Nonlinear dynamic analysis of power reflux hydraulic transmission system

Power reflux hydraulic transmission system (PRHTS), which is a recently introduced continuously variable system, enables the improvement of fuel economy construction vehicles. For investigating nonlinear dynamic characteristics PRHTS, its model established by merging models planetary gear train and torque converter. A dynamical reveals parameters mesh damping, time-varying stiffness, error. The equations PRHTS are solved using fourth-order Runge-Kutta method. orbits observed through bifurcation diagrams, use internal excitation frequency meshing damping ratios, both dimensionless, as control parameters. Numerical examples show evolution mechanism involving one-period motion, multi-periodic quasi-periodic chaotic motion. onset motion identified from trajectories, phase plane diagram, Poincaré maps PRHTS. simulation results provide an understanding operating conditions under undesirable occurs in serve invaluable information for effective design