
Sound Patterns from Cylindrical Shells 147
© 2011 by Taylor and Francis Group, LLC
M = an even integer greater than the largest of Ma
C8 = C/ℓ, where c is the x coordinate at which the lateral force is acting
W = peripheral coordinate φ (see Figure7.6)
U1, U2, U3 = minimum, maximum, and increment of W
Q5, Q6, Q7 = minimum, maximum, and increment on C8
K9, L9 are scale factors that can be adjusted
S6 = θ angular coordinate in the spherical coordinate system
S7, S8, S9 = minimum, maximum, and increment on S6
D = Poisson’s ratio
Q = largest n in the series ∑ ∑
= =n
Q
m P
P
mn
A m x n
0 1
2
sin ( )cosπ ϕ/
Q9 = a constant value of 0.00001 (a program constant)
D1 = ...