If you charge for your product, it means customers are buying. Combined traction and energy recovery motor for electric. The fundamental problem in the study of vehicle mobility is the development of traction between the vehicle and the supporting terrain. It offers several benefits over other systems, including quick start and stop, very efficient, pollution free, easy to handle and easy speed control. Most entrepreneurs regularly grapple with one or more of the following challenges. Mechanics of materials edition beer johnston dewolf 11 10 sample problem 11. The mechanics of energy transfer will essentially control the final performance of the surficial machine. Nm, or knm, or nmm strain energy due to elastic resilience proof. Retired, john deere product engineering center, waterloo, iowa robert d. The international railway market is focused on minimizing the carbon footprint by optimising the use of natural resources and energy. The strain energy density u is defined as the strain energy per unit volume.
The calculation of daily load factor and daily load profile as applied to traction power systems is discussed and incorporated into the tables. Electric traction has many advantages as compared to other nonelectrical systems of traction including steam traction. A free powerpoint ppt presentation displayed as a flash slide show on id. Strain energy is as the energy which is stored within a material when work has been done on the material. Developments in traction systems stuart hillmansen university of birmingham sustainable traction drives slide no. Here, is an ebook and lecture notes for you to download. Strain energy strain energy work done or, force x displacement u 22e x volume unit. Energy for electric traction is consumed to overcome train resistance, grade and curve resistance, provide acceleration, losses in the locomotive during conversion of electric energy into mechanical energy and delivering at the point of contact and optimal use of auxiliary power in the locomotive for cooling of different equipment. The solar power train is a step in saving these nonrenewable sources of energy. A book for students, electrical and mechanical engineers, superintendents of motive power and others by edward parris burch, first published in 1911, is a rare manuscript, the original residing in one of the great libraries of the world. Electric traction mcqs answers pdf electrical engineering. Overall energy consumption for railways is typical split into. For example, the pseudiofluid is free to leave the mold wall as pushed out by the advancing liquid. Pdf traction fields, moments, and strain energy that.
May 06, 20 traction mechanics is the study of train motion. System such a diesel electric drive, electric drive etc. Non traction energy consumption uic study june 2012 final version izt and macroplan page 3 of 39 1. Strain energy ppt fatigue material strength of materials. Presentation on economies of traction diesel vs electric ebook download ppt.
Strain energy ppt free download as powerpoint presentation. Traction fields, moments, and strain energy that cells exert on their surroundings. Summary this report contains the main results of the non traction energy consumption study prepared for the uic and its network of energy efficiency experts. It is used in electric trains, tramcars, trolley buses and dieselelectric vehicles etc. Energy principles and finite element methods for pure traction linear elasticity article pdf available in computational methods in applied mathematics 52 january 2011 with 1,769 reads. Develop a diagram of the bending moment distribution. Study on traction energy consumption and related co2 emissions.
Review of characteristics of different types of dc and ac motors used traction and their suitability moduleiv 10 hours rating and heating of electric drives, power loss, heating and cooling of motors, classes and. Department of transportations national university transportation center for. Ppt electric traction system powerpoint presentation free. Review of strain energy methods and introduction to. Reviews of the electric traction motive power and energy supply to date about the guide we have now electric traction motive power and energy supply feedback people are yet to but quit his or her report on the action, you arent read it nevertheless. Professor, biological systems engineering, virginia tech, blacksburg, virginia the primary purpose of agricultural tra ctors, especially those in the middle to high power ranges, is to perform drawbar work. The electric traction system ppt briefly discusses the types, supply system, traction motors, braking system, advantages and disadvantages and recent trends. The mechanics involves conversion of overhead electrical powerdieselsteam power in rail horse power to haul a train encountering acceleration, train, grade, curve resistance and similarly braking. The energy cost of a rail transport system is very big especially for the tractions of trains in its daily operation. Traction drives lots of legacy stuff around railway energy consumption lots of concern about how to save energy some new concepts for future. Continual effort on decreasing the traction energy cost intensities of various rail transport modes has been made by many researchers and practitioners on different aspects for a long time.
Electric traction mcqs answers pdf electrical engineering multiple choice questions answers. This is a summary of what i think is the most important and insightful parts of the book. Research on improving quality of electricity energy in train s traction 103 in traction power supply system, when calculating and defining the capability of shunt capacitor, we should be based on the maximu m average of traction load to choose shunt capacitor. Electric traction 1701 however, the steam locomotive suffers from the following disadvantages. Nov 30, 2015 the electric traction system is the most efficient of all other traction system such as steam and internal combustion ic engine type systems. The seminar report explains the electric traction system which is the most efficient of all other traction systems. Awesco airborne wind energy system modelling, control and. Is it a boundary condiction that theres no stress action on that boundary. Powering the railways in the usa efficient and reliable. In india where whether is mostly sunlight is available whole year, it is very good idea to use solar energy for the purpose of transportation. This chapter presents a general description of the elements that characterize a railway electric transportation systems. Pdf energy principles and finite element methods for. The tables focus on the large cable sizes typically utilized for dc traction power systems, and include a wide variety of duct bank configurations.
The focal point of the book will be the disposition of electric traction units powered by threephase induction motors. Buy utilization of electrical energy and traction book online. By electric traction is meant locomotion in which the driving or tractive force is obtained from electric motors. There are many advantages of electric traction over other forms. Som strength of materials is considered as one of the most difficult subject in civil engineering branch. Developments in traction systems university of birmingham. Other advantages include the lack of exhaust fumes at point of use, less noise and lower maintenance requirements of the traction units. Efficient and reliable solutions for sustainable mobility. To save electricity in electric traction system solar power is used. Here it is assumed that the material remains elastic whilst work is done on it so that all the energy is recoverable and no.
Utilization of electrical enrgy and electric traction. Electric energy generation utilization and conservation ebook download ppt. Which of the following is an advantage of electric traction over other methods of traction. Combined traction and energy recovery motor for electric vehicles. Electric traction will continue to play a dominant role in the railway since it is an environmentally clean technology compared to diesel traction and also its running cost is low. Main topics covered in strength of materials som btech civil engg. Awesco airborne wind energy system modelling, control and optimisation. May 22, 2018 download electric traction systems seminar report with ppt. Lack of control over time, the market, or the company. Gtu electrical power utilization and traction semester exam previous year question paper download pdf.
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