1) sine-parabolic
正弦-抛物线
1.
By simulating,computing and analyzing FB2,sine-parabolic and high-order polynomial the cam profile of asymmetrical valve train,the influences of characteristic parameters such as velocity at the end of buffering zone,lift at the end of buffering zone,half-angle of base zone on the cam profile,and the valve movement as well as the self characteristic response of every cam profile were analyzed.
通过对复合二摆、正弦-抛物线、高次多项式3种非对称配气凸轮型线的仿真计算和分析,总结出了缓冲段终点速度、缓冲段终点升程、基本段半包角等特性参数的变化对几种凸轮型线和气门运动规律影响的共性和各型线自身的特征响应,为配气凸轮型线设计方案的选择和目标性设计调整提供了参考依据。
3) inferences of parabolic chord
抛物线弦推论
4) theorems of parabolic chord
抛物线弦定理
5) parabolic chord truss
抛物线形折弦桁架
6) positive ray parabolas
正射线抛物径迹
补充资料：Neil抛物线
Neil抛物线
Nal parabola
N‘抛物线汇N斑钾，加.;~‘。，一一j 半立方抛物线(~一cubicP肚川刀la)，因W .Ne江 ‘击工’‘明生资出这一曲线的弧长.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条