Estimation of cable tension force using the frequency-based system identification method

Kim, Byeong Hwa; Park, Taehyo

doi:10.1016/j.jsv.2007.03.012

Cited by 243 publications

(120 citation statements)

References 10 publications

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“…Such drawbacks are avoided in pure dynamic procedures [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28], where, in general, the difference between the experimental and the calculated natural frequencies of vibration is minimized in order to identify the unknown parameters.…”

Section: State Of the Art In Axial Load Identification In Tie-rodsmentioning

confidence: 99%

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Vibration Analysis for Monitoring of Ancient Tie-Rods

Collini¹,

Garziera²,

Riabova³

2017

Shock and Vibration

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This paper presents an application of vibration analysis to the monitoring of tie-rods. An algorithm for the axial load estimation based on experimentally measured natural frequencies is introduced and its application to a case study is reported. The proposed model of a tie-rod incorporates elastic bed-type boundary conditions that represent the contact between stonework and the tierod. The weighed differences between experimentally and numerically determined frequencies are minimized with respect to the parameters of the model, the main being the axial load and the stiffness at the tie-rod/wall interface. Thus, the multidimensional optimization problem is solved. Results are analysed in comparison to a model with simple fixed-end boundary conditions. In addition, the analytical formulation of the problem is delivered.

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Section: State Of the Art In Axial Load Identification In Tie-rodsmentioning

confidence: 99%

“…Another fully dynamic procedure has been proposed by Kim and Park [23]. It allows identifying the tension force and flexural and axial stiffness of the cable from measured natural frequencies.…”

Section: State Of the Art In Axial Load Identification In Tie-rodsmentioning

confidence: 99%

Vibration Analysis for Monitoring of Ancient Tie-Rods

Collini¹,

Garziera²,

Riabova³

2017

Shock and Vibration

View full text Add to dashboard Cite

show abstract

“…With some improvements, this methodology has also been applied to more complex cases, involving very long sagged cables, short stiff cables, low tensioned cables, cables anchored on flexible supports and groups of clamped cables. For these cases, specific formulae based on simplified analytical solutions have been used [8][9][10][11], as well as numerical formulations allowing the identification of various cable parameters from the measurement of sets of natural frequencies and from particular assumptions respecting the boundary conditions [12][13][14]. Considering applications in low sagged cables, typical from long span cable-stayed bridges, it is relevant to cite the simplified formulae derived by Mehrabi and Tabatabai [10].…”

Section: Identification Of Cable Forcementioning

confidence: 99%

“…Moreover, given that experimental techniques have immensely improved in recent years, it is presently possible to obtain very accurate estimates of cable frequencies for many vibration modes other than the first two. This allows the simultaneous identification of force and some of the uncertain governing parameters, using optimisation criteria and curve fitting techniques ( [12], [13], [16]. On the other hand, considering also the progress in the numerical modelling of complex structures, the combination of numerical models with experimental testing and identification techniques can provide an extremely powerful tool in the estimation of cable force for applications characterised by significant dispersive behaviour( [14], [16]), as will be subsequently illustrated.…”

Section: Identification Of Cable Forcementioning

confidence: 99%

Dynamic testing of cable structures

Caetano

Cunha

2015

MATEC Web of Conferences

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Abstract. The paper discusses the role of dynamic testing in the study of cable structures. In this context, the identification of cable force based on vibration measurements is discussed. Vibration and damping assessment are then introduced as the focus of dynamic monitoring systems, and particular aspects of the structural behaviour under environmental loads are analysed. Diverse application results are presented to support the discussion centred on cable-stayed bridges, roof structures, a guyed mast and a transmission line.

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“…Convenient and quick measurement of the cable force has great significance to the bridge structure health assessment after suffering from disasters such as an earthquake. [5][6][7][8][9] There are several ways to measure the cable force. Currently, available techniques to estimate the cable force include the static methods that directly measure the cable force by a load cell or a hydraulic jack, and the vibration-frequency methods (VFMs) that indirectly estimate the cable force by measuring the natural frequencies.…”

Section: Introductionmentioning

confidence: 99%

Public-participant quick cable force investigation method using smartphone for bridges in disaster area

Zhao

Ding

et al. 2016

Advances in Mechanical Engineering

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Numerous infrastructures, especially the bridge, require some safe inspection and assessment at the soonest when hit by a disaster like catastrophic earthquake. However, plenty of bridges within disaster area and limited resources for inspections may lead to the traffic delays and hampering the quick post-disaster assessment and rebuilt. In this article, a public-acceptant method, where cable force of bridges can be investigated quickly based on ubiquitous smartphones, was proposed to raise the efficiency of inspection and assessment in post-disaster emergency. First, public-participant post-disaster emergency disposal system was supported by the developed mobile software Orion-CC. Second, the lab's comparison experiment was conducted with the mature wireless monitoring method, which verified the feasibility of the above-mentioned method. Third, the field experiment in totally three bridges in Dalian including Hualu Bridge which used three iPhones demonstrated the feasibility, practicability, high efficiency, and stability of the novel method, and showed its huge potential for the application in bridges' quick health investigation. Besides, utilizing the smartphonebased cable force investigation method as the breakthrough, the data collection network and the framework of publicparticipant post-disaster emergency disposal system were preliminary established.

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Estimation of cable tension force using the frequency-based system identification method

Cited by 243 publications

References 10 publications

Vibration Analysis for Monitoring of Ancient Tie-Rods

Vibration Analysis for Monitoring of Ancient Tie-Rods

Dynamic testing of cable structures

Public-participant quick cable force investigation method using smartphone for bridges in disaster area

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