View source for Mechanical-electrical analogies


There's 1:1 correspondence between mechanical and electrical quantities

Basic:
* voltage U in volts V ~ force F in newton N ~ moment M in Nm
* current I in ampere A ~ speed v in m/s ~ angular speed omega in rad/s
* power P=U*I ~ P=F*v ~ P=M*omega
* resistance R=U/I ~ R'=F/v ~ R''=M/omega -- (conductivity just the inverse)
Electrostatic:
* charge Q in As ~ position x in m ~ angle alpha in rad
* capacity C in As/V ~ linear-stiffness k in N/m ~ angular-stiffness in kappa in Nm/rad
* electric field E in V/m ~ ...
* dielectric constant epsilon in (As)/(Vm) ~ ... ?
* D ...
Magnetostatic: 
* ? ... ~ mass m in kg ~ moment of intertia kg*m^2
* ? ... ~ linear impulse kg*m/s ~ ...

Note that there are also 1:1 corresponcences to the inverse quanities (switching current with volatge - everything else follows automatically). 

One can build mechanical circuitry (out of [[mechanical circuit element]]s) just as one does with electrical elements.

== Related ==

* [[Mechanical pulse width modulation]]
* [[Mechanical circuit element]]