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Reliability Engineering

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  1. [11]
    زكريا ابو السعود
    زكريا ابو السعود غير متواجد حالياً
    جديد


    تاريخ التسجيل: Dec 2009
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    ارجو ارسال محاضرة أوكتاب بسيط عن مفهوم ال ٌReliability وجزاكم الله كل الخير

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  2. [12]
    elsalhien
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    عضو فعال


    تاريخ التسجيل: Sep 2005
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    اقتراح جيد
    و أتمنى من الجميع المشاركة

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  3. [13]
    hke
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    عضو فعال


    تاريخ التسجيل: Sep 2006
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  4. [14]
    soud54
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    الصورة الرمزية soud54


    تاريخ التسجيل: Jan 2007
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  5. [15]
    soud54
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    الصورة الرمزية soud54


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  6. [16]
    hke
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  7. [17]
    Eng. Yasser
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    جديد


    تاريخ التسجيل: Dec 2004
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    أنا وظيفتي قائد اعتمادية في الشركة
    اللي عنده أي سؤال أنا حاضر

    ومنكم نستفيد

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  8. [18]
    مهاجر
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    مشرف عــــــــام
    الصورة الرمزية مهاجر


    تاريخ التسجيل: Jun 2003
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    السلام عليكم

    أشكر طارح الموضوع وجميع من تفاعل في الردود ..

    الرجاء المشاركة وتفعيل الموضوع من خلال النقاش وليس من خلال إضافة روابط أو وضع وسائل إتصال

    أقترح إضافة عنصر رئيسي للحديث عنه من خلال هذا الموضوع قبل الإنتقال للعناصر الأخرى في علم الإعتمادية

    جزاكم الله خير

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    أعــــــوذ بالله من نفــــــحة الكبرياء




    http://www.arab-eng.org/vb/uploaded2...1279788629.swf

    "إن العـمل القليل المســتمر خير من العـمل الكثير المـنقطع.."


    حسبنا الله ونعم الوكيل

  9. [19]
    م0 عادل هاشم
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    عضو فعال جداً


    تاريخ التسجيل: Jul 2006
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    Reliability
    The reliability of a product or system conveys the concept of dependability, successful
    operation or performance, and the absence of failure. Unreliability conveys
    the opposite. More precisely, we define reliability and related concepts as follows:
    The reliability of a product (system) is the probability that the item will perform
    its intended function throughout a specified time period when operated in a normal
    (or stated) environment.

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  10. [20]
    م0 عادل هاشم
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    تاريخ التسجيل: Jul 2006
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    Reliability theory deals with the interdisciplinary use of probability, statistics,
    and stochastic modeling, combined with engineering insights into the design and
    the scientific understanding of the failure mechanisms, to study the various aspects
    of reliability. As such, it encompasses issues such as (i) reliability modeling, (ii) reliability
    analysis and optimization, (iii) reliability engineering, (iv) reliability science,
    (v) reliability technology, and (vi) reliability management.
    Reliability modeling deals with model building to obtain solutions to problems
    in predicting, estimating, and optimizing the survival or performance of an unreliable
    system, the impact of unreliability, and actions to mitigate this impact.
    Reliability analysis can be divided into two broad categories: (i) qualitative and
    (ii) quantitative. The former is intended to verify the various failure modes and
    causes that contribute to the unreliability of a product or system. The latter uses real
    failure data (obtained, for example, from a test program or from field operations) in
    1.2 RELIABILITY, MAINTENANCE, MAINTAINABILITY, AND QUALITY 3
    conjunction with suitable mathematical models to produce quantitative estimates of
    product or system reliability.
    Reliability engineering deals with the design and construction of systems and
    products, taking into account the unreliability of its parts and components. It also
    includes testing and programs to improve reliability. Good engineering results in a
    more reliable end product.
    Reliability science is concerned with the properties of materials and the causes
    for deterioration leading to part and component failures. It also deals with the effect
    of manufacturing processes (e.g., casting, annealing, assembly) on the reliability of
    the part or component produced.
    Reliability management deals with the various management issues in the context
    of managing the design, manufacture, and/or operation and maintenance of reliable
    products and systems. Here the emphasis is on the business viewpoint, because
    unreliability has consequences in cost, time wasted, and, in certain cases, the
    welfare of an individual or even the security of a nation.
    Some of the items on this list involve many other issues, including prediction,
    assessment, optimization, and related topics. These are defined as follows:
    Reliability prediction deals basically with the use of models, past history regarding
    similar products, engineering judgment, and so forth, in an attempt to predict
    the reliability of a product at the design stage. The process may be updated in later
    stages as well, in an effort to predict ultimate reliability.
    Reliability assessment is concerned with the estimation of reliability based on
    actual data, which may be test data, operational data, and so forth. It involves system
    modeling, goodness-of-fit to probability distributions, and related analyses.
    Reliability optimization covers many areas and is concerned with achieving suitable
    trade-offs between different competing objectives such as performance, cost,
    and so on.
    Reliability test design deals with methods of obtaining valid, reliable, and accurate
    data, and doing so in an efficient and effective manner.
    Reliability data analysis deals with estimation of parameters, selection of distributions,
    and many of the aspects discussed above.
    For a further discussion of the various aspects of reliability, see Lloyd and
    Lipow (1962), Ireson and Coombs (1988), and Blischke and Murthy (2000).

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