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车内低频噪声多次级声源有源消声系统研究
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摘要
随着人们对汽车乘坐舒适性要求的不断提高,车内噪声已经成为评价汽车
    乘坐舒适性的重要指标之一。传统的车内噪声控制主要采用优化汽车悬置隔
    振、隔声、吸声等被动降噪措施,这些降噪方法对降低车内中高频段噪声作用
    显著,可是,被动降噪方法不仅因车型不同而方法各异,而且降噪成本高、低
    频降噪效果差。相对被动降噪方法而言,主动消声方法具有低频降噪效果好、
    体积小、重量轻、易于控制等优点。随着现代控制技术的发展和电子芯片成本
    的下降,有源消声逐渐显示了被动降噪无法比拟的优越性。
    本文对车内低频噪声多次级声源有源消声系统进行了研究,提出了可在线
    训练动态神经网络模型的车内多次级声源自适应有源消声方法,构建了车内多
    次级声源有源消声系统,开发了车内自适应有源消声控制器和控制软件,并对
    某轻型客车车内噪声进行了有源消声试验。本项研究为车内噪声有源控制系统
    的实用化提供了基础,论文主要完成了以下研究工作:
    提出了利用动态神经网络方法作为有源消声系统的核心算法,根据最速下
    降原理对动态神经网络方法的权值修正进行了详细的推导,建立了反馈层输出
    到隐层权值之间的数字表达式,提高了运算精度。以实测的 5 路振动加速度信
    号为动态神经网络的输入信号,以正副驾驶员耳旁噪声信号作为待辨识信号,
    应用 Matlab/Simulink 工具箱对动态神经网络的各个参数进行了优化选择。并
    利用优化好的神经网络结构对不同转速下的车内噪声进行了辨识,结果表明所
    优化的网络结构简单、参数匹配合理,能够满足车内噪声主动控制的要求。
    建立了车内多次级声源有源消声系统模型并研究了车内有源消声的控制
    策略。提出了适合车内多次级声源有源消声系统的多通道动态神经网络模型算
    法(Multi-channel Dynamic Neural Network,简称 MDNN)。并在此基础上对
    多次级声源有源消声系统中的声学路径问题进行了研究,提出了用抵消路径网
    络对声学路径进行拟合的方法。由于动态神经网络具有实时性强的特点,该算
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    摘要
    法可实时辨识车内初级噪声信号和抵消路径, 并可进行动态神经网络的实时在
    线训练,提高了系统适应汽车行驶中工况变化的能力,增强了系统的适应性和
    实用性。
     利用 Matlab/Simulink 工具箱,应用所提出的 MDNN 算法,构建了车内双
    次级声源有源消声系统仿真模型,以实测的各点振动加速度信号和车内 2 通道
    的噪声信号为基础数据对有源消声系统进行了仿真分析。结果表明,该系统有
    良好的消声效果和稳定性。在不同发动机转速情况下,本文所构建的车内多次
    级声源有源消声系统运行稳定、降噪效果显著,最大消声量可达到
    17.8dB(Lin)。
     对双次级声源有源消声系统进行了设计。对构成双次级声源有源消声系统
    的主要部件:加速度传感器、电荷放大器、误差传声器、误差传声器前置放大
    器、DSP 集成系统、功率放大板、次级声源扬声器等硬件进行了特性分析及
    选取。以 DSP 作为核心硬件研制了可实现双次级声源有源消声功能的自适应噪
    声主动控制器。开发了系统的控制软件,给出了系统控制流程。以某轻型客车
    为试验对象构造了车内双次级声源有源消声系统。
     为了克服理论分析方法难以对车内复杂空间声场进行准确描述的缺点,提
    出了用试验的方法来分析次级声源和误差传声器的布放问题。着重分析研究了
    车内双次级声源布放、次级声源与误差传声器的相对位置对车内消声区域和消
    声效果的影响。结果表明:当误差传声器与次级声源的数目相同、误差传声器
    位于次级扬声器的中心线上且与次级声源相距 0.2 米左右、两个次级声源相对
    布置时消声效果最好。受次级声源本身特性和声波传播特性的限制,车内有源
    消声系统的消声空间具有局域性,当需要对多个司乘人员所在的局域空间进行
    消声时,应采用多次级声源系统。考虑到车内次级声源和误差传声器布置的可
    行性,给出了客车、货车和轿车中次级声源和误差传声器的可行布置方案。
     结合国标 GB1496-79 的有关规定,对本文所提出的 6 种次级声源和误差
    传声器布放方案的消声效果进行了评价,为局域空间有源消声效果的评价提供
    了一种尝试。
     利用车内双次级声源有源消声系统,对车内低频噪声进行了有源消声试
    验,对两组最佳次级声源布置方案的有源消声区域进行了深入的研究和探讨。
    结果表明:在发动机转速为 1920r/min 时,有源消声系统能够在一定区域内都
    达到较为明显的消声效果;在正副驾驶员双耳经常能够到达的区域内,消声量
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    吉林大学博士学位论文
    超过了 10dB(Lin)。
     为了考察在不同发动机转速,以及不同车速道路行驶条件下的消声效果,
    在不同发动机转速以及不同被试车行驶速度下,在某轻型客车内进行了有源消
    声试验。结果表明,本文开发研制的有源消声系统能够在各种稳态工况下都实
    现良好的消声效果。在不同发动机转速下,各误差传声器处的总消声量在 11.6
    dB(Lin)~16.4dB(Lin)之间。在以不同车速行驶的工况下各误差传声器处的总
    消声量也达到了 8.6
The interior noise in automotive cabin has been one of the important
    indexes used to evaluate the ride comfort performance, as a result of the
    increasing requirements of automotive performances. Now, the common
    passive reduction noise measures in automobile, such as noise elimination,
    sound absorption, vibration and sound isolation, etc, have good effect on
    reducing the middle and high frequency noise. But when using the
    above-mentioned measures to eliminate the vehicle interior noise, the
    different methods must be applied on different types of vehicle, and these
    measures also be expensive and have little effect on low frequency. While
    the adaptive active noise control(AANC)is very effective on reducing low
    frequency, and AANC has the less bulk , lighter weight than the passive
    acoustic measures, and it is prone to control. Along with the development of
    the modern control technology and descend of the COMS chip’s price,
    AANC has more and more advantage than the common passive measures.
     Therefore, a vehicle interior adaptive active noise control system of
    multi-channel is researched in this paper. A vehicle interior adaptive active
    noise control method of multi-channel based on online training dynamic
    neural network model is proposed, and the AANC system of multi-channel
    is established based on this method. The corresponding adaptive active
    noise control program code is developed, and vehicle interior adaptive
    active noise control experiments are carried out. This research has
    provided a practicality base on applied work of the vehicle interior adaptive
    active noise control system. The main research works completed in this
    paper are as follows:
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    吉林大学博士学位论文
     After summarizing the feedforward active noise control system, a
    viewpoint that taking the DNN method as the key arithmetic of the active
    noise control is put forward. Based on the fastest declined theoretics, the
    weight modification of dynamic neural network method is deduced
    particularly, and the numeric expression between the feedback layer output
    and hide layer is set up, which improves the operate precision. The input
    signals of DNN are the real measured 5 kinds vibration acceleration signals
    and the being-distinguished signals are the noise signals beside the drivers’
    and co-pilots’ ear, Every parameter of the DNN has been optimized with
    applying the Matlab/Simulink toolbox. And making use of optimized nerve
    network structure, the interior noise in automotive cabin is distinguished on
    different rotate speeds. The results indicate that the optimized network has
    some excellences , such as simplified-structure, and reasonable
    parameter-matching, which can achieve the pre-desire of the paper .
     The model of vehicle interior multi-channel adaptive active noise
    control system is set up and the control strategy is put forward. Based on
    the control strategy of the above-mentioned model, the Multi-channel DNN
    arithmetic—MDNN is put forward, which suit to vehicle interior
    multi-channel adaptive active noise control. Then the sound path problem in
    multi-channel adaptive active noise control system is studied with this
    arithmetic, and a method in which this situation can be fit by counteracting
    path network is proposed. Due to this dynamic neural network structure
    being convenient for real-time application, the referent-signal and
    counteract path can be distinguished in real-time by the arithmetic, and the
    real online-practice of dynamic neural network can be carried out, which
    improves the ability of suiting to the situation alteration in driving, and has
    the strong suit-capability and practical- capability.
     Using Matlab/Simulink toolbox, based on the arithmetic MDNN, the
    mode of a vehicle interior adaptive active noise control system of
    dual-channel is designed, and utilizing the testing points’ signals of
    acceleration of vibration and the two noise signals in vehicle, the active
    noise control system is simulated. The results of s
引文
1 姚玉红等. 城市区域环境噪声对人心理和生理功能影响研究进展. 现代预防医学,
     2000,27(3)
    2 穆向东.汽车发动机噪声源的分析与控制.环保节能,1999.6
    3 徐兀编译,汽车振动和噪声控制,人民交通出版社,1987.7
    4 韩秀苓等. 有源噪声控制技术分析.应用声学,1994(7):7~13
    5 徐永成等. 有源消声技术与应用述评. 国防科技大学学报,2001,23(2):119~124
    6 Lueg. Process of Silencing Sound Oscillations. Genman Patent DRP ,1933,No.655 :
     508
    7 Lueg. Process of Silencing Sound Oscillations. US Patent ,1936,NO2043 :416
    8 Olson,HF.Electronic sound absorber.Journal of the Acoustical Society of
     America,1953(25):1130~1136
    9 李径定等. 汽车车内结构噪声新型控制方法试验研究. 汽车工程,2001,23(4)
    10 Nelson P A.The active minimization of harmonics enclosed sound fields.
     JSV,1987,117(2):158~163
    11 赵扬,虞和济. 评述主动噪声控制技术. 噪声与振动控制,1997,(4)
    12 陈端石等.噪声主动控制研究的发展与动向 .应用声学,2001,20(4):1~5
    13 Nelson P A,et al. Active Control of Sound. Academic Press,1992:379~410
    14 陈可安,马远良. 自适应有源消声与滤波-XLMS 算法及实现,应用声学,1992,12
     (4)
    15 韩秀苓. 舱室的有源噪声控制. 电声技术,1999,2
    16 Chaplin,G.B.B. The cancellation of repetitive noise and vibration. In
     Proceeding of inter-noise ,1980,Institute of Noise Control Engineering,699~
     702
    17 Sen M.Kuo. Active Noise Control System With Parallel On-Line Error Path
     Modeling Algorithm.Noise Cntrol Engineering Jurnal,1992,119~127
    18 S.J.ELLIOTT AND P.A.NELSON. Active Noise Control. IEEE SIGNAL PROCESSING
     MAGAZINE,1993,12~254
    19 陈克安、马远良著.自适应有源噪声控制.西北工业大学出版社,1993,27.
     -111-
    
    
    参考文献
    20 Guicking, D.Bronzel, et. Active adaptive noise control in cars. In
     Proceedings of Recent Advances in Active Control of Sound and Vibration.
     Technomic PublishingCo. , Inc. ,657~670
    21 陈瑞石. 动力机械振动与噪声学.上海:上海交通大学出版社,1996.124~186
    22 李克强等. 结构噪声主动控制原理及方法 . 声学技术,1998/ Vol.17.No.4
    23 Dohner .J.L, Shoureshi.R. Modal control of acoustic palnts. Jour of vibration, Acoustics,
     stress, and Reliability in Design, 1989(111), 326~330
    24 朱海潮,施引.有源噪声控制的新进展(I). 海军工程学院学报,1995(73)74~80
    25 朱海潮,施引.有源噪声控制的新进展(II).海军工程学院学报,1996(74):8~13
    26 常振臣等.车内噪声控制技术研究现状及展望.吉林大学学报(工学版),2002.4
    27 靳晓雄,胡子谷. 工程机械噪声控制学.上海:同济大学出版社,1997.85~150
    28 S.J.ELLIOTT AND P.A.NELSON. Active Noise Control. IEEE SIGNAL PROCESSING
     MAGAZINE,1993,12~254
    29 Nelson P A,et al. Active Control of Sound,Academic Press,1992,379~410
    30 杨楠,沙家正,吴启学. 单指向性声源的空间有源消声. 应用声学,1992,11(5):
     14—19
    31 马大猷编著,声学手册,科学出版社,1983
    32 马大猷. 噪声控制学. 北京:科学出版社,1987
    33 可安,马远良. 自适应有源消声与滤波—XLMS 算法及实现,应用声学,1992,12(4):
     27~33.
    34 李海英等. 一种封闭空间自适应有源噪声控制系统优化方法 .振动工程学报,2001/
     Vol.14.No.2
    35 王冲等.自适应空间有源消声最佳消声效果的实现.振动工程学报,1994/
     Vol.7.No.1
    36 吴亚峰等.螺旋桨飞机舱内噪声的主动控制 .声学技术,2001/ Vol.20.No.1
    37 陈端石等.噪声主动控制研究的发展与动向 .应用声学,2001,20(4):1~5
    38 刘恩泽,严济宽等. 噪声主动控制系统研究概况及发展趋势 .噪声与振动控制,1999
     (3)2~6
    39 徐永成等. 有源消声技术与应用评述. 国防科技大学学报,2001,23(2):119—124
    40 常振臣, 王登峰等. 车内噪声主动控制系统设计与试验研究[ J ]. 公路交通科技, 2003,
     20(6): 150-153
     -112-
    
    
    吉林大学博士学位论文
    41 张建南, 王登峰等. 基于神经网络方法的车内噪声自适应主动控制[ J ]. 汽车技术,
     2003 (10): 1-3
    42 常振臣,王登峰,郑联珠 等. 神经网络方法在车内噪声预测中的应用. 农业机械学
     报, 2003,34(1): 21-24
    43 许国贤.车辆内部噪声自适应有源控制理论及技术研究.清华大学博士学位论文,
     1995.4
    44 Elliott.S.J ,Stothers.IM. A multiple error LMS algorithm and its application
     to the active control of sound and vibration. IEEE Transactions on Acoustics,
     Speech, and Signal Processing, ASSP-35, 1423~1434.
    45 Sen M.Kuo. Active Noise Control System With Parallel On-Line Error Path
     Modeling Algorithm.Noise Cntrol Engineering Jurnal,1992,119~127
    46 Scott D. Snyder and Colin H. Hansen. The Effect on Transfer Function
     Estimation Errors on the Filtered-X LMS Algorithm .IEEE Transactions on
     Signal Processing,1994.vol.42,No.4.
    47 伍彩云等.噪声主动控制的进展及趋势 .沈阳工业学院学报,2002.3
    48 侯宏等.神经网络 BP 算法在有源消声中的应用 .西北工业大学学报,1999.2
    49 冯津伟,杜学超等. 空间有源消声的微机控制. 应用声学,1997,16(2)
    50 王念旭等,DSP 基础与应用系统设计.北京航空航天大学出版社,2001
    51 P.Sjostn. Expericences of an Adaptive Control System for Active Noise Control.
     Proceeding of Inter-noise 85,pp.595-598
    52 Nelson, P. A. Active Control of Sound. Academic Press, second printing, 1994.
    53 Fariba Fahroo. Optimal actuator sensor location for active noise regulator
     and tracking control problems. Journal of Computational and Applied
     Mathematics 114 (2000) 137-158
    54 任辉等.主动噪声控制声学通道的实验辨识 .应用声学,1996.vol.16,No.3.
    55 李江红等. 运七飞机舱内噪声主动控制实验研究.航空学报,1997/ Vo18.No.5
    56 Honing.M.L, Messerschmitt.D.G. Adaptive Filters:Structures, Algorithms, and
     Applications. Kluwer Academic: Hingham.MA 1984
    57 C.H.汉森, S.D.斯奈德 著,仪垂杰等译. 噪声和振动得主动控制,科学出版社 2002
    58 黄其柏. 工程噪声控制学. 武汉:华中理工大学出版社,1998
    59 Judd.J.S Neural network design and the complexity of leraning. The MIT, 1990
    60 I.M.Mujtaba , M.A.Hussain Application of neural networks and other learnig
     technologies in process engineeing Imperial college press 2001
     -113-
    
    
    参考文献
    61 徐丽娜. 神经网络控制. 哈尔滨工业大学出版社 1999.5
    62 郭建新. 厢式汽车车内噪声的试验研究 . 江苏理工大学学报 (自然科学版 ),
     1999/Vol2.No.4
    63 王国领.车辆封闭空间有源噪声控制的初步研究.清华大学硕士学位论文,1994.5
    64 张翔等. 自适应有源噪声控制算法的研究与实现. 北京理工大学学报,2002,
     Vol.22,No.1
    65 郭虎等. MATLAB 语言在控制系统仿真中的应用. 长沙电力学院学报 (自然科学版),
     1998,Vol.13,No.2
    66 T.BERGE. Active Noise Cancellation of Low Frequency Sound Inside Vehicle Cabs.
     Proceeding of Inter-noise 83,pp457-460
    67 Mohand Mokhtari, Michel Marie. MATLAB 与 SIMULINK 工程应用. 电子工业出版社,2002
    68 薛定宇,陈阳泉. 基于 MATLAB/Simulink 的系统仿真技术与应用.清华大学出版社,2002
    69 向小强. 传声器(一). 电声技术,2002(4)
    70 向小强. 传声器(二). 电声技术,2002(6)
    71 翁泰来. 最新修订的扬声器国家标准. 电声技术,1998(6)
    72 戴维·克拉克. 扬声器参数的精确测量(一). 电声技术,1997(9)
    73 戴维·克拉克. 扬声器参数的精确测量(二). 电声技术,1997(10)
    74 TMS320C3X User’s Guide, Texas Instruments, 1997
    75 TMS320C3X Source Debugger User’s Guide, Texas Instrument, 2000
    76 张雄伟,曹铁勇. DSP 芯片的原理与开发应用,电子工业出版社. 1997
    77 李刚. 数字信号微处理的原理及其开发应用,天津大学出版社.1995
    78 Jun-il Sohn, Minho Lee. Selective attention system using new active noise
     controller. Neurocomputing 31 (2000) 197-204
    79 Lucy liao,Mark A Gregory, “Algorithms for speech classification”,RMIT
     University Melbourne, Vibration 3001,Australia
    80 Optimized DSP Library for C Programmers on the TMS320C54x,SPRA480A
    81 Design Guidelines for the TLC320AD50,literature number SLAA087
    82 Middleton.R.H, Goodwin.G.C. Digital control and Estimation: A Unified Approach.
     Prentice Hall: Englewoode Cliffs, NJ
    83 Sergent,P.,Optimal placement of sources for active noise control, Acta acustica,
     1995(3):47-57
    84 Abom.M. Modal decomposition in ducts based on transfer function measurements
     -114-
    
    
    吉林大学博士学位论文
     between microphone pairs. Jour of Sound and Vibration. 1989(135):95~114.
    85 Hall.D.J, Ferren.W.B, Bernhard.R.J. Active control of radiated sound from ducts. In Active
     Noise and Vibration control. ASME Publication NCA . 1990(8):143~152.
    86 Elliott,S. Signal Processing for Active Control, Academic Press,London,2001
    87 Mollo.C.G, Bernhard.R.J. A generalized method for optimization of active noise controllers
     in three-dimensional spaces. AIAA paper. 1987:2705.
    88 李海英,陈克安,孙进才. 自由声场自适应有源消声中误差传声器的最优布放.西北
     工业大学学报, 1999(2):29~33.
    89 王冲等.自适应空间有源消声最佳消声效果的实现.振动工程学报,1994,Vol.7.No.
    90 Fuller.C.R. Analytical model for investigation of interior noise characteristics In aircraft
     with multiple propellers including synchrophasing . Journal of Sound and Vibration.
     1986(109):141~156.
    91 李海英等. 一种封闭空间自适应有源噪声控制系统优化方法 .振动工程学报,
     2001,Vol.14.No.2
    92 Holt.R.J. Advanced exhaust silencing .Automotive Engineering.1993(101):13~16.
    93 La Fontaine.R.F Shepherd.I.C. An experimental study of A broad band active attenuator
     for cancellation of random noise in ducts. Journal of Sound and Vibration.1983(90),351~
     362.
    94 Bullmore.A.J, Nelson,P.A, Elliott.S.J. Theoretical studies of the active control of
     propeller-induced cabin noise . Journal of Sound and Vibration. 1990(140):191~217.
    95 Snyder.S.D, Hansen.C.H. Using multiple regression to optimize active noise control
     system design. Journal of Sound and Vibration. 1991(148):537~542.
    96 nyder.S.D,Tanaka.N. On feedforward active control of sound and vibtation using
     vibration error signals. Journal of the Acoustical Society of America, submitted. 1992
    97 nyder.S.D, Hansen.C.H. The design of systems to actively control periodic sound
     transmission into enclosed spaces. Part2.Analytical model. Journal of Sound and
     Vibration.1994(170):451~472.
    98 imposn.M.A, Luong.T.M. Full scale demonstration tests of cabin noise reduction using
     active noise control. Proceedings of Internoise89. 1989:459~462.
    99 Silence.J.L Meeting the noise control needs of today’s aircraft. Noise and Vibration
     Wordwide.1991(7), 14-la.
    100 Snyder.S.D, Hansen.C.H. The design of systems to actively control periodic sound
     transmission into enclosed spaces. Part1.Analytical model. Journal of Sound and
     Vibration.1994(170):433~449.
    101 Nadim.M, Smith.R.A. synchronous adaptive cancellation in vehicle cabins. Proceedings
     of Internoise 83, 1983:461~464.
     -115-
    
    
    参考文献
    102 李江红等. 运七飞机舱内噪声主动控制实验研究.航空学报,1997/ Vo18.No.5
    103 冯津伟,沙家正. 空间有源消声的能量流研究. 声学学报. 1996(5):844-850.
    104 Warner.J.V, Bernhard.R.J. Digital control of sound fields in three-dimensional enclosures.
     AIAA Paper 87-2706. In Proceedings of the 11th Aeroacoustics conference. PaloAlto,
     CA,19~21October.
    105 Mollo.C.G, Bernhard.R.J. Numerical evaluation of the performance of active noise control
     systems. Journal of Vibration and Acoustics. 1990(112):230~236.
    106 Pan.J. The forced response of an acoustic-structural coupled system. Journal of the
     Acoustical Society of America. 1992(91):949~956.
    107 Martin.V. Small-scale vibro-acoustic modeling for active noise control in aircraft. In
     Proceedings of Noise-93. St Petersburg, Russia.1993(2):195~200.
    108 Dorling.C.M, Eatwell.G.P, Hutchins.S.M. A demonstration of active noise reduction in an
     aircraft cabin. Journal of Sound and Vibration. 1989(128):358~360.
    109 Banerjee.P.K. Active control of road noise inside automobiles. In Proceeding of
     active95,Institute of Noise Control Engineering, 1995pp:21~32.
    110 Guicking.D, Bronzel.m, Boh.W Active adaptive noise control in cars .In proceedings of
     Recent advances in active Control of Sound and Vibration . Technomic Publishing co.
     1992:657~670.
    111 Patrikin.P.H. Cabin noise characteristics of a small propeller powered aircraft. AIAA
     paper InProceedings of the 10th Aeroacoustics Conference. 1986(9~11):86~1096.
    112 Pope.L.D. On the prediction of propeller one sound levels and pressere guadients in an
     aeroplane cabin . Journal of the Acoustical Society of America. 1990(88):2755~2765.
    113 Hassall R J and Zaveri K. 声噪声测量. 中国计量出版社,1986, 5-10

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