After successful completion of the course, students are able to...

derive an appropriate numerical model for railway vehicles  

derive the load ssumtions for car body, bogie, equipment attachments, wheelsets

know the basics for the standards applied for load assumptions, strength and validation programs of structural components of railway vehicles

evaluate the results from finite element analyses  

validate the crashworthiness performance of railway vehicles  

specify structural testing (static, fatigue, crash)  

validate numerical models via comparison of numerical results with test results. 

-      Structural requirements for railway vehicles

-      Derivation of load assumptions  

-      Static strength requirements  

-      Fatigue strength assessment  

-      Stability

-      Structural Integrity of the car body:

•       Finite Element Modelling
•       Requirements according to EN 12663-1
•       Evaluation of deformations and stress states
•       Static compression test of car body
•       Validation of model with test results

-      Passive Safety of Railway Vehicles:

•       Requirements and collision scenarios according to EN 15227
•       Modelling
•       Evaluation of criteria: Survival zone, deceleration rate, overriding
•       Dynamic  Test
•       Validation of model

-      Bogie frame:

• -      Loads according to EN 13749
• -      Modelling
• -      Static test according to EN 13749
• -      Ebndurance test
• -      Validation of model with test results
• -      On-track testing
• -      Load collective for planned life of vehicle
• -      Fatigue assessment

-      Wheelset:

•       Load assumptions for the wheelset axle
•       Strength proof for wheelset axle
•       Torsional oscillations – testing and assessment
•       Fracture Mechancis: Crack growth analysis  for wheelset axles  
•       Strength proof for wheel

-      Case Studies

Discussion of standards for load assumptions, strength, passive safety

Group work to derive the finite element modelling of car bodies and bogies

Case studies for the evaluation program of car bodies  

Case studies for the evaluation program of  bogies

Case studies for the evaluation program for passive safety  

Case studies for the evaluation program of wheelsets

Online Course is held blocked!

Date:

29.11.2021, 09:00 - 12.30, 13:30 - 17:30

30.11.2021; 09:00 - 12.30, 13:30 - 17:30

01.12.2021, 09:00 - 12.30, 13:30 - 17:30

Prüfung: 02.12.2021, 09:00 - 11:30

oral examination immediately after the lecture - script may be used to prepare the answer (approximatly 10 minutes preparation time for each question)

alternative. written examination to be defined individually 

The Manuscripts of the lecture parts will be available in TISS

Basiv knowledge in finite element methods and in mechanics