Automatic design algorithms for securing the ground contact stability of mobile cranes

Lee, Dong‐Hoon; Park, Jun Yong; Ho, J S; Kim, Sunkuk

doi:10.1186/s40327-014-0007-x

Cited by 6 publications

(2 citation statements)

References 12 publications

(21 reference statements)

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“…Preventing accidents involving crane overturning offers significant benefits in terms of protecting the lives of operators and reducing the risk of damage. To reduce such cases a dynamic simulator of mobile cranes based on the overturn limit data [21], automatic design algorithms for ground stability of mobile cranes [18,22], a monitoring system that can predict the moment of overturning and send a warning signal [23] have been developed.…”

Section: Analysis Of the Latest Researchmentioning

confidence: 99%

Training simulators for crane operators and drivers

Аkulov¹,

Zhelieznov²,

Zabolotnyi³

et al. 2023

Engineering Today

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The article deals with the use issues of modern information technology for training purposes. In particular, use of simulation modelling to create a learning environment as close as possible to the real working environment. This helps speed up learning, make more practical, learn theoretical issues directly when mastering practical skills, and make the learning process more attractive and interesting for students. Moreover, a virtual working environment can be used for advanced training of employees, to improve their professional skills, master new technologies, train them to work on new and modernized equipment, assess their professional level, restore skills after a long break in the work and pass qualification exams. Information technologies can significantly reduce the cost of material support for training and eliminate dependence on large areas for staff training. To create an interactive virtual learning environment, modern gaming technologies, software modelling or, at least, simulation modelling of physical processes in equipment and the interaction of all components of the working environment, including the actions of the student, are used. It also allows testing employees in extreme working conditions and testing their skills when dealing with nonstandard and emergency situations, without any real danger to the health of students. The proposed solution can be used to train students and trainees, assess professional skills of those already working in the conditions of special training centers and professional retraining colleges.

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Section: Analysis Of the Latest Researchmentioning

confidence: 99%

Training simulators for crane operators and drivers

Аkulov¹,

Zhelieznov²,

Zabolotnyi³

et al. 2023

Engineering Today

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“…An approximate solution is given for cranes with a fifth outrigger placed at the front or rear of the carrier. Lee et al (2014) develop automatic design algorithms for securing the ground contact stability of mobile cranes. They focus on the design of the plates needed to reduce the ground contact pressure.…”

Section: Literature Reviewmentioning

confidence: 99%

Stability analysis of mobile cranes and determination of outriggers loading

Romanello¹

2018

JEDT

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Purpose The purpose of this paper is to develop mathematical tools that are reliable and easily implementable in computer codes, which address the determination of the outriggers reaction of mobile cranes and the monitoring of the actual stability margin available during lift operations. Design/methodology/approach An algorithm that determines the load transmitted to the ground by a mobile crane with four outriggers has been developed. Static theory of rigid body is adopted for the development of the algorithm and the static indeterminancy, due to the presence of more than three outriggers, is eluded through the adoption of specific hypotheses. An analysis of crane stability is also performed, and a method to monitor the actual stability behavior during lift operations is suggested. Findings A case study is proposed to test the algorithm and outcomes show a good matching with the actual outriggers reaction measured during a test conduct in situ. Two indices are introduced as a measure of the stability margin. Research limitations/implications The method developed accounts only for gravitational forces statically applied. Future works should be addressed to extend the model to the effect of wind and inertial forces. Practical implications This paper supplies a reliable tool to assess, in the design phase of a lifting operation, the compliance between bearing capacity of the ground and loads transmitted by outriggers. The method proposed for the analysis of the stability behavior is suitable for the development of an anti-upset device. Originality/value This study contributes to efforts to increase safety during lifting operations with mobile cranes. The method proposed is applicable to cranes with any geometry of the outriggers pattern and is extensible to a number of outriggers greater than four. Furthermore, the evaluation of the measure in real time of the stability margin, is not affected by the data entered by the crane’s operator with the consequence that human factor does not affect this measure.

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