基于VA one软件平台对某散货船尾部试验模型进行噪声预报及控制效果分析。分析中采用的是统计能量分析法(SEA),在验证计算方法正确的基础上,首先采用新规范标准对10个主要舱室的噪声水平进行预报研究和比对,分析其中舱室噪声超标的可能原因。然后对该分析模型进行不同控制技术的研究分析——吸声技术、隔声技术和阻尼减振技术,并比较在不同位置敷设阻尼材料的降噪程度。研究表明:采用吸声、隔声和阻尼减振技术对降低船舶舱室噪声有显著效果,在激励源舱室敷设阻尼材料,仅对非激励源舱室降噪效果明显,且约束阻尼要比自由阻尼结构对噪声控制效果更有优势。研究结论可以作为船舶舱室噪声实际控制的参考。
In this paper, according to the VA one software platform and statistical energy analysis (SEA), a research was studied the noise prediction and control technology of a bulk carrier. By using the statistical energy analysis method in the research process (SEA), based on the verification of correct calculation method. Firstly, according to the new standard, the noise level of 10 main cabin were predicted, compared, and analyzed the reason of the cabin noise may exceed the standard. At the end of this model was studied in three different control methods: the sound absorption, sound insulation and vibration damping technology, and compared the degree of noise reduction in different positions for damping material. Research shows that: the three control methods have significant effect to reduce cabin noise. The conclusion of this paper can as the actual control of the ship cabin noise.
2017,39(8): 22-27 收稿日期:2016-09-28
DOI:10.3404/j.issn.1672-7649.2017.08.005
分类号:U661.44
作者简介:冯博(1992-),男,硕士研究生,研究方向为船舶舱室噪声预报及控制技术
参考文献:
[1] 张辉, 张新波.《船上噪声等级规则》修订案解析及应对措施[J].船舶标准化工程师, 2013, 46(01): 28-29.ZHANG Hui, ZHANG Xin-bo.The influence on new ships of code on noise levels on-board ships[J].Ship Standardization Engineer, 2013, 46(01): 28-29.
[2] International Marine Organization (IMO)[J].Code on noise levels on board ships (IMO A468).1981: 1.
[3] 李卓亮, 季振林.车客渡船舱室噪声预报与控制[J].中国舰船研究, 2014, 9(5): 93-98, 120.LI Zhuo-liang, JI Zhen-lin.Cabin noise prediction and control of car-passenger ferry[J].Chinese Journal of Ship Research, 2014, 9(5): 93-98, 120.
[4] 于大鹏, 赵德有, 汪玉.船舶声学建模和阻尼结构对舱室噪声影响研究[J].船舶力学, 2010, 14(5): 539-548.YU Da-peng, ZHAO De-you, WANG Yu.Influence of damped material and the ship model of acoustic on the ship cabin noise [J].Journal of Ship Mechanics, 2010, 14(5): 539-548.
[5] 金学之, 吴卫国.高速船舷外水对舱室噪声传播影响[J].船海工程, 2009(6): 46-48.JIN Xue-zhi, WU Wei-guo.Study on the out-shipboard fluid affecting the cabin noise propagation for high speed ship[J].Ship & Ocean Engineering, 2009(6): 46-48.
[6] 胡忠平.船体结构噪声的有限元计算分析[J].船舶, 2008, 19(3): 30-33.HU Zhong-ping.Finite element analysis on hull structural noise[J].Ship & Boat, 2008, 19(3): 30-33.
[7] 杨德庆, 金咸定, 周永青.浮式生产储油船上层建筑振动噪声数值预报[J].上海造船, 2003(2): 15-19.YANG De-qing, JIN Xian-ding, ZHOU Yong-qing, et al.Numerical prediction of vibro-acoustics in superstructure of FPSO[J].Shanghai Shipbuilding, 2003(2): 15-19.
[8] 杨群.某舱室模型高频噪声预报及控制技术研究[D].哈尔滨: 哈尔滨工业大学, 2015.YANG Qun.High frequency noise prediction and control technology study of certain cabin model[D].Harbin: Harbin Institute of Technology, 2015.
[9] 于大鹏.应用统计能量分析方法预报船舶舱室噪声[D].大连: 大连理工大学硕士论文, 2007.YU Da-peng.Study on the prediction of shipyard cabin noise with statistical energy analysis[D].Dalian: Dalian University of Technology, 2007.
[10] 孙增华, 王丹, 于洋, 等.船舶舱室噪声的工程预报方法[J].船舶工程, 2014, 1.SUN Zeng-hua, WANG Dan, YU Yang, et al.Engineering prediction approach for shipboard cabin noise[J].Ship Engineering, 2014, 1.
[11] MAGRAB E B.Environmental noise control[M].John Wiley & Sons, 1975.
[12] 俞微, 沈荣瀛.浮筏隔振系统功率流的实验研究[J].振动、测试与诊断, 1996, 16(2): 44-48.YU Wei, SHEN Rong-ying.Experimental study of power flow of a raft vibration-isolating system[J].Journal of Vibration.Measurement & Diagnosis, 1996, 16(2): 44-48.