Failure risk control method in providing technical safety of transportation engineering vehicle operation for reclamation work
2020
Sevryugina, N., Russian State Agrarian Univ. − Moscow Timiryazev Agricultural Academy (Russian Federation) | Apatenko, A., Russian State Agrarian Univ. − Moscow Timiryazev Agricultural Academy (Russian Federation)
Analytical studies show that the vehicle performance characteristic aspects considerably impact the efficiency of service and operating entities, though these vehicles are of the same kind. These studies put emphasis on working efficiency of transportation engineering vehicles used for reclamation work. Integration of systems for safe vehicle operation in technological vehicle structure is substantiated. The need to develop not only functionality, but safety and performance capability of technological vehicles as well is emphasized. The brake system of a transportation engineering vehicle is taken as an example for practical substantiation of theoretical researches. The goal of the research: substantiate scientific multimodal approach to solution of control tasks for technical state and operation safety of transportation and engineering vehicles by means of predictive failure risk control, by the example of operating analysis of a brake system of a transportation engineering vehicle. Multimodal approach is proposed for solution of failure risk tasks concerning the vehicle and mechanism technical system by means of basic mathematical modelling theories, Taylor expansion and infogram construction on the basis of basic Boolean algebra provisions. It is suggested that for the system operability description it is necessary to assess the technical performance variation with consideration of the previous impact factors. A mathematical model of parameter variation intensity in form of Taylor expansion is presented. A three-parameter system model is taken as an example. The system failure risk detection task is solved by construction of Boolean functions. It is suggested to record logical links of technical system elements considering their conjunction, inversity and disjunction. A parametric structural model is designed for resource calculation and failure risk detection in the element base of a certain unit of transportation vehicles. The brake system is used as an example.
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