摘要
由轮齿接触分析以及轮齿承载接触分析计算出考虑安装误差的轮齿啮合刚度,建立了考虑时变啮合刚度激励、啮合冲击激励和齿侧间隙激励的人字齿轮系统十二自由度啮合型弯-扭-轴耦合非线性振动模型。以某船用单级人字齿轮副为实例,研究了多载荷下人字齿轮左端啮合副周向的振动特性,结果表明,外载荷的增大使得啮合刚度激励和啮合冲击激励下系统的振动均增大,且啮合冲击激励对外载荷的敏感性高于啮合刚度激励,而齿侧间隙激励下系统的振动则随着外载荷增大而减小。同时,啮合冲击激励对系统振动的影响随着载荷增大而增大,而啮合刚度激励和齿侧间隙激励则随着载荷增大而减小。
Teeth meshing stiffness was calculated using tooth contact analysis and load tooth contact analysis. A 12- DOF nonlinear double helical gear vibration model was established considering excitations of time-varying meshing stiffness, corner mesh impact, and backlash. With a ship transmission system as an example, the vibration characteristics of the left end meshing gear pair under multi-load were studied. The results showed that the system vibrations under excitations of meshing stiffness and corner mesh impact increase with increase in load torque; a corner mesh impact excitation is more sensitive to changes of load than a meshing stiffness excitation; however, the vibrations of the system decrease with increase in external load under backlash excitation; meanwhile, a corner mesh impact has a growing effect on the system vibrations with increase in the load while a meshing stiffness and a backlash excitation have diminishing effects.
出处
《振动与冲击》
EI
CSCD
北大核心
2013年第1期49-52,77,共5页
Journal of Vibration and Shock
基金
国家自然科学基金(51175423)
关键词
啮合刚度
线外啮合冲击
齿侧间隙
多载荷
人字齿轮动力学模型
振动特性
mesh stiffness
corner meshing impact
backlash
multi-load
double helical gear dynamic model
vibration characteristics
