摘要
为得到床鞍结构参数对其动态特性的影响规律,以高速精密数控车床ADGM35的床鞍为研究对象,建立并验证了有限元分析模型。结合正交试验设计的方法,以床鞍关键结构参数为因素,以床鞍前两阶固有频率和质量为试验指标,进行三因素五水平正交试验设计。通过极差与方差法确定床鞍结构参数对试验指标影响的灵敏度,最后建立床鞍结构参数与固有频率和质量之间的响应面模型,可为床鞍结构优化设计提供参考。
To obtain the law of effects of structural parameters of a lathe saddle on its dynamic characteristics,we study the lathe saddle of the high-speed precision CNC ADGM35 and establish its finite element model. Combined with the orthogonal experimental design method,key structural parameters were taken as factors,and the first twoorder natural frequency and the mass of saddle as experimental indices,the three-factors and five-level orthogonal experiment is carried out. With the range method and the variance method,the law of effect of the structural parameters on the experimental indices is determined. Finally the response surface model of structure parameters and natural frequency and mass is established. The study can provide reference for the optimal design of lathe saddle structure.
出处
《机械科学与技术》
CSCD
北大核心
2016年第10期1538-1543,共6页
Mechanical Science and Technology for Aerospace Engineering
基金
国家重大专项项目(2012ZX04005-021
2011ZX04002-132)资助
关键词
机床床鞍
有限元
正交试验
响应面模型
lathe saddle
finite element method
orthogonal experiment
response surface model
