16V240ZJC柴油机凹弧三元弧供油凸轮加速度突变点函数拟合

Function Fit of Acceleration Singularities of Concave Flank Three Radius Supply Cam in 16V240ZJC Diesel Engine

分析了机车柴油机喷射噪声产生的原因,针对16V240ZJC柴油机采用的凹弧三元弧供油凸轮加速度不连续问题进行了几种函数拟合的计算研究,编制了计算程序,最终获得了比较理想的。

The reason of injection noise occurrence for locomotive diesel is analyzed . For the problem of acceleration discontinuity of concave flank three radius supply cam for 16V240ZJC diesel enging,the computing study of several types of function fit are conducted,the computing program is composed, and the idcal cam profile with continuous acceleration is obtained.