基于Matlab的发动机试验数据处理  

Data Processing of Engine Test Based on Matlab

作　　者：赵洁[1] 张璐[2] 郭一平[1] 

机构地区：[1]中北大学机电工程学院,山西太原030051 [2]中北大学信息与通信工程学院,山西太原030051

出　　处：《现代车用动力》2011年第3期22-24,共3页Modern Vehicle Power

摘　　要：运用Matlab语言对4125A柴油机调速特性试验数据进行处理,通过建立数学模型,编制程序描点法绘出数据图,得出最初的描点图,采用最小二乘分段多项式拟合法进行曲线拟合,得出较为完善的曲线图,对拟合前后的曲线进行了对比,证明Matlab的数据处理功能和绘图功能以及分段多项式拟合法的精确可靠。Test data of governor control characteristics for 4125A diesel engine was processed through Matlab. Initial tracing spot dia- gram was obtained through tracing method based on mathematical model, and integrity graph was drawn by least square polynomial fit- ting. Graphs were contrasted before and after curve fitting, therefore precision and reliability of data processing and polynomial fitting with Matlab proposed this paper was feasible.

关 键 词：MATLAB语言 发动机试验 数据处理 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]