Investigations on Acoustic Processing of Cabin Wall Panels for Turboprop Aircraft
-
摘要: 以某型国产涡桨飞机为研究对象,基于统计能量法(SEA),以VA-One软件为计算平台,通过计算比较某型涡桨飞机客舱在加单侧声载荷情况下的声压级,对不同声学处理工况下客舱壁板的隔声性能进行了对比研究。结果表明,采取声学处理比无声学处理的客舱声压级最高可降低约27 dB (A);比较4种声学处理所对应的客舱声压级,结果表明,方式1、方式2和方式3这3种声学处理方式对应的客舱声压级差别很小;增加阻尼材料C3202-25(方式4)比未使用阻尼材料(方式1、2、3)客舱声压级可降低约0.4~0.5 dB (A)。因此,在壁板上使用阻尼材料是一种有效的声学处理方式。
-
关键词:
- 涡桨飞机 /
- 统计能量法(SEA) /
- VA-One /
- 隔声 /
- 声压级
Abstract: Based on statistical energy analysis (SEA) and VA-One software platform, the sound pressure level of domestic turboprop aircraft was obtained. By comparing the sound pressure level in the condition of unilateral acoustic load for the turboprop aircraft, the performance of sound insulation for the wall panels of turboprop aircraft was investigated at different acoustic processing conditions. The results show that the pressure level of cabin can decrease by 27 dB(A) by wall panel acoustic treatment; By comparing the sound pressure level in the cabin at four kinds of acoustic processing, the results show that the differences between process 1, process 2 and process 3 are very small; The pressure level of cabin can reduce about 0.4~0.5 dB(A) with the damping material C3202-25(process 4). Therefore, it is an effective way of acoustic processing to use the damping material on the wall panels. -
[1] 黄东林,杨敏.飞机噪声对机坪地勤人员听力的影响[J].中国医药指南,2015,13(9):283 Huang D L, Yang M. The influence of aircraft noise on the hearing of ground staff[J]. Guide of China Medicine, 2015,13(9):283(in Chinese) [2] 程道来,仪垂杰,梁祖峰.飞机噪声及防治对策的研究[J].噪声与振动控制,2005,25(5):47-51 Cheng D L, Yi C J, Liang Z F. Research on airplane noise and the strategy of control[J]. Noise and Vibration Control, 2005,25(5):47-51(in Chinese) [3] 吴永祥,柳小林,王秉光,等.飞机噪声引起的永久性听力变化[J].解放军预防医学杂志,1990,(3):226-230 Wu Y X, Liu X L, Wang B G, et al. Noiseinduced permanent threshold shift in aircrafts[J]. Journal of Preventive Medicine of Chinese People's Liberation Army, 1990,(3):226-230(in Chinese) [4] 张正平,任方,冯秉初.飞机噪声技术研究-工程解决方法[J].航空学报,2008,29(5):1207-1212 Zhang Z P, Ren F, Feng B C. Noise task of aircraft-resolve in engineering[J]. Acta Aeronautica et Astronautica Sinica, 2008,29(5):1207-1212(in Chinese) [5] 张洪涛,董宁娟,秦浩明.大型商用飞机舱内噪声测试分析[J].结构强度研究,2012,(3):37-39 Zhang H T, Dong N J, Qin H M. Noise test and analysis of large commercial aircraft cabin[J]. Structural Strength, 2012,(3):37-39(in Chinese) [6] 裘进浩,袁明,季宏丽.大型飞机舱内振动噪声主动控制技术的研究及应用[J].航空制造技术,2010,(14):26-29 Qiu J H, Yuan M, Ji H L. Research and application of vibration noise control technology in large aircraft cabin[J]. Aeronautical Manufacturing Technology, 2010,(14):26-29(in Chinese) [7] 李江红,黎中伟.运七飞机舱内噪声主动控制实验研究[J].航空学报,1997,18(5):627-628 Li J H, Li Z W. Experimental study on the active noise control in the cabin of Y 7[J]. Acta Aeronautica et Astronautica Sinica, 1997,18(5):627-628(in Chinese) [8] 姚伟.新舟60飞机(MA60)的使用情况及运营经济性分析[C]//新世纪中国民用飞机产业发展研讨会论文集.哈尔滨:中国航空学会,2001 Yao W. The usage and operation efficiency analysis of Xinzhou 60 aircraft (MA60)[C]//Proceedings of Seminars for Development of Chinese Civil Aircraft Industry. Harbin:Air China Society, 2001(in Chinese) [9] 巨浪.峰回路转重回大道-民用涡桨飞机渐抬头[J].航空世界,2008,(8):34-35 Ju L. Development of civil turboprop aircraft[J]. Airline World, 2008,(8):34-35(in Chinese) [10] 秦浩明.飞机座舱壁板及舱段结构声学试验技术的新发展[J].结构强度研究,2010,(4):18-24 Qin H M. New developments of acoustic tests for aircraft cockpit wall plate and tank structure[J]. Structural Strength, 2010,(4):18-24(in Chinese) [11] 董宁娟,潘凯.基于VA-One的湍流边界层噪声计算方法的仿真分析[J].科学技术与工程,2012,12(32):8798-8802 Dong N J, Pan K. VA-One of a turbulent boundary layer noise calculation method-based simulation analysis[J]. Science Technology and Engineering, 2012,12(32):8798-8802(in Chinese) [12] Lyon R H. Theory and application of statistical energy analysis[M]. 2nd ed. Amsterdam:Elsevier, 2014 [13] Anderson J D. Fundamentals of aerodynamics[M]. 5th ed. Singapore:McGraw-Hill, 2011:380-380
点击查看大图
计量
- 文章访问数: 151
- HTML全文浏览量: 15
- PDF下载量: 6
- 被引次数: 0