新型混联机床的振动特性仿真研究  

VIBRATION-CHARACTERISTIC SIMULATION OF A NOVEL HYBRID MACHINE TOOL

作　　者：解顺强[1] 余跃庆[1] 张兰霞[2] 王立平[3] 汪劲松[3] 龙运佳[4] 

机构地区：[1]北京工业大学机电学院,北京100022 [2]河北科技师范学院数理系,河北秦皇岛066004 [3]清华大学精密仪器与机械学系,北京100084 [4]中国农业大学,北京100083

出　　处：《工程力学》2007年第11期186-192,共7页Engineering Mechanics

基　　金：清华大学机械工程学院基金项目(091202003);国家自然科学基金(50275084);河北科技师范学院博士基金课题资助(20040010A)

摘　　要：混联机床是并联机床领域的一个重要课题。该文对一种新型混联机床进行了研究。该混联机床是由两自由度并联机构和两自由度的摆头构成。在做了若干假设的前提下,计算了该机床的弹性恢复力,进而建立了该机床的弹性振动模型。以端铣刀铣削平面为例,进行了振动仿真,研究了铣削参数对振动特性的影响。仿真实验表明:切深对振动的混沌性态影响不大,转速对振动的混沌性态有影响。The hybrid machine tool is a challenging topic in the field of parallel mechanisms. A novel hybrid machine tool with a 2-DOF parallel mechanism and a serial orientation is investigated. Based on some assumptions, the elastic restoring force and elastic vibration model of the mechanism are studied. A numerical simulation is taken for the example of an end-milling cutter in the procedure of milling a plane. The influence of milling parameters on the vibration characteristics is presented. The numerical results show that the rotating speed has an important effect on the chaos vibration property of the machine. However, the depth of cutting has very little influence on the chaos characteristics of the machine.

关 键 词：混联机床 振动 端铣刀 仿真 混沌性态 

分 类 号：TH113[机械工程—机械设计及理论] TH113.1