Analysis of the Sound Field Structure in the Cabin of the RRJ-95NEW-100 Prototype Aircraft

被引：0

作者：

Lavrov, Vladimir ^{[1
]}

Moshkov, Petr ^{[2
]}

Strelets, Dmitry ^{[2
]}

机构：

[1] IRKUT Corp Reg Aircraft, Moscow 115280, Russia

[2] Natl Res Univ, Moscow Aviat Inst, Moscow 125993, Russia

来源：

AEROSPACE | 2023年 / 10卷 / 06期

关键词：

aircraft; pressure fluctuations; cabin noise; RRJ-96NEW-100; aeroacoustics; WALL PRESSURE-FLUCTUATIONS; MODEL PREDICTIONS; ENGINE NOISE; WINGS;

D O I：

10.3390/aerospace10060559

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The results of in-flight experiments to determine the structure of the sound field in the cabin and pressure fluctuation fields on the surface of the fuselage of the RRJ-95NEW-100 prototype aircraft are presented here. Wall pressure fluctuation spectrums are obtained for three zones of measuring windows (forward, center, and rear fuselage) in cruising flight mode. The effect of the jet on the pressure fluctuation levels in the tail fuselage is considered. For an aircraft without an interior, the contribution of the main sources to the total intensity calculated through A-weighted overall sound pressure levels is determined. It has been determined that the main noise sources in the cabin of the RRJ-95NEW-100 prototype aircraft in cruising flight mode are pressure fluctuation fields on the fuselage surface (turbulent boundary layer noise) and the air conditioning system. The ratio between the sources varies along the length of the cabin.

引用

页数：13

共 46 条

[41] New Type Water Cooling Structure Design and Temperature Field Analysis of High Power Density Axial Flux Permanent Magnet Motor
Wu, Yue
Zhang, Zhifeng
Ping, Jiaqi
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering, 2021, 41 (24): : 8295 - 8304
[42] Bis(L-N,N-dipropylalaninato)copper(II) -: X-ray crystal structure, the crystal structure prediction and conformational analysis with a new force field
Kaitner, B
Paulic, N
Pavlovic, G
Sabolovic, J
POLYHEDRON, 1999, 18 (17) : 2301 - 2311
[43] Analysis of shock absorption performance of a new staggered story isolation structure under far-field long-period ground motions
Zhou, Wangwang
Huang, Chao
Li, Xiaoqing
Liu, Dewen
Zhang, Yafei
Fang, Sitong
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2024, 177
[44] A NEW DOCKING PROGRAM (SANDOCK) IDENTIFIES LIGANDS WITH Kd VALUES UP TO 100nM AND BINDING MODES CONFIRMED BY X-RAY STRUCTURE ANALYSIS.
Walkinshaw, M. D.
Burkhard, P.
ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 1996, 52 : C91 - C91
[45] DEVELOPMENT OF A MICROAREA STRUCTURE-ANALYSIS INSTRUMENT (ANALYTICAL ELECTRON-MICROSCOPE WITH A FIELD-EMISSION ELECTRON SOURCE) .1. OPERATING CHARACTERISTICS OF A 100 KV MULTI-ACCELERATOR FIELD-EMISSION ELECTROM GUN
KIMURA, C
TOMITA, M
ENDO, J
SIMIZU, K
KOREEDA, A
JOURNAL OF ELECTRON MICROSCOPY, 1983, 32 (03): : 281 - 282
[46] Synthesis, crystal structure, vibrational spectral analysis and Z-scan studies of a new organic crystal N,N′dimethylurea ninhydrin: A scaled quantum mechanical force field study
John, Jerin Susan
Sajan, D.
Umadevi, T.
Chaitanya, K.
Sankar, Pranitha
Philip, Reji
OPTICAL MATERIALS, 2015, 48 : 233 - 242

← 1 2 3 4 5 →