ANALYSIS OF EFFECTIVENESS OF PROCESS OPERATIONAL AND TECHNOLOGICAL RELIABILITY OF COMBINE HARVESTERS
Keywords:
analyze, effectiveness, process, operation, technology, reliability, combineAbstract
The analysis suggests that to solve the contradiction between the need of ensuring the required level of serviceability
of combine harvesters and capabilities of existing system and repair management of the technical state of combine
harvesters at the present stage, there is a need to improve the subsystem recovery combine harvesters subject to the
requirements of readiness to perform tasks on purpose and financial capacity for its maintenance. Analysis of
scientific literature showed that today the unsolved problem of search and introduction of effective methods and
repair combine harvesters are: development of mathematical models of the process and repair, which would allow
comparative assessment of technical and economic efficiency of different modes, and repair objects combine
harvesters, alternative strategies for their repair, with the aim of improving the quality of control of technical
condition of the vessel in conditions of limited funding. Consideration of the process of technical maintenance of
combine harvesters as a set of stages and repair objects combine harvesters allows to identify possible directions of
improving the system restore. The analysis allowed to determine four basic options for its organization and to make a
qualitative assessment of the benefits and disadvantages of each of these options. Reduced operating costs in the
operation of combine harvesters, along with other measures of organizational and technical nature require greater
automation of control of technical condition. Automation of technical state control of combine harvesters developed
in the following areas: embedded systems control, on-board automated control systems, specialized control systems
and universal control systems dismantled equipment. A large share of false failures in equipment, violation of
industrial relations in the repair network on-board equipment, the shortage of maintenance fund requires
implementation and operation. Most fully able to examine the efficiency of the process of operation of complex
technical systems using analytical models. Existing approaches to the assessment of the recovery system can be
classified also according to the used indicators of effectiveness: the number of constructive variables of units that are
replaced (restored) for a predetermined period of operation of the control object, repair cost of the constituent
elements of the functional system for a specific period at different depths of the control and completeness of the
recovery, the downtime of the test object within a certain period, for comprehensive reliability, such as coefficient of
readiness, coefficient of technical use.
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