Risk assessment of remanufacturing arm structure for crane based on potential failure mode

Dong, Qing; Xu, Gening; Ren, Huili

doi:10.1007/s12206-015-1136-4

Cited by 7 publications

(3 citation statements)

References 12 publications

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“…Through collecting and analyzing limited performance (fault/failure forms) data for jib structure of truck crane in service, structure characteristic parameters, and performance parameters are traced including mechanics, notch, and welding performance under typical working conditions. The database corresponding failure modes is established, covering basic information database, and structure failure information.…”

Section: Stress Spectrum Acquisition Methods Of Fatigue Critical Pointsmentioning

confidence: 99%

Fatigue residual life estimation of jib structure based on improved v‐SVR algorithm obtaining equivalent load spectrum

Dong

2020

Fatigue Fract Eng Mat Struct

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Fatigue tests of truck crane jib structure have great difficulty, long testing cycle, and high cost. Therefore, with the portfolio strategy for "collection, prediction, measurement and simulation" being introduced, an improved support vector regression (v-SVR) algorithm is proposed to predict the equivalent load spectrum based on the small measured load spectrum and the fatigue residual life evaluation model is built. First, the v-SVR algorithm corrected in kernel function, decision function, and parameter optimization is utilized to acquire the equivalent load spectrum. Second, the distribution of critical points is determined by the case-based reasoning technique. The simulation model of first main stress-time histories for critical points is established, and the twodimensional stress spectrum is obtained by the rain-flow counting method. Finally, the fatigue residual life of jib structure is estimated by the Forman formula. Taking ZLJ5551JQZ110V truck crane jib structure as an example, the effectiveness of the above method is validated.KEYWORDS equivalent load spectrum, fatigue residual life, improved v-SVR algorithm, jib structure

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Section: Stress Spectrum Acquisition Methods Of Fatigue Critical Pointsmentioning

confidence: 99%

Fatigue residual life estimation of jib structure based on improved v‐SVR algorithm obtaining equivalent load spectrum

Dong

2020

Fatigue Fract Eng Mat Struct

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“…In [7], according to the load spectrum obtained during the operation of the crane, the finite‐element model was established and the numerical analysis was carried out to study the fatigue life of the crane rail beam. Dong et al proposed to obtain the load spectrum of the mobile crane based on mathematical statistics technology and artificial intelligence prediction technology, establish the first principal stress‐time history at the dangerous point of the boom structure, and evaluate the residual fatigue life of the boom structure in [8, 9]. Ávila et al obtained the crane girder fatigue life using SN and linear elastic fracture mechanics (LEFM) methods in [10].…”

Section: Introductionmentioning

confidence: 99%

Analysis on fatigue life of overhead travelling crane girder under impact load for sustainable transport system

Yang

Zheng-yan

et al. 2020

IET Intelligent Trans Sys

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As the main bearing structure of the crane, the girder structure determines its service life. While the girder structure meets the strength, stiffness, and stability, its fatigue life should be paid more attention. A strong impact will be caused by the overhead travelling crane running through the uneven track joint. Based on SolidWorks and automated dynamic analysis of mechanical systems, the virtual prototype of 480 t overhead travelling crane operation is established in this study. The operation simulation of various track height differences is carried out. Compared with the theoretical calculation of GB and ISO, the virtual prototype is verified. Through the strain test and finite‐element calculation of stress of girder under the two working conditions including the main car with a load of 433 t running to the mid‐span and span end of the girder, the stress concentration in the transition rounded corner of the girder is found. On the basis of the simulation load spectrum and finite‐element static stress analysis, combined with the S–N curve of material, the fatigue damage and life prediction model of the 480 t overhead travelling crane girder is established. The minimum life of the dangerous part is obtained, providing a basis for the design and maintenance.

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“…Today mobile crane automation is a required prerequisite for improving the crane productivity, safety, reliability, and energy efficiency [1][2][3][4][5][6]. The primary lifting and handling automated control objectives are workflow optimization, precise load positioning, reducing load oscillations while the crane stability conditions are met [7][8][9][10][11][12]. To achieve these objectives, an integrated safety system shall be in place.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive mobile crane control and safety system

Redrkin¹,

Sorokin²,

Trushin³

et al. 2018

Proceedings of the International Conference "Actual Issues of Mechanical Engineering" (AIME 2018)

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The study deals with the integration of stability control systems for mobile cranes and hydraulic drives control systems when lifting operations include load-lifting path and crane position adjustments. The system's general flowchart and algorithm are presented. Crane tip-over stability margin estimation methods and their possible implementations are proposed: by center of mass position monitoring and measuring the velocity of pressure change in the outriggers hydraulic cylinders.

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Risk assessment of remanufacturing arm structure for crane based on potential failure mode

Cited by 7 publications

References 12 publications

Fatigue residual life estimation of jib structure based on improved v‐SVR algorithm obtaining equivalent load spectrum

Fatigue residual life estimation of jib structure based on improved v‐SVR algorithm obtaining equivalent load spectrum

Analysis on fatigue life of overhead travelling crane girder under impact load for sustainable transport system

Comprehensive mobile crane control and safety system

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