Read with ppt on "Helmholtz Resonator"

1. The above treatment allows us to establish the following mechanical,
electrical and acoustical analogues:
Mechanical Electrical Acoustical
Mass m
Inductance L Inertance M
1
Acoustic
compliance C
Mechanical Capacitance C
compliance Cm=1/s
2
Resistance R
Resistance Rm Resistance R
3
d 2x dx
m 2
+ R' + kx = f 0 sin pt ……..1
dt dt
d 2q dq q
L 2
+R + = E 0 sin pt ……..2
dt dt C
ρ 0 l ' d 2 X ρ 0 ck 2 dX ρ 0 c 2
+ + X = Pe jωt ……..3 (where l’=l + end-correction)
S dt 2 2π dt V