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  • 1
    Online Resource
    Online Resource
    Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne ; 2020
    In:  Eksploatacja i Niezawodność – Maintenance and Reliability Vol. 22, No. 2 ( 2020-6-30), p. 340-351
    In: Eksploatacja i Niezawodność – Maintenance and Reliability, Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne, Vol. 22, No. 2 ( 2020-6-30), p. 340-351
    Abstract: Electronics, such as those used in the communication, aerospace and energy domains, often have high reliability requirements. To reduce the development and testing cost of electronics, reliability analysis needs to be incorporated into the design stage. Compared with traditional approaches, the physics of failure (PoF) methodology can better address cost reduction in the design stage. However, there are many difficulties in practical engineering applications , such as processing large amounts of engineering information simultaneously. Therefore, a flexible approach and a software system for assisting designers in developing a reliability analysis based on the PoF method in electronic product design processing are proposed. This approach integrates the PoF method and computer-aided simulation methods, such as CAD, FEM and CFD.The software system integrates functional modules such as product modeling, load-stress analysis and reliability analysis, which can help designers analyze the reliability of electronic products in actual engineering design. This system includes software and hardware that validate the simulation models. Finally, a case study is proposed in which the software system is used to analyze the filter module reliability of an industrial communication system. The results of the analysis indicate that the system can effectively promote reliability and can ensure the accuracy of analysis with high computing efficiency.
    Type of Medium: Online Resource
    ISSN: 1507-2711 , 2956-3860
    Uniform Title: Metoda i oprogramowanie do analizy niezawodności urządzeń elektronicznych oparte na połączeniu metodologii fizyki uszkodzeń i symulacji komputerowej
    Language: Polish
    Publisher: Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
    Publication Date: 2020
    detail.hit.zdb_id: 2257067-6
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  • 2
    Online Resource
    Online Resource
    Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne ; 2019
    In:  Eksploatacja i Niezawodność – Maintenance and Reliability Vol. 21, No. 3 ( 2019-9-30), p. 501-510
    In: Eksploatacja i Niezawodność – Maintenance and Reliability, Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne, Vol. 21, No. 3 ( 2019-9-30), p. 501-510
    Abstract: Space station is a very complex system, and its remaining useful life will be affected by the key equipment, cosmonauts’ maintenance activities as well as space environments. It is important for the operation management of a space station to predict its remaining useful life (RUL). A valid RUL prediction model is the key foundation for this issue, which motivates the research presented in this paper. Firstly, different types of space station life are defined. Secondly, the function and performance requirements as well as the operation mission program of the space station are analysed, which are further used to confirm the model development precondition. A life prediction model is then proposed by synthetically taking account of the safety, reliability and maintainability restrictions. Finally, the data requirement for supporting the RUL prediction is determined. Based on this work, a comprehensive procedure for RUL prediction model development is constructed for the operation management engineers of the space station. If the data of the development and operation is adequate, RUL prediction of the space station can be well implemented, and can be further leveraged to support the space station operation management.
    Type of Medium: Online Resource
    ISSN: 1507-2711 , 2956-3860
    Uniform Title: Model predykcji pozostałego czasu pracy stacji kosmicznej
    Language: Polish
    Publisher: Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
    Publication Date: 2019
    detail.hit.zdb_id: 2257067-6
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  • 3
    Online Resource
    Online Resource
    Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne ; 2020
    In:  Eksploatacja i Niezawodność – Maintenance and Reliability Vol. 22, No. 2 ( 2020-6-30), p. 241-252
    In: Eksploatacja i Niezawodność – Maintenance and Reliability, Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne, Vol. 22, No. 2 ( 2020-6-30), p. 241-252
    Abstract: Series systems, whose structures are simple, are widely discovered in practical engineering, but the interdependency between the components is complex, such as common cause failure. With the consideration of the components’ strength, this paper focuses on ranking the importance measure of components considering the common cause failure based on the stress-strength interference (SSI) model. The weakest component can be identified by integrating the SSI model with the importance measure when the strength mean and variance of the component under the load stress is known. Firstly, the analytic methods are proposed to calculate the SSI-based importance of components in the series systems. Then, the monotonicity of SSI-based importance is analyzed by changing the strength mean or strength variance of one component. The results show that the SSI-based importance of components, whose parameters are changed, will reduce monotonically with the increase of strength mean or increase monotonically with the increase of strength variance. Finally, a component replacement method is developed based on the rules that both the importance of replaced component and the importance ranks should be unchanged after the replacement. SSI-based importance can help engineers to make maintenance decisions, and the component replacement method can increase the diversity of spare parts by finding the equivalent components.
    Type of Medium: Online Resource
    ISSN: 1507-2711 , 2956-3860
    Uniform Title: Ocena opartej na modelu obciążeniowo-wytrzymałościowym ważności elementów systemu szeregowego z uwzględnieniem uszkodzeń wywołanych wspólną przyczyną
    Language: Polish
    Publisher: Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
    Publication Date: 2020
    detail.hit.zdb_id: 2257067-6
    Location Call Number Limitation Availability
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  • 4
    Online Resource
    Online Resource
    Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne ; 2020
    In:  Eksploatacja i Niezawodność – Maintenance and Reliability Vol. 22, No. 1 ( 2020-3-31), p. 170-178
    In: Eksploatacja i Niezawodność – Maintenance and Reliability, Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne, Vol. 22, No. 1 ( 2020-3-31), p. 170-178
    Abstract: Traditional reliability models, such as fault tree analysis (FTA) and reliability block diagram (RBD), are typically constructed with reference to the function principle graph that is produced by system engineers, which requires substantial time and effort. In addition, the quality and correctness of the models depend on the ability and experience of the engineers and the models are difficult to verify. With the development of data acquisition, data mining and system modeling techniques, the operational data of a complex system considering multi-state, dependent behavior can be obtained and analyzed automatically. In this paper, we present a method that is based on the K2 algorithm for establishing a Bayesian network (BN) for estimating the reliability of a multi-state system with dependent behavior. Facilitated by BN tools, the reliability modeling and the reliability estimation can be conducted automatically. An illustrative example is used to demonstrate the performance of the method.
    Type of Medium: Online Resource
    ISSN: 1507-2711 , 2956-3860
    Uniform Title: Nowatorska metoda oceny niezawodności systemów wielostanowych w oparciu o algorytm uczenia struktury
    Language: Polish
    Publisher: Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
    Publication Date: 2020
    detail.hit.zdb_id: 2257067-6
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