一种螺旋桨的气动声学设计与实验验证

作     者：李晓东 孙晓峰 胡宗安 

作者机构：北航螺旋桨研究发展中心 

出 版 物：《航空动力学报》 (Journal of Aerospace Power)

年 卷 期：1991年第6卷第4期

页      码：317-319页

摘      要：An aeroacoustical modification of a propeller is considered with the aim of great enhancement of its takeoff efficioncy and appropriate cutdown of its noise level when its blade number,blade hub and cruise efficiency are kept unchanged.A time domain method is applied to predicting near and far the sound *** iterative aeroacoustical and aerodynamical optimization an optimum design scheme has been *** two 1/3 scaled model propellers were made to simulate the original and modified propellers *** results of comparative ground experiments show that the OASPL(Overall Sound Pressure Level)decreases by 1 to 1 5 dB while other technical spesifications are met.

主 题 词：螺旋桨 气动声学 设计 

学科分类：08[工学] 0825[工学-环境科学与工程类] 

核心收录：

D　O　I：10.13224/j.cnki.jasp.1991.04.008

馆 藏 号：203535474...