Analysis of Three Line Pendulum Experimental Phenomena

This paper experimentally and theoretically studied relationships between the period of three line pendulum swinging in the large angle and Swing angle. The measuring device of swing angle was made. The translation was found in the process of the three line pendulum swing. The translation period is about 5 times swing period. in addition,the situation of three line Pendulum damping was also studied. The periodic formula of damping situation was given.