PDF
ZENODO
Published
2025-09-23
Section
Articles
How to Cite
How to Cite
CALCULATION OF STATISTICAL PARAMETERS OF THE FLOW OF REQUIREMENTS ARISING IN PLOWING AGGREGATES.
Rakhmatali Rustamov
Namangan State Technical University, Professor,
Ilkhom Kholmirzaev
Namangan State Technical University, doctoral student
Ikromjon Sheraliev
Namangan State Technical University, Senior Lecturer
Keywords: Plowing units, demand flow, exponential distribution, mathematical expectation, variance, coefficient of variation, service system, confidence interval, Namangan region, Arion-630s tractors.
Abstract
The article covers the issue of analyzing the flow of demand arising in plowing units used in agriculture. During operation, tractors and working machines cause various malfunctions and maintenance requirements. These requirements have the character of a random process, and methods of probability theory and mathematical statistics are used for their analysis. The study examined 169 patients in the Namangan region during 2021-2023. The set of malfunctions noted in the plowing units of the Arion-630s during the autumn plowing season and the requirements for their elimination were studied. As a result, the main statistical parameters of the demand flow - mathematical expectation, variance, coefficient of variation - were determined, and an empirical histogram of the distribution was compiled. Based on the obtained data, the characteristics of the demand flow, subject to the exponential law, are substantiated, and the limits of the confidence interval are calculated. The research results are of practical importance in the effective planning of the maintenance system, determining the optimal location of service centers and repair shops.
References
1. Томаев Б.М. Надежность строительного потока. –Москва: Стройиздат, 1983. –128 с.
2. Рустамов Р.М., Сейтимбетова З. Оммавий фирмали техник сервис кўрсатиш тизимининг параметрлари ва уларнинг статистик моделлари // Юқори самарадор тракторлар, қишлоқ хўжалиги машиналари ва ускуналрини яратиш ва ишлатиш масалалари. ЎзМЭИ илмий ишлар тўплами. – Тошкент, 2013. – Б. 474-482.
3. Кос И.И., Зорин В.А. Основы надежности дорожных машин. – Москва: Машиностроение, 1978. –165 с.
4. Гетопанов В.Н., Рачек В.М. Проектирование и надежность средств комплексной механизации. – Москва: Недра, 1986. –208 с.
5. Тошболтаев М., Рустамов Р., Қобулов М. Қишлоқ хўжалигида ҳудудий фирмавий техник сервис системаси. – Тошкент, 2007. –182 с.
6. R.Rustamov, D.Ibragimov, B.Egamnazarov, Z.Seytimbetova, Z.Sarkarova. Methodology Of Development Of Technical And Economic Model Of Agricultural Machinery Dealer Point.- Nat. Volatiles & Essent. Oils, 2021; 8(4): 2649-2655
