Research and simulation of load modes in the evaluation of mobile machines resource

The authors examine the trends of mobile machines development, 90% of innovations in which are carried out with the use of electronics and control systems. It is noted that mechanical systems of the vehicles are becoming more and more dependent on electronics. Methods and means of measurements for the monitoring of mobile machines operation conditions are presented. The original data measuring system has been developed to determine the values of external loads, displacements, accelerations, estimation of dynamic stresses that are synchronously recorded in the memory of a microcomputer with the following statistical processing and systematization of the results. On the basis of system analysis of the loading and the nature of the fatigue resistance of the hazardous elements, the resource of mobile machines is predicted taking into account multi-frequency and multi-mode loads.