The Nonlinear Dynamics and Vibration Laboratory
Link List
The Nonlinear Dynamics and Vibration Laboratory (NDVL) researches system identification and structural health monitoring in nonlinear systems, nonlinear feedback control for enhanced sensitivity in damage detection and sensing, analyzing the dynamics of nonlinear piecewise-linear systems, bifurcation forecasting, and turbomachinery modeling and analysis. The two key research thrusts are (1) the creation of techniques to efficiently model, analyze, and exploit nonlinearity, and (2) the analysis of complex high-dimensional cyclic structures found in turbomachinery. To aid in the analysis and experimentation of turbomachinery the NDVL is partnered with the Gas Turbine Laboratory (GTL) at The Ohio State University. The work at the GTL focuses on full scale industrial turbomachinery operating at engine speeds. The NDVL is focused on more fundamental research such as creating tools for analyzing and exploiting nonlinear dynamics, with the goal of investigating some of these tools in the GTL with industrial hardware to accelerate industrial partners’ usage of these tools. The research that is being conducted can be broken into general nonlinear dynamics and structural dynamics of turbomachinery.
Accordions
The NDVL is always looking for exceptional undergraduate and graduate students to work on a variety of projects related to structural and nonlinear dynamics. Projects range from computational and theoretical work to hands-on experimental work related to dynamics and vibration.
Undergraduate students please apply to open positions through the HandShake tool.
Graduate students please reach out to Professor D'Souza at his university e-mail address. Please include a current resume/CV as well as a cover letter addressing your interests and goals.
Collaborations
- Structural Dynamics Lab at Meiji University
- Applied Nonlinear Dynamics of Multi-Scale Systems Lab at the University of Michigan
- Nonlinear & Structural Dynamics Laboratory at the National Tsing Hua University
- Partnered with the OSU Gas Turbine Laboratory
Affiliations and Resources
- Part of the OSU Mechanical and Aerospace Engineering Department
- Lab located in the OSU Aerospace Research Center
- Projects use resources of the OSU SimCenter
- Also have access to Ohio Supercomputer Center resources
Would you like to help the Nonlinear Dynamics and Vibrations Laboratory?
- Please contact the lab director if you are interested in setting up a research program.
- There are a variety of methods for making a gift to the NDVL. To ensure that your donation is directed to the NDVL, please reference the fund number 315579:
Online
Make a one-time gift (fund number 315579)
By Phone
Call (614) 292-2141. Donation via debit card, credit card and electronic funds transfer available by phone.
By Mail
To send a gift by mail, request a giving form from [email protected] and mail it to:
The Ohio State University Foundation
1480 West Lane Avenue
Columbus, OH 43221
If sending a check, please make payable to: The Ohio State University Foundation.
Tax Information
The Ohio State University Foundation has 501(c)(3) non-profit tax exempt status, with a federal tax ID number of 31-1145986.
Recent NDVL News
- September 15: Report published online on live UAS engine ingestion: Task A43: Airborne Collision Severity Evaluation – Engine Ingestion Final Report
- August 26: ME7255: Turbomachinery Dynamics and ME7250 Discrete Vibrations taught online as a part of the new online Professional Masters in Applied Aeronautics.
- August 25: Patent filed on structural dynamic modeling technique for more effective modeling of multi-component system
- August 18-20: Professor D'Souza and graduate students (Noah Broski and Yuqin Guan) attend ASME IDETC/CIE conferences to present research on energy harvesting and blade tip rub modeling
- August 1: Paper on mistuning modeling of bladed disks with shrouds and dual flow paths published online: Capturing Mistuning Within Shrouded Integrally Bladed Disks with the Generalized Model of Mistuning
- July 1: Research highlighted in ASME Mechanical Engineering magazine: Drones vs. Jets
- June 24-August 18: Yuqin Guan participates in summer research program in Taiwan working in the Nonlinear & Structural Dynamics Laboratory
- June 16-19: Professor D'Souza attends 2025 ASME Turbo Expo in London to chair sessions, present new mistuning model method and receive Structures and Dynamics Committee Best Paper Award from the 2024 ASME Turbo Expo
- June 9: New GE project focused on blade tip rubs
- May 31: Patent filed on piezoelectric beam energy harvesters
- May 30: Keegan Shafner and Nill Thanadis awarded College of Engineering Scholarships for pursuit of their Undergraduate Honors Thesis
- May 21: Dr. D'Souza promoted from Associate to Full Professor
- May 19: A Broadband Piezoelectric Energy Harvester With Robust Control Using Piecewise Nonlinearity published online in the Journal of Computational and Nonlinear Dynamics
- April 18: Keegan Shafner awarded Ohio Space Grant Consortium Scholarship
- April 17: Professor D'Souza awarded Lumley Research Award
- April 10: Troy Krizak defends his PhD thesis titled: Investigation of Reduced Order Modeling Techniques for Capturing Damping and Mistuning in Bladed Disks
- April 7: Paul Gusmano defends his MS thesis titled: Exploiting Piecewise Linearity in Wave Energy Converters
- February 27: A generalized model of mistuning for bladed disks published online in the Journal of Sound and Vibration
- January 28: Comparison of Ingestion of Different Size Hard and Soft Bodies Into a Representative Fan Assembly Model wins best paper award by Structures and Dynamics Committee at the 2024 ASME Turbo Expo
- January 14: Undergraduate student Cesar Aoun awarded College Fellowship for graduate studies
