{dt} = ay(t) + bx(t) + cu(t)$.
    – Fabio Somenzi
    Nov 22 at 5:25










  • so, how I represent this equation in state space model?
    – Isaac
    Nov 22 at 5:32
















really my system is complex and this is just apart of it for not confusing the other
– Isaac
Nov 22 at 4:05




really my system is complex and this is just apart of it for not confusing the other
– Isaac
Nov 22 at 4:05












Really I have the below equation and I want to design some control technique by matlab in command window , but I cant write 2nd order ode equation with two variables in MATLAB
– Isaac
Nov 22 at 5:17




Really I have the below equation and I want to design some control technique by matlab in command window , but I cant write 2nd order ode equation with two variables in MATLAB
– Isaac
Nov 22 at 5:17












The standard "trick" is to introduce a new variable, say $z$. Then put $frac{dy}{dt} = z$ and $frac{dz}{dt} = ay(t) + bx(t) + cu(t)$.
– Fabio Somenzi
Nov 22 at 5:25




The standard "trick" is to introduce a new variable, say $z$. Then put $frac{dy}{dt} = z$ and $frac{dz}{dt} = ay(t) + bx(t) + cu(t)$.
– Fabio Somenzi
Nov 22 at 5:25












so, how I represent this equation in state space model?
– Isaac
Nov 22 at 5:32




so, how I represent this equation in state space model?
– Isaac
Nov 22 at 5:32















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