1.河南科技大学 机电工程学院,河南 洛阳 471003
2.机械装备先进制造 河南省协同创新中心, 河南 洛阳 471003
孙维浩(1996— ),男,河南鹿邑人,硕士研究生;研究方向为弧齿锥齿轮先进制造技术。
李聚波(1979— ),男,河南南阳人,副教授;研究方向为弧齿锥齿轮先进制造技术。
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孙维浩,李聚波,李天兴等.批量弧齿锥齿轮热处理变形齿面偏差的自助法统计模型[J].机械传动,2022,46(08):156-161.
Sun Weihao,Li Jubo,Li Tianxing,et al.Bootstrap Statistical Model of Tooth Surface Deviation of Heat Treatment Deformation of Batch Spiral Bevel Gears[J].Journal of Mechanical Transmission,2022,46(08):156-161.
孙维浩,李聚波,李天兴等.批量弧齿锥齿轮热处理变形齿面偏差的自助法统计模型[J].机械传动,2022,46(08):156-161. DOI: 10.16578/j.issn.1004.2539.2022.08.024.
Sun Weihao,Li Jubo,Li Tianxing,et al.Bootstrap Statistical Model of Tooth Surface Deviation of Heat Treatment Deformation of Batch Spiral Bevel Gears[J].Journal of Mechanical Transmission,2022,46(08):156-161. DOI: 10.16578/j.issn.1004.2539.2022.08.024.
针对齿轮材料、数控铣齿方法和热处理规范均相同的同一批次的弧齿锥齿轮,基于自助法对少量齿面偏差样本数据进行自助再抽样,得到大量的样本数据,建立了批量弧齿锥齿轮齿面偏差的自助法统计模型;计算了齿面测量顺序点的概率特征值,利用,k-s,检验了其是否符合正态分布,并选取估计真值、估计区间等参数,描述了其统计规律和结果;通过三次NURBS曲面拟合方法,得到了整批次齿面偏差变化规律,实现了整批次齿面精度的有效评价。该自助法统计模型为指导齿面加工参数修正和高效稳定生产提供了理论依据。
Aiming at the same batch of spiral bevel gears with the same gear material, NC milling method and heat treatment specification, a bootstrap resampling is carried out on a small number of tooth surface deviation sample data based on the bootstrap method, a large number of sample data are obtained and a bootstrap statistical model of batch spiral bevel gear tooth surface deviation is established; the probability characteristic value of the sequential points of tooth surface measurement is calculated, and whether they conform to the normal distribution is tested by ,k,-,s,; the estimated true value, estimated interval and other parameters are selected to describe their statistical laws and results; through the cubic NURBS surface fitting method, the variation law of the tooth surface deviation of the whole batch is obtained, and the effective evaluation of the tooth surface accuracy of the whole batch is realized. The bootstrap statistical model provides a theoretical basis for guiding the modification of tooth surface processing parameters and efficient and stable production.
弧齿锥齿轮热处理变形齿面偏差自助法统计模型
Spiral bevel gearsHeat treatment distortionTooth surface deviationBootstrap statistical model
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