摘要
在实际工程科学实验中,曲线拟合法扮演着重要角色。通过最小二乘法曲线拟合对国产某品牌农业拖拉机振动实验中测量的数据和误差进行分析,利用Matlab实验实现曲线拟合得到几种函数关系,结合实际车辆振动的特性,从中得出复合函数的拟合误差平方和非常小,曲线拟合效果更佳。
Curve fitting plays an important role in practical engineering experiments.In this paper,the least square curve fitting method is used to analyze the measurement data and errors in the vibration experiment of a domestic agricultural tractor.Using MATLAB experiment to achieve curve fitting and get several functional relationships,combined with the characteristics of the actual vehicle vibration,the fitting error sum of the composite function is minorl,and the curve fitting effect is better.
作者
吴年祥
严正红
吴立冬
王晓栋
Wu Nianxiang;Yan Zhenghong;Wu Lidong;Wang Xiaodong(Anhui Vocational College of Defense Techonology,Lu’an City,Anhui Province 237001;Anhui Yongcheng Electronic and Mechanial Technology Co.,Ltd,Lu’an City,Anhui Province 237161;Lu’an Technical School,Lu’an city,Anhui Province 237141)
出处
《黄河科技学院学报》
2021年第2期10-15,共6页
Journal of Huanghe S&T College
基金
安徽省高校学科(专业)优秀拔尖人才培育项目(2019gxbjZD94)
安徽省教育厅自然科学重点研究项目(KJ20119A1187,KJ2019A1191)
安徽省教育厅教学研究重点项目(2018jyxm0344,2019zyk33)
六安市机器人技能大师工作室资助项目(lads201903)。
关键词
最小二乘法
曲线拟合
误差平方和
least square method
curve fitting
error sum of squares
matlab
