关键词: 双弹簧振子, 非线性振动, 振幅, 周期

Abstract: The free vibration along the vertical direction of the symmetric double spring oscillator is studied by using numerical simulation method. The regularity which the properties of the vibration change with the system parameters and the amplitude is revealed. This work enrichs the study of spring oscillator.

Key words: double spring oscillator, nonlinear vibration, amplitude, period