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1 PhD student Qeensland University of Technology Start time: before 31 March 2011 Contact: Professor Cheng Yan c2.yan@qut.edu.au Living allowance: $30,000/year Research support: $5,000/year Detailed information and requirement: CRC for Rail Innovation‐ Postgraduate Scholarships R3 Program ‐ Topics for Doctorate Study – Starting 2011 Procedures and conditions: 1. Applications should be forwarded to Colin Cole, R3 – Program Leader, c.cole@cqu.edu.au on, or before, 5th February 2011. (Time may be extended if responses are inadequate). 2. Only candidates that can start study before 31st March 2011 will be considered. 3. Scholarship Stipends are $30,000/year with $5000/year student support to the university. 4. Topics listed have been selected to fill gaps in the CRC program. Additional topics will not be considered. Topics in Table 1 will be treated with higher priority that topics in Table 2. 5. To participate in the call the participating University must have: a. An academic with suitable expertise and time availability to supervise the student b. Office facilities, software, experimental equipment to support the student 6. Participating universities, having satisfied 5(a) and 5(b) can advertise for candidates and work with candidates to prepare documentation. 7. Candidates will be selected by a panel approved by the CRC’s Research Management Committee (RMC). Candidates will be selected on a merit basis. 8. Documentation for overseas candidates must include clear information on immigration status and IELTS English score. The student must be eligible for enrolment and immigration at the time the proposals are considered. 9. The candidate application shall include: A proposal for study, Resume, Academic records, Language and immigration status documents and the relevant university’s scholarship application form. The university shall advise if the student will be eligible to enrol and it is envisaged that enrolments will progress after scholarship decisions are advised. 10. The candidate application shall be accompanied by details of the supervisory team ( Supervisor and Co‐Supervisor) and a brief statement regarding hosting arrangements and supporting research team. Topic Descriptions – Table 1 1. Wagon Stability in response to aggregated effects of wind, curving and track irregularities. The problem of wagon response to aggregated defects remains an unsolved problem. Instead wagon roadworthiness, safe speeds and safe crosswind levels are determined by single criteria tests. Traditionally by making these tests sufficiently stringent sufficient safety margins are achieved in operating conditions. This thesis, while having some focus on wind loadings, which is of interest to industry partners, is expected to explore the whole area of wagon response to aggregated conditions‐ for example different track irregularities, combinations of wind, curving, track irregularity, load imbalance with the view to developing improved methodology for performance assessment and design. 2. Methodology for management of rail standardization processes Australia inherits railways which started in the un‐federated states of Australia. Despite over a decade of deaggregation and many railways operating in several states, progress on interoperability and developing a single set of standards has been slow. A study of engineering management approaches in Australia and overseas is warranted. The candidate should aim to produce a methodology that can be used to properly manage a progress towards standardisation and reduce the number of impasses that frequently develop in standards committees. 3. Alternate concept wagons – optimisations for tomorrows railway It is now well established that heavy haul railway are the profitable flagship of railways in many countries. Longer, heavier trains continue to set new records in profitability and efficiency. Heavy haul trains also occupy a monopoly in the markets they occupy and are a natural optimisation of the tradition railway system. Is there an alternate paradigm to that of heavier larger trains? Many alternate rollingstock concepts have been envisaged in the early days or during times of high energy pricing. As rail is increasingly seen as the answer to low energy land transport needs there is a need to re‐explore alternate concept trains, particularly in the inter‐ modal area, which due to the double handling of loads is often the most difficult area to achieve acceptable rail efficiencies. 4. Train systems energy analysis ‐ The thesis will focus on comprehensive energy analysis of the whole train system with the aim of developing a methodology will allow easy auditing of the train system and enable the rail owner to target the areas of the largest possible energy reductions. The program will have objectives: (a) To develop a practical methodology for developing a detailed map of energy use in a train haulage system. (b) To make recommendations for key design improvements for locomotives and rollingstock. (c) Publish comparative data for various energy options The analysis will consider the whole energy cost starting from diesel or electricity purchase point. 5. Investigate methods of satisfying reliability targets using new approaches to fail safety It is recognized that the emergence of new technology may provide the opportunity to develop more effective and affordable rail level crossing warnings systems, however, demonstrating that such systems are fail‐safe can be very complex and costly, potentially negating any cost benefits. Non‐track circuit‐based concepts using new technology for train detection such as radar, magnetic induction sensors, GPS, and video processing show promise, however designers of many of these concepts have not been able to satisfy failsafe operational requirements. The challenge for suppliers of low‐cost level crossing warning devices is to ensure the safety and reliability of these systems based on new technologies, whilst maintaining a low cost. The PhD thesis will research novel and innovative methods for satisfying reliability targets using new and emerging technologies, innovative architectures and protocols, etc. The research will propose designs that can be used to support new technology for next generation low‐cost level crossing warning devices. 6. Automated evaluation of rail level crossing incidents through video image processing There are numerous near‐miss incidents on rail level crossings each year, however, the reporting of these incidents may be inconsistent with actual events due to issues such as the unwillingness of drivers to report incidents or divulge their own errors for fear of action being taken against them. Accurate incident reporting is important to help identify why accidents do not occur, evidence system‐wide hazards and identify where safety improvements can be made. The PhD thesis will investigate the use of image processing for the automated evaluation of level crossing incidents both from the perspective of the train driver, using video taken from the train cab, and from fixed video cameras at level crossings. The research aims to develop an automated incident reporting system and the algorithms necessary to identify and classify different types of incidents. Topic Descriptions – Table 2 1. Predictive Wheel Maintenance Wheel re‐profiling in some rail operators is done on a condition based system – a reactive/corrective basis. Earlier approaches, still in use in many places, use just time based monitoring and/or re‐profiling. In either case, there is high dependence on inspection and decisions are made on the basis of tolerances set. Wheels out of tolerance are re‐profiled. This re‐profiling strategy has such drawbacks as: Wheel wear rate may not be optimal leading to early discarding of wheels. Cannot include wheel maintenance into scheduled servicing to minimise disruption to rail service. I.e. During a bogie overhaul, etc. Undetected wheel defects could be missed by maintenance staff which could deteriorate further. Undetected wheel defects cause considerable damage to infrastructure such as concrete sleepers. The aim of this research project will be to develop a method to determine the best instances within a wheel’s lifetime to perform the re‐profiling. The benefits hoped to be realized are: Optimal wheel life Better maintenance scheduling Wheel defects identified and corrected earlier. Wheel defects prevented. The research will seek to accurately predict the wear on Rolling Stock wheels and the appropriate time to reprofile them to prevent wheel faults and consequent damage to infrastructure? The relative cost basis of the following three approaches will also be compared: (i) Condition based (existing)‐ costs in delays; (ii) Time Scheduled (existing) ‐costs in over servicing (iii) Predictive Scheduled –costs in over servicing, but less than (ii) 2. Human factors study in Signal Sighting and Signal Recognition Railway signal lights are now utilizing LED light rather than traditional incandescent bulbs. While the adoption of LED type light is expected to be universal, questions exist as to the visibility and recognition of these lights. In particular the light rating data and the visibility of light in various weather and distance conditions is not well understood. The project was suggested by the RISSB – TCSSC . Major research questions exist regarding measurement standards and compare with incandescent lights and human factors issues (perception, cognition etc) 3. Development of a standard approach to accessing and managing combined and cyclic defects Rail track irregularity standards have traditional set limits to prescribed defects. Difficulty arises with defects are combined and appear in wavelengths that match resonance behavior in vehicle suspensions. The study program will concentrate on developing methods of combining defect of different types and combine this with typical variations in vehicle response characteristics to produce information that can be used to develop new defect limits for cyclic defects. 4. Decision Support for Corrosion management of steel railway structures Development of decision support algorithms to managing painting and corrosion control decision for railway rail bridges. Related to this is research into novel corrosion protection systems, or decisions as to when to fit a corrosion protection system. Doing so may reduce the frequency of painting and hence large cost savings. All this could link to the Life Cycle management of Bridges project. |
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