Analytical model of modes technical control of grainharvester combines
DOI:
https://doi.org/10.31548/dopovidi2019.05.015Keywords:
model, stochasticity, adequacy, optimization, mode, control, combineAbstract
Depending on the optimization problem of the various possible solutions, including those that involve changes not only the parameters of the technical state of the combine harvesters, but also the structure of the regime of technical control, development and use of various combinatorial and complex models with different types of technical control over the actual technical condition that can be related to the need for its continuous or periodic technical inspection.
Along with the criterion of maximum allowable failure probability to determine the duration of operation of the processor between successive technical controls are also used mathematical criteria. The requirements for technical readiness of the combine perform the role of the constraints. Then the task management of the technical readiness of the combine harvester during operation can be formalized with the well-known principle, which is the algebraic sum of works of all possible probabilities of disability, and the damage from the downtime of the processor of these events. The article proves expediency of application of the method of determining the optimal frequency of technical control of combine harvesters for specified failure rate, complexity of technical control and the ratio of costs in case of refusal in maintenance control allows to minimize the value of the aggregate of the optimization functions to ensure the technical readiness of the processor and ensure optimum management of this process.
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