@inproceedings{6858b83aedd3460589a02f3be050ca98,
title = "Locating Bolt-Loosening Faults in Structures Using a Novel Second-Order Output Spectrum based Method with a Local Tuning Approach",
abstract = "A novel second-order output spectrum (SOOS) based method with a local tuning approach (LTA) is proposed in this paper to locate multiple bolt-loosening faults in complex structures. This new method utilizes a more general multi-degree-of-freedom (MDOF) model with nonlinear components, due to not only bolt-loosening faults but also inherently existing nonlinearity in structures, to derive the SOOS of virtual beam-like structures. Through the LTA, one extra equation is given to derive the local SOOS based damage indicator. In numerical study, the results of comparison with previous methods demonstrate that the fault feature in proposed method provides more local characteristics. Hence, this novel SOOS based method gives more accurate information about the fault location and can be used as an effective and reliable nondestructive evaluation method (NDE) for the detection and location of multiple faults in complex structure with inherent nonlinearity.",
keywords = "Bolt loosening, Damage indicator, Fault location, Nonlinearity",
author = "Quankun Li and Xingjian Jing",
year = "2019",
month = jun,
day = "1",
language = "English",
series = "2019 12th Asian Control Conference, ASCC 2019",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1483--1488",
booktitle = "2019 12th Asian Control Conference, ASCC 2019",
note = "12th Asian Control Conference, ASCC 2019 ; Conference date: 09-06-2019 Through 12-06-2019",
}