摘要
逆向工程中存在数学建模精度和效率低的问题。为获得构建更为精准数学模型的解决方法,现以某涡轮叶片为研究对象,基于MATLAB对其轮廓方程采集不同精度和数量的数据点,并用三种不同软件(MATLAB、Origin、1stOpt)分别对采集到的数据点进行线性拟合。结果表明,对不同精度和数量的数据点,三种软件的拟合精度和效率各不相同。在逆向工程建模中,根据采集数据点选择适当软件能够提高建模精度和效率。
There are problems with mathematical modeling accuracy and low efficiency in reverse engineering.In order to obtain a solution for constructing a more accurate mathematical model,a turbine blade is used as the research object,and MATLAB collects data points of different accuracy and number based on its contour equation,and uses three different software (MATLAB,Origin,1stOpt) to collect the data respectively.The data points are linearly fitted.The results show that the fitting accuracy and efficiency of the three software are different for different precision and number of data points.In reverse engineering modeling,selecting the appropriate software based on collected data points can improve modeling accuracy and efficiency.
作者
李忠远
苟向锋
朱凌云
LI Zhongyuan;GOU Xiangfeng;ZHU Lingyun(School of Mechanical Engineering,Tianjin University of Technology,Tianjin 300387,CHN;Tianjin Key Laboratory of Modern Electromechanical Equipment Technology,Tianjin 300387,CHN)
出处
《制造技术与机床》
北大核心
2019年第6期41-45,共5页
Manufacturing Technology & Machine Tool
基金
国家自然科学基金资助项目(51365025)
天津市自然科学基金重点资助项目(16JCZDJC38500)
关键词
逆向工程
数学建模
涡轮叶片
线性拟合
reverse engineering
mathematical modeling
turbine blade
linear fitting
