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细长轴磨削时辅助支撑对自由振动的影响

Xiang-fei LI,De-hua MIAO

Journal of Tianjing University of Technology and Education（2016）

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Abstract
从振动角度分析支撑架刚度对工艺系统的影响,得出细长轴磨削时的受力简化模型.将有支撑架辅助支撑的细长轴简化为中间弹性支撑的超静定梁模型,以支座反力替代弹性支撑的振动系统,根据连续梁的边界条件及弹性支撑处的约束条件,得出频率特征方程和自振频率,将理论推导所得结果与有限元法所得结果进行对比,并分析中间弹性支撑位置变化时,细长轴各阶频率的变化规律.
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