ACTIVE NOISE REDUCTION METHOD FOR RAIL TRANSIT VEHICLE AND CAB

An active noise reduction method for a rail transit vehicle and a cab. Structure noise transmission channels of the cab are installed with accelerometers, and air noise transmission channels are installed with microphones; the cab is internally installed with a plurality of secondary sound sources;...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG, Jun, LI, Wang, WANG, Xianfeng, LI, Dengke, HE, Huiyong, JIANG, Zhongcheng, LIU, Xiaobo, GUO, Bingbin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR LOCOMOTIVES METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MOTOR RAILCARS MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS RAILWAYS SOUND-PRODUCING DEVICES TRANSPORTING
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Beschreibung
Zusammenfassung:	An active noise reduction method for a rail transit vehicle and a cab. Structure noise transmission channels of the cab are installed with accelerometers, and air noise transmission channels are installed with microphones; the cab is internally installed with a plurality of secondary sound sources; and the accelerometers, microphones, and secondary sound sources are all electrically connected to an active noise adaptive controller. The method is fused with multi-reference sensor information of the cab, and is able to improve the comprehensiveness and accuracy of reference signal sources, effectively increase the amount of noise reduction in a target noise reduction region, and has a better noise reduction experience and engineering practicability.