活塞裙部型面的样条插值系统  

System for Interpolating the Surface of Piston Skirt Using Cubic Curve

作　　者：秦月霞[1] 宋刚[1] 胡德金[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《上海交通大学学报》2003年第1期47-49,共3页Journal of Shanghai Jiaotong University

基　　金：十五国家技术创新资助项目 (0 1-10 1-19-13 )

摘　　要：为获得中凸变椭圆活塞的复杂型面 ,给出了求解样条曲线的一种简便算法 .采用该算法拟合得到活塞的纵向型线 ,然后对活塞的纵向型线按轴向等距离插值 ,对活塞的横向截面型线按周向等角度插值 ,最后通过 Microsoft Jet数据库引擎对生成的数据进行存储和维护 .实验证明 ,所给算法不但计算简单 。In order to get the complex surface of piston skirt with barreled profile and varying ovality, a kind of algorithms which can simply get a cubic curve was given. In the program, first, the barreled profile of piston skirt is fitted for using the given algorithm. Secondly, the barreled profile is interpolated according to equal interval distance and the varying ovality is interpolated according to equal interval angle. Finally, the calculated data are saved through Microsoft Jet to the access database. It is proved through an example that the algorithm is simple and precise and the system can be used conveniently.

关 键 词：凸变椭圆活塞 裙部型面 样条插值系统 样条曲线 发动机 纵向型线 横向型线 活塞设计 

分 类 号：TK413.33[动力工程及工程热物理—动力机械及工程] TP391.72[自动化与计算机技术—计算机应用技术]