Effects of Structural Parameters on Dynamic Characteristics of Lathe Saddle
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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。Abstract: 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 two-order 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.
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Key words:
- lathe saddle /
- finite element method /
- orthogonal experiment /
- response surface model
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