大型焊接筒节切削刀具的振动特性  

Vibration Performance of the Cutter During Cutting Large Welded Cylinder

作　　者：程耀楠[1] 刘利[1] 巩亚楠[1] 吴明阳[1] 钱俊[1] 严复钢[1] 

机构地区：[1]哈尔滨理工大学高效切削及刀具国家地方联合工程重点实验室,哈尔滨150080

出　　处：《振动．测试与诊断》2015年第3期507-512,593,共6页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(51205095);黑龙江省教育厅科学技术重点资助项目(12541z006)

摘　　要：为了研究大型焊接筒节切削过程中刀具的振动特性,首先,对切削振动的产生机理进行分析,建立大型焊接筒节切削过程动力学模型;然后,通过参照实际生产加工条件进行切削振动模拟实验,结合模型变化规律修正法对振动模型进行修正,从而验证模型在实际应用中对切削振动预测的可行性与精度保持性;最后,确定大型焊接筒节切削振动产生的临界条件,为进一步研究大型结构不稳定零件加工过程的振动规律提供理论支撑。The mechanism of cutting vibration is analyzed to research the dynamic characteristics of the cutter for cutting a large welded cylinder.The dynamic model of the cutting process of a large welded cylinder is established and solved.The cutting experiment is carried out under the real condition,and the vibration model is amended according to the changing of models.Thus,the feasibility and stability of the model in practical applications are verified.Finally,the critical condition of dynamically cutting a large welded cylinder is determined,which provides theoretical support to the further study of unstable vibration laws of large structure processing.

关 键 词：大型焊接筒节 刀具振动 动力学模型 数值分析 

分 类 号：TH113[机械工程—机械设计及理论]