The Prediction and Analysis of Helicopter Rotor Rotation Noise in Hover

被引：0

作者：

Liu, Dawei ^{[1
]}

Huang, Peilin ^{[1
]}

Ji, Jinzu ^{[1
]}

机构：

[1] Beihang Univ, Shool Aeronaut Sci & Engn, Beijing 100191, Peoples R China

来源：

ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY III, PTS 1-4 | 2013年 / 397-400卷

关键词：

FW-H equation; Farassate1A; WOPWOP; rotation noise; directivity;

D O I：

10.4028/www.scientific.net/AMM.397-400.291

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A prediction program for analysis of helicopter rotor rotation noise was developed based on FarassatlA formulation. The acoustic prediction program was validated by the comparison with the WOPWOP program results in the literature.The loads input for the acoustic calculation are obtained from CFD calculation. The directional characteristic analysis was conducted by this program. Some calculations were conducted for evaluating the influence of rotor parameters including rotor speed, blade pitch,and blade dihedral for the helicopter rotor rotation noise in hover. The results show that some proper changes of rotor parameters can bring benefit in thickness and loading noise of helicopter rotor. Several conductive conclusions were summarized for the helicopter rotor noise reduction.

引用

页码：291 / 294

页数：4