Preliminary design of a device to control the orientation of a 250Kg craned load around the vertical axis

Taylor, Simeon (2019) Preliminary design of a device to control the orientation of a 250Kg craned load around the vertical axis. [USQ Project]


Abstract

Single point craned loads all face the same issue irrespective of size. Without ground reactions, the payload can spin uncontrolled. The ability to control the rotational position of a craned load without the need for tethers has the potential to speed up crane and rescue operations as well as improving safety.

Typically, craned loads would be tethered to personnel on the ground to keep them controlled and stop them from spinning. This method often puts workers in harms way. During rescue operations, the inability to control the patient or paramedics position can add unnecessary time to an already time sensitive operation. Verton Australia has developed lifting beams that do not require the load to be tethered to control it. The current available sizes of these beams make them impractical for smaller operations.

Research found gyroscopic control was useful in other applications such as ship stabilisers, balancing of two wheeled vehicles and attitude adjustment of satellites. This design focuses on applying a similar system to control the rotational position of a stretcher payload during helicopter rescue operations.

Major constraints include the moment of inertia of the payload and the physical size and mass of the device being designed. Different flywheel designs are explored. Gyroscope reactions are also compared to find a favourable combination. Mathematical and computer modelling is compared with dynamic simulations done using Autodesk Inventor 2020 and real world reactions of a small-scale prototype.


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Item Type: USQ Project
Item Status: Live Archive
Additional Information: Bachelor of Mechanical Engineering
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 -)
Supervisors: Senadeera, Wijitha
Date Deposited: 16 Aug 2021 04:26
Last Modified: 16 Aug 2021 04:26
URI: http://eprints.usq.edu.au/id/eprint/43122

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