基于细节比的汽车曲线品质评定方法研究  

Research on Quality Evaluation Method of Automobile Curves Based on Detail Ratio

作　　者：闫晨 纪小刚 于益超 胡海涛 张溪溪 Yan Chen;Ji Xiaogang;Yu Yichao;Hu Haitao;Zhang Xixi(Jiangnan University,Wuxi 214122;Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology,Wuxi 214122)

机构地区：[1]江南大学,无锡214122 [2]江苏省食品先进制造装备技术重点实验室,无锡214122

出　　处：《汽车技术》2020年第1期48-53,共6页Automobile Technology

基　　金：国家自然科学基金项目（51105175）;江苏省“六大人才高峰”项目（JXQC-006）

摘　　要：针对当前车身曲线曲面的品质主要由人工评定,难以定量化,导致评定结果主观性强、准确性差的问题,根据曲线小波分解后的光顺信息和细节信息定义曲线的细节比,由细节比的性质对曲线品质进行标定,根据细节比的数值划分曲线品质等级,由此提出一种定量评定车身曲线品质的方法,工程实例表明,所提出的方法可实现车身曲线品质的定量、准确、高效评定。The quality of automobile body curves and surfaces is mainly assessed by manual labor,which is difficult to quantify and has strong subjectivity and inaccuracy,the curve quality is calibrated by the nature of the detail ratio according to the fairness information and detail ratio defined by detail information of the curve after wavelet decomposition,and the curve quality grade is divided according to the values of detail ratio.A quantitative evaluation method of body curves quality is proposed.An engineering case shows that the proposed method can achieve an accurate and efficient quantitative evaluation.

关 键 词：车身曲线品质 定量评定 细节比 标定 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]