The invention discloses an outboard noise reproduction system, which can create a vivid outboard sound field environment in a ground laboratory, simulate external noise in a high-speed operation process of airplanes, high-speed rails, buses and the like, is used for design and research personnel to carry out a wallboard sound insulation performance test, and can be additionally convenient for maintenance personnel to position a fault of a wallboard structure. The system comprises an equal-interval measurement and control surface construction system which can perform three-dimensional space scanning on a measured object, identify the surface morphology of the measured object and establish an equal-interval curved surface model close to the surface morphology of the measured object; the array type sound source system emits white noise excitation; the curved surface type microphone array can surround the periphery of the measured object so as to collect and monitor noise signals; and the control system is respectively in communication connection with the array type sound source system and the curved surface type microphone array so as to obtain excitation response and control the array type sound source system and the curved surface type microphone array.

    一种舱外噪声复现系统,能在地面试验室创造逼真的舱外声场环境,模拟出飞机、高铁、巴士等高速运行过程中的外部噪声,用以供设计研发人员开展壁板隔声性能试验用,并且可附带地能便于维修人员对壁板结构的故障进行定位。该系统包括:等间距测控面构建系统,其能对被测对象进行三维空间扫描,识别其表面形态,建立与所述被测对象的表面形态接近的等间距曲面模型;阵列式声源系统,其发出白噪声激励;曲面式传声器阵列,其能围绕所述被测对象周围,以采集和监测噪声信号;以及控制系统,其与所述阵列式声源系统和所述曲面式传声器阵列分别通信连接,以获得激励响应,并对所述阵列式声源系统和所述曲面式传声器阵列进行控制。


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    Titel :

    Outboard noise reproduction system


    Weitere Titelangaben:

    舱外噪声复现系统


    Beteiligte:
    HU HAIFENG (Autor:in) / DAI ZHENG (Autor:in) / WANG YUDI (Autor:in) / ZHAO YI (Autor:in) / MENG LINGDA (Autor:in) / CUI YI (Autor:in)

    Erscheinungsdatum :

    01.10.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H04S Stereophone Systeme , STEREOPHONIC SYSTEMS / G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / B64C AEROPLANES , Flugzeuge / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



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