Synchronous Control Theory and First Test of Time-Varying Upper Operation and Chassis Attitude Maintenance for Truck Cranes

Yang, Wentao; Zhang, Fan; Wang, Huiheng; Wu, Jixing; Nie, Zhenqi; Li, Lijun

doi:10.1061/(asce)co.1943-7862.0002423

Cited by 4 publications

(1 citation statement)

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“…Fang et al [ 33 ], with the goal of improving the operators’ situation awareness, proposed a novel framework and practical system architecture for an operator-assistance system by leveraging real-time motion sensing and 3D modelling of dynamic workspaces. Yang et al [ 34 ] proposed a synchronous control theory of the upper operation and the chassis attitude maintenance. The results of their research contributed to improving the safety of the truck crane, the operating efficiency, and reducing the operating burden of the driver.…”

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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Section: Introductionmentioning

confidence: 99%