Vibro-Impact Energy Analysis of a Geared System with Piecewise-Type Nonlinearities Using Various Parameter Values
Vibro-Impact Energy Analysis of a Geared System with Piecewise-Type Nonlinearities Using Various Parameter Values
复制标题
DOI：
10.3390/en8088924
复制
发表时间：
2015-08
期刊：
影响因子：
3.2
通讯作者：
Jong-yun Yoon;Byeongil Kim
中科院分区：
文献类型：
--
作者：
Jong-yun Yoon;Byeongil Kim
具有齿轮副的扭转系统（例如风力涡轮机的齿轮箱或车辆传动系统）在系统经历正弦激励时固有地显示出由于间隙型非线性而引起的冲击现象。本研究以谐波平衡法在时域与频域中探讨齿轮传动系统中空载齿轮的冲击振动能量。为了实现精确的仿真，在HBM中定义并实现了具有分段和间隙型非线性和阻力矩的非线性模型。接下来，非线性频率响应进行了检查，重点是共振区域的影响现象发生，沿着的变化，如离合器的刚度，阻力矩，惯性的飞轮和空载齿轮。最后，在特定的激励频率下的振动碰撞的参数的影响解释了使用分叉图。通过定义具有关键参数的齿轮敲击标准，将结果与先前的研究相关联。本文提出了一种使用HBM模拟扭转系统中的冲击现象的方法，并成功地使用分叉图评估了振动冲击能量。
Torsional systems with gear pairs such as the gearbox of wind turbines or vehicle driveline systems inherently show impact phenomena due to clearance-type nonlinearities when the system experiences sinusoidal excitation. This research investigates the vibro-impact energy of unloaded gears in geared systems using the harmonic balance method (HBM) in both the frequency and time domains. To achieve accurate simulations, nonlinear models with piecewise and clearance-type nonlinearities and drag torques are defined and implemented in the HBM. Next, the nonlinear frequency responses are examined by focusing on the resonance areas where the impact phenomena occur, along with variations in key parameters such as clutch stiffness, drag torque, and inertias of the flywheel and the unloaded gear. Finally, the effects of the parameters on the vibro-impacts at a specific excitation frequency are explained using bifurcation diagrams. The results are correlated with prior research by defining the gear rattle criteria with key parameters. This article suggests a method to simulate the impact phenomena in torsional systems using the HBM and successfully assesses vibro-impact energy using bifurcation diagrams.