Research on Structure Security Evaluation and Fault Diagnosis of Gate Crane Jib

Ma, Shaohua; Wu, Xiaopeng; Sun, Y. K.; Zhou, Shaoze

doi:10.1109/case.2009.166

Cited by 2 publications

(1 citation statement)

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“…However, because of harsh working conditions, intensive use and overload, the faults about jib structure hold a large proportion for cranes. Meanwhile, there are many security issues in the jib system, such as the rivet ecclasis, stress concentration, fatigue crack and rusting attenuation [2], which results in the reduction of preplanned functions, or even risks that can cause serious accidents and great financial losses. In order to improve the safety and reliability of cranes, we should take the strength test [3] for cranes, and absorb the lessons from the past for the sake of lowering accident rate.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Jib Strength and Broken Jib Accident of High Pedestal Jib Crane from the Perspective of Mechanics

Zeng

Liu

2012

AMM

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According to an example of the broken jib accident of a high pedestal jib crane (HM2564) in a Shipyard Co., Ltd. in Guangdong province, this paper used a finite element software ANSYS to establish a solid model for the jib frame of the crane, calculated the stresses of jib system under various actual working conditions and checked the strengths. Simultaneously, the reasons of broken jib were quantitatively analyzed from the perspective of mechanics. The results show that the strengths of the jib system meet the requirements of safe use under all kinds of working conditions, but the related hoistman incorrectly operated the facility, cables can’t be winded normally in pulleys, thus resulting in that the tensile force of a cable was directly applied on the main jib by pulley spindle and the failure of the jib frame occurred under heavy compressive force of lifting cables.

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Section: Introductionmentioning

confidence: 99%

Analysis of Jib Strength and Broken Jib Accident of High Pedestal Jib Crane from the Perspective of Mechanics

Zeng

Liu

2012

AMM

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On Reliability Study of a New Generation of Crane Controllers

Liu¹,

Liu

2013

AMM

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A new generation of crane controllers with higher reliability and controllability is designed compared with present home and abroad crane controllers. Its power unit is isolated from the control unit with optical fibers. It has two layers of power isolation. The voltage value of input signals is raised. The interference resisting capability is raised by replacing transistor circuits with PWM firing technology. There are six control points to control brakes. Besides, the control system reliability and performance are enhanced by superseding mere PID control with combination of PID control and stator current close loop. Tests proved the effectiveness.

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Research on Structure Security Evaluation and Fault Diagnosis of Gate Crane Jib

Cited by 2 publications

References 0 publications

Analysis of Jib Strength and Broken Jib Accident of High Pedestal Jib Crane from the Perspective of Mechanics

Analysis of Jib Strength and Broken Jib Accident of High Pedestal Jib Crane from the Perspective of Mechanics

On Reliability Study of a New Generation of Crane Controllers

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