基于谱分析与相干分析的液力变速箱噪声源识别研究  

Study on the Noise Source Identification of Hydraulic Gearbox Based on Spectrum Analysis and Coherence Analysis

作　　者：张宸维[1] 李志远[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《汽车零部件》2010年第8期85-87,共3页Automobile Parts

摘　　要：通过噪声、振动自功率谱分析和相干函数分析技术,应用杭州亿恒公司的8通道动态信号测试分析系统,对一台内燃叉车的液力变速箱进行了噪声振动分析,从而得出了该台变速箱产生噪声的主要原因在于Z6-Z7齿轮轴的啮合激励。Through the theo,＇y of self-power spectrum analysis and coherence function analysis of noise and vibration signal, Hangzhou AVANT＇ s 8-channel dynamic signal measurement and analysis system was applied in gearbox noise analysis in the paper. Noise and vibration analysis for a hydraulic gearbox of powered Forklift Truck. So that obtain the conclusion that the main reason of strong noise is the Z6-Z7 gear shaft＇s meshing incentive in the gearbox.

关 键 词：液力变速箱 噪声源 自功率谱 相干 

分 类 号：U467.493[机械工程—车辆工程]