This document provides summaries of 15 publications related to railway track design, maintenance, and management. Key topics covered include economizing substructure design for mega bridges, using track monitoring to improve maintenance, analyzing factors that cause rail and weld fractures, and identifying solutions to control ballast degradation and subgrade deformation to ensure modern, high-quality track. The first publication discusses reducing foundation costs for a rail bridge by 20% through mid-construction design changes.
Strain characteristicts in a unique platform integrated with truck chassis un...Dr.Vikas Deulgaonkar
Present work deals with the process of determination of strain in a structural member under intense load for a typical Indian truck. Characteristics of mechanical strain at various locations on the structure are assessed. Strain gauge selection along with process of locating significant positions for strain measurement on the structure is described. Experimental process is employed for strain measurement. From the experimentation carried on the structure, the results reveal that the tri-axial stresses are dominant over bi-axial and uni-axial stresses at critical points on the structure. Contemporary data acquisition systems are utilized to acquire the strain signals. Computer simulation is carried out to have perception of the behavior of the structure under consideration. Static and Dynamic strain measurement is carried out at constant speeds on various tracks. As there are no assumptions involved in measurement like theoretical modeling and analysis, the experimental method provides the actual strain/stress values at the selected locations. Locations have been selected at cross-members where they are supported at the longitudinal members. As the stresses at these locations are not unidirectional, rosettes have been used to acquire strain in three directions. Linear strain gauges used at locations on longitudinal members.
Vibration measurement and spectral analysis of chassis frame mounted structur...Dr.Vikas Deulgaonkar
Chassis mounted structure is a base component for shelters or containers mounted on heavy transport vehicles. When the vehicle is driven in rough terrains or during off-road transportation this structure has a significant role in protecting the sophisticated cargo and intelligent tracking systems placed inside the shelters. During off-road transportation or warhead conditions the vehicle is subjected to large unevenness in load due to road or soil irregularities in rough terrains, which causes vibrations to be induced in the vehicle. As the nature of vibrations induced in vehicle during travel on off-road or cross-country terrains is random and unpredictable, there is a concern to analyse the vibration response of chassis and chassis mounted structures is needed. Present work deals with vibration measurement and spectral analysis of a chassis mounted structure designed for off-road and commercial transport vehicles. The road profile on which the vibration measurement has been carried out includes paved road and cross-country terrain segments. The vibration measurement has been carried at three different vehicle speeds. Signal analysis procedure for the acquired test data is discussed. The chassis mounted structure under concern is intended to hold two shelters or containers. From the vibration measurement at critical locations, g-(RMS) and g-(peak) values for paved and cross-country roads have been found out. Power spectral density values have also been found on chassis and structure for the same transport situations. Major inferences include the evaluation of minimum and maximum g-values (peak & RMS) on chassis and chassis mounted structure. Power spectral density graphs are constructed from which the dominant frequency for both road profiles is found out
Need ornamentation.This was a crude copy.Special Thanks to AUST'ian.BUET ian should make a new way of reporting.Dont mind to found enomous mistake in mine..It was prepared in a very short time
Strain characteristicts in a unique platform integrated with truck chassis un...Dr.Vikas Deulgaonkar
Present work deals with the process of determination of strain in a structural member under intense load for a typical Indian truck. Characteristics of mechanical strain at various locations on the structure are assessed. Strain gauge selection along with process of locating significant positions for strain measurement on the structure is described. Experimental process is employed for strain measurement. From the experimentation carried on the structure, the results reveal that the tri-axial stresses are dominant over bi-axial and uni-axial stresses at critical points on the structure. Contemporary data acquisition systems are utilized to acquire the strain signals. Computer simulation is carried out to have perception of the behavior of the structure under consideration. Static and Dynamic strain measurement is carried out at constant speeds on various tracks. As there are no assumptions involved in measurement like theoretical modeling and analysis, the experimental method provides the actual strain/stress values at the selected locations. Locations have been selected at cross-members where they are supported at the longitudinal members. As the stresses at these locations are not unidirectional, rosettes have been used to acquire strain in three directions. Linear strain gauges used at locations on longitudinal members.
Vibration measurement and spectral analysis of chassis frame mounted structur...Dr.Vikas Deulgaonkar
Chassis mounted structure is a base component for shelters or containers mounted on heavy transport vehicles. When the vehicle is driven in rough terrains or during off-road transportation this structure has a significant role in protecting the sophisticated cargo and intelligent tracking systems placed inside the shelters. During off-road transportation or warhead conditions the vehicle is subjected to large unevenness in load due to road or soil irregularities in rough terrains, which causes vibrations to be induced in the vehicle. As the nature of vibrations induced in vehicle during travel on off-road or cross-country terrains is random and unpredictable, there is a concern to analyse the vibration response of chassis and chassis mounted structures is needed. Present work deals with vibration measurement and spectral analysis of a chassis mounted structure designed for off-road and commercial transport vehicles. The road profile on which the vibration measurement has been carried out includes paved road and cross-country terrain segments. The vibration measurement has been carried at three different vehicle speeds. Signal analysis procedure for the acquired test data is discussed. The chassis mounted structure under concern is intended to hold two shelters or containers. From the vibration measurement at critical locations, g-(RMS) and g-(peak) values for paved and cross-country roads have been found out. Power spectral density values have also been found on chassis and structure for the same transport situations. Major inferences include the evaluation of minimum and maximum g-values (peak & RMS) on chassis and chassis mounted structure. Power spectral density graphs are constructed from which the dominant frequency for both road profiles is found out
Need ornamentation.This was a crude copy.Special Thanks to AUST'ian.BUET ian should make a new way of reporting.Dont mind to found enomous mistake in mine..It was prepared in a very short time
Chassis mounted structures provide a levelled base to the transport vehicles intended for on-road and off-road driving. These structures acts as cushioning elements to sophisticated cargos like intelligent tracking systems placed in shelters’ closed environment. These structures need sufficient strength and rigidity to withstand the load variations arising from tire-road interactions during rough road travel. Such structures need special attention during the design phase itself in order to improve the specified payload carrying capacity with optimized dimensions. Present paper focuses on formulation of a specialized structure mounted on chassis intended to carry shelters. A scaled prototype is manufactured and tested for different grade-load combinations. This is done through experimental strain measurement and analysis of the results. The data is acquired for nine different load magnitudes and is categorised into three sets as low, moderate and high magnitudes. Interrelation between the stress/strain values acquired during each load and gradient state is developed. The structure behaviour is hypothesized through the gradient strain measurement outcomes. Major design concerns include the spacing & orientation of cross-members, load locations on the structure and the road profiles. Cross-country and rough road terrain behavior of the structure is attempted in present work.
8th ISTVS Americas Conference
Presentation by Dr. Thomas D. Gillespie, Professor Emeritus, The University of Michigan; Director of Product Planning, Mechanical Simulation Corporation.
* DOWNLOAD AND PLAY IT IN MICROSOFT POWERPOINT CAUSE IT CONTAINS ANIMATION AND CAN'T WATCH WITHOUT IT *
Stations and Yards of Railway powerpoint presentation in Transport Engineering.
ALIGNMENT OF RAILWAY LINE |ALIGNMENT OF RAILWAY TRACK |RAILWAY ENGINEERINGEduHUBOnline
Video LINK of PPT(Must WATCH for better Experience):-
https://www.youtube.com/watch?v=T1Dts33EMMA
This Presentation/Pdf/video is about the Alignment of railway lines which is a part of railway engineering. Here we are going to discuss about the alignment of the railway track, criteria for it.
Alignment of railway line refers to the direction and position given to the centerline of the railway track on the ground in the horizontal and vertical planes. Horizontal alignment means the direction of the railway track in the plan including the straight path and the curves it follows. Vertical alignment means the direction it follows in a vertical plane including the level track, gradients, and vertical curves. The various factors affecting alignment, and types of track alignments and their suitability in different terrains are discussed in this video.
Different topics discussed are: -
Types of Railway Projects
Proper planning and Alignment of the railway line
Alignment of Railway Line
Horizontal alignment & Vertical alignment
Importance of Good alignment
Railway Line Constructions
The various factors affecting alignment, and types of track alignments
Basic Requirements of an Ideal Alignment
Selection of a Good Alignment
Economic Considerations of railway alignment
This video will be very helpful for all students of civil engineering who are going to study railway engineering, students who are looking to make a career in civil engineering, and for general knowledge about railway also, and also for civil engineering students preparing for govt exams.
#railwayengineering #alignmentofrailwayline
Chassis mounted structures provide a levelled base to the transport vehicles intended for on-road and off-road driving. These structures acts as cushioning elements to sophisticated cargos like intelligent tracking systems placed in shelters’ closed environment. These structures need sufficient strength and rigidity to withstand the load variations arising from tire-road interactions during rough road travel. Such structures need special attention during the design phase itself in order to improve the specified payload carrying capacity with optimized dimensions. Present paper focuses on formulation of a specialized structure mounted on chassis intended to carry shelters. A scaled prototype is manufactured and tested for different grade-load combinations. This is done through experimental strain measurement and analysis of the results. The data is acquired for nine different load magnitudes and is categorised into three sets as low, moderate and high magnitudes. Interrelation between the stress/strain values acquired during each load and gradient state is developed. The structure behaviour is hypothesized through the gradient strain measurement outcomes. Major design concerns include the spacing & orientation of cross-members, load locations on the structure and the road profiles. Cross-country and rough road terrain behavior of the structure is attempted in present work.
8th ISTVS Americas Conference
Presentation by Dr. Thomas D. Gillespie, Professor Emeritus, The University of Michigan; Director of Product Planning, Mechanical Simulation Corporation.
* DOWNLOAD AND PLAY IT IN MICROSOFT POWERPOINT CAUSE IT CONTAINS ANIMATION AND CAN'T WATCH WITHOUT IT *
Stations and Yards of Railway powerpoint presentation in Transport Engineering.
ALIGNMENT OF RAILWAY LINE |ALIGNMENT OF RAILWAY TRACK |RAILWAY ENGINEERINGEduHUBOnline
Video LINK of PPT(Must WATCH for better Experience):-
https://www.youtube.com/watch?v=T1Dts33EMMA
This Presentation/Pdf/video is about the Alignment of railway lines which is a part of railway engineering. Here we are going to discuss about the alignment of the railway track, criteria for it.
Alignment of railway line refers to the direction and position given to the centerline of the railway track on the ground in the horizontal and vertical planes. Horizontal alignment means the direction of the railway track in the plan including the straight path and the curves it follows. Vertical alignment means the direction it follows in a vertical plane including the level track, gradients, and vertical curves. The various factors affecting alignment, and types of track alignments and their suitability in different terrains are discussed in this video.
Different topics discussed are: -
Types of Railway Projects
Proper planning and Alignment of the railway line
Alignment of Railway Line
Horizontal alignment & Vertical alignment
Importance of Good alignment
Railway Line Constructions
The various factors affecting alignment, and types of track alignments
Basic Requirements of an Ideal Alignment
Selection of a Good Alignment
Economic Considerations of railway alignment
This video will be very helpful for all students of civil engineering who are going to study railway engineering, students who are looking to make a career in civil engineering, and for general knowledge about railway also, and also for civil engineering students preparing for govt exams.
#railwayengineering #alignmentofrailwayline
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A Study on Design Optimization of Roller Conveyor Chain Link Plate by Using T...IJSRD
According to the relevance towards the state priorities the economy of Maharashtra state is dominated by agricultural as well as industrial sector. Sugar factories play an important role in economy of Maharashtra state. About 60 percent processes in these factories are based on roller chain conveyors. Apart from that, other industries also use these chains frequently for process atomization. However, failure of these chains is perennial problem in these industries which causes huge losses to these industries along with its dependents and in turn economic growth of the state. Material uncertainty plays an important role on formation of elastic and plastic stresses. Breakage of chain is also affected due to faulty manufacturing such as wall thickness of link, breaking area of links, bending movement of pin, inner width of chain and shape of the link and uncertainty in heat treatment. Roller conveyor chains are the critical component in sugar mills, paper mill, food processing, fertilizer industry, pharmaceutical industry, cement industry, foundry industry, heat treatment units, coal mines etc. From the previous studies, it can be noted that, even though several patents are filed on roller chains and conveyors, most of the patents are based on metallurgical investigation, improvement of efficiency and performance of chain. Hardly few patents are there on improving life of the chain and minimization of its failure. From the chain failure case studies it can be noted that the root cause of failure was faulty material processing, heat treatment and improper material selection.
A Study on Design Optimization of Roller Conveyor Chain Link Plate by Using T...IJSRD
According to the relevance towards the state priorities the economy of Maharashtra state is dominated by agricultural as well as industrial sector. Sugar factories play an important role in economy of Maharashtra state. About 60 percent processes in these factories are based on roller chain conveyors. Apart from that, other industries also use these chains frequently for process atomization. However, failure of these chains is perennial problem in these industries which causes huge losses to these industries along with its dependents and in turn economic growth of the state. Material uncertainty plays an important role on formation of elastic and plastic stresses. Breakage of chain is also affected due to faulty manufacturing such as wall thickness of link, breaking area of links, bending movement of pin, inner width of chain and shape of the link and uncertainty in heat treatment. Roller conveyor chains are the critical component in sugar mills, paper mill, food processing, fertilizer industry, pharmaceutical industry, cement industry, foundry industry, heat treatment units, coal mines etc. From the previous studies, it can be noted that, even though several patents are filed on roller chains and conveyors, most of the patents are based on metallurgical investigation, improvement of efficiency and performance of chain. Hardly few patents are there on improving life of the chain and minimization of its failure. From the chain failure case studies it can be noted that the root cause of failure was faulty material processing, heat treatment and improper material selection.
A Study on Design Optimization of Roller Conveyor Chain Link Plate by Using T...
Publications
1. Summary of Important Publications
1. Economy achieved in Substructures of Mega bridge Projects of East Central Railway; Under the
heading of Innovative Design Concepts in the Proceedings of National Seminar on Innovative Load
Transfer Devices and Foundation; January 2016
Economizing design is a continuing exercise and should continue during the construction period of
bridges as well. We must not sidetrack the changes in ground realities and manage them in real
time. This only can optimize design and restrict cost and time over run. In the instant case, review of
design parameters mid way resulted into conversion of 5 Km long Rail bridge into Rail cum Road
Bridge and more importantly on 20% less foundation and depth.
2. Track Maintenance- Application of theory in Practice; 6th International Conference of Railway
Experts conducted at Yugoslavia; October 1999
This explains theoretical aspects as to how to drive maximum benefit from the track laid on concrete
sleeper with higher UTS rails intended to offer high quality track with superior maintainability
requiring lesser track possession for high speed and heavy duty lines. Technical solutions available to
handle situations like over loading and over speeding are also explained rather depending only on
higher track standards.
3. Familiarization with Conventional Track Calculations for Track Dimensioning and Track Design;
Indian Railways Technical Bulletin; May 1999.
An attempt has been made to familiarize with fundamentals of conventional track calculations. This
would help the readers in appreciating the order of magnitude of stress as well as single most
primary factor providing relief to stress in (a) rail, (b) at sleeper-ballast interface and (c) formation
pressure. This article also explains the changes in behaviour of track with change in type of sleeper
or standard of maintenance so as to dimension the track and decide the track standards.
4. Issues concerning Track Inspection to Rejuvenate Track Maintenance of Modern Track;
Permanent Way Bulletin; July 1997
Systematic planning is necessary to remove the structural deficiencies in track. Rate of deterioration
cannot be controlled only by attending the ballast. Lack of knowledge of quantum of work
component wise and structure wise is the basic reason for the inappropriately planning the track
maintenance works .The result is mounting of arrears of track deficiencies. An attempt has been
made to question the present system of inspection instead of blaming the people for their so called
apathy towards track maintenance.
2. 5. A critical Resume of Manpower Planning for Track Maintenance; Permanent Way Bulletin; June
1998
An attempt has been made to de nova assess the yardstick for maintenance of a modern track laid
on concrete sleeper. The requirement and strength of manpower for maintenance of track has been
worked out.
6. Familiarization with Ultrasonic Flaw Detector; Permanent Way Bulletin; March 1999
This article explains the Principles of USFD testing technique, characteristics of Probe, Types of
probe, uses of probe and Components of the tester and prerequisites for their efficient & reliable
functioning, Calibration & sensitivity checking and necessary repairs arrangement.
7. Re-look on Decision-Making Process to Control Rail & Weld Fractures; Permanent Way Bulletin;
December 1998
Wiping out the overage track by using heavier poundage and higher UTS rails alone cannot provide
relief. In this article, attention of the field engineers is drawn as to how to systematically analyse the
situations obtaining in field by proper record-keeping and thereafter appropriate decision-making
follows for control of rail and weld fractures.
8. Maintenance Precautions on High Speed Routes; Indian Railways Technical Bulletin; August 1995
It is not possible to impose restrictive speed on high speed routes for normal maintenance. This
article identifies precautions to be taken so as to avoid Reduction in lateral and vertical resistance of
track affecting stability of track, In- built twist, Obstruction to running trains, other adverse factors
particularly on renewal sites, etc.
9. Maintenance Problems on Concrete Sleeper Track; Indian Railways Technical Bulletin; August
1995
This article deals with various problems arising out of use of concrete sleepers,
temporary/permanent solution and remedies to avoid these problems. An attempt has also been
made to make out twelve months cycle of maintenance for PRC sleepers.
10. Making Track Monitoring More Purposeful; Permanent Way Bulletin; June 1999
An attempt has been made as to how track monitoring can be used for track management.
3. 11. A case study of removing redundant empty pilot run in Metro Railway to optimize train timings
for enhanced customer satisfaction; Urban Railways; February 2014
This study discusses as to how utilization of empty pilot run on Metro Railway, Kolkata for decades
was converted into opportunity on 21.05.2014 and result obtained through this exercise can now be
extended to new Metro systems coming up. With the safety mechanisms built in any metro system
as discussed in this study can discard empty pilot run from inception itself.
12. Enhancing the capacity and developing capabilities of a cast wheel plant for possible exports;
Institute of Indian Foundrymen; May 2014
Rail Wheel Factory, Bangalore, is running to full capacity and caters to 80% requirements of Indian
Railways for wheels & axles and 100% wheel-sets .In the recent years further incremental capacity
increase has been attempted which has surfaced the bottlenecks. The bottlenecks have been solved
by ingenious methods. The working of a cast wheel plant has been analyzed from the point of view
of capacity constraints and the technical solutions. The roadmap for RWF is crafted as how the
existing plant can export its wheel to the world markets.
13. Analysis of railway wheel casting defects and identification of remedial measures; Institute of
Indian Foundrymen; July 2014
This article brings out as to how a computerized system to track the rejections introduced in
February 2014 to identify causes of rejection led to address the issues in real time to improve the
manufacturing process and thereby improve quality and reduce rejections from 6% to 4% on a
sustained basis in a very very short time. The instant case study is an effort towards scientifically
identifying the avoidable and unavoidable situation leading to rejection of Wheels and finding the
reasons for rejection attributable to avoidable rejections. This study may be relevant to other
organizations, because every organization with a continuous process with time and temperature
limitation works under conflicting requirements. In such plants numerous process parameters are to
be controlled within the limits.
14. What controls Ballast degradation & plastic deformation of subgrade, essentially ensures
Modern Track- What was the 1st stage of Birth of Modern Railway Track? Now what will lead to
2nd stage of Birth of Modern Track?; To be Published, Indian Railways, Technical Bulletin,
The 1st stage of Birth of Modern Railway Track was in 1950 when French Scientists killed two birds
with one stone ie. By evolving the need of elastic fastenings to take care of BOTH THE CAUSES OF
RAPID BALLAST DEGRADATION i.e. high frequency vibrations and hammer blows at the joints. The
article brings out the solutions for the situations when rehabilitation/ improvement of formation as
necessary, to control plastic deformation could not keep pace with the introduction of heavy duty
track because of high speed, higher axle loads and increasing GMT.
4. 15. Management of Change; To be published; Indian Railways, Technical Bulletin
This article brings out the reasoning mathematically to explain the behaviour of track. This article
also brings out how to manage the change for handling a track which has got higher track models.