噪声与振动控制2019，Vol.39Issue(5)：18-22,5.DOI:10.3969/j.issn.1006-1355.2019.05.004
不同高度刚性支承对机床固有频率的影响分析
Analysis of the Influence of Rigid Supports with Different Heights on the Natural Frequencies of Machine Tools
摘要
Abstract
When the excitation frequency of the machine is close to its natural frequency, the machine will produce resonance phenomenon, which will reduce the machining accuracy and the processing quality. This paper proposes a method to avoid the resonance. In this method, the natural frequency of the machine tool can be adjusted by changing the size of the support to avoid the resonance. Firstly, the finite element model of the machine tool is established and analyzed. Then, the quantitative relationship between the support height and the natural frequency of the machine tool is studied. Finally, the feasibility and effectiveness of the method are verified by modal experiments of the machine tool.关键词
振动与波/机床/振动控制/有限元模型/模态分析/模态试验Key words
vibration and wave/machine tool/vibration control/finite element model/modal analysis/modal experiment分类
通用工业技术引用本文复制引用
隋宇恒,贵鹏,唐彬,阳红,吕磊,许斌..不同高度刚性支承对机床固有频率的影响分析[J].噪声与振动控制,2019,39(5):18-22,5.基金项目
国家自然科学基金资助项目(51405314) （51405314）
四川省科技支撑计划资助项目(2016GZ0183、2016GZ0192、2019YFG0355) （2016GZ0183、2016GZ0192、2019YFG0355）
