基于声强技术的叉车变速器噪声源识别研究  

Research on Noise Source Identification of Forklift Transmission Based on Sound Intensity Technology

作　　者：张宸维[1] 李志远[1] 陆益民[1] 陈品[1] 马庆丰[2] 

机构地区：[1]合肥工业大学机械与汽车工程学院 [2]安徽合力股份有限公司

出　　处：《工程机械》2011年第5期25-28,6,共4页Construction Machinery and Equipment

摘　　要：液力变速器作为内燃叉车的重要传动机构,其噪声水平是衡量内燃叉车质量的重要指标之一。要降低液力变速器的噪声,首先必须对其主要噪声源进行识别。采用声强测量法对一台内燃叉车液力变速器的噪声源进行表面辐射噪声测量,通过分析等声强线图和三维声强图,对影响液力变速器的主要噪声源进行排序,找出了液力变速器的主要噪声源,为降低该系列内燃叉车变速器的表面辐射噪声提供了有效依据,对提升叉车整车品质具有重要的意义。Hydraulic transmission used as an important drive mechanism in engine type forklift trucks plays a key role in evaluating the noise level as one factor of quality indicator.For lower noise level of the hydraulic transmission the first task is a must to identify where is the noise source,before measuring surface radiation of the noise from the hydraulic transmission used in an engine type forklift truck through a sound source strength test.And then through analysis of equivalent sound source curves and 3-D sound source diagrams,arrangement is made in order effects of the primary noise sources that affect the hydraulic transmission so as to find out the main noise sources in the hydraulic transmission and to provide effective bases to lower surface radiated noise level of the transmission in combustion engine type forklift trucks.This has important meaning to improve quality of the forklift truck.

关 键 词：液力变速器 噪声源识别 声强测量 内燃叉车 

分 类 号：TB533.1[理学—物理]