Volume 42, Issue 3 (May 2014)

    Remaining Life Assessment of Low-Pressure Turbine Rotor Using Monte Carlo Simulation

    (Received 16 January 2013; accepted 25 September 2013)

    Published Online: 2014

    CODEN: JTEOAD

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    Abstract

    This paper presents the development of a fracture-mechanics-based probability analysis that can be used to estimate the remaining life of a low-pressure turbine with an unstable fracture in the rotor disk keyway. The analysis focuses on the stability of crack growth of a semi-elliptical flaw in the rotor disk keyway. The crack stability is judged on the basis of linear elastic fracture mechanics. Then the Monte Carlo technique is introduced to deal with several random variables. Based on the evaluation results, the probability of failure of observed crack indications can be determined. The inspection interval could be justified.


    Author Information:

    Young, Lih-jier
    Professor, Dept. of Applied Statistics, Chung-Hua Univ., Hsin-Chu,

    Yeh, Bo-Han
    Ph.D. Program of Technology Management, Chung-Hua Univ., Hsin-Chu,

    Young, Phansia Rose
    Deputy Engineer, Project Plan Dept., Engineering Service Division, Edge-Core Networks, Hsin-Chu,


    Stock #: JTE20130016

    ISSN: 0090-3973

    DOI: 10.1520/JTE20130016

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    Author
    Title Remaining Life Assessment of Low-Pressure Turbine Rotor Using Monte Carlo Simulation
    Symposium , 0000-00-00
    Committee G01