Analysis of operation models of complex technical systems

Ershov, D. S.; Malakhov, A. V.; Talalai, A. V.; Khayrullin, R. Z.

doi:10.1007/s11018-023-02248-z

Cited by 3 publications

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Metrological reliability of primary transducers taking into account element stability and accuracy

Raxmonov,

Masharipov,

Rakhmatullaev

et al. 2024

E3S Web Conf.

View full text Add to dashboard Cite

Probabilistic characteristics of reliability of transient states of semiconductor converter when working together with integrated circuits are considered. The probability of effective transition of the integrated circuit, functioning with semiconductor converter, from the state of logical zero to the state of logical one is established and the corresponding probabilistic equations at sufficient signal and pause duration are obtained. During the period of operation of information and measurement devices and systems, failures occur, which can be sudden and gradual. Sudden failures are categorised as random events. The physical nature of sudden failures is due to the concentration of loads causing corresponding internal damage in the form of winding breakage or short circuit, parts breakage and others. Failure of any element and information device, in particular, measuring transducer of physical quantities, can be determined by the action of the following factors: structural imperfections of the initial materials of the product due to the presence of impurities, dislocations and concentration gradients; external influences - thermal mechanical and electrical loads.

show abstract

Metrological reliability of primary transducers taking into account element stability and accuracy

Raxmonov,

Masharipov,

Rakhmatullaev

et al. 2024

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

To the Question of Increasing the Reliability of Measurements on the Basis of Application of Bayesian Approach

Khayrullin,

Zenger

2024

2024 6th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)

View full text Add to dashboard Cite

Risk-oriented approach in the problems of modeling of metrological support of the measuring instrument fleet

Khramenkov,

Khayrullin

2023

jour

View full text Add to dashboard Cite

The methods of management of metrological support of the measuring instrument fleet are considered. The modern situation is described, when the fleet of measuring instruments is heterogeneous and includes both obsolete samples of measuring instruments with a long service life and significant operating time, and the newest, high-tech samples of measuring instruments. At the same time the proportions between the mentioned groups of measuring instruments change over time, as the ageing of measuring instruments and their transition from one group to another takes place. Also the measurement instrument park is renewed as a result of purchases of new and modernization of existing samples. The heterogeneity of the measuring instrument park leads to the necessity of development and application of new methods of management of metrological support of the measuring instrument park, including the use of mathematical modeling. One of the promising methods of metrological management of the measuring instrument fleet based on the risk-oriented approach is proposed. The probability of finding a randomly selected sample of measuring instruments from the measurement instrument park at an arbitrary moment of time in the state of unreadiness for intended use is used as a risk indicator for the measuring instrument park. In accordance with the risk-oriented approach the measuring instrument park is divided into risk classes. The algorithm of assigning measuring instruments to different risk classes is developed, based on solving a series of optimization problems of the fleet operation taking into account the processes of aging and renewal of the fleet of measuring instruments. The results of application of the risk-oriented approach in the problem of modeling of metrological support of heterogeneous fleet of measuring instruments including both modern and obsolete samples with different metrological characteristics, MTBF and lifetime are presented. It is shown that by dividing all samples of measuring instruments into risk classes and carrying out verifications with their close to optimal periodicity and with their tolerance for controlled parameters in each risk class it is possible to minimize the total average risk for the fleet of measuring instruments and at the same time to achieve resource saving.

show abstract

Analysis of operation models of complex technical systems

Cited by 3 publications

References 20 publications

Metrological reliability of primary transducers taking into account element stability and accuracy

Metrological reliability of primary transducers taking into account element stability and accuracy

To the Question of Increasing the Reliability of Measurements on the Basis of Application of Bayesian Approach

Risk-oriented approach in the problems of modeling of metrological support of the measuring instrument fleet

Contact Info

Product

Resources

About