原子力显微镜动力学行为的数值分析

Numerical Analysis of Dynamics in Atomic Force Microscopes

以原子力显微镜单自由度模型为研究对象,在考虑激励和摩擦的情况下,应用相轨迹、Poincare图、Lyapunov指数、分叉图等对硅—硅模型系统进行分析计算,说明在其它参数不变激励频率为基频率和2倍基频时激励振幅对杆的影响。

Take the single mode model of microcantilever-sample in an atomic force microscope as research subject. The phase trajectory, poincare maps and bifurcation map have been used to analyze and calculate the silicon-silicon model with consideration of encouragement and friction. The effect of pole is demonstrated when excitation amplitude is single or double basic amplitude while other parameters are fixed.