College Physics ›› 2022, Vol. 41 ›› Issue (5): 47-.doi: 10.16854/j.cnki.1000-0712.210506

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Using PASCO system to study the vibration of  two-degree freedom system under resistance 

ZHAO Zi-yuan1, ZHAO Kang-xin1, LANG Chi-cheng1, KANG Xiu-ying2   

  1. 1. Leyu College, Beijing Normal University, Zhuhai 519087, China; 
    2. Department of Physics, Beijing Normal University, Beijing 100875, China
  • Received:2021-10-13 Revised:2021-11-08 Online:2022-05-20 Published:2022-05-11

Abstract: In this paper the vibration of two-degree freedom system was explored in theoretic and experimental way, and a set of motion equations was given by considering the influence of friction and air resistance. Three springs and two position sensors were used to build an experimental device. The PASCO system was used for experiments which were compared with the numerical simulation results. The friction forces of the two sensor sliders in this system were obtained as 0.003 075 N and 0.003 225 N, and the air resistance coefficient was C=1.0. The accuracy of the modelling of the studied system was also verified. The experimental results have a certain reference value for the study of vibration problem of two-degree freedom system.

Key words: PASCO experimental system, friction, vibration