齿轮传动系统建模与典型界面传递特性研究

doi:10.19562/j.chinasae.qcgc.2023.09.023

Abstract

Abstract:

With the development of vehicle gear transmission system towards high speed， heavy load and high power， the structure is becoming more and more complex， and the operating conditions are variable， easy to cause damage and failure of parts and components， which affects the reliability of the system. Establishing an accurate gear transmission system model and studying the change law of the transfer characteristics of typical interface are the key technical basis for system fault detection and location. This paper comprehensively considers the key influencing factors such as the gear time-varying meshing stiffness， meshing damping， tooth clearance and bearing support stiffness， establishes a nonlinear dynamic model of the fixed shaft gear transmission system， and conducts vibration characteristics tests， effectively verifying the accuracy of gear transmission dynamics model. For the gear-meshing interface and bearing interface， a typical interface force model is constructed， and the transfer characteristics are quantitatively characterized by the attenuation coefficient of vibration signal transfer. The simulation and experimental research on typical interface vibration transfer are carried out to reveal the essential law of vibration signal transfer in the gear transmission system， which provides a powerful theoretical and technical support for the layout of sensor measuring points in the fault detection of vehicle gear transmission system.

Key words: gear transmission, gear meshing interface, bearing interface, transfer characteristics, attenuation coefficient

Pu Gao,Hui Liu,Wenjin Bei,Changle Xiang. Research on Modeling of Gear Transmission System and Transfer Characteristics of Typical Interface[J].Automotive Engineering, 2023, 45(9): 1753-1764.

Figures/Tables 23

References 25

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设备名称	主要功能	技术状态	数量
转速转矩传感器 JN338-3000AG	测量输入输出轴转速和转矩	转矩范围0-3 000 N·m，标准转速2 500 r/min	2套
三向加速度传感器356a16	测量输入输出端轴承座振动加速度	灵敏度100 mV/g，频率范围：X向≤9 kHz，Y向≤8 kHz，Z向≤16 kHz	2个
LMS数据采集系统	连接传感器，采集振动信号	32通道，最大分析带宽：92 kHz@-3 dB	1套
数据处理软件	处理试验数据	LMS Test.Lab 2018	1套

负载	空载			50%负载			80%负载
负载	仿真	试验	精度	仿真	试验	精度	仿真	试验	精度
输入振动加速度/g	0.26	0.24	89.54%	1.83	1.59	84.67%	2.67	2.28	85.39%
输入振动速度/（mm·s^-1）	0.39	0.38	97.37%	1.07	0.99	91.92%	1.55	1.42	91.61%
输出振动加速度/g	0.25	0.23	91.74%	1.48	1.29	84.82%	2.03	1.72	84.72%
输出振动速度/（mm·s^-1）	0.46	0.45	97.78%	1.06	0.94	87.23%	1.52	1.31	86.18%

负载	空载			50%负载			80%负载
负载	仿真	试验	精度	仿真	试验	精度	仿真	试验	精度
输入振动加速度/g	0.40	0.37	91.53%	2.57	2.36	91.23%	3.41	3.07	90.02%
输入振动速度/（mm·s^-1）	0.48	0.46	95.65%	1.41	1.32	93.18%	1.81	1.67	92.26%
输出振动加速度/g	0.32	0.30	90.00%	1.90	1.70	88.41%	2.44	2.13	87.29%
输出振动速度/（mm·s^-1）	0.55	0.53	96.23%	1.31	1.18	88.98%	1.62	1.43	88.27%

负载	空载			50%负载			80%负载
负载	仿真	试验	精度	仿真	试验	精度	仿真	试验	精度
输入振动加速度/g	0.52	0.48	92.34%	6.34	6.10	95.95%	10.11	9.72	95.94%
输入振动速度/（mm·s^-1）	0.62	0.57	91.23%	2.72	2.36	84.75%	4.32	3.76	85.11%
输出振动加速度/g	0.40	0.36	90.03%	5.00	4.76	94.94%	8.18	7.80	95.05%
输出振动速度/（mm·s^-1）	0.41	0.37	89.19%	2.37	2.09	86.60%	3.86	3.41	86.80%

Research on Modeling of Gear Transmission System and Transfer Characteristics of Typical Interface

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Figures/Tables 23

References 25

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参数	齿轮1	齿轮2	齿轮3	齿轮4
齿数	27	31	35	47
模数/mm	5	5	5	5
齿宽/mm	30	30	40	40
压力角/（°）	20	20	20	20

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