螺旋桨负荷噪声研究

详细信息

Predicition of marine propeller loading noise

摘要: 运用非定常升力面方法和Goldstein声相似理论研究了螺旋桨的负荷噪声特性,给出了方法和理论结果的简要介绍.并运用数值计算方法对螺旋桨负荷噪声进行了计算分析,得到了一些具有工程实际意义的数值计算结果。

Abstract: Propeller loading noise is the main part of the propeller noise. Based on the unsteady lifting surface method and the Goldstein's acoustic analogy Theory, we studied the characteristics of the propeller loading noise. The introduction of the method and some theoretical analysis results are given in this paper. Numerical analysis of the propeller loading noise was also done in this paper, and some useful results which are practical for engineering are presented in this papre.