Research Article

A Flexible Polynomial Expansion Method for Response Analysis with Random Parameters

Table 3

Relative error of variance of the sound pressure’s imaginary parts yield by gPCEM.

MCM(Pa)gPCEM(Pa)Relative error

 0m1.5681.5540.9%
 0.2m0.1950.1931.0%
 0.5m1.2111.1961.2%
 1m1.1021.0871.4%