ARDC Research Link Australia

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Orcid icon. 0000-0002-4474-9801

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Research Topics

In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.

ANZSRC Field of Research (FoR)

ANZSRC Socio-Economic Objective (SEO)

Publications

Publication

Directional control–response compatibility of joystick steered shuttle cars

Publisher: Informa UK Limited

Date: 08-2012

DOI: 10.1080/00140139.2012.700328

Abstract: Shuttle cars are an unusual class of vehicle operated in underground coal mines, sometimes in close proximity to pedestrians and steering errors may have very serious consequences. A directional control-response incompatibility has previously been described in shuttle cars which are controlled using a steering wheel oriented perpendicular to the direction of travel. Some other shuttle car operators are seated perpendicular to the direction of travel and steer the car via a seat mounted joystick. A virtual simulation was utilised to determine whether the steering arrangement in these vehicles maintains directional control-response compatibility. Twenty-four participants were randomly assigned to either a condition corresponding to this design (consistent direction), or a condition in which the directional steering response was reversed while driving in-bye (visual field compatible). Significantly less accurate steering performance was exhibited by the consistent direction group during the in-bye trials only. Shuttle cars which provide the joystick steering mechanism described here require operators to accommodate alternating compatible and incompatible directional control-response relationships with each change of car direction. A virtual simulation of an underground coal shuttle car demonstrates that the design incorporates a directional control-response incompatibility when driving the vehicle in one direction. This design increases the probability of operator error, with potential adverse safety and productivity consequences.

Publication

Spontaneous transitions in the coordination of a whole body task

Publisher: Elsevier BV

Date: 11-2001

DOI: 10.1016/S0167-9457(01)00067-7

Abstract: This paper describes an ex le of spontaneous transitions between qualitatively different coordination patterns during a cyclic lifting and lowering task. Eleven participants performed 12 trials of repetitive lifting and lowering in a r protocol in which the height of the lower shelf was raised or lowered 1 cm per cycle between 10 and 50 cm. Two distinct patterns of coordination were evident: a squat technique in which moderate range of hip, knee and ankle movement was utilised and ankle plantar-flexion occurred simultaneously with knee and hip extension and a stoop technique in which the range of knee movement was reduced and knee and hip extension was accompanied by simultaneous ankle dorsi-flexion. Abrupt transitions from stoop to squat techniques were observed during descending trials, and from squat to stoop during ascending trials. Indications of hysteresis was observed in that transitions were more frequently observed during descending trials, and the average shelf height at the transition was 5 cm higher during ascending trials. The transitions may be a consequence of a trade-off between the biomechanical advantages of each technique and the influence of the lift height on this trade-off.

Related Organisations

No related organisations have been discovered for Robin Burgess-Limerick.

Related Funding Activities

Grant

Linkage Projects - Grant ID: LP180100377

Start Date: 08-2020

End Date: 08-2024

Amount: $420,000.00

Funder: Australian Research Council

View Funded Activity

Grant

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE220100025

Start Date: 11-2022

End Date: 06-2024

Amount: $548,940.00

Funder: Australian Research Council

View Funded Activity

Robin Burgess-Limerick

Researcher

Research Topics

Top 5 Research Topics

ANZSRC Field of Research (FoR)

ANZSRC Socio-Economic Objective (SEO)

Publications

Directional control–response compatibility of joystick steered shuttle cars

Spontaneous transitions in the coordination of a whole body task

Related Organisations

Related Funding Activities

Linkage Projects - Grant ID: LP180100377

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE220100025

Robin Burgess-Limerick

Researcher

Research Topics

Top 5 Research Topics

ANZSRC Field of Research (FoR)

ANZSRC Socio-Economic Objective (SEO)

Related Links

Publications

Directional control–response compatibility of joystick steered shuttle cars

Spontaneous transitions in the coordination of a whole body task

Related Organisations

Related Funding Activities

Linkage Projects - Grant ID: LP180100377

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE220100025

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