Approximate solution for a class of relative rotation nonlinear dynamic model
一类相对转动非线性动力学模型的近似解

A class of relative rotation nonlinear dynamical model with nonlinear damping force and forcing periodic force is investigated. First, a homotopic mapping is constructed, and then the initial approximate solution is determined. Finally, using the homotopic mapping method, the arbitrarily degree approximation for corresponding model is found.