By Topic

Railway Condition Monitoring, 2006. The Institution of Engineering and Technology International Conference on

Date Nov. 2006

Filter Results

Displaying Results 1 - 25 of 44
  • Covers

    Publication Year: 2006 , Page(s): C1
    Save to Project icon | PDF file iconPDF (550 KB)  
    Freely Available from IEEE
  • The Institution of Engineering and Technology International Conference on Railway Condition Monitoring

    Publication Year: 2006 , Page(s): nil1
    Save to Project icon | PDF file iconPDF (27 KB)  
    Freely Available from IEEE
  • Copyright page

    Publication Year: 2006 , Page(s): nil2 - nil3
    Save to Project icon | PDF file iconPDF (201 KB)  
    Freely Available from IEEE
  • Commentary

    Publication Year: 2006 , Page(s): nil4
    Save to Project icon | PDF file iconPDF (125 KB)  
    Freely Available from IEEE
  • Contents

    Publication Year: 2006 , Page(s): nil5 - nil7
    Save to Project icon | PDF file iconPDF (290 KB)  
    Freely Available from IEEE
  • Programme

    Publication Year: 2006 , Page(s): nil8 - nil11
    Save to Project icon | PDF file iconPDF (405 KB)  
    Freely Available from IEEE
  • Intelligent Infrastructure the Business Challenge

    Publication Year: 2006 , Page(s): 1 - 6
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (3755 KB)  

    This paper explores Network Rail's strategy to employ intelligent infrastructure to enhance overall business performance and how this will help to deliver the railway of the future. In particular, the paper describes the historical approach to condition monitoring; its modern deployment; a future approach based on a continuous understanding of asset condition; and the use of management information to make tactical and strategic decisions View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Condition monitoring drives organizational change

    Publication Year: 2006 , Page(s): 7 - 12
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (3939 KB)  

    Monitoring of railway objects is relatively new. Maintenance organizations have to adapt to the use of monitoring systems. Various examples prove that condition monitoring can: reduce the number of failures and thus improve the availability and; facilitate condition based maintenance. The introduction of point monitoring in three different organizations is described. The adaption of organization to the technology and the adaption of the technology to the organization make improvement of processes and condition monitoring tools possible View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Integrated Railway Infrastructure Condition Monitoring for Optimal Asset Management

    Publication Year: 2006 , Page(s): 13 - 19
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (6881 KB)  

    The paper discusses various condition-monitoring techniques and their optimal utilization for Railway Infrastructure Asset Management Systems (RI-AMS) purposes, as well as main RI AMS sub-systems and activities they are supposed to handle View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Real Time Fault Detection of Railway Vehicles and Tracks

    Publication Year: 2006 , Page(s): 20 - 25
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2764 KB)  

    This paper describes methods for fault detection of railway vehicles and tracks. We examine fault detection of tracks using multi-resolution analysis into on-board measurement data as model-free approach. For fault detection of vehicles, we adapt interacting multiple-model (IMM) algorithm as model-based approach. We carried out simulation studies and field tests with actual vehicle. The results suggest that track and vehicle fault can be effectively detected by proposed method View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Condition Monitoring of Railway Track using In-Service Trains

    Publication Year: 2006 , Page(s): 26 - 31
    Cited by:  Patents (3)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (4323 KB)  

    Track recording vehicle equipment has been miniaturised to such an extent that it can be mounted on an in-service vehicle for monitoring track geometry. An alternative approach is to mount a few robust sensors such as accelerometers and rate gyroscopes onto the bogie and axleboxes of an in-service vehicle. The track geometry information that can be obtained from these sensors is incomplete; in particular gauge is unobtainable and data are affected in the lateral direction by the movement of the wheelsets with respect to the track. Nevertheless, estimates of mean vertical and lateral alignment standard deviations and some track geometry faults can be obtained to inform track maintenance. The motion of the bogie and wheelsets with respect to the track, though adversely affecting track geometry reconstruction, may contain valuable information about the interaction between a particular vehicle and the track (or, at least, between the instrumented bogie and the track) that could itself be monitored. This paper illustrates some features observed in the bogie and axlebox obtained from sensors fitted to a Tyne and Wear Metro vehicle that provide information about vehicle/track interaction but do not explicitly reconstruct track geometry View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Wheel-Rail Profile Estimation

    Publication Year: 2006 , Page(s): 32 - 37
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (3033 KB)  

    The dynamic response of a railway vehicle is dependent upon the interaction between the wheel and rail. Currently these key components are monitored for wear and condition off-line and separately. However, it is the combined nonlinear interaction that really affects the dynamics. This paper presents the initial Rail Research UK (RRUK) sponsored feasibility study into estimating the wheel-rail profiles in real-time under normal running. A Kalman filter approach is used to estimate the relevant system parameters, and it is applied to a simplified wheelset model that includes the nonlinear geometries as a nonlinear conicity function. This approach is successfully applied in a simulation study to recreate the nonlinear conicity function as the wheelset moves laterally over the rail View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Effects of Tilting Trains on the Track Superstructure

    Publication Year: 2006 , Page(s): 38 - 43
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2272 KB)  

    The tilting technology, in comparison with the conventional trains, assures in the curved sections of the track alignment and for the same running speed, a smaller value of noncompensated centrifugal force on the car-body level. As a result, using this technology, the running speeds in curves can be increased while still keeping, on the car-body level, the same value of the non-compensated lateral acceleration. This increase of speeds, which comes up to 30%, whilst not affecting the passenger comfort it does have consequences on the track superstructure since it affects the geometrical positioning of the wheel-sets on the track (the curving ability of bogies) and through them the forces acting on the wheel rail interface. Within the frame of this theoretical paper, the effects of tilting trains on the track superstructure are investigated by means of mathematical models. The estimated quantitatively effects are related to the increase of guidance forces acting on the track, due to the raise of speed. The research covers: a) two different bogie technologies (bogies with conventional axles, bogies with auto-oriented (steering) axles) and; b) two cases of operation (running of tilting trains on new high-speed tracks, running of tilting trains on existing conventional-speed tracks) View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Event Monitoring Comes of Age: `Predict and Prevent' as Well as `Find and Fix'

    Publication Year: 2006 , Page(s): 44 - 47
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2885 KB)  

    Remote monitoring of trackside railway assets has until recently had a deservedly bad reputation. Early systems generated large quantities of unreliable data, and although some simple event monitoring was useful in finding and fixing faults, busy maintainers did not trust the veracity of the data, and in any event did not have the time to collect it nor to analyse it in order to help prevent train delays. However the technology has now advanced to a point where these shortcomings have been overcome, and maintainers are achieving real benefits in terms of train delay minutes and maintenance management. Both remote alarming and event monitoring are in reliable quantity service, assisting maintainers to pre-empt equipment failures on a regular basis, by responding to intelligent alerts on their mobile phones and laptops. The paper differentiates between remote alarming and event monitoring and details how they are successfully being used to prevent train delays. The paper describes the features of the AssetWatch from CDSRail, an example of a 'thin client' early warning system for asset failure View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Remote Monitoring and Graphical Replay of Data on the Central Line

    Publication Year: 2006 , Page(s): 48 - 52
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2053 KB)  

    This paper describes the installation by Metronet Rail of a remote monitoring and data logging system supplied by Transmitton Ltd on the central line. It details what data was available prior to the start of the system's introduction, describes its limitations and the difficulties involved with identifying the cause of "no fault found" failures. It outlines how the remote monitoring system has enabled historical data to be translated and replayed in a graphical format representing the site layout and finally, it describes the benefits that have resulted from implementing the system View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abnormality Detection in Event Data and Condition Counters on Regina Trains

    Publication Year: 2006 , Page(s): 53 - 56
    Cited by:  Patents (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (748 KB)  

    The Regina trains, manufactured by Bombardier Transportation, contain software and hardware to generate as well condition data as event data that can be used to monitor the condition of the trains. In this paper we present the necessary equations for abnormality detection of both event data and condition counters in a general setting. The use of the equations is illustrated on authentic data from Regina trains View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Ultra Miniature Data Loggers for Testing and In-Service Monitoring of Railway Axles and Other Rail Vehicle Components

    Publication Year: 2006 , Page(s): 57 - 60
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2874 KB)  

    Transmission Dynamics of Northern Power Transmission Research Laboratories jointly with Bombardier Transportation have developed a practical and robust method of in-service measurement of railway axle stresses. The ultra miniature data logging system was specified and installed on a routine service train and was in continuous operation on a wheelset for more than one year. The acquired data provided statistically significant information regarding the loading patterns affected by a combination of, service load variations, traction control and adverse weather conditions during the four seasons of a year. The data allows studies of the influence of traction control system and its interactions in conjunction with varying weather conditions as well as providing essential information for the analysis of future axle designs. This paper discusses the design and functionality of an ultra miniature data logger (Microlog) which was successfully used in a variety of health and usage monitoring systems within railway applications View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Acoustic Monitoring of Rail-Head Roughness for Targeted Grinding and Noise Modelling

    Publication Year: 2006 , Page(s): 61 - 62
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1753 KB)  

    Railway rolling noise is a function of the combined roughness at the interface between the wheel and the rail. If wheels are comparatively smooth, the combined roughness is dominated by the rail-head roughness. It is therefore possible to monitor the level of rail-head roughness, and especially short-wavelength corrugation, by measuring the rolling noise with a microphone mounted on the underside of a rail vehicle in the vicinity of the bogie. This paper describes the principle behind this approach, and explains how it may be applied practically to identify roughness "hot-spots" so that grinding may be targeted cost-effectively. It also shows how the data thus acquired may be used to improve the accuracy of rolling noise models, which are of particular relevance at present due to the requirements of the "environmental noise directive" View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Methods and Tools for Predicting Working Modes of Railroad Power-Supply Systems

    Publication Year: 2006 , Page(s): 63 - 66
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (656 KB)  

    This research is dedicated to design and implementation of a computer application for predicting the functioning of a railway power supply system (both on developing stage and in operational state). The process of creating a model for simulation of train movements is described in detail. Two working modes are considered in required hardware reliability estimation: a normal mode (standard conditions) and a breakdown mode (when one of the substations is down). Model analysis and implementation of the results obtained show their trustworthiness. While exploring model behaviour, we could determine minimum time interval between trains, estimate maximum possible current, voltage losses, as well as other parameters View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Intelligent Infrastructure Asset Condition Monitoring

    Publication Year: 2006 , Page(s): 67 - 77
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (7923 KB)  

    This paper seeks to identify what developments and technological advances can be made to the existing railway maintenance regime by the application of intelligent condition monitoring systems. This paper has been specifically tailored to focus on the railway industry, in particular the signalling infrastructure View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Effective Condition Monitoring of Line Side Assets

    Publication Year: 2006 , Page(s): 78 - 83
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2490 KB)  

    In this paper the results of current research into the state-of-the-art in predictive fault detection and diagnosis methods for railway line-side assets is presented. Research to date has mainly focussed on point machines, track circuits and level crossing systems. Within the paper it is demonstrated through the use of data collected from line-side equipment and lab-based test rigs that it is possible to predict failures with sufficient notice to be of use to maintainers and infrastructure owners. It is shown that to acquire useful information from the line-side collected data, a hybrid of quantitative and qualitative techniques must be used that considers both the inherent failure modes of the asset as well its particular operating conditions. It is argued, through the use of examples, that the most appropriate method for robust fault detection is based around generic models that are tuned for a particular instance of an asset. Furthermore, once a fault has been detected, it is necessary to have an a priori knowledge of the symptoms that are observable under fault conditions to reliably diagnose faults View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Development of Measurement Technology on Probe Train for Signaling Equipment

    Publication Year: 2006 , Page(s): 84 - 89
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2277 KB)  

    An automatic train protection system ATS and a track circuit is a fundamental and essential element of railway signaling system. At first, we mention maintenance technology of ATS. For the stable operation of ATS, the management of the quality factor (Q) of the ground beacon is essential and the Q must be kept its value within specified level through maintenance. Our developed new measurement method is based on the current ratio between different two frequency levels of pick-up coil current when the train passes the beacon. And it can provide the correct Q data against the distance-fluctuation. Secondly we develop the onboard measuring method of track circuit. The current of track circuit which is received through a pair of onboard signal receiver, is continuously recorded and analyzed. From the analyzed data signal engineers judge necessity of maintenance of track circuits. These measuring technologies are installed onto the probe train which is one of revenue-earning train with measurement functions. A condition-based monitoring system is realized easily by the result of statistic processing of monitored data which is collected from two or more probe trains View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Concepts and Techniques for Railway Condition Monitoring

    Publication Year: 2006 , Page(s): 90 - 95
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2903 KB)  

    The paper provides a primarily conceptual overview of processing possibilities for condition monitoring systems, and overall is intended to help a potential developer of condition monitoring systems to identify the range of technique that might be appropriate for their application View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Low Adhesion Estimation

    Publication Year: 2006 , Page(s): 96 - 101
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (4288 KB)  

    Low adhesion in wheel-rail contact causes huge problems for scheduling and safety of railway networks. Braking and guidance forces have the same force generation mechanism, via the creep forces at the wheel-rail contact. This paper demonstrates the application of a Kalman filter to estimate the adhesion condition on the rails. The key aspect of this approach is that estimation is carried out on-line, during normal running, i.e. before the brakes have been applied. This will give a full network-wide picture of low adhesion conditions. The results show that the different adhesion levels cause different responses in the railway vehicle, and that a Kalman filter can estimate wheelset forces well, to give an indication of the adhesion level. The work is successfully applied to a Simulink half vehicle model View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Condition Monitoring of the Railway Line and Overhead Equipment Through Onboard Train Measurement - An Italian Experience

    Publication Year: 2006 , Page(s): 102 - 107
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (4499 KB)  

    The paper describes a research project being performed by RFI (Italian track owner) and Politecnico di Milano concerning the diagnostics and condition monitoring of the railway track and overhead equipment. The program aims particularly at increasing the availability of precise information concerning the maintenance status of the line both by introducing new diagnostic techniques to detect geometric defects generally not addressed by existing diagnostic trains, and by extending the availability of information concerning the state of the line by the use of diagnostic units installed on trains from the standard fleet View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.