摘要
双质量飞轮减振器能有效降低汽车传动系统扭转振动,难点在于对于匹配的不同传动系统,需研究双质量飞轮在汽车传动系统中的扭转减振特性并调整双质量飞轮结构参数。通过建立搭载周向短弹簧双质量飞轮的汽车传动系统扭转自由振动分析模型,分析了双质量飞轮刚度对系统固有频率特性的影响,考虑双质量飞轮中轴向摩擦力矩作用和减振弹簧含间隙变化刚度特性非线性因素,在MATLAB软件中对系统强迫振动响应进行数值计算和分析。结果表明双质量飞轮隔离了传动系统的一阶和二阶共振,系统响应存在明显非线性特征和多种周期性的运动状态。上述方法为双质量飞轮参数匹配和结构性能优化提供了依据。
Dual mass flywheel （DMF） can effectively reduce the torsional vibration of vehicle transmission system. The difficulties are investigating the damping characteristics of DMF and adjusting DMF structure parameters to match different transmission systems. In the paper, we established a torsional free vibration model of vehicle transmission system equipped with circumferential short spring DMF, and analyzed the influence of the DMF stiffness on natural frequency characteristics of system. Considering the nonlinear factors including axial friction torque and stiffness containing clearance of the damping spring in the DMF, the forced vibration response numerical calculation and analysis of the system were conducted using MATLAB software. The results show that the first and second order resonance vibrations of transmission system are isolated by DMF, and the responses have obvious nonlinear characteristics and multiple periodic motion states. The above methods can be applied to parameters matching and structure performance optimization of DMF.
作者
曾礼平
周生通
ZENG Li - ping;ZHOU Sheng - tong(School of Mechatronics ＆ Vehicle Engineering, East China Jiaotong University, Nanchang Jiangxi 330013, China)
出处
《计算机仿真》
北大核心
2018年第6期127-130,150,共5页
Computer Simulation
基金
国家自然科学基金(51505146)
关键词
双质量飞轮
汽车传动系统
固有频率
强迫振动
Dual mass flywheel
Vehicle transmission system
Natural frequency
Forced vibration
