Abstract The current research on the integrity of critical structures of rail vehicles mainly focuses on the design stage, which needs an effective method for assessing the service state.This paper proposes a framework for predicting the remaining useful life (RUL) read more of in-service structures with and without visible cracks.The hypothetical
ObjectiveThe time-varying mesh stiffness of gear pairs, as one of the most important internal excitation of the gear system, is an important reason for the vibration and noise of the gear system.In previous studies, tooth surface modification and shock absorber were often used to improve the vibration response of the system, but there are few liter
This paper deals with the issue of the multi-switching sliding mode combination synchronization (MSSMCS) of fractional order (FO) chaotic systems with different structures and unknown parameters under read more double stochastic disturbances (SD) utilizing the multi-switching synchronization method.The stochastic disturbances are considered as nonl
Smolensk region belongs to the regions, where the natural complex retains the natio celebrate eyeshadow palette satisfactory state, and the menace of the natural ecosystems loss is not high.Politics of the Administration of the Smolensk region in the field of the environment protection and the rational nature management is directed to the environme