Thesis topic proposal
László Lovas
Validation of vehicle part finite element models


Institute: Budapest University of Technology and Economics
transportation and vehicle engineering
Kálmán Kandó Doctoral School of Transportation and Vehicle Engineering

Thesis supervisor: László Lovas
Location of studies (in Hungarian): Department of Vehicle Elements and Vehicle-Structure Analysis
Abbreviation of location of studies: JSZT

Description of the research topic:

The finite element analysis and the simulations based on it are of primary importance in the vehicle industry. Various models are built and are used during vehicle development, from the level of unique part to the level of a whole assembled vehicle. The model simulation results are accurate enough only if the numerical model behavior suits well the behavior of the real structures. To reach that, it is necessary to know precisely the parameters of the real structures and to implement them in the numerical model. For this reason, the validation thus the identification of real structure parameters is a very important topic. Data issue from measurements is necessary to the fine tuning of such numerical simulation systems. Our department does have the theoretical background and practical expertise for such measurements.

Goal of the research:
Elaboration of a method allowing verification of numerical model’s precision through measurements of real structures. The method must be suitable to identify parameters such as fixations, material properties, excited vibrations, eigen frequencies, damping, etc.

Work to be done:
Survey of the scientific literature: 0,75 year
Learning basic modeling techniques: 1,25 year
Modeling and measurements on chosen real parts: 0,75 year
Algorithm programming, tests in simulation environment
and on real parts: 0,75 year
Writing the thesis: 0,5 year

Expected scientific results:
Validation method for finite element simulations, prototype measurements and optimization tests.

Required language skills: English
Further requirements: 
- good knowledge of 3D CAD systems
- good knowledge of finite element theory
- good knowledge of finite element softwares
- good programming skills (Matlab, LabView)

Number of students who can be accepted: 1

Deadline for application: 2018-07-05

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