Synchronized modes of coupled oscillator system on liquid surface
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摘要:利用MATLAB对耦合双节拍器系统模型的动力学方程组进行了数值模拟，发现初始条件决定了系统达到稳态时所呈现的同步模式；探究了液体的黏滞阻力与耦合板的质量对系统同步模式的影响，黏滞阻力的大小与稳态时为反相同步的概率呈正相关关系；耦合板质量与稳态时为反相同步的概率呈负相关关系；在弛豫时间方面，发现同相同步比反相同步的平均弛豫时间更慢；在实验上，搭建液面上的耦合振子系统，使用水、质量分数为10%的盐水和食用油3种黏滞系数不同的液体进行实验，定性地得到了与数值模拟一致的结果．Abstract:In this article, a coupled oscillator system model was adopted, and its dynamics equations were numerically simulated with MATLAB．The initial conditions of the system determined the synchronization mode when the system reached steady state．Simulation on viscous resistance of liquid and quality of coupling plate showed that viscous resistance was positively correlated with probability of anti-phase synchronization, mass of coupling plate was negatively correlated with probability of anti-phase synchronization in steady state．In terms of relaxation time, it was found that average relaxation time of in-phase synchronization was slower than anti-phase synchronization．A coupled oscillator system was set up on the surface of the liquid, and three kinds of liquid with different viscosity coefficients, water, salt water with a concentration of 10% and cooking oil, were used．Experimental results are qualitatively consistent with numerical simulations．
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