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Keynote Lectures |
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Dr. Alan Taub
|
Executive
Director, Science Labs of GM R&D
|
Biography
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Alan Taub is
Executive Director in charge of GM Research & Development. He
oversees GM’s seven science laboratories, located in
Warren
,
MI
,
Bangalore
,
India
,
Honeoye Falls
,
NY
,
Mainz-Kastel
,
Germany
,
Palo Alto
,
CA
,
Tel Aviv,
Israel
,
and
Shanghai
,
China
. These are focused on
advanced powertrain and energy systems, computer-based design and
analysis systems for vehicle engineering, electronics and
information-based vehicle systems, new materials and fabrication
processes, new more environmentally friendly fuels and lubricants, and
more efficient emission control systems. In addition, he has
responsibility for GM’s advanced technical work activity, which manages
major innovation programs within the company, as well as GM’s global
technology collaboration network, which is managed through science
offices located around the world.
Dr. Taub received
his bachelor’s degree in materials engineering from
Brown
University
and master’s and Ph.D. degrees in applied physics from
Harvard
University
. He spent nearly 15
years in research and development with General Electric, where he
earned 26 patents, authored more than 60 papers, and ultimately managed
the GE materials properties and processes laboratory. He also worked at
Ford Motor Company for eight years, where he was manager of the
materials science department, manager of North American vehicle crash
safety, and manager of vehicle engineering for the
Lincoln
brand. He joined GM R&D
as executive director in 2001.
Dr. Taub was
elected to membership in the National Academy of Engineering in 2006.
He has been an active member of the Materials Research Society and the
Industrial Research Institute and serves on advisory boards of several
institutions, including Harvard University, Brown University,
Massachusetts Institute of Technology,
Northwestern
University
,
and the National Science Foundation. He was a member of the USCAR
Automotive Composites Consortium from 1993 to 1997 and served with the
PNGV Materials Tech Team from 1995 to 1997. Dr. Taub received the
Materials Research Society’s Special Recognition Award in 2004 and
Woody White Service Award in 2002. He was awarded the Brown University
Engineering Alumni Medal in 2002.
Dr. Taub has
presented numerous keynote and plenary lectures, including the Byron
Short Lecture at the University of Texas at Austin in 2008, ASM/TMS
Distinguished Lecture on Materials and Society at the Materials Science
& Technology 2007 Conference, 50th Anniversary Laureate
Lecture at the TMS 2007 Annual Meeting, the 2007 Wulff Lecture at
Massachusetts Institute of Technology, the 2006 Wenk Lecture at Johns
Hopkins School of Engineering, and the 2002 Technology Distinguished
Lecture at the University of Pennsylvania. |
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Abstract
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Prof. David J. Whitehouse
|
School
of
Engineering
, The University of
Warwick
,
England
|
Biography
|
|
Professor Whitehouse
graduated in Physics from
Bristol
University
in 1958 and was
awarded a Ph.D. in Tribology by
Leicester
University
in 1971, then a
D.Sc in Metrology by the
University
of
Warwick
in
1986.
Between 1958 and 1961 he
gained a wide range of experience in industry as a development engineer
in an electrical control company. From 1961 until 1970, he was a research engineer at Taylor
Taylor Hobson in
Leicester
after which
he became Chief Research Engineer a post he held until 1978 when he
left industry for an academic career. He was the first person in the
UK
to move directly from industry to be a full Professor. The chair was in Mechanical
Engineering at the
university
of
Warwick
UK
.
He set up the mechanical
engineering and production engineering divisions in 1980, and at the
same time established the prestigious Centre for Microengineering – the
first of its kind in
Europe
. In 1990, he became Professor of
Engineering Science and Chief Scientist in the
school
of
Engineering
,
and held this position until 2001 when he became Emeritus
Professor. During this time
he was awarded an SERC 5 year Senior Fellowship for his research into
surface metrology.
During his time in industry
and at the
University
of
Warwick
,
Professor Whitehouse has established a reputation as the foremost
researcher in the world in surface metrology. He has written 250+
technical papers, 5 books including the definitive ‘Handbook of Surface
Metrology’ and acquired more than 20 patents. He also started the world’s
first journal on nanotechnology in 1991.
He has been awarded many
honours, medals and prizes in the
UK
and in
Japan
,
Russia
and the
USA
. In 1998 he received a lifetime
achievement award, ‘Champion of Metrology’ from The National Physical
Laboratory in the
UK
.
In 2002 he received a lifetime achievement award from the American
Society of Precision Engineering. The citation reports him as the
‘Father of digital metrology’.
He has been a consultant
for many famous industrial
companies including Rolls Royce, Unilever and Taylor Hobson in the UK
and Kodak, General Electric, Caterpillar Tractor and
3M
in the USA as well as Toshiba in
Japan, UBM in Germany and the Singapore ministry of productivity.
In the past few years he has been Visiting and
Consulting Professor in
Tianjin
University
and Harbin Institute
of Technology in PR China as well as the
University
of
Huddersfield
in the
UK
where he was awarded an Honorary D.Sc. in 2004.His hobbies include
listening to classical music, swimming and weight training. In 2006 he
received an award from the British Amateur Swimming Association for
swimming 5,000 miles (
8,000km
)
over a period of 20 years. In his 70th year he swam
709 km
.
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Abstract
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Prof. Lu, Bingheng
|
Academician,
Chinese
Academy
of Engineering Dean,
School
of
Mechanical Engineering
,
Xi’an
Jiaotong
University
|
Biography
|
|
Prof. Lu Bingheng，dean of Mechanical
Engineering School, Xian Jiaotong University, academician of Chinese
Academy of Engineering, member of the first and second NSFC
consultative committees, convener of Mechanical Engineering Subject Evaluation Group of
the State Council Degree Committee , vice council chairman of CMES and
Machinery Manufacturing Technology Association.
Prof. Lu was in charge of the
establishment of
MOE
RP&M
Engineering
Research
Center
and
National Engineering Research Center of Rapid Manufacturing. Over the
past few years, He has studied advanced manufacturing technology and
carried out research & teaching work in rapid prototyping,
biomanufacturing, micro/nano manufacturing and electronic manufacturing
equipment. As the principal investigator, he led his work team to have
finished more than 20 research projects including State Key Scientific
and Technological Projects during the period of the 9th and
10th Five-year Plans, NSFC projects and “
973”
National Basic
Research Programs. Prof. Lu has also obtained more than 10 invention
patents, developed internationally initiated UV-based RP machine and
optical-mechanical-electronic integrative rapid manufacturing equipment
with international advanced level as well as a series of rapid tooling
techniques, formed a set of rapid product development system supporting
enterprises’ products innovation. With the support of this system, the
anti-clogging irrigation emitters invented by the
Institute
of
Advanced
Manufacturing Technology
, XJTU have found
widespread applications in agricultural water-saving irrigation.
Based on these research
fruits, in the past few years, Prof. Lu bingheng has won a series
awards including: a fist-grade MOE Award for Scientific and
Technological Progress in 1998, a second-grade National Award for
Scientific and Technological Progress in 2000, a first-grade Shaanxi
provincial Science and Technology Award in 2004, and a second-grade
National Award for Technological Invention in 2005.
Prof. Lu has also won the
following honors: the title
of “Outstanding Scholar with Doctorate in China” conferred by the
Degree Committee of the State Council in 1997, a“
5.1”
Labor Medal by
All-China Federation of Labor Unions in 2001, the Outstanding
Contributor to the State Key Scientific Research Projects during the 9th Five-Year plan by the Ministry of Science & Technology, and the
Technology Achievement Award in 2001.
In addition, Prof.
Lu is also the chief compiler of the textbook《 Fundamentals of
Machinery Manufacturing Technology》，a state planned teaching material in the 9th and 19th Five-Year plans, and published more than 400 papers,
among them 100 and more were collected by SCI and EI. |
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Abstract
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Prof.Jay Lee
|
Ohio
Eminent Scholar
and
L.W. Scott Alter
Chair Professor in Advanced Manufacturing,
Univ.
of
Cincinnati
|
Biography
|
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Dr. Jay Lee is
Ohio Eminent scholar and L.W. Scott Alter Chair Professor in Advanced
Manufacturing at the
University
of
Cincinnati
. He
is also the founding director of National Science Foundation (NSF) Industry/University
Cooperative Research Centers (I/UCRCs) on Intelligent Maintenance
Systems (IMS) which is supported by over 40 global companies. He is
also a Cheung Kong Scholar and serves as a Co-Director for
Industrial Innovation Center (IIC) at
Shanghai
Jiaotong
University
in
China
.
In addition, he is a honorary professor at City Univ. of Hong Kong and
serves as visiting professor at
Hong Kong
Polytechnic
University
,
Cranfield Univ. of UK, Lulea Univ. of Sweden, and Harbin Institute of
Technology.
Previously, he held a
position as Wisconsin Distinguished and Rockwell Automation Professor
at Univ. of Wisconsin-Milwaukee, Director for Product Development and
Manufacturing Department at United Technologies Research Center (UTRC),
E. Hartford, CT, and Program Director for a number of programs at NSF,
including the Industrial/University Cooperative Research Centers
(I/UCRCs), the Engineering Research Centers (ERCs), and Materials
Processing and Mfg. Program. .
His current
research focuses on intelligent maintenance systems, embedded
prognostics and E-Manufacturing systems, and product service
innovation. He is a frequently invited speaker and has delivered over
120 invited keynote and plenary speeches at major international
conferences. In addition, he serves as an advisor for a number of
organizations including Industrial Technology Research Institute (ITRI)
of
Taiwan
,
Japan
Productivity
Center
, and
Academy
of
Machinery
Science
and Technology of China, etc. He
is fellow of ASME, SME, and International Society of Engineering Asset
Management (ISEAM).
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Abstract
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Dr.
Shaochen Chen
|
Program Director, NanoManufacturing Program
National Science
Foundation
,
USA
|
Biography
|
|
Dr. Chen is the Program
Director of Nanomanufacturing at the US National Science Foundation. He
is on leave from the
University
of
Texas
at
Austin
where he is a Henderson
Centennial Endowed Associate Professor in the Mechanical Engineering
Department. Dr. Chen received a Ph.D. in Mechanical Engineering from
the
University
of
California
at
Berkeley
in 1999 and B.E. in Thermal Engineering from
Tsinghua
University
in 1989.
His current research interest
includes nanophotonics, nanomanufacturing, biomaterials and
nanomedicine, and energy nanotechnology. Dr. Chen received a CAREER
Award from the National Science Foundation in 2001, an Outstanding
Young Manufacturing Engineer Award from the Society of Manufacturing
Engineers in 2002, and a Young Investigator Award from the Office of Naval
Research in 2004. He received AIAA Best Paper award in 2006. He is a
committee member of the ASME Nanotechnology Institute and IEEE
Nanotechnology Council.
Dr. Chen is an Associate
Editor of ASME Journal of
Manufacturing Science and Engineering and Journal of Biomedical Nanotechnology. He is an editor of a
book – “Nanomanufacturing”
(American Scientific Publishers, 2008) and serves on the Editorial
Board of Nanomedicine and The Open Materials Science Journal.
He was a Guest Editor in 2003 for IEEE
Transactions on Advanced Packaging: Special Issue on NEMS/MEMS
Packaging. Dr. Chen is a Fellow of the American Society of
Mechanical Engineers (ASME).
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Dr. Ji Oh Song
|
Executive Vice President
(Senior Advisor), Mechatronics & Manufacturing Technology Center,
Samsung Electronics Co., Ltd. |
Biography
|
|
Dr. Ji Oh Song is executive
vice president and senior advisor at Samsung Electronics. Recently, he began
serving as the head of WorldSkills Samsung, an initiative to motivate
and encourage young people to learn skills. He was the general manager
of
Mechatronics &
Manufacturing
Technology
Center
, Samsung
Electronics from 2001 to January 2007. In this capacity he was
responsible for the research and development of advanced manufacturing
technology, including factory automation, innovative equipment, and
manufacturing software for Samsung Electronics.
Prior to joining Samsung
Electronics, he was executive vice president & chief research
officer of Samsung Advanced Institute of Technology where he had
oversight responsibilities for corporate technology strategy. He joined
Samsung in 1996 as the head of the technical center of Samsung Motors.
His professional career began
at Pratt & Whitney Aircraft in 1979 where he worked as a senior
engineer. Then he joined General Motors Research Laboratories in 1983
where he conducted extensive research works in the areas of structural
and system optimization. Following his experience in research, Dr. Song
moved to the midsize and luxury car division of General Motors in 1986
to become the manager of vehicle structure and system optimization. He
had been involved in various car development programs until he joined
Samsung Motors in 1996. He has teaching experience as an assistant
professor in mechanical engineering department at the
Korean
Military
Academy
.
Ji Oh Song serves on the
International Intelligent Manufacturing Systems (IMS) as the head of
the delegation of
Korea
,
and the Korean Society of Mechanical Engineers as a board member. He is
also a member of the external advisory board of Korea Advanced
Institute of Science and Technology (KAIST). He served as the chairman
of CAD/CAM Society, the vice chairman of the
Institute
of
Control
, Automation and
Systems Engineers,
Korea
,
and the vice chairman of the Korean Society of Mechanical Engineers.
He graduated from
Seoul
National
University
with a bachelors’ and a masters’ degree in mechanical engineering. He also received a masters’
degree and a Ph.D. from the
University
of
Iowa
,
U.S.A.
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Abstract
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Dr. Stefan Kaierle
|
President, European Laser Institute
Head, Department
System Technology, Fraunhofer Institute for Laser
Technology
,
Germany
|
Biography
|
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After studying Electrical
Engineering and a PhD in Mechanical Engineering at
RWTH
Aachen
University
,
Stefan Kaierle assumed responsibility for the department of Applications
and System Technology of the Fraunhofer ILT. He published more than 100
papers in the field of process control, laser system technology, laser
materials processing and related fields.
Stefan Kaierle has been
appointed to two guest professorships at Beijing University of
Technology and at Changchun University of Science and Technlogy (
China
).
Currently, he is also President of the European Laser Institute ELI. |
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Abstract
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Prof. Zhai Wanming
|
Chung Kong Scholar
Traction
Power
State
Key Laboratory,
Southwest
Jiaotong
University
|
Biography
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Zhai Wanming, a specialist in
railway engineering dynamics, was born in
Jingjiang
,
Jiangsu
Province in August 1963. He graduated from
Southwest
Jiaotong
University
in
1985 and received his Ph.D. degree from the same university in 1992. He
became a professor of
Southwest
Jiaotong
University
in 1994. In 1999 he
was appointed Chang Jiang Professor by the Ministry of Education. Now
he is the deputy director of Traction Power State Key Laboratory.
Professor Zhai and his
research team engaged in studies on railway vehicle and track system
dynamics, focusing on the dynamic safety of the wheel-rail system
arising from the increases of train speeds and train loads in Chinese
Railways. He has built a new theory system of vehicle-track coupling
dynamics and put forward a matching design method for designing the
dynamic performances of the vehicle and track systems. A computer
simulation platform was developed for analyzing the vehicle-track
coupling system dynamics. A field measurement technology was developed
to assess the safety of wheel/rail dynamic interactions. The above
research achievements have been successfully applied to more than 10
important engineering projects in Chinese Railways, showing very
obvious effect.
Professor Zhai has published
over 160 papers. He published one book, entitled “Vehicle-Track
Coupling Dynamics”, which was awarded the China Book Prize in 1998. He
won the first-class prize of National Award for Science and Technology
Progress by State Department in 2005, the first-class prize of Science
and Technology Progress Awards by the Ministry of Education in 2003 and
by
Sichuan
Province
in 2004.
He got the achievement prize of Zhan Tianyou Railway Science and
Technology Award in 2003. One of his research achievements was selected
to the top ten advances on science and technology in Chinese university
in the year of 2005.
He also received several
honors including the National Expert with Outstanding Contribution in
1994 and the Award of Chinese Youth Scientist in 2006. |
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Driving
Change in the Automobile Industry: Technology Trends and Challenges in
the 21st Century
Alan Taub
Executive Director, Research & Development, General Motors
Corporation
Abstract
The DNA
of the automobile has not changed for over 100 years. Vehicles continue
to be largely energized by petroleum, powered by internal combustion
engines, and operated via mechanical linkages. However, given today
challenges related to energy, environment, safety, and congestion, one
must question whether the continued evolution of this DNA will enable
sustainable industry growth. Fortunately, a new and revolutionary
automotive DNA is at hand, made possible by the convergence of advanced
propulsion, electrical and electronic controls and systems, telematics,
and advanced and smart materials. The convergence of these technologies
will enable the industry to reinvent the automobile and address the
externalities currently associated with our vehicles. The major issues
will be discussed in each technology arena, which in many cases
includes infrastructure and standards development. The presentation
will highlight how solutions to these issues will help the industry
reinvent the automobile and continue to grow the business sustainably.
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Surface Metrology for Control of Manufacture
David Whitehouse
Warwick
University
Abstract
The paper will show how the surface finish has been
used in production from the earliest time to the latest developments.
Surfaces have been used to control manufacture for many years. It
started in the late 1930s and has been developing ever since. The
reason for its usefulness is that the surface roughness is very
sensitive to change of any sort in the manufacturing process. At first
very simple parameters were used for example AA (CLA), Ra all words for
the average value of the roughness or sometimes Rt the peak to valley.
These were easy to measure from a chart. With the advent of digital
methods other aspects of the surface geometry could be used such as
waviness and form as well as signals from instruments measuring
roundness which enabled the machine tool to be monitored. Soon with the
use of random process analysis it became possible to measure tool wear
as well as factors such as grinding efficiency. In particular
correlation methods were used in abrasive processes such as polishing
and power spectral methods were used for single point cutting such as
turning. More recently multidimensional functions have been introduced.
One of these called the Wigner Distribution Function measures in time
as well space at the same time and can differentiate between different
forms of machine tool vibration including axial and radial modes. Chirp
signals indicating changing damping conditions in cutting can also be
monitored. The paper also shows how fractal analysis can be of use in
assessing some aspects of surface integrity especially of fine
processes. Some recent developments are introduced. These include three
generations of wavelet analysis which are now being used to
characterize surface defects on silicon wafers and free-form techniques
for controlling complicated geometries now being designed for optical
applications in scanners and similar devices.
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Nano-manufacturing－Vision and Missions
Bingheng Lu
Fellow of
Chinese
Academy
of Enginnering
Professor,
Institute Of Advanced Manufacturing Technology, Xian Jiaotong
University,
China
Abstract
The conceptions based on
discoveries made by scientists in nanoscience over the past decades
promise various encouraging products or systems which can change our world
in this century. But How long will it be before all of these becomes
true and what should be done from the perspective of manufacturing
engineering to turn the scientists' conceptions to real life products
in mass scale to serve human welfares. It is widely believed that the
timing has come for turning from nanoscience to nanomanufacturing. This
talk is based on the proposal of a grand research program "Basic
Research of Nanomanufacturing" to China National Natural Science
Foundation. The proposal is the result of the efforts by dozens of
cross-disciplinary exports in
China
over the past two
years. This talk is a brief introduction of the proposal, in an attempt
to provide a vision into nanomanufacturing concepts and define focus
studies for researchers working in the related fields. The talk has
come to mainly the following conclusions
(1) It is the critical mission for manufacturing engineers to develop
tools and consistent processes which enable a cost-effective and
mass-scale building of nanometer-scale structures, features, devices,
and systems suitable for integration across higher dimensional scales
(micro-, meso- and macroscale) to provide functional products and
useful services. The development of both these functional products and
their building processes may be inspired by the conceptions or
discoveries made in the nanoscience fields.
(2) Nanomanufacturing may be subdivided into three inter-related
research fields, i.e., (a)manufacturing of macro-scale objects or
structures in a nanometer or sub-nanometer level precision;
(b)Manufacturing of nanometer-scale objects or structures in large
mass; (c)assembly or integration of cross-scale or cross-dimensional
objects or structures into functional systems.
(3) The enabling technologies for nanomanufacturing which have to be
explored by manufacturing experts may include processes and tools for
creating nano-textured or sub-nano precision surfaces, generating
nano-scale patterns and multi-dimensions structures, connecting or
bonding cross-scale objects, and mass-manipulating cross-scale objects
in a nanometer precision.
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Dominant Design
for Product and Service Innovation: Strategies, Tools, and Case studies
Jay Lee
Ohio
Eminent Scholar
and
L.W. Scott Alter
Chair Professor in Advanced Manufacturing,
Univ.
of
Cincinnati
Abstract
Innovation is not an option
for today's industry. For the past decade, globalization and
transformation of the flat-world economy has produced vast new
challenges for industry. Innovation is not just about new product
development; it also refers to the creation of new value-added services
to transform better productivity and business performance. As the
practice of product design have expanded both in economic and social
impact and in technological complexity, so the demands upon innovative
service systems. For example, GE Medical changed its name to GE
Healthcare Technologies to expand its business opportunities. Companies
such as IBM and Xerox are also transforming to be smart service
business leaders. The key innovation of these successes is based on a
dominant design thinking and strategy on combined business model and
technology breakthroughs.
This presentation introduces the strategies for product and service
innovation based on a Dominant Design approach. Innovation matrix and
application space mapping tools will be used to illustrate how to
formulate "gaps" between product and customer needs. In
addition, examples will be used to illustrate how world-class companies
and small to media size companies can transform to innovative service
business.
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US National
Science Foundation Program in Nanomanufacturing
Shaochen Chen
Program Director for
Nanomanufacturing, Division of Civil, Mechanical and Manufacturing
Innovation, National Science Foundation, Room 545,
Wilson
Blvd.,
Arlington
,
VA
22230
,
USA
Abstract
The National Science Foundation
provided approximately $26.58 million in Fiscal Year 2007 for
fundamental research and education in nanomanufacturing in the
United States
,
mostly to colleges and universities, with some support provided to
small businesses. The core Nanomanufacturing Program emphasizes
scale-up of nanotechnology to increase the production rate,
reliability, robustness, yield, and efficiency of manufacturing
processes and reduce the cost of nanotechnology products and services.
Nanomanufacturing capitalizes on the special material properties and
processing capabilities at the nanoscale, promotes integration of
nanostructures to functional micro devices and meso/macroscale
architectures and systems, and addresses interfacing issues across
dimensional scales. The program promotes multi-functionality across all
energetic domains, including mechanical, thermal, fluidic, chemical,
biochemical, electromagnetic, optical etc. The focus incorporates a
systems approach, encompassing nanoscale materials and structures, fabrication
and integration processes, production equipment and characterization
instrumentation, theory/modeling/simulation and control tools,
biomimetic design and integration of multiscale functional systems, and
industrial application. In this talk, I will overview research projects
recently funded in the Nanomanufacturing Program at NSF.
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Title: Challenges and Innovations in Electronics
Manufacturing
Ji Oh Song
Executive Vice
President
Mechatronics &
Manufacturing Technology Center, Samsung Electronics Co., Ltd.
Abstract
The global electronics manufacturing
industries continue to expand as more electronic devices are becoming essential
commodities. The evolution of digital and information technology is
expanding the consumer electronics market in an unprecedented speed while
steep price drops are common for most products. The industry needs to
be more responsive to such market situations by adopting various innovations
in product design and manufacturing.
Many electronics companies are
trying to focus on their core competencies such as R&D and design
while manufacturing off-shore or through
EMS
companies to reduce cost and capital investment. However, competency in
manufacturing is equally important as it differentiates products by
quality, uniqueness, and cost.
Samsung Electronics, the
largest consumer electronics company in the world, is driving intensifying
manufacturing initiatives by ‘Re-discovering of manufacturing’. The
speech will deliver some cases of flexible and leaner manufacturing practiced
in Samsung Electronics. Products are designed for manufacturability,
maintenance, and environment. In-house developed equipment and
automation system enable better productivity and quality. Customized
manufacturing software systems form the fundamentals of lean manufacturing
system in Samsung. Discovering of invisible factory involves finding various
loss factors in manufacturing processes. Modifying de facto standard equipment
and optimizing by IE (Industrial Engineering) provide extra
productivity without investment. Traditional conveyor belt production lines
are replaced with cell manufacturing systems while low cost intelligent
automation and information technology support human workers. Finally,
our initiatives in developing young human resources for skilled works
by cooperating with the World Skills International will be presented.
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From Flexible to Adaptive
Manufacturing: an Approach for Laser MaterialsProcessing
Stefan Kaierle
Head of Department System Technology, Fraunhofer Institute for
Laser Technology
Abstract
The
trend towards flexible manufacturing has been an important driver for the
development of modern manufacturing technologies during the last
decade. Approaches such as flexible manufacturing systems have been
investigated and partly been realized. Such methods have mostly been
resource-based whereas it has become aware in recent time that a change
towards knowledge-based manufacturing appears to be expedient. This is
clearly underlined in the Strategic Research Agenda of the Manufuture
European Technology Platform. Manufuture had been founded - similar to
the Photonics21 platform - in order to develop and elaborate a research
agenda for the domain of manufacturing.
The presentation will give an overview on the demands and
drivers for new manufacturing approaches, broken down for laser
technology. This will be illustrated by the advancements of the recent
years that have been achieved in autonomous laser processing. A view
into adaptive manufacturing technology for laser materials processing
will top off this presentation.
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Theory and
Application of Railway Vehicle-Track Coupling Dynamics
Wanming Zhai
Southwest Jiaotong University
,
China
Abstract
Chinese Railways are in the
high transportation capacity condition for a long time, which results
in intense dynamic interaction between train and track. The safety
problem becomes severer than ordinary railways. The author and his
research team have done in-depth investigation on this area and got
systematical research achievements as follows:
(1) A new theory system has been built on vehicle-track coupling
dynamics, including the academic idea, theoretical model, numerical
method, simulation method and experimental method, which provide the
key theoretical base for the safety design of the vehicle and track
dynamic systems on Chinese railways with very high transportation
capacity and very high dynamic loads.
(2) The detailed
vehicle-track coupling models were established for typical locomotives,
passenger cars, freight cars and various tracks. Three research
advances were made. Firstly, the models completely describe the dynamic
properties and the interactive characteristic of the vehicle and track
system. Secondly, a new wheel/rail dynamically coupled model has been
established, which abandons three unreasonable hypotheses, i.e., the
rail is without movement, the wheel and the rail are rigid, and the
wheel always keep contact with the rail. The third, a model was built
for the analysis of railway ballast vibrations.
(3) A simulation platform
has been developed for optimal design of the overall vehicle-track
dynamic systems of high-speed railways, heavy-hual railways as well as
the speed-up railways in
China
, which include two
simulation systems, VICT for vertical system and TTISIM for lateral
system.
(4) A field measurement
system was developed to assess the safety of dynamic interactions
between railway vehicles and tracks. Several full-scale field
measurements have been carried out for the safety assessments of
high-speed and heavy-hual wheel/rail dynamic systems.
(5) A series of key dynamic
problems have been investigated and solved in Chinese railway
engineering, e.g., the nonlinear lateral vibration of SS7E type
locomotive, the wheel/rail dynamic safety on very small radius curves
in mountain areas, and the optimal design of high-speed slab track
structures.
Above research achievement was selected to the top ten advances
on science and technology in Chinese university in the year of 2005,
which was also assigned as the first-class prize of National Award for
Science and Technology Progress by State Department in 2005.
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