www.cevt.se
Master Thesis Project at CEVT
Title:
Statistical Road Load Data Assessment
Subject: Road Load Data for Fatigue Analysis in Concept Phase
CEVT
China-Euro Vehicle Technology CEVT is a joint engineering and development center for future B- and Csegment cars, addressing the needs of both Volvo Cars and Geely Auto.
Background
The Chassis & Powertrain CAE group is a part of CEVT and responsible for generation of virtual Road Load Data for
fatigue and strength analysis of chassis and powertrain systems and components. Several driving events are simulated
using multibody dynamics tools to calculate the resulting stresses and fatigue life of chassis and powertrain components
such as link arms, knuckles, dampers, springs, engine mounts. Since the CPU time required to run through all events
is significant, it is highly desirable to find alternative methods for early concept phase studies where quick turnaround
is more important than absolute precision. One such method may be based on statistical analysis of existing vehicle
RLD data to establish correlation between key vehicle chassis parameters and the resulting fatigue loads. If statistical
methods can be used with acceptable predictive capability, target cascading in early vehicle program phases can be
enhanced.
Scope
The objective of this thesis project is to
a.
Investigate if statistical methods are valid based on available data
b.
If considered valid, select and apply method(s) to create RLD assessment tool in e.g. Excel
Thesis overview
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Literature study
Goals/milestone definition
Development
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Documentation: document the results in a thesis report and make a final presentation.
Prerequisites
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Significant interest and understanding of mathematical statistics methods
Basic understanding of vehicle function and concepts such as weight distribution, suspension travel,
bump stops, dampers, tires.
The duration of the thesis work is 20 weeks and the work will be carried out at Chalmers University,
Göteborg in collaboration with CEVT.
Suitable Student Background
Master’s student in Engineering Mathematics and Computational Science. Please apply with CV and cover
letter.
Starting date
January 2016
Number of students
2
CEVT is a joint engineering and development centre for future C-segment cars,
addressing the needs of both Volvo Cars and Geely Auto. CEVT covers vital aspects
of passenger car development – from the joint architecture, to power train and drive
line components, to top hat engineering as well as the vehicles’ exterior design.
The modular strategy will deliver on the premium aspects that Volvo Cars requires,
as well as on Geely Auto’s demands, in order to compete in the automotive market.
Contact persons
Johnny Engström, CEVT
Igor Rychlik, Chalmers
johnny.engstrom@cevt.se
rychlik@chalmers.se
+46 721 843663
+46 707 405575