CAJ | 학술논문

推导了高次多项式非对称凸轮型线的解析式，编制了凸轮型线设计程序，并以某一车用柴油机顶置凸轮轴为例进行了非对称凸轮型线设计。计算结果表明：采用非对称凸轮型线不仅可以保持较高的丰满系数，而且可以使凸轮下降段升程曲线变化更平缓，同时降低气门的落座速度和落座加速度。气门下降段的速度最大值和加速度最大值明显降低。
추도료고차다항식비 대칭철륜형선적해석식，편제료철륜형선설계정서，병이모일차용시유궤정치철륜축위례 진행료비대칭철륜형선설계。계산결과표명：채용비대칭철륜형선불부가이보지교고적봉만 계수，이차가이사철륜하강단승정곡선변화경평완，동시강저기문적락좌속도화락좌가속도 。기문하강단적속도최대치화가속도최대치명현강저。
In this paper,the analytical functions of unsymmetrical cam profile with hig h-order polynomial have been conducted,a program of cam profile design has been compiled and taking a vehicular diesel engine with overhead cam as an example,a n unsymmetrical cam profile design has been conducted.The calculation example sh ows that unsymmetrical cam profile can not only maintain a rather high ample fac tor,but also make the declining part of lift curve change evenly,make the seatin g velocity and acceleration of the valve lower,and make the maximum velocity and maximum acceleration of valve reduce obviously at the declining part.