Research

Research Areas

Model Synthesis for Discontinuous Systems

Development of model synthesis methods and model fidelity metrics for representing systems that involve discontinuities introduced by physically switched mechanisms like mechanical clutches, electric switches, and hydraulic valves. Some system examples include an electric boost converter, a hydraulic-ram pump, and a centrifugal clutch.

Model Fidelity Metrics for Virtual Vehicle Mission Studies

Development of a variable fidelity modeling approach that switches between reduced sub-models deduced using the principle of "activity." Each sub-model represents the system dynamics over a prescribed time span or frequency range. Computationally more efficient and appropriately accurate results have been achieved for a 2D-4DOF vehicle simulation by using this variable fidelity approach.

Applied Nonlinear Control

Application of nonlinear control theories including optimal control theory, sliding mode control, and feed-back linearization to design, model, and simulate physical systems in a various areas including hybrid-electric vehicles, structural damping, morphing structures, electromehanics, and biomedical engineering.

Research Group