关键词: 复合材料, 噪声控制, 动力响应

Abstract: In this paper, the performance of noise transmission for the antinoise and forcestand-ing combined structures made of the composite sandwich materials is analysed, and an optimal program is compiled by using the finite element method for computing nonlinear dynamic responses. A series of experiments is carried out. The results show that when those structures are designed in consideration of the antinoise technique, the structures with high noise transmission loss and light weight, which are used for both aviation and civil engineering, can be achieved. A number of problems, such as the increase of weight and high cost of supplementary mending, will be encountered if the measures of noise control are to be used for an assembled airplane. Those problems may be solved when the composite sandwich structures designed by this technique are used.

Key words: mmposile, noise control, tiynamiv response