【摘要】 基于统计能量分析方法建立了国产某型轿车的统计能量分析模型。预测了给定激励条件下轿车室内的噪声水平,并给出主要的能量传递路径。利用优化方法对能量传递路径上的关键部件进行了降噪处理,取得了良好的降噪效果。分析表明,降噪措施和研究方法是可行的。更多还原

【Abstract】 The establishment of a car model based on the theory of SEA(Statistical Energy Analysis) is discussed. The interior noise of the car is calculated under the certain power, and the main path of the energy flow is obtained. The treatments for noise debasing are used on the main parts by the optimization method, and the final effects are satisfying. It is indicated that the noise debasing treatments and the research method are feasible.更多还原