摘要
利用基于线性规划法计算啮合刚度和载荷分布的改进方法,分别计算了一对内、外啮合斜齿轮在不同螺旋角时的啮合刚度,总结了啮合刚度在一个啮合周期内的变化规律.计算结果表明,所有参与啮合轮齿形成的啮合线总长度是决定啮合刚度大小的主要因素,在进入啮合和退出啮合的瞬时位置,啮合刚度会减小.通过与航空工业部标准(HB/Z 84.1-1984)算法的计算结果比较,浅析了轮缘厚度对啮合刚度的影响.
The time-varying meshing stiffness is one of inherent characteristics of gear system vibration.The meshing stiffness of an external and inner helical gear pair with different helical angles was solved respectively using a modified method,which could determine the meshing stiffness and actual load distribution based on linear programming.The variation rules of meshing stiffness during one whole meshing period were summarized.The following findings were obtained in this paper： the key factor that influences the meshing stiffness most significantly is the whole length of contact-line of all the teeth in the engagement.The meshing stiffness decreases at the instantaneous position where the teeth enter contact or exit contact.The results were compared with those obtained by aerospace industry ministry standard（HB/Z 84.1-1984） and the influence of rim thickness on the meshing stiffness was analyzed.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2010年第4期957-962,共6页
Journal of Aerospace Power
关键词
内、外啮合斜齿轮
啮合刚度
真实变化规律
轮缘厚度
线性规划
external and internal helical gear
meshing stiffness
actual variation rules
rim thickness
linear programming
