A5079283142- Railway Engineering and Dynamics
- Metallurgy and Material Forming
- Metal Forming Simulation Techniques
- Mechanical stress and fatigue analysis
- Gear and Bearing Dynamics Analysis
- Adhesion, Friction, and Surface Interactions
- Railway Systems and Energy Efficiency
- Brake Systems and Friction Analysis
- Laser and Thermal Forming Techniques
- Advanced Surface Polishing Techniques
- Chaos control and synchronization
- Vibration and Dynamic Analysis
- Electrical Contact Performance and Analysis
- Metal Alloys Wear and Properties
- Tribology and Wear Analysis
- Lubricants and Their Additives
- Microstructure and Mechanical Properties of Steels
- Neural dynamics and brain function
- Magnetic Bearings and Levitation Dynamics
- Quantum chaos and dynamical systems
- Fatigue and fracture mechanics
- Civil and Geotechnical Engineering Research
- Aerodynamics and Fluid Dynamics Research
- EEG and Brain-Computer Interfaces
- Vibration Control and Rheological Fluids
The University of Queensland
2015-2024
Film Independent
2023
Central Queensland University
2022
Östersunds Hospital
2022
Hospital of the University of Pennsylvania
2018
CRC for Rail Innovation
2015-2016
Queensland Rail
2004-2016
Clinical Research Institute
2013
Duke University
2013
Cranfield University
2011
Several distinct definitions of postoperative death have been used in various quality reporting programs. Some defined mortality as the occurrence after a surgical procedure when patient dies while still hospital, others considered all deaths occurring within predetermined, standardized time interval surgery to be mortality. While data are collected and reported using both these individual definitions, Society Thoracic Surgeons (STS) believes that either approach alone may inadequate....
Abstract In this article, multistage deformation path strategies for single point incremental forming (SPIF) are revisited with the purpose of controlling material flow (improving sheet thickness distribution) and a vertical wall surface cylindrical cups. It is noted that stretching thinning two main modes during SPIF. How to control in an optimal way key successful forming. Multistage shows more advantages than single-stage forming, especially dealing shapes steep walls. study, three basic...
As a critical product quality constraint, surface roughness is regarded as weak point in incremental sheet forming (ISF). It of great importance to identify the impact parameters on and optimize finish at production stage. This paper proposes systematic approach modeling optimizing ISF. The quantitative effects four (step down, feed rate, thickness, tool diameter) are analyzed using response methodology with Box–Behnken design. multi-objective function used evaluate overall terms tool-sheet...
Global supply chains must be decarbonised as part of meeting climate targets set by the United Nations and world leaders. Rail networks are vital infrastructure in passenger freight transport, however, have not received same push for decarbonisation road transport. In this investigation, we used real data from locomotives operating on seven rail corridors to identify optimal battery capacity hydrogen fuel cell (HFC) power hybrid systems. We found that required is dependent both available...
Incremental sheet forming (ISF) is a promising process perfectly suitable for manufacturing customized products with large plastic deformation by using simple moving tool. Up to now, however, the effects of contact conditions at interface are not well understood. The aim this work study effect tool type and size on formability surface integrity during process. Experimental tests were carried out aluminum sheets 7075-O create straight groove four different tools (ϕ 30,ϕ25.4,ϕ20 andϕ10mm). One...
Decarbonisation of heavy haul rail is an essential contributor to a zero-emissions future. However, the transition from diesel battery locomotives not always practical, given unique characteristics each haul. This paper demonstrates limitations state-of-the-art batteries using real-world data multiple operating in Australian freight. An energy model was developed assess route's required and potential regenerated energy. The tractive regenerative energy, mass, cost were determined coupled...
Aged mineral-oil-based, lithium-hydroxystearate-thickened grease was collected from used axle spherical roller bearings, which were for urban commuter trains. Three types of aged categorized based on the total distance that bearing had traveled, as early life (<0.05 million km [M.km]), medium (0.3–0.6 M.km), and heavily (1.82 2.0 M.km). The microstructure degraded 20 bearings characterized in this project using atomic force microscopy (AFM) scanning electron (SEM). Base oil each sample...
In order to validate prediction models of wheel squeal, a rolling contact test rig is used investigate fundamental squeal behaviour. The vibration characteristics the are investigated using analytical and finite element methods, by experimental impact hammer analysis, respectively. Accordingly, lateral resonant frequencies mode shapes determined. A dominant identified based on this as primary peak in sound spectrum an indicator occurrence magnitude squeal. creep curves amplitudes at various...