Analysis of problem optimization of parameters maintenance process according to state with constant periodicity of control

Zhyrov, Genadiy

doi:10.30534/ijeter/2020/63862020

Cited by 4 publications

(5 citation statements)

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“…The developed algorithm was applied to the test object Test-1, the structure of which is given in [3]. It is assumed that a database has already been created for the object and the necessary initial data have been entered into it.…”

Section: Resultsmentioning

confidence: 99%

“…The calculation of indicators of reliability and cost of operation (determination of MC parameters) must be performed at the stage of product design. Thus, there is a problem of optimizing the characteristics of the product (system) and the parameters of its MC, while maintaining the technical characteristics within the established limits [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Algorithm for optimizing the parameters of the maintenance process according to the state with a constant periodicity of control over the criterion of minimum unit cost of operation

2020

IJATCSE

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The problem of extending the service life of complex radio-electronic products and systems remains relevant in our time. Life extension is based on the effective operation of maintenance and repair systems. Each of these systems has its own strategies with corresponding parameters, and these parameters should be different for different products. The criteria that determine the parameters of these systems are often the criteria for minimizing the unit cost of operation and increasing the coefficient of technical utilization. The choice of criterion is determined by the nature of the tasks that the product (system) solves. Also, the parameters of the reliability of the product are significantly influenced by the parameters of the reliability of its component parts, as well as the correct design decisions.The article solves the problem of developing an algorithm for optimizing the parameters of the maintenance process of a radio-electronic product (system) using a maintenance strategy based on a condition with a constant monitoring frequency. The algorithm was developed for the criterion of minimizing the unit operating cost of an object, which is determined for a given period of operation, while ensuring a given requirement for the level of reliability of the object.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Algorithm for optimizing the parameters of the maintenance process according to the state with a constant periodicity of control over the criterion of minimum unit cost of operation

2020

IJATCSE

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“…Формули (1-8) відомі і показані в багатьох публікаціях, зокрема, у роботах [1,2,3,6]. Усі ці залежності, крім (7), (8), виходять з розв'язання лінійних диференціальних систем рівнянь, що відповідають графу станів марковського процесу з безупинним часом, зображеному на рис. 1.…”

Section: оцінка надійності і відновлюваності виробуunclassified

“…Для розрахунку показників надійності машин інженерного озброєння (прогнозування їхнього технічного стану з метою застосування адаптивних правил обслуговування і ремонту) використання формул (1)- (8) При дослідженні показників довговічності машин інженерного озброєння рекомендується пошук раціональних проміжків часу обирати на останніх інтервалах розбиття міжремонтних циклів, тому що значення комплексних показників надійності саме на останніх інтервалах розбиття міжремонтних циклів визначають значення показників довговічності виробу.…”

Section: рис 1 граф для визначення нестаціонарного коефіцієнта готоunclassified

A formalized representation of exponential models of the main indicators of reliability, the limitations of their use for the characteristics of engineering weapons

Поляков¹,

Krivtsun²,

Kalenyk³

et al. 2021

JMET

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The article deals with the solution of a scientific and applied problem to study the possibility of using existing exponential models to determine the reliability indicators of engineering weapons. Exponential models are widely used to assess the reliability of objects, mainly consisting of radio electronic elements, which led to their mass distribution in the aviation industry, air defense facilities, etc. Experimental operation of typical samples of military road-building equipment and experimental studies of the operating time of the main blocks and assemblies of engineering weapons show that the rate of failure and restoration of these products are functions of time. This state of affairs is associated with the design features of engineering weapons, which are characterized by the complex use of electrical, mechanical, hydraulic and other systems, while during use these systems can often experience significant overloads. At the same time, it should be borne in mind that today the engineering weapons that are in the units generally have a service life longer than that guaranteed by the manufacturer, which significantly affects the parameters of failure rates and recovery. The article shows the procedure for obtaining expressions for calculating the main indicators of the reliability of complex technical systems with an exponential distribution of operating time to failure and their recovery time and it is allowed to use them only for minimal periods of time (from several hours to several days, depending on the intensity of the use of machines) due to for the non-ergodic nature of the process of failures and restorations. In addition, the use of these models should be accompanied by an assessment of the adequacy of the results obtained to the real process with the adjustment of the duration of the corresponding time intervals. Thus, the construction of mathematical models of the technical state of engineering equipment will be accompanied by a search for other conceptual approaches to determining the reliability indicators of engineering equipment and methods for calculating these indicators.

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“…( = 0,097)На рис. 5 наведені отримані нами графіки функцій показників  Ці графіки практично аналогічні графіками, отриманим для стратегії ТОС з постійною періодичністю контролю, що отримані авторами в роботі[541]. Тому зроблені раніше висновки про вплив коефіцієнта варіації напрацювання до відмови елементів повністю поширюються і на випадок адаптивної стратегії ТОС.…”

unclassified

Scientific foundations of solving engineering tasks and problems

Vladlenov¹

2021

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Analysis of problem optimization of parameters maintenance process according to state with constant periodicity of control

Cited by 4 publications

References 1 publication

Algorithm for optimizing the parameters of the maintenance process according to the state with a constant periodicity of control over the criterion of minimum unit cost of operation

Algorithm for optimizing the parameters of the maintenance process according to the state with a constant periodicity of control over the criterion of minimum unit cost of operation

A formalized representation of exponential models of the main indicators of reliability, the limitations of their use for the characteristics of engineering weapons

Scientific foundations of solving engineering tasks and problems

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