3D active dynamic actuation model for offshore cranes

Abstract

The handling of offshore payloads is a critical operation that presents numerous challenges, in particular related to the required precision in controlling their oscillations in a safe and accurate manner. The uncontrolled payload oscillations induced by the rolling movement of the vessel have been historically mitigated by the experience of on‐deck operators by means of taglines. The availability of experienced personnel is not always present, and a manual control operation still presents inconsistent performances and a high risk for the safety of men and machines. This study presents a novel approach to an antisway control conceived to mitigate such problems and possibly to automate some of the operations concerning the payload sway control that are currently done manually. In particular, a system consisting of a translating trolley actuated through a proportional–integral–derivative controller is taken into consideration to mitigate the oscillations induced by the vessel's rolling and pitching motion onto a three‐dimensional 8 degrees of freedom with double‐pendulum model representing the hanging payload. The study is completed through an analysis aimed to characterize the bandwidth and frequency response of the controlled closed‐loop system and highlight all the potential areas of interest for which further characterization is needed.

A blessing in peer review scientific publishing

“…I have always wanted to approach CACAIE with a scientific paper and this seemed the perfect occasion to present a novel work in a relatively new (for me) subject. Luckily at the time I was working in a research project on a novel implementation for reducing vibrations in offshore cranes, (Fantuzzi et al, 2021) and since the results were promising, together with the other co-authors, we decided to submit our work to CACAIE. In addition, the aim of the research was not only within the scope of the Special Issue but also positively fit all the requirements to be considered for publication in CACAIE.…”

Design and performance evaluation of steel beam members with plate‐type locally resonant metamaterials for vibration control

“…Consequently, various vibration control techniques have been investigated and applied in civil engineering to reduce the dynamic responses of steel structures. These include stiffening the steel frame (Zhou et al., 2015), adding mass (Kala et al., 2013), and implementing passive control (Andersson et al., 2015), such as viscous (J. Chen et al., 2017) or tuned mass dampers (TMD; Gutierrez Soto & Adeli, 2013, 2014), semi‐active control (Gutierrez Soto & Adeli, 2019; Kim & Adeli, 2004, 2005a, 2005c; X. Shi et al., 2021), active control (Adeli & Saleh, 1997; Fantuzzi et al., 2022; Fisco & Adeli, 2011a), and hybrid control (Fisco & Adeli, 2011b; Kim & Adeli, 2005b). Each of these techniques has its own advantages and disadvantages.…”

“…Vibration and low-frequency noise problems in steel structures have been reported more frequently than in other structures (Bursi et al, 2014;Demartino et al, 2022;Kitada et al, 2000). Hence, vibration and noise control are regarded as critical issues in studies on the serviceability, stability, and safety of steel structures (Andersson et al, 2015;Mariniello et al, 2021;Fantuzzi et al, 2022;Fisco & Adeli, 2011a), and hybrid control (Fisco & Adeli, 2011b;Kim & Adeli, 2005b). Each of these techniques has its own advantages and disadvantages.…”

Optimal PID and fuzzy logic based position controller design of an overhead crane using the Bees Algorithm

“…Partial feedback linearization control, which uses a swing-suppressing element, has been developed and checked experimentally for anti-swing control of overhead cranes [10]. Anti-sway control using PID controller has been investigated [11], and the development and management of Gantry Crane System using the Robust and State feedback controllers [12]. In addition, the study of the feedback control system investigated by researchers [13,14], and real-time trajectory control of an overhead crane using servo-constraints [15], and the optimal performance control mechanisms by optimizing the control parameters [16].…”