航空齿轮附加阻尼碗减振性能分析

Effect Analysis of Vibration Alleviation on Aero-gear by Adding Damping Bowl

航空齿轮轮体振动是航空齿轮结构失效的一个重要原因,利用附加阻尼碗提供外摩擦抑制轮体振动是一项有意义的尝试。利用等效线性化方法,将干摩擦作用转化为对系统特性参数的修正,通过在接触面间添加等效弹簧单元和等效阻尼单元建立附加阻尼碗组合结构等效分析模型;利用APDL编程实现动载荷在弧齿锥齿轮节锥上循环加载,应用ANSYS软件求解了组合结构等效模型的动态响应,得到了阻尼碗对结构动态响应的影响。

Vibration of the spoke is an important reason for the invalidation of aero-gear, and it is significant to al- leviate the vibration of the spoke by adding the additional damping bowl. By using the equivalent linearization meth- od, transforming dry friction into the correction of system characteristic parameters, and adding the equivalent spring unit and the equivalent damping unit between the contact surfaces, an equivalent model of composite struc- ture is established in this paper. By determining the dynamic loads of the size and loading position of the different moments, and using APDL （Ansys Programming Design Language ） programming loading dynamic load into sections of spiral bevel gear, finally, the dynamic responses of equivalent model of the composite structure are solved by ANSYS, and this method provides a reference for structural design of vibration reduction.