大学物理 ›› 2014, Vol. 33 ›› Issue (11): 34-34.

• 著者文摘 • 上一篇    下一篇

从受迫振动到混沌的实验系统设计

程敏熙 肖凤平 李志为   

  1. 华南师范大学物理与电信工程学院,广东广州510006
  • 出版日期:2014-11-25 发布日期:2014-11-20

Designing of a chaotic movement system based on forced oscillation

  • Online:2014-11-25 Published:2014-11-20

摘要: 研究构建了一个由椭圆轨道方式驱动的弹簧振子混沌运动系统,它基于弹簧振子受迫振动的形式并符合混沌运动的条件.椭圆轨道长半轴a=20 mm,短半轴b=16 mm,驱动电机是由单片机模块控制的调频直流电机,角速度ω的范围是20~80 r/min,振子的位移x由朗威DisLab数字化实验系统测量.实验结果与理论模拟符合较好.

关键词: 受迫振动, 混沌, 椭圆轨道驱动

Abstract: A chaotic movement system of spring oscillator driven along elliptical orbit is set up. It is based on forced oscillation and coincided with the condition of chaos. Major semi-axis and minor semi-axis of elliptical orbit are a =20 mm, b= 16 mm. Driving motor worked on a mode of frequency modulation which controlled by singlechip microcomputer. The range of angular velocity co is 20- 80 r/min. The displacement of oscillator is detected by DisLab system. The experiment result is in agreement with theoretical simulation well.

Key words: forced oscillation, chaos, driven along elliptical orbit

中图分类号: 

  • O4-33