摘要
平面常被作为检测基准,为了高效率、高精度地获得最佳拟合平面,以概率统计为理论基础,采用均匀试验设计方案确定检测点,基于最小二乘法原理建立平面度误差模型,通过SAS软件分析平面度误差的概论统计特征。试验表明,该方式采用较少的测量点拟合较优平面,同时判断平面误差分布呈现正态分布特征,提高拟合最佳平面的效率和精度,具有一定的工程实际意义。
Plane is often used for detection reference plane,in order to obtain the better fitting plane with high accuracy efficiency,probability statistics theory and uniform design are used in data acquisition and flatness error model are established based on least squares,then statistical characteristics of flatness error are analyzed by SAS software. The tests indicate that better plane is fitted by optimizing detection points and flatness error of the plane exhibited the characteristics of a normal distribution,which improve the efficiency and precision to obtain the better plane. The method presented is of certain actual engineering significance.
出处
《工具技术》
北大核心
2016年第1期110-113,共4页
Tool Engineering
基金
2014年度泰州学院重点教育改革研究课题(14JGA007)
2014年江苏省高校自然科学研究项目(14KJB460028)
关键词
平面误差
概率统计
最小二乘法
正态分布
flatness error
probability statistics
least squares
normal distribution
