Mariusz Stańco

Determination of Centre of Gravity of Machines with the Rail Undercarriage

Determination of centre of gravity of rotational handling machines with the rail undercarriage can be conducted by the measurement of rails strains induced by the wheels of driving machine. At the properly selected combination of superstructure locations with respect to undercarriage, it is possible to eliminate the systematic measurement failures. Determination of centre of gravity is necessary for proper weighing of the machine and selection counterweight. Otherwise it can cause the loss of stability or fast degradation of superstructure rotation bearing.

Numerical and Experimental Analysis of a Truck Frame

Calculating the stress level of the load-carrying structure of a vehicle’s frame based on data obtained from literature can be unreliable. It is crucial to know the operating characteristics of a given vehicle. In the presented example, it was necessary to understand the phenomena that occur during operation of a vehicle, which could not travel a selected test distance without sustaining damage to the load-carrying structure. Attempts to improve the structure based solely on the analysis of damage did not bring satisfactory results. Only after performing numerical simulation of vehicle operation and an in-depth analysis of the problem was it possible to modify the frame so that it would pass the roadworthiness tests and qualify for registration.

The Model of Estimating the Loss of Maintenance Potential the High Mobility Wheeled Vehicle

In the paper, the model of estimating the loss of maintenance potential of high mobility wheeled vehicles within proving ground tests is presented. This problem is up-to-date, especially important for military vehicles. The authors have analysed the selected requirements directed to this class of vehicles. In the main body of the paper, some model that could be applied in on-line system of prognostic Health and Usage Monitoring System (pHUMS) was presented. This model can be used to analyse information about the maintenance process of vehicle before some maintenance decision would be made.