滚齿机振动特性和颤振稳定性分析  

Research on Vibration Behaviors and Chatter Stability of Gear Hobbing Machine

作　　者：赵江坤 孙玲[1] 张侨禹 董冠华 汪进文 ZHAO Jiang-kun;SUN Ling;ZHANG Qiao-yu;DONG Guan-hua;WANG Jin-wen(China Ship Development and Design Center,Wuhan 430064,China)

机构地区：[1]中国舰船研究设计中心,武汉430064

出　　处：《船海工程》2022年第S02期86-91,共6页Ship & Ocean Engineering

摘　　要：为减小不必要的振动,开展数控滚齿机系统动态特性和滚齿加工过程中自激颤振的稳定性模型及试验研究,设计并搭建数控滚齿机试验台;并基于铣加工颤振稳定性的研究思想,结合滚齿加工的运动学和动力学特点,推导出滚齿加工的加工稳定性模型;使用一种较为新颖的工作模态分析的方法进行加工过程中的动态模态参数识别。结果表明,滚齿加工稳定性的表达式能反映临界颤振稳定时的主轴转速与径向进给速度的关系;在较低转速范围内,主轴转速变化和过载对机床主轴模态频率影响较小;对模态阻尼影响较大,且对不同方向的模态阻尼影响方式不同。To reduce the undesired vibrations,the dynamic characteristics of the computer numerical control(CNC)gear hobbing machine system and the chatter stability models were analyzed.The CNC gear hobbing machine test bench was designed and built.Based on the chatter stability theory in relation to milling,analytical model of chatter stability in gear hobbing process was derived.A new approach was proposed to identify dynamic modal parameters using operational modal analysis(OMA).The results showed that the expression can describe the critical conditions of hobbing operation using the variables of axial feed rate and spindle revolution speed,the spindle revolution speed has very small influence upon the natural frequencies in low revolution speed range,while column overload has complex influence upon dynamic modal parameters.

关 键 词：滚齿 振动 稳定域图 大型船舶齿轮传动装置 

分 类 号：U661.44[交通运输工程—船舶及航道工程]