Comparative experimental and numerical study on energy consumption of track-pin rubber bushing for high-speed tracked vehicles

Abstract

During the running of high-speed tracked vehicles, the energy loss due to the rotation and tension-compression deformation of the rubber bushing between the track pin and the track plate causes the largest proportion of energy consumption in tracked vehicle propulsion systems; therefore, it is critical to study energy consumption of this component as it is the largest amount of energy loss of the system. First, the theoretical modeling and analysis of the torsional hysteresis and the tension-lag of the hanging glue on the pin of the track pin are conducted. Both energy loss of torsional hysteresis and energy loss of the hysteresis of tension and pressure are obtained when the rubber bushings pass the sprocket, the road wheel, and the idler. Second, a new and novel rubber bushing model based upon the rubber bushing elastic element, the friction element, and the viscoelastic element is proposed. Then the parameters (such as the static elastic stiffness and the maximum friction) of each unit are identified according to the dynamic characteristic experiment. Finally, the numerical simulation results of MATLAB with different stiffness and damping coefficient in addition to tension and compression energy consumption under different frequencies are obtained, and the comparisons are basically consistent with the experimental results; the average errors are less than 8%. The present analytical calculation model is practically useful and can meet the requirements of engineering applications.

Research on dynamic stiffness with the high-order fractional derivative model for rubber bushing

“…At present, the insufficient accuracy of the bushing model is the main reason for the low dynamic simulation accuracy of vehicle and subsystem models. [1][2] Therefore, it is of great significance to establish an accurate model to describe the dynamic characteristics of rubber bushings.…”

Modeling and analysis of high-frequency dynamic characteristics of double isolation rubber mounts

“…The common dynamic models include the Kelvin-Voigt model, 16 Maxwell model, 17 generalized Maxwell model, 18 fractional derivative model, 19 and friction model. 20 Some scholars have used these dynamic models to calculate the high-frequency dynamic characteristics of rubber mounts. Wollscheid and Lion 21 introduced the constitutive approach of finite viscoelasticity and established a generalized Maxwell model to describe the frequency-dependence with respect to storage- and loss-modulus of rubber in the high-frequency range.…”