文章BIFURCATION AND CHAOS IN GEARED ROTOR BEARING SYSTEM BY INCREMENTAL HARMONIC BALANCE METHOD中提到过A path following procedure using arc length continuation technique,与你的问题“the arc-length continuation algorithm”的方法基本相同,我个人觉得the arc-length continuation algorithm是一种弧长算法,王勖成的书《有限元单元法》的第639-641页有介绍,具体的内容你再找算法类的书看看