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whole reliability
    Comprehensive usage of basic pile test method and its whole reliability evaluation
    基桩检测方法的综合运用及整体可靠性评价
    Through the results of the reliability-based fuzzy optimum arecompared with the deterministic optimum design results and fuzzy optimumdesign results,we know that the deterministic optimum design and fuzzyoptimum design all can make the value of objective function much lowerthan tbrmer. But the two methods don抰 consider the structuralreliability,which results in the reliability distribute of structure aren抰reasonable and the whole reliability of structure reduce.
    将基于可靠度的结构模糊优化与确定性单目标截面优化及单目标模糊优化结果作比较,可以看出确定性截面优化和单目标模糊优化都能较大幅度降低结构的重量,但由于这两种方法都未对结构的可靠性提出要求,故导致结构可靠性分配不合理,结构整体可靠性降低。
    In addition, through establishing the fault tree of wearing and parting of sucker rod and tubing, I can find all the relevant factors and their combination, calculate structure importance of every factor. We should put emphasis on the basic event that has bigger structure importance, and improving its reliability can improve the whole reliability of water drive pumping well.
    此外,通过建立水驱抽油机井管杆偏磨失效故障树,可以找出全部可能引起管杆偏磨失效的因素及其组合,计算其结构重要度,对于结构重要度大的基本事件,应予以优先重视,提高它的可靠性,就能提高水驱抽油机井的整体可靠性
    Based on test of 20-30% piles, appling reliability to making up synthesized appraise for existing piles, the whole reliability of pile test is increased.
    在检测20%~30%桩的基础上,应用可靠度对现场桩基础做出综合评价,提高了桩基检测的整体可靠性
    The prediction study on the contact resistance of relays is very significant to that on the contact reliability of relays, even to the whole reliability.
    预测继电器触点接触电阻的研究对于预测其接触可靠性,乃至预测其整体可靠性均具有非常重要的意义。
    It introduces normal method of basic pile test,puts forward its comprehensive usage and analyzes its whole reliability by artificial nerve net & Bayeux method,which has certain practical significance & applicative value of project.
    介绍了桩基检测的常规方法 ,对综合运用基桩的检测以及用人工神经网络和贝叶斯方法对基桩整体可靠性进行了分析 ,具有一定的实际意义和工程应用价值。
 

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