Nonlinear effect of forced harmonic oscillator subject to sliding friction and simulation by a simple nonlinear circuit

• Published in: American journal of physics Vol. 87; no. 2; pp. 116 - 124
• Main Authors: Xu, Qian, Fan, Wenkai, Luo, Yao, Wang, Sihui, Jiang, Hongjian
• Format: Journal Article
• Language: English
• Published: Woodbury American Institute of Physics 01.02.2019
• Subjects: Differential equations; Diodes; Friction; Linear equations; Mechanical properties; Nonlinear systems; Oscillators; Simulation; Theoretical analysis

We study the nonlinear behaviors of mass-spring systems damped by dry friction using simulation by a nonlinear LC circuit damped by anti-parallel diodes. We show that the differential equation for the electric oscillator is equivalent to that of the mechanical system when a piecewise linear model is...