12 September 2011 Rev. 1

Course programme Rail Vehicle Technology (SD2307), 7.5 credits Academic year 2011/2012, period 2 (October - December 2011)

Aim of the course

The overall course aim is to describe the components and functions of rail vehicles as well as the various demands a rail vehicle must fulfil. The course should give you a good platform for work in the field of railway engineering.

After a completed course you should, among other things, be able to:

• explain how bogies, carbody tilting, traction and brake systems work and can be improved • calculate train performance like acceleration and braking capacity, average speed and energy consumption • determine outer dimensions and interior design for a train at a given operational task

• discuss the trends and future potential for railway traffic

Course main contents

Introduction to rail vehicles. Rail vehicles - technical basis. Running resistance and aero-dynamic phenomena. Running gear and tilting. Vehicle traction: mechanics, motors, transmission and current collection. Vehicle braking: braking systems and control. Car bodies: mechanics, interior design, comfort systems and passenger environment. Internal noise and vibrations. Rail vehicle market and vehicle development.

Previous knowledge

Fundamentals of mechanical and electrical engineering. The KTH courses SA105X/SA108X or SD2221 are recommended.

Teachers

MB = Mats Berg, professor, examiner mabe@kth.se SSt = Sebastian Stichel, professor stichel@kth.se RE = Roger Enblom, PhD renblom@kth.se EA = Evert Andersson, professor everta@kth.se DW = David Wennberg, PhD student davidwen@kth.se

Literature

Powerpoint presentations and chapter texts are successively uploaded on the course web page.

Course assessment Written exam (4.5 credits)

A five-hour written exam. Given at 23 November at 13.00-18.00 in room Q33. The course literature above must not be used during the exam. A maximum of 40 points can be achieved; for pass at least 20 points are required.

If you got the grade Fx you get the possibility of a supplementary written exam. Such an exam will comprise of parts where you obviously need to improve. Usually 5 points can be achieved, while 3 points are needed for passed. Time available is one hour. The supplementary exam must be written within six weeks after the result has been announced. After that period grade Fx will be changed to F (not passed). Project task (3 credits)

Work carried out in groups of 2-3 persons on “Principle design of a fast train for regional traffic”. The task includes three compulsory lectures: - Introduction of the task (22 November at 16.40-17.00 in room E33) - Intermediate presentation (6 December at 13.15-16.00 in room D34) - Final presentation (14 December at 9.15-12.00 in room V12)

A project report is to be submitted by the 21 December 2011. If submitted on time, the report can give you up to 5 bonus points.

Final grade

The possible bonus points are added to the points of the passed written exam, i.e. you must always have at least 20 points (pass) at the written exam; e.g. 17 points on the written exam and 3 bonus points is not sufficient for the mark E. 0.0 - 17.9 points: grade F 18.0 – 19.9 points: grade Fx not passed ------------------------------------------------------------------------------------------------ 20.0 – 24.9 points: grade E passed 25.0 – 29.9 points: grade D 30.0 – 34.9 points: grade C 35.0 – 39.9 points: grade B 40.0 – 45.0 points: grade A Schedule Hour Room Chap. Contents Teacher

Mon 24/10 15-17 D35 12 Introduction, vehicle mass and adhesion MB Tue 25/10 9-12 B22 12 Vehicle tractive forces, gauging MB, RE Wed 26/10 8-10 D35 13 Vehicle rolling resistance SSt

Tue 1/11 8-10 D35 13 Vehicle aerodynamics SSt Wed 2/11 15-17 E53 14 Running gear and bogies SSt Fri 4/11 13-16 V12 14 Bogies, cont.; carbody tilting SSt

Mon 7/11 8-10 D35 15 Traction mechanics MB Wed 9/11 9-12 D35 15 Traction – electric and diesel EA Fri 11/11 15-17 D35 16 Braking MB

Wed 16/11 9-12 V32 17 Carbody (mechanics) DW Thu 17/11 8-10 E53 16 Braking cont. MB Fri 18/11 15-17 D35 18 Carbody (interior design and comfort) EA

Tue 22/11 15-17 E33 19, 20 Internal noise, Vehicle develop., Proj intro MB, SSt Wed 23/11 13-18 Q33 - Written exam -

Tue 6/12 13-16 D34 - Project task: Intermediate presentation MB

Wed 14/12 9-12 V12 - Project task: Final presentation MB

Lecture rooms: B rooms, Brinellvägen 23 D rooms, Lindstedtsvägen 5 E rooms, Lindstedsvägen 3 Q rooms, Osquldas väg 6 V rooms, Teknikringen 72