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Study of operation reliability based on diagnosis information for mechanical equipment

He Zhengjia,Cai Gaigai,Shen Zhongjie,Cao Hongrui,Li Bing

Strategic Study of CAE 2013, Volume 15, Issue 1, Pages 9-14

Abstract: information to realize the reliability evaluation under small sample.The reliability degree, an important reliability index, is transformed by using the normalized waveletinformation entropy to assess operation reliability for running equipment.A new operation reliability assessment index called membership reliability degree is defined and an operationreliability assessment model is built based on quantitative damage diagnosis.

Keywords： mechanical equipment operation reliability normalized information entropy membership reliability degree

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Study on the Universality of the Normal Cloud Model

Li Deyi,Liu Changyu

Strategic Study of CAE 2004, Volume 6, Issue 8, Pages 28-34

Abstract: The idea of membership functions is the foundation of the fuzzy sets theory.While the fuzzy theory is widely used, the completely certain membership function which has no any fuzzinessmodels not only broaden the formation conditions of the normal distribution but also make the normal membershipfunction be the expectation of the random membership degree.

Keywords： normal distribution function membership degree normal cloud model granularity universality

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Reliability analysis on civil engineering project based on integrated adaptive simulation annealing and

Xiao-ping BAI,Ya-nan LIU

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4, Pages 462-471 doi: 10.1007/s11709-016-0361-y

Abstract: Dynamic reliability is a very important issue in reliability research.By now, dynamic reliability research mainly concentrates on the reliability assessment; the methods mainlyThe paper aims to research the dynamic reliability optimization.four quality influence factors in the construction engineering, a method based on gray correlation degreeThen the weights are added into the reliability improvement feasible index (RIFI).

Keywords： civil engineering dynamic reliability grey relational degree adaptive simulated annealing algorithm

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Fuzzy Optimum Selection Dynamic Programming Methodology for Multi-objective Optimization of Multi-stage Systems

Xiong Deqi,Yin Peihai

Strategic Study of CAE 2000, Volume 2, Issue 9, Pages 65-69

Abstract:

Based on the concepts of the fuzzy weighted distance and membership degree, the fuzzy optimum selection

Keywords： multi-stage multi-objective optimization fuzzy optimum selection dynamic programming membership degree

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Approximating Characteristics of Fuzzy Systems With Arbitrary Membership Function

Zhang Zhao,Pei Yanling,Zheng Aihong

Strategic Study of CAE 2005, Volume 7, Issue 8, Pages 47-50

Abstract:

While quadrilateral membership function is used as general membership function, Stone-Weierstrasstheorem is utilized to prove that fuzzy systems with arbitrary membership functions are capable of approximating

Keywords： fuzzy system membership function approximation

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Analysis of synergy degree and its influencing factors in hydropower EPC project management

Jiwei ZHU, Hua GAO, Jiangrui WANG

Frontiers of Engineering Management 2021, Volume 8, Issue 3, Pages 402-411 doi: 10.1007/s42524-020-0098-0

Abstract: The mechanism and factors that influence the degree of management synergy are analyzed on the basis ofanalysis is utilized to identify the key factors that affect the synergy degree.Results show that the order degree of each subsystem presents a steady upward trend.Specifically, the order degree of the subsystem at the trial operation stage is low, which is the majorrestriction on the further improvement of the synergy degree of EPC project management.

Keywords： hydropower project EPC mode synergy degree model grey relational analysis

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Current status and prospects of reliability systems engineering in China

Frontiers of Engineering Management 2021, Volume 8, Issue 4, Pages 492-502 doi: 10.1007/s42524-021-0172-2

Abstract: This study provides a systematic overview of the advent and evolution of reliability systems engineering

Keywords： reliability effectiveness model-based systems engineering reliability systems engineering

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Human reliability in maintenance task

Pacaiova HANA,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2, Pages 184-188 doi: 10.1007/s11465-010-0002-4

Abstract: The importance of considering the reliability of maintenance tasks and the method to reach it are also

Keywords： maintenance risk assessment failure reliability prevention

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An overview of the reliability metrics for power grids and telecommunication networks

Frontiers of Engineering Management 2021, Volume 8, Issue 4, Pages 531-544 doi: 10.1007/s42524-021-0167-z

Abstract: In this study, we conduct a comprehensive overview of the development of reliability metrics for powerThe main purpose of this review is to promote and support the formulation of communication network reliabilitymetrics with reference to the development of power grid reliability.We classify the metrics of power grid into the reliability of power distribution and generation/transmissionThen, we exhibit and discuss the difference between the situations of the reliability metrics of the

Keywords： reliability metrics power grids telecommunication networks

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System reliability and system resilience

Frontiers of Engineering Management 2021, Volume 8, Issue 4, Pages 615-619 doi: 10.1007/s42524-021-0176-y

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On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1, Pages 34-40 doi: 10.1007/s11465-014-0290-1

Abstract: presents a theorem showing analytically that the locus of an unknown secondary instant pole in two-degree-of-freedom

Keywords： spherical mechanisms instantaneous poles great circle angular velocity

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Stiffness of a 3-degree of freedom translational parallel kinematic machine

S. SHANKAR GANESH,A.B. KOTESWARA RAO

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3, Pages 233-241 doi: 10.1007/s11465-014-0312-z

Abstract:

In this paper, a typical 3-degree of freedom (3-DOF) translational parallel kinematic machine

Keywords： 3-DOF translational PKM inverse kinematics stiffness modeling translational stiffness

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Special issue: Reliability management of complex system

Frontiers of Engineering Management 2021, Volume 8, Issue 4, Pages 477-479 doi: 10.1007/s42524-021-0175-z

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Reliability design method for steam turbine blades

SHI Jinyuan

Frontiers in Energy 2008, Volume 2, Issue 4, Pages 363-368 doi: 10.1007/s11708-008-0073-7

Abstract: The purport and calculation method for blade reliability are expounded.The fatigue strength and the vibration design reliability of turbine blades are determined with the aidSome blade reliability design calculation formulas for a dynamic stress design method, a safety ratiodesign method for fatigue strength, and a vibration reliability design method for the first and secondThis research may provide some scientific basis for reliability design of steam turbine blades.

Keywords： design reliability force probability purport reliability design

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A reliability growth model for 300?MW pumped-storage power units

Jinyuan SHI , Yu YANG , Zhicheng DENG ,

Frontiers in Energy 2009, Volume 3, Issue 3, Pages 337-340 doi: 10.1007/s11708-009-0032-y

Abstract: A reliability growth model for pumped-storage power units is presented.fitting on checking the model’s parameters are given together with analysis results concerning the reliabilityOn site operation, reliability data show that the reliability growth model conforms to rules of reliabilityAnalysis results of reliability growth indicate that measures taken for improving maintenance and operationby the pumped-storage power companies are effective and that the reliability of the 300MW pumped-storage

Keywords： pump-storage power unit availability reliability growth reliability prediction