Stability Assessment as a Criterion of Stabilization of the Movement Trajectory of Mobile Crane Working Elements

Kacalak, Wojciech; Budniak, Zbigniew; Majewski, Maciej

doi:10.1515/ijame-2018-0004

Cited by 12 publications

(5 citation statements)

References 15 publications

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“…The use of the real crane for the tests was the technical merit of the entire experiment, however, it also caused some difficulties. Apart from the errors of the vision system itself, the obtained results could also depend on mechanical issues such as various deflection of the crane structure and its mounting base while lifting of the boom or rotating from one side to the other [49]- [53]. Thereby, models of reference circles, which are based only on known kinematics of the crane and single photogrammetric measurement for the initial position of the crane tip, may have been determined inaccurate.…”

Section: Discussionmentioning

confidence: 99%

Stereovision Tracking System for Monitoring Loader Crane Tip Position

et al. 2020

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Section: Discussionmentioning

confidence: 99%

Stereovision Tracking System for Monitoring Loader Crane Tip Position

et al. 2020

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“…Determining the behavior of the carried load during its transport provides for the development of more efficient machine control systems. In addition, it is also possible to prevent dangerous collisions that may lead to machine or load damage [1,2].…”

Section: Introductionmentioning

confidence: 99%

Event Visualization and Trajectory Tracking of the Load Carried by Rotary Crane

Cekus

Depta

Kubanek

et al. 2022

Sensors

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Tracking the trajectory of the load carried by the rotary crane is an important problem that allows reducing the possibility of its damage by hitting an obstacle in its working area. On the basis of the trajectory, it is also possible to determine an appropriate control system that would allow for the safe transport of the load. This work concerns research on the load motion carried by a rotary crane. For this purpose, the laboratory crane model was designed in Solidworks software, and numerical simulations were made using the Motion module. The developed laboratory model is a scaled equivalent of the real Liebherr LTM 1020 object. The crane control included two movements: changing the inclination angle of the crane’s boom and rotation of the jib with the platform. On the basis of the developed model, a test stand was built, which allowed for the verification of numerical results. Event visualization and trajectory tracking were made using a dynamic vision sensor (DVS) and the Tracker program. Based on the obtained experimental results, the developed numerical model was verified. The proposed trajectory tracking method can be used to develop a control system to prevent collisions during the crane’s duty cycle.

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“…Kacalak, Budniak, and Majewski [ 30 , 31 ] proposed a stability assessment method of the mobile crane handling system with the use of a mathematical model and a model built in the integrated CAD/CAE environment. The article [ 32 ] described a computer-aided analysis using computational intelligence methods for the analysis and simulation research of a crane system during sequential movements.…”

Section: Introductionmentioning

confidence: 99%

Modelling and Analysis of the Positioning Accuracy in the Loading Systems of Mobile Cranes

2022

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In this work, the authors analyse the influence of the order and range of sequential movements of a crane’s working members on the accuracy of the final cargo positioning. The analysis was conducted on the basis of a specially developed method in which the authors proposed the introduction of a geometrical indicator of positioning the load in the intermediate positions (after completing each movement sequence) and in the target position, depending on the adopted control strategy and the accuracy of kinematic input of the working mechanisms (powered mechanisms). A mathematical model was presented to enable the accuracy of unidirectional positioning of the crane’s working members when conducting sequential movements controlled through the rotation of the crane column, inner and outer boom, and retractable stages of the six-section telescopic boom. Sample results of the numerical simulations showing the influence of the assumed kinematic inputs of the crane members on the accuracy of unidirectional angular and linear positioning and, consequently, on the accuracy of the final positioning of the transported cargo, were presented. Moreover, an indicator of the cargo positioning accuracy dependent on the location of an operator or a video camera and the trajectory of the cargo was developed, allowing the formulation of application conclusions.

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Stability Assessment as a Criterion of Stabilization of the Movement Trajectory of Mobile Crane Working Elements

Cited by 12 publications

References 15 publications

Stereovision Tracking System for Monitoring Loader Crane Tip Position

Stereovision Tracking System for Monitoring Loader Crane Tip Position

Event Visualization and Trajectory Tracking of the Load Carried by Rotary Crane

Modelling and Analysis of the Positioning Accuracy in the Loading Systems of Mobile Cranes

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