Chaotic pendulum experiment based on PASCO system
Li Jin · Physics Experimentation · 2011
A development of chaotic pendulum instrument was made,which could demonstrate chaos phenomenon driven by periodic force based on PASCO system.Adjusting the parameters of the chaotic pendulum instrument,the system could demonstrate different nonlinear dynamic actions,plot phase diagram sunder situations with or without driving force,and then analyzing sensitivity to the initial value and singularity.Using the dynamic equation for the chaotic pendulum,the simulation experiment based on Matlab was carried out.The results indicated that the properties of the chaotic pendulum dynamic system were sensitive to the driving frequency,and a threshold value of the driving amplitude existed for the appearance of chaos phase.