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| Villanova | Villanova Engineering | Mechanical Engineering | |
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Characterization of Nanoscale Behavior of Ceramics (Ongoing)
Objective: Development of multiscale modeling techniques for crack propagation and other phenomena of interest for ceramics that are strengthened with nano-dispersions. This modeling will use multiscale techniques such as the quasi-continuum method.
Status: Ongoing since January 2006
Funding: Funding provide through Advanced Ceramics Manufacturing, Tucson, AZ
Collaborators: Sridhar Santhanam, C. Nataraj, K.P. Jen, T. Radakrishnan (all faculty at Villanova), Vinodkumar Rautwar (graduate assistant).
Publications:
Electro-Mechanical Analysis and Optimization for MEMS applications (Ongoing)
Objective: To improve the performance and reliability of MEMS (Micro-Electro-Mechanical-Systems) through shape and topology optimization. The main focus of this work is on electrostatically actuated MEMS.
Status: Ongoing since 2002
Funding: There is not current funding for this work. Past funding provided by NSF. Two year fellowship awarded by Sandia National Laboratory for PhD work.
Collaborators: Kurt Maute (P.I. on grant and thesis advisor), Marty Dunne (co-PI on grant, committee member), Joe Pajot, Matt Allen, (Fellow students), Rajesh Poola, Wissam Houchaime (Supervised master's students)
Publications:
Topology optimization of electrostatically actuated microsystems
Optimization of Fully Coupled Electrostatic-Fluid-Structure Interaction Problems
Reliability-Based Analysis and Design Optimization of Electrostatically Actuated MEMS
A methodology for analyzing the variability in the performance of a MEMS
actuator made from a novel ceramic
Optimal Design of
Electrostatically Actuated Microsystems - PhD Thesis
Reliability and Optimization of Magnetostatic Actuators (Ongoing)
Objective: Developing high-fidelity methods for the reliability based design optimization of magnetostatic actuators.
Status: Ongoing since May 2005
Funding: No current funding
Collaborators: Ahsan Samiee (graduate assistant)
Publications: Upcoming paper at WCCM VII, Los Angeles, CA; July 2006
Sonic Boom Minimization (May 2001 - October 2001)
Objective: Use existing shape optimization technology in order to reduce the initial shock pressure rise from a supersonic aircraft.
Status: Completed
Funding: Funding for this project was provided by DARPA
Collaborators: Charbel Farhat (P.I. on grant), Brian Argrow, Kurt Maute, Sedat Biringen (Faculty on grant), Melike Nikbay (Fellow student)
Publications:
"A Shape Optimization Methodology for Reducing
the Sonic Boom Initial Pressure Rise." Farhat, et. al. AIAA
paper 2002-0145
Inverse Optimization for Improvement of Problem Formulation (November 2001)
Objective: To improve the reformulation of an optimization problem by taking into account user modification to an optimal design. An inverse optimization problem will be solved based on the KKT optimality conditions in order to reformulate the problem.
Status: Completed
Funding: Provided by CU Boulder
Collaborators: Kurt Maute
Publications:
An Adaptive
Interactive Method for Computer Aided Optimal Design
Software Development (Ongoing)
M-FEM: A multiphysics finite element and optimization software package developed at the University of Colorado, at Boulder, in the Center for Aerospace Structures. Capabilities:
1. Structural, electrostatic, thermal, magnetostatic and contact analysis
capabilites. 2. Structural shape/topology optimization
3. Aeroelastic coupling (with external flow solver) and shape optimization
4. Electro-mechanical coupling, shape/topology optimization and stability solver
5. Thermo-mechanical coupling and shape/topology
optimization 6. Co-rotational non-linear solver and FETI
parallel solver.
Sdesign: A software tool developed by Kurt Maute and myself in C++ for the following purposes: