Success factors for digital mock-ups (DMU) in complex aerospace product development [Elektronische Ressource] / Walter Richard Dolezal

Ts0938

Informations

• Publié par: technische_universitat_munchen
• Publié le: 01 janvier 2008
• Nombre de lectures: 19
• Langue: English
• Poids de l'ouvrage: 2 Mo

Extrait

Technische Universität München
Institut für Luft- und Raumfahrt (ILR)
Lehrstuhl für Luftfahrttechnik





Success Factors for Digital Mock-ups (DMU)

in complex Aerospace Product Development





Walter Richard Dolezal




Vollständiger Abdruck der von der Fakultät für Maschinenwesen
der Technischen Universität München zur Erlangung des akademischen Grades eines

Doktor-Ingenieurs

genehmigten Dissertation.





Vorsitzender: Univ.-Prof. Dr.-Ing. Florian Holzapfel

Prüfer der Dissertation: 1. Univ.-Prof. Dr.-Ing. Horst Baier

2. Hon.-Prof. Dr.-Ing. Dieter Schmitt

3. Univ.-Prof. Kristina Shea, PhD





Die Dissertation wurde am 26.11.2007 bei der Technischen Universität München
eingereicht und durch die Fakultät für Maschinenwesen
am 29.04.2008 angenommen.

IIAcknowledgements


This work is the result of the research I have done over the last couple of years while working
in the Digital Mock-up Integration team of Airbus in Bremen, Germany.
I may regard myself as lucky, because even after busy years of intense and challenging
professional and research work on the mock-up topic the Digital Mock-up in particular is as
exciting as on day one, and the complexity approach has been even more a thrilling and mind-
expanding enterprise.

I especially want to thank my doctoral advisor, Prof. Dr.-Ing. Dieter Schmitt, Institute of
Aeronautical Engineering, for his support and confidence in my work throughout the years. I
am very grateful for both the freedom he granted me exploring the field of mock-ups with a
rather unusual approach and for his rigour turning a work strongly influenced by an industrial
environment into a scientific thesis.

I want to thank Prof. Dr.-Ing. Horst Baier, Institute of Lightweight Structures, for being the
first reviewer and for his advice in choosing the appropriate title of my thesis. Then I thank
Prof. Dr. Kristina Shea, Institute for Product Development, for being the third reviewer and
for her detailed feedback and improvement proposals. Also, I want to thank Prof. Dr.-Ing.
Florian Holzapfel, Institute of Flight System Dynamics, for accepting the chair of the
examination board and for the smooth organizational handling of the dissertation process.

I am grateful to numerous colleagues in Bremen who shared their time providing valuable
insights from different disciplines’ points of view, who supported me with data, background
material – in particular on the Engineering Mock-up campaigns which took place long before
I joined the company – and who gave feedback and advice at different stages of my work. It
deserves particular mentioning that my superiors during that period – Ralf Garbade, Thomas
Stockhinger and Marc-Niels Jaeschke – granted me the freedom to arrange my professional
occupation with my research the way I found most convenient.

I am particularly grateful to Dieter Weinhauer, a very experienced and now retired aircraft
development engineer and manager, who supported me from the very beginning when the
thesis began to take shape. I owe special thanks to him for his valuable and detailed feedback
and for long-lasting discussions on the various aspects of my work. He greatly enhanced my
holistic understanding of the Digital Mock-up, on its place in aircraft development and its
potentials.

Last but not least I want to thank my family for their continued – moral – support throughout
these challenging yet rewarding years.

Early on I decided to write this thesis in English. Translations I have made by myself, and
even though having put greatest care in correctly expressing my thoughts, I can’t exclude that
errors had gone undetected. If so, I apologize for that and hope that the text will nevertheless
be readable and understandable.




Stuhr, May 2008 Walter Richard Dolezal
III
IV






















To my parents and grandparents

for their love and support


V
VI
Table of Contents

TABLE OF CONTENTS.................................................................................................................................. VII
ABBREVIATIONS .............................................................................................................................................IX
DEFINITIONS ....................................................................................................................................................XI
CHAPTER 1 INTRODUCTION ....................................................................................................................... 1
1.1 ECONOMIC CHALLENGES, TECHNOLOGICAL ADVANCES AND NEW WAYS OF WORKING......................... 1
1.2 AIM AND SCOPE .................................................................................................................................... 2
1.3 MOTIVATION FOR THIS STUDY .............................................................................................................. 2
1.4 INDUSTRIAL AND SCIENTIFIC APPROACH – RESEARCH METHODOLOGY................................................. 3
1.5 CHAPTER OVERVIEW ............................................................................................................................ 4
CHAPTER 2 THE DIGITAL MOCK-UP ........................................................................................................ 5
2.1 DEFINITION............ 5
2.2 A HOLISTIC VIEW ON THE DIGITAL MOCK-UP....................................................................................... 6
2.3 TECHNICAL DIMENSION OF DMU – OVERALL CONTEXT ..................................................................... 7
2.3.1 From Hardware Mock-up to Digital Mock-up................................................................................ 7
2.3.2 Emergence of Digital Mock-ups...................................................................................................... 9
2.3.3 Virtual Product Development........................................................................................................ 10
2.3.4 Challenges and requirements for DMU operations ...................................................................... 11
2.4 TECHNICAL DIMENSION – THE ELEMENTS OF THE DIGITAL MOCK-UP................................................ 13
2.4.1 Geometry - Basic considerations for the 3D representation of digital objects ............................. 13
2.4.2 Metadata I – the Product Structure............................................................................................... 14
2.4.3 Metadata II – the Attributes .......................................................................................................... 17
2.4.4 Digital Information Objects...... 17
2.4.5 The Configured Digital Mock-up (CDMU)................................................................................... 19
2.5 TECHNICAL DIMENSION – PROCESSES AND ORGANIZATION............................................................... 20
2.5.1 Electronic Data Interchange (EDI)...............................................................................................20
2.5.2 Data and Design Quality............................................................................................................... 20
2.5.3 Check and Review Processes ........................................................................................................ 21
2.5.4 Organizational Adaptations..... 22
2.6 COMMUNICATION DIMENSION – VISUALIZATION AND DISTRIBUTED COMMON REFERENCE.............. 23
2.7 MANAGEMENT DIMENSION – EARLY WARNING AND RISK MANAGEMENT & MANAGEMENT OF
COMPLEXITY ...................................................................................................................................... 24
CHAPTER 3 THE DEVELOPMENT ENVIRONMENT OF COMPLEX PRODUCTS .......................... 26
3.1 CHARACTERISTICS OF COMPLEX PRODUCTS AND THEIR DEVELOPMENTS............................................ 26
3.2 THE PRODUCT IN A HIGHLY DEPENDENT ENVIRONMENT – THE SYSTEMS VIEW ................................... 27
3.3 THE MARKET CHALLENGES ................................................................................................................ 28
3.4 THE MANAGEMENT CHALLENGES....................................................................................................... 29
3.5 THE MEGAPROJECT CHALLENGES ...................................................................................................... 30
CHAPTER 4 COMPLEXITY IN THEORY .................................................................................................. 32
4.1 INTRODUCTION TO COMPLEXITY – WHAT IT IS, WHERE IT COMES FROM.............................................. 32
4.2 THE OBJECTIVE AND SUBJECTIVE SIDES OF COMPLEXITY IN MORE DETAIL.......................................... 34
4.2.1 Structural or objective complexity .............