锯切力作用下电镀金刚石线锯随机振动研究  

Study on Random Vibration of Electroplate Diamond Wire Saw Subjected to Sawing Force

作　　者：孟剑峰[1] 李剑峰[1] 葛培琪[1] 韩云鹏[1] 

机构地区：[1]山东大学,济南250061

出　　处：《中国机械工程》2005年第24期2231-2234,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50475132);山东省优秀中青年基金资助项目(02BS066)

摘　　要：考虑锯切力的随机性,由模态分析法导出了线锯切割运动方程的传递函数。由于电镀金刚石线锯单位长度质量很小而张紧力较大,临界速度大大高于线锯速度,所以线锯加工一般不会发生失稳现象。在传递函数的基础上,分析了线锯速度和张紧力对振动的影响,由此得出,在一定范围内,可通过增加线锯张紧力来减小振动,当线锯速度小于一定值时,振动基本不随速度的增加而增大。The transmit function of wire sawing system was presented. For electroplate diamond wire saw, because of low mass per unit length and high tension, the critical speed was much higher than wire saw speed, so the divergence instability is generally not a concern. The influences of wire saw speed and tension on vibration was investigated. It shows that a more effective way to reduce vibration of wire sawing process is to increase the tension, instead of decreasing the wire saw speed.

关 键 词：锯切力 电镀金刚石线锯 随机振动 传递函数 

分 类 号：TH113.1[机械工程—机械设计及理论]