PAST RESEARCHERS


Rudranarayan M. Mukherjee
PhD, May 2007

E-Mail: Rudranarayan.M.Mukherjee@jpl.nasa.gov

Dissertation:
Multibody Dynamics Algorithm Development and Multiscale Modelling of Materials and Biomechanical Systems

PhD project involved the development of a suite of computational tools devoted to the efficient multiresolution modelling of molecular dynamics systems. These tools involve the coarsification of traditional molecular dynamic models through the use of internal coordinates, articulated rigid bodies, articulated flexible bodys, and special low computational order algorithms.

Where is he now:
Rudranarayan is now scientist working for NASA Jet Propulsion Laboratory, in Pasadena, California.




Adarsh Binani
MS, May 2007

E-Mail: Adarsh.Binani@mathworks.com

Thesis:
Design and Implementation of an Efficient Multibody Divide and Conquer Algorithm

MS project involved the development and implementation of a hybrid statespace recursive O(N) and Divide-and-Conquer Algorithm (DCA). This algorithm utilizes the DCA to obtain a desired level of parallelization, and uses the faster and more accurate state space O(N) formulation else where.

Where is he now:
Adarsh is now working for The Mathworks, in Boston, MA.




Mojtaba Oghbaei
PhD, May 2006

E-Mail: oghbaei@yahoo.com

Dissertation:
A State-Time Finite Element Formulation For Multibody Dynamic Systems Simulation

This PhD project involved formulating the equations of motion of articulated multibody systems as a coupled set of algebraic equations. The formulation captures shows at worst quadratic coupling of variables in the kinematic terms. As such this method produces a very large sparse system of algebraic equations in time and space, which may be parallelized simultaneously of both the spatial and temporal domains. This method may thus better exploit future anticiapated massively parallel computing resources.

Where is he now:
Mojtaba is now working for??, in Alexandria, VA.




Michael J. Sadowski
PhD, May 2005

E-Mail: Michael.Sadowski@baesystems.com

Dissertation:
An Efficient Method for Modelling Multibody Systems Dynamics With Many Unilateral Constraints and Its Application to Micro Electrical Mechanical Systems (MEMS)

This PhD project involved the extenstion of Recursive Coordinate Reduction (RCR) to more generic systems and applied it systems involving impacts, and unilateral constraints. Special attention was paid to MEMS applications involving many bilateral constraints, and several unilateral constraints.

Where is he now:
Mike is now working for BAE Systems, in Santa Clara, CA.




James H. Critchley
PhD, May 2003

E-Mail: James@MultibodyDynamics.com
Website: www.multibodydynamics.com

Dissertation:
A Parallel Logarithmic Time Complexity Algorithm for the Simulation of General Multibody System Dynamics

PhD project involved the development of a new hybrid parallel computing formalism which is adaptable to virtually any computing architecture, offering superior computational performance in most situations for general multibody rigid dynamics systems.

Where is he now:
James is now working for General Dynamics, in Detroit, MI




Philip J. Stephanou
MS, May 2003

E-Mail: phil@harmonicdevices.com

Dissertation:
Validation of the Computational Efficiency Associated with Competing Algorithms for the Simulation of Unconstrained and Constrained Multi-Rigid-Body Dynamic Systems

This MS project involved the extensive investigation of various constrained multibody formulations for the purpose of assessing their relative suitability for treating classes of contrained dynamic systems.

Where is he now:
Philip earn his PhD from U.C. Berkeley in 2006 and is now the Chief Technical Officer and Co-Founder of Harmonic Devices, Inc. in Berkeley, CA.





Omer Gundogdu
PhD, August 2000

Associate Professor
Ataturk Universitesi
Makina Muhendisligi Bolumu
25240 Erzurum TURKEY

Phone: +90 (442) 231-4861
Fax: +90 (442) 236-0957
E-Mail: ogundogdu@yahoo.com

Dissertation:
Quantification and Assessment of Objective Function Performance in Manual Materials Handling

PhD project involved quantification and assessment of the performances of some engineering-based objective functions that are being produced by biomechanic researchers in replicating human locomotion. Furthermore, simulation and analysis tools are developed which will aid in determining and training how a lifting task can best be accomplished.

Where is he now:
Omer is now an Associate Professor at Ataturk Universitesi in Turkey.




YuHung Hsu
PhD, May 2000

Devlopment Engineer II
ABAQUS, Inc.
1080 Main Street
Pawtucket, RI 02860

Phone: (401) 727-4380 x5506
E-Mail: yuhung.hsu@abaqus.com

Dissertation:
Order-n Analytic Sensitivity Analysis for Multibody Dynamic Systems Optimization

PhD project involved development of an efficient and fully-recursive analytical O(n) sensitivity algorithm, which resembles the O(n) dynamic forward analysis algorithm, to address common computational inefficiency of traditional direct differentiation approaches.

Where is he now:
YuHung is now a Development Engineer for ABAQUS, Inc., which develops advanced finite element analysis software.




Shanzhong (Shawn) Duan
PhD, May 1999

Assistant Professor
Department of Mechanical Engineering
CEH 236

South Dakota State University (SDSU)
Brookings, SD 57007

Phone: (605) 688-5930
E-Mail: shanzhong.duan@sdstate.edu

Dissertation:
Efficient Parallelizable Algorithm for the Motion Simulation of General Multi-Rigid-Body Mechanical Systems

PhD project involved development of a new hybrid parallelizable O(n) algorithm for modeling the dynamic behavior of multi-rigid-body systems.

Where is he now:
Shanzhong is now an Assistant Professor for the Department of Mechanical Engineering at South Dakota State University.



Last modified on July 12, 2004 by J. Evans; Created by J. Evans
©2004 Rensselaer - Department of Mechanical, Aerospace and Nuclear Engineering