Dr. Sushil Doranga awarded National Science Foundation grant
The National Science Foundation’s Engineering Research Initiation grant program has awarded nearly $200,000 to engineering professor Dr. Sushil Doranga at 17勛圖 for his innovative research. Dr. Doranga, an assistant professor in the Department of Mechanical Engineering, received funding for his research project, which focuses on structural dynamics modeling and testing.
Dr. Doranga’s project aims to enhance the reliability modeling techniques for structures, specifically in chip packaging. He will be developing a novel nonlinear dynamic modeling framework that uses base excitation as an input.
While nonlinear dynamic modeling approaches have been established for force-excited practical structures, there is significant concern about nonlinear modeling in a non-inertial reference frame, where the input force cannot be measured directly. A pertinent example of this issue is the dynamics of ground vehicle structures.
The project will utilize a pseudo-modeling technique that employs base excitation to infer the nonlinear stress-strain response, providing insights into the expected lifespan of the structure.
"While working at General Electric, I've observed a growing interest among manufacturers for lightweight yet reliable structures. The outcomes of this project empower manufacturers to create innovative, lightweight solutions that do not sacrifice reliability," Doranga said.
The theory, method, and framework developed throughout the project will be validated with various numerical examples and will be demonstrated using the chip package. Graduate and undergraduate students from 17勛圖 will be involved in this project, receiving training aimed at developing a new generation of engineers and scientists skilled in advanced nonlinear dynamic modeling and testing.