Classification of road construction machinery operating conditions

In the article, based on the generally recognized need to address the issues of accounting for the operating conditions of various equipment, an analysis of the classification of the operating conditions of rolling stock of motor transport is given. The features of the classification of operating conditions of road-building machines are considered, the reasons for the absence of a standard methodology for solving this problem are identified.

The article for the first time offers a method for classifying the operating conditions of front-end loaders. Classification methods are based on methodological developments of the authors and experimental material obtained as a result of operational observations of a batch of 47 front-end loaders. According to the nature of the work of loaders, six industries were identified in which the working conditions of the machines differed in the range of cargo transportation, the height of their lifting and other factors. As a result of the analysis of variance, six industries were transformed into three categories of loader operating conditions.

Processing of experimental samples of front-end loader developments for failure in different categories of operating conditions allowed us to establish the parameters of the Weibull distribution law, on the basis of which the dependences of the normalized indicators of technical operation of loaders on influencing factors were obtained and the coefficients of adjustment of standards for the categories of operating conditions under consideration were based. In conclusion, an assessment of the accuracy and reliability of the results was carried out. The developed methodology has yielded positive results in relation to front-end loaders and can be recommended for the classification of operating conditions and adjustment of standards of technical operation of other road construction machines.

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