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Article

  • Title

    Assessment of the motor vehicle reliability key indicators

  • Authors

    Maksimov Valery G.
    Nitsevich Alexander D.
    Tkachev Oleksiy А.

  • Subject

    MACHINE BUILDING. PROCESS METALLURGY. MATERIALS SCIENCE

  • Year 2015
    Issue 1(45)
    UDC 629.33.017:656.13
    DOI 10.15276/opu.1.45.2015.08
    Pages 44-50
  • Abstract

    Considered is a problem of longevity estimation and guaranteeing the preplanned lifespan of the automobile’s parts, assemblies and structural units. The main statistical indicators of machine parts durability include such parameters as their gamma-percentile life and the mean lifespan index. Estimated is the role of gamma-percentile life as the basis for the wares’ guaranteed MTBF selecting. Rapid-tests represent an effective direction in the estimation of the mean and gamma-percentile wares’ life. While various parts’ bench tests suggested is the use of “longevity factor” that characterizes the ratio of a piece’s gamma-percentile life to its median resource. Such assessment of the relationship between components’ and assemblies’ gamma-percentile life and their mean lifespan is shown on the example of trucks. The algorithm offered uses the rapid tests’ results for transition to the mean lifespan in practical exploitation. Main stages of the resource calculation methodology are described with examples of determining the mean lifespan for transmission parts.

  • Keywords reliability, gamma-percentile resource, product longevity
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  • References

    Література
    1.    Панкратов, Н.М. Оценка ресурса сварных металлоконструкций мобильных машин / Н.М. Панкратов, А.В. Кравчук, В.С. Кравчук // Праці Одеського політехнічного університету. ― 2000 ― Вып. 1(10). ― С. 30―32.
    2.    Дащенко, А.Ф. Критерии предельного состояния секций стрел кранов / А.Ф. Дащенко, Н.М. Панкратов, Абу Айаш Юсеф // Оценка и обоснование продления ресурса элементов конструкций: Тр. междунар. конф. ― К., 2000. ― С. 71―73.
    3.    Форнальчик, Є.Ю. Технічна експлуатація та надійність автомобілів / Є.Ю. Форнальчик, М.С. Оліскевич, О.Л. Мастикаш, Р.А. Пельо. ― Л. : Афіша, 2004. ― 492 c.

    References
    1.    Pankratov, N.M., Kravchuk, N.M., & Kravchuk, V.S. (2000). Resource Evaluation of Vehicle Welding Constructions. Odes’kyi Politechnichnyi Universytet. Pratsi, 1, 30–32.
    2.    Dashchenko, A.F., Pankratov, N.M., & Yusef, A.A. (2000). Criteria Limiting Condition of the Crane Boom Sections. In V.T. Troshchenko (Ed.), Proceedings of the International Conference on Evaluation and Justification of Extending Life of Structural Elements (Resource-2000) (pp. 71–73). Kyiv, Ukraine: IPS, NAS of Ukraine.
    3.    Fornalchik, Ye.Yu., Oliskevich, M.S., Mastykash, O.L., & Pelio, R.A. (2004). Technical Operation and Reliability of Cars. Lvіv: Afisha.

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