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Reliability analysis of universal joint of a compliant platform
Author(s) -
ZAHEER M. M.,
ISLAM N.
Publication year - 2010
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.2010.01453.x
Subject(s) - reliability (semiconductor) , structural engineering , parametric statistics , monte carlo method , tower , joint (building) , engineering , first order reliability method , computation , reliability engineering , hinge , computer science , mathematics , algorithm , statistics , power (physics) , physics , quantum mechanics
The paper describes a methodology for computation of fatigue reliability of universal joint in an articulated offshore tower. Failure criteria were formulated using the conventional Palmgren‐Miner rule (S‐N curve approach) and the fracture mechanics (F‐M) principle. The dynamic analysis of double hinged articulated tower under wind and waves is carried out in time domain. The response histories of hinge shear stresses are employed for the reliability analysis. Advanced first‐order reliability method and Monte Carlo simulation method were used to estimate the reliability. Various parametric studies were carried out, which yield important information for the reliability based design. The S‐N curve approach yields a significantly conservative estimate of probability of failure when compared to the F‐M approach.