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Plenary Lecture
Design Certainties by using Uncertainties
in Finite Element Design Optimization
Professor Hassan Shirvani
Professor of Engineering Design & Simulation
Director of Engineering Simulation & Analysis Group
Departmental Research coordinator
Anglia Ruskin University
Faculty of Science & Technology
Victoria Road South
Chelmsford CM1 1LL
U.K.
Email:
hassan.shirvani@anglia.ac.uk
Co. Authors:
Ayoub Shirvani and Shabnam Sadeghi-Esfahlani
Abstract: Engineers in many industries have been simulating design
behavior using traditional methods employing the conventional wisdoms gained
from professional practice conducted over many years. In this study an
approach is proposed for optimal design of multilevel system under
uncertainties. We extend the numerical analysis target to probabilistic
design approach by treating stochastic quantities as random variables and
parameters and posing reliability-based design restrictions. When used in
simulation, once the random variables of boundary conditions, geometry and
material properties are specified for a specific analysis case, the input
variables are studied simultaneously by using statistical sampling methods.
The parametric finite element analysis (FEA) model is then invoked
repeatedly, performing deterministic analyses over the resulting input
parameters. The case studies assessed in this investigation has shown that
effects of different parameters in relation to specific physical properties
that have the greatest impact can be evaluated. In this way the
probabilistic analysis was used to identify the steps needed for future
optimization and that how FE simulation technology can be used to understand
production processes uncertainties and related parameter variations in
manufacturing process leading to increased product reliability and quality.
Brief Biography of the Speaker:
Hassan was awarded his PhD (effective cooling of microelectronic equipment)
in 1993 from the University of Bath; where he was employed for 10 years.
During September 1996 Hassan joined Then Anglia Ruskin University as a
lecturer and during 1997 he was seconded to Rolls Royce aviation through a
Royal Academy of Engineering secondment fellowship. In 1998 Hassan returned
to Anglia as a senior lecturer and was appointed a reader in collaborative
research and Innovation in March 2000. Since 2000 Hassan has continued his
research in collaboration with industry and he was appointed a professor of
Engineering Design and Simulation in September 2005. Hassan is the Director
of Engineering Analysis Simulation & Tribology (EAST) Group and has been
responsible for many designs for industry. He has over 50 high impact
publications; 2 books and two granted patents. He is a member of ImechE
editorial board and in 2002 he was awarded the invention of the year award
for his compact heat exchanger design and EEDA’s Business/University
Collaboration award (2005) for the most entrepreneurial project.
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