A subinterval response surface method for frequency response analysis of structural-acoustic system with uncertain-but-bounded parameters

For improving the accuracy of predicting the lower and upper bounds of the frequency response of structural-acoustic system, based on the response surface method we proposed a new subinterval response surface method to deal with problems with large uncertain level. One numerical example is conducted to validate the effectiveness of the proposed method. The results show that the proposed method is more efficient than Monte Carlo method (MCM) based on the original numerical model with good accuracy.