Stephen S G Lee
PhD,
PE, MSc, BEng(Hons), MASME, FSME
Associate Professor
Head, Manufacturing Engineering and
Director, Advanced Design and Modeling Laboratory
School of Mechanical & Aerospace Engineering
Nanyang Technological University
Tel: (65) 790-5580
Fax :
(65) 791-3712
Email: msglee@ntu.edu.sg
URL: http://www.ntu.edu.sg/home/msglee/mypage.html
About Myself
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I graduated from the then |
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DFX: Design for Assembly.
Design for Manufacture. Design for Repair and Maintenance. Design for
Safety. Design for Packaging. Design for the Environment. Concurrent Engineering.
Management of Design Quality and Product Development. Production management.
CAD: Geometric, feature-based
& constraint modeling. Virtual modeling.
Discrete Event Simulation: Input/Output
Analysis. Basic modeling building blocks. Simulation Life Cycle Analysis. Simulation
Languages. Verification and validation. Design of Experiments.
AI applications in design and manufacturing.
Creative Problem Solving
I researched into automated part assembly, systems modeling and simulation,
knowledge-based design and manufacturing, and protective product
packaging. Right now, I'm wandering in the vicinity of Web services-
enabled dynamic entreprise modeling, product
life-cycle management and sustainable product development.
Knowledge-based Systems in the Fault
Diagnosis of Mechanical and Thermal Systems, NTU Research Grant RP 19/87,
S$92,000.
The objective of the research was to understand
the diagnostic reasoning task and to develop computer-based aids for generic fault
diagnosis of mechanical and thermal engineering equipment and systems. The
common diagnostic procedures for rotating mechanical systems, robotic
manipulators, steam power plants and aircraft engines were formalised
and distilled into a generic knowledge-based framework. The candidate
collaborated with three other colleagues in this project.
An Investigation into the Orientation of Free-falling
Engineering Components Upon Impact with a Surface. NTU Research Grant RP 30/92, S$29,000.
The aim of the research was to analyse the impact and rebound behaviour
of small parts destined for automated assembly, with the view to improving the
design efficiencies of parts conveying and orienting equipment. The candidate
propounded a new algorithm for the computation of the probability distributions
of the natural resting poses of parts and validated it over a whole range of
part geometries. Because the new algorithm was simpler than the de facto
algorithm, the computational effort was markedly reduced. The candidate was the
principal investigator.
A Simulation-based, Multi-media
Decision-making System for Flexible Manufacturing. NTU Research Grant RP 39/94, S$49,200.
The investigators aimed to create a
simulation-based, multi-media decision-making system for the control and
teaching of flexible manufacturing. As a result of the research, an
Internet-based remote control of a flexible assembly cell was accomplished. At
the same time, extensive MSc(CIM) courseware and labware were
developed. The candidate collaborated with two other colleagues in this
project.
An Investigation into the Molding
Characteristics of Bio-Degradable Protective Packaging Materials. NTU Research Grant RP 62/97, S$148,000.
Expanded polystyrene foam is fast losing ground
as a protective packaging material because it is environmentally hostile. Yet,
it is the most cost-effective material known to packaging designers and can be
easily molded into any shape. On the other hand, the molding
of bio-degradable alternatives have yet to be proven on a commercial
scale. The objective of the research is to establish the molding parameters for
modified corn starch. Conducted in collaboration with a
Automated Integration of Manufacturing and Services
Systems, A*STAR SERC Pilot Programme, Sep 2004 - Feb
2005, S$50,000.
The objective of this six-month pilot research
is to establish the significant parameters for a full scale research into IMSS.
The key research areas encompass, among others,
ontology/semantics for manufacturing and services, virtualization of entreprises, data services and integration, and the
integration and dynamic coordination of business processes .
I am involved in the last mentioned research area.
An ontology-augmented,
context-aware Web services framework for agile enterprise collaboration, A*STAR
SERC Research Grant, Apr 2006 – Mar 2009, S$670,000.
Enterprises in the
networked economy of value chains form multiple short-term business
partnerships in response to opportunities in the dynamic business environment.
Before enterprises can collaborate seamlessly, intra-entreprise
business processes must first be formed, and the appropriate service matched,
selected, and mapped to the common business processes. This anticipated outcome of
this research is a proof-of-concept prototype for virtual or extended
enterprises to collaborate with one another.
Graduate research (on-going & completed)
An Investigation into Optimising PC-based Modeling and Simulation
Computer-Integrated
Selection & Sequencing of Modular Orienting Devices for Vibratory Bowl Feeders
A Genetic
Algorithm-enabled, Computerised Design and Simulated
Testing of Protective Product Packaging Buffers
A Methodology to Assess the Eco-Efficiency of the
various Stages of the Life Cycle of a Manufactured Product
Functional Design
of a Two-Stage Collapsible Core for uPVC
Plastic Injection Moulds
The
Development of an Intelligent, Collaborative, Resource-Driven, Dynamic
Manufacturing Scheduler.
A Constraint-Net Knowledge Representation Scheme with Natural Language Parsing
A hybrid Case and Knowledge-based Implementation
for on-line PC Technical Support
Modeling and monitoring concurrent, coupled design tasks
A holistic, multi-attribute,
intelligent paradigm for sustainable product development.
Web services-enabled entreprise modeling for dynamic collaboration
(Last Updated : 12 October 2006)