Comparing Compact and Remote Deployments of a Speed-Controlled Cylinder Drive Unit on an Offshore Knuckle Boom Crane

Wei Zhao*, Mohit Bhola

*Kontaktforfatter

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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Abstract

In recent years, the speed-controlled hydraulic cylinder has been gaining popularity
due to its high energy efficiency, plug-and-play installation, and reduced maintenance. In low-power applications, the speed-controlled hydraulic cylinder’s drive unit,
containing electric motors, hydraulic pumps, accumulators, and auxiliary valves, is
mounted on the cylinder, forming a compact and self-contained linear actuator called
compact deployment. However, it can be infeasible for a high-power offshore knuckle
boom crane to use compact deployment when the drive unit is too large. Therefore,
remote deployment, which is to mount the speed-controlled hydraulic cylinder’s drive
unit in the machine room of the offshore knuckle boom crane and use long pipelines to
connect cylinders, is proposed in this paper. A simulation study is conducted to compare the compact and remote deployments on a high-power application in system control performance and energy efficiency. In the simulation study, a 150 tons offshore
knuckle boom crane model is developed based on data from a crane manufacturer.
The drive units of the main and knuckle boom speed-controlled hydraulic cylinders
are modeled according to commercial products. A pipeline model is developed to investigate the long pipe impact in remote deployment. An operational trajectory within
the operating range and speed limits for the 150 tons offshore knuckle boom crane is
developed. Simulation results show that the remote deployment consumes 5 % less
power and has 30.5 % higher load capacity than the compact deployment without significantly compromising the position-tracking performance. Furthermore, in this paper, a speed-controlled hydraulic cylinder used on an 800 tons offshore knuckle boom
crane, one of the highest-power offshore hydraulic machinery, is constructed with
commercial products, demonstrating that the power output of the speed-controlled hydraulic cylinder is high enough for most offshore hydraulic machines.
OriginalsprogEngelsk
TitelPROCEEDINGS : The Eighteenth Scandinavian International Conference on Fluid Power, SICFP’23
Antal sider16
ForlagUniversity of Tampere
Publikationsdato30 jun. 2023
Sider518-533
ISBN (Elektronisk)978-952-03-2911-2
StatusUdgivet - 30 jun. 2023
Begivenhed18th Scandinavian International Conference on Fluid Power, SICFP’23 - Tampere, Finland
Varighed: 30 maj 20231 jul. 2023

Konference

Konference18th Scandinavian International Conference on Fluid Power, SICFP’23
Land/OmrådeFinland
ByTampere
Periode30/05/202301/07/2023

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