# 2nd order ODE (Control Systems)

#### ChemEng

##### New member
I'm trying to solve this equation analytically, but I can't even find the auxiliary equation or general solution!

Km = 0.5
C*e = 0
K2 = 0.03
K1 = 0.05
x* = 49

#### Ackbach

##### Indicium Physicus
Staff member
What is $\tau$ and what is $\zeta$? If they do not depend on $t$, then this equation is fairly straight-forward (just assume $C_{m}=e^{kt}$, plug in, and solve for $k$, followed by finding a particular solution of the form $C_{m}=A$.)

#### Prove It

##### Well-known member
MHB Math Helper
I'd also advise substituting the values for your parameters, the equation will be much easier to read at least...