【摘要】 从理论上分析了工作状态下 ,轴向切削力和扭矩对钻头类构件动态特性的影响 ,利用三维四面单元推导出适合任意复杂截面特性结构的有限元方程 ,给出了工作载荷对钻头动态特性影响的结果。更多还原

【Abstract】 In this paper,the influence of axle cutting force and torque on dynamic behaviour is researched in the process of drilling.The 3-D tetrahedron finite element equations for drill bit with complex section are derived.Finally,the influences of cutting load on dynamic behaviour of drill bit are given.更多还原