重卡传动系统扭转共振计算模拟与两段式减振阻尼器的设计  

The Drivetrain Torsional Vibration Analysis Program and Two-stage Clutch Damper Design

作　　者：展新 许恩永 施善 娄玉印 

机构地区：[1]东风柳州汽车有限公司,广西柳州545005

出　　处：《装备制造技术》2014年第8期32-35,共4页Equipment Manufacturing Technology

基　　金：国家自然科学基金(No.51305115)

摘　　要：基于重型汽车降低振动、减少噪声的要求,研发了一种两段式减振阻尼器的设计方法,采用扭转振动理论建立了重型汽车传动系统的振动方程,运用matlab软件建立16自由度的重卡传动系的振动数模,得出发生扭转共振的的自然频率,模态及频域分析。模拟示笵得到6汽缸发动机3阶激励产生在飞轮,变速箱及车桥的扭转角或扭转力矩与发动机转速的函数关系、分析也提供传动系自然频率和减振器弹簧刚度或变速箱速比间的函数关系以及振动性能与减振器的阻尼力矩的函数关系。结果表明:有效的两段式阻尼器设计能起到降振减噪的作用。Based on the requirements of reducing vibration and reducing noise, research a design method ot two section type vibration damper. This paper establishe the vibration equation of heavy-duty car transmission system by the torsional vibration theory. The paper draws that twist resonance of the 16 degree of freedom model,3 order incentive of the engine produces,relationship between the gearbox and axle torsion angle and the speed of the engine,relationship of transmission system natural frequency and shock absorber spring stiffness,the relationship between the natural frequency and the relationship of transmission gearbox ratio, relationship between the performance of vibration and shock absorber damping torque, idle noise equivalent model of 2 degree of freedom,noise prediction curve of 2 degrees of freedom model by madab. The results show that the two section type damper design method can play the role of reducing vibration and noise.

关 键 词：传动系振动 噪音 两段式阻尼 MATLAB 

分 类 号：U463.2[机械工程—车辆工程]