摘要
由经典的统计理论出发,根据形状误差评定的数学模型,将形状误差的测量误差分布归纳为折叠正态分布和瑞利分布两种类型,根据形状误差测量的条件和两种概率分布的性质,推导出直线度、平面度、圆度、圆柱度、空间直线度等形状误差的测量结果近似服从正态分布,并用实验对这一结论进行了验证.
Starting from the traditional statistics theory and according to the mathematical models of form error for evaluation, the distribution of measurement error of form error was summarized into two types as folded normal distribution and Rayleigh distribution. According to measurement conditions of form error and characteristics of these two distribution types, it was deduced that the distribution of measurement error of form error such as the errors of straightness, flatness, roundness, cylindricity, and spatial straightness were approximately obedient to normal distribution. This conclusion was verified by experiments.
出处
《兰州理工大学学报》
CAS
北大核心
2007年第6期36-39,共4页
Journal of Lanzhou University of Technology
关键词
形状误差
测量误差
折叠正态分布
瑞利分布
正态分布
form error
measurement error
folded normal distribution
Rayleigh distribution
normaldistribution
