2017
DOI: 10.1177/1687814017695046
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Experimental study on monitoring the bolt group looseness in a clamping support structure model

Abstract: In this article, bolt group looseness monitoring in a clamping support structure model, which is under environmental random excitation, is experimentally investigated. The bolt group has 12 bolts, providing an essential clamping force to fix cargo during transportation. Seven kinds of bolt group looseness degree developed gradually are simulated in experiment. From an economic point of view, vibration transducer of accelerometer is used for monitoring. Time series analysis of Auto-Regressive with eXogenous mod… Show more

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Cited by 8 publications
(3 citation statements)
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“…For wind turbine, the resonant frequency was found to be between 0.35 and 2 Hz [36] and consequently a minimum accelerometer sampling frequency of 0.7-4 Hz is necessary for bolt joint detection through the methods outlined in this study. Such sampling rates are 2-3 order of magnitudes lower than those employed for experimental research [16,22]. This could facilitate a bolt loosening detection system, built around low-cost microprocessors which read and process the accelerometer measurements and subsequently store or feed the result, at a similar acquisition rate to the turbine SCADA data for streamlined data agglomeration.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…For wind turbine, the resonant frequency was found to be between 0.35 and 2 Hz [36] and consequently a minimum accelerometer sampling frequency of 0.7-4 Hz is necessary for bolt joint detection through the methods outlined in this study. Such sampling rates are 2-3 order of magnitudes lower than those employed for experimental research [16,22]. This could facilitate a bolt loosening detection system, built around low-cost microprocessors which read and process the accelerometer measurements and subsequently store or feed the result, at a similar acquisition rate to the turbine SCADA data for streamlined data agglomeration.…”
Section: Discussionmentioning
confidence: 99%
“…In relation to monitoring of bolt joint looseness, several methods are common outside the wind industry, particularly in locomotive, subsea pipelines, and pressure vessels. These include direct measurement of bolt torque and preload [13], electrical impedance [14,15], vibration [16][17][18], ultrasonic methods [19][20][21][22] as well as imaging methods [23][24][25][26][27]. Direct measurement of bolt torque and preload is simple and straightforward; however, it is not suitable for online monitoring due to low accuracy and human error [28].…”
Section: Introductionmentioning
confidence: 99%
“…To address the abovementioned problems, many scholars have extensively studied new types of anchor (bolts) cables, [6][7][8][9][10][11][12] and as a result, a wide range of stretchable anchor (bolts) cables such as Conebolt bolts and Roofex bolts with different supporting resistances and deformations have been developed. Most of the bolts achieve large tensile deformation relying on the deformation of bolt materials or the relative sliding between structures.…”
Section: Introductionmentioning
confidence: 99%