摘要
为实现计算机对内燃机性能试验数据的处理和特性曲线的绘制,本文采用试验数据的误差分析,最小二乘法多项式函数拟合负荷特性曲线。在绘制封闭曲线时,采用累加联线长作参变量的三次样条周期函数插值。该方法用BASIC语言编程,并在Apple—Ⅱ计算机上(带SPL—400绘图机)经过验证,取得较好的效果。
In order to realize experimental data management and curve plotting for the characteristics of internal combustion engine by computer, the load characteristic has been fitted using error analysis of experimental data and the least equare method polynomial function in this paper. 3-rd spline period function inserting value of the length of link line accumulated as reference variable has been adopted when plotting closed curve. This method is a BASIC program which is checked with Apple-11 computer (with SPL-450 drawing equipment). Cood results are achieved
出处
《南昌大学学报（工科版）》
CAS
1989年第1期8-13,共6页
Journal of Nanchang University(Engineering & Technology)
关键词
特性曲线
三次样条周期函数
Characteristic curve
3-rd spline period function
