About: Mobile crane is a research topic. Over the lifetime, 756 publications have been published within this topic receiving 4735 citations. The topic is also known as: crane truck.
TL;DR: In this paper, the authors developed a framework for real-time pro-active safety assistance for mobile crane lifting operations based on the critical motions of crane parts captured by a sensor system, where the risk of colliding the crane parts and lifted load into nearby obstructions is analyzed and warnings are provided to the operator through a graphical user interface.
TL;DR: In this article, a newly developed optimization algorithm (referred to in this paper as Algorithm-2) for selecting and locating mobile cranes on construction sites based on their minimum boom length and/or minimum radius, accordingly higher lifting capacities.
Abstract: Mobile crane manufacturers provide operators and practitioners with tabulated lift-capacity charts. These charts are structured based on predetermined crane configurations, which consist of boom/jib length, lifting radius, lifting height, main boom angles to ground, and jib angle to ground or its offset to its main boom centerline. Practitioners, however, are often required to lift on a partially extended hydraulic section and/or lifting radius other than those listed in the manufacturers’ lift-capacity charts. This paper presents a newly developed optimization algorithm (referred to in this paper as Algorithm-2) for selecting and locating mobile cranes on construction sites based on their minimum boom length and/or minimum radius, accordingly higher lifting capacities. Algorithm-2 includes an optimization procedure that avoids lifting capacity violations. In addition to the practical use of Algorithm 2, the mathematical representations of the crane’s geometry are also useful for research in the automatio...
TL;DR: In this article, an anti-sway and tracking control for harbor mobile cranes is presented, where the control objective is the sway-free transportation of the crane's load taking the commands of the operator into account.
TL;DR: In this article, an interference detection technique is used to generate the configuration space and two levels of heuristic search are performed within the C-space to identify lift paths that satisfy the planning requirements.
Abstract: Planning the lift path for a mobile crane involves the generation and selection of a suitable lift path through three-dimensional space while considering the degrees of freedom of the crane, its lifting capacity and potential site obstacles. This paper presents work done toward applying configuration space (C-space) and search concepts to develop a tool to identify lift paths that satisfies the planning requirements. An interference detection technique is used to generate the C-space and two levels of heuristic search are performed within the C-space. The first search is a heuristic depth search to determine the obstacle-free lift paths. The second search performs a more detailed optimization of the path within a constrained search space. The tool developed here can be used within the AutoCAD environment and is based on program modules developed using AutoLisp and external programs. Test findings indicate that the approach is capable of generating good paths in complex situations within reasonable time. Directions for further research are indicated.
TL;DR: In this article, the authors present an approach for generating workspaces that encapsulate spaces occupied by mobile cranes moving during an operation, and assess the effectiveness of the approach in identifying spatial conflicts between mobile crane and building components.