DISSERTATION
“Evaluating and Augmenting Fuel Saving Benefits Obtained in Aircraft Formation Flight”
Presented to the Faculty of the Graduate School of the University of Texas at Arlington in fulfillment of the Doctor of Philosophy in Aerospace Engineering.
May 6th, 2015.
Peer-Reviewed Journal Publications
1.Shi, J., Okolo, W., and Wu, D., “Remaining Flying Time Prediction of Unmanned Aerial Vehicles under Different Load Conditions”, submitted to the AIAA Journal of Aerospace Information Systems.
2.Okolo, W., Margolis, B., D’Souza, S., Yount, B., Barton J., B., and Johnson, B., “Development and Evaluation of Control Architectures for a Mechanically Deployed Entry Vehicle”, AIAA Journal of Spacecraft and Rockets, v. 59, no. 4, July-August 2022, pp. 1228-1239, doi: http://arc.aiaa.org/doi/pdfplus/10.2514/1.A35255.
3.Ogunsina, K. and Okolo, W., “Artificial Neural Network Modeling for Airline Disruption Management”, AIAA Journal of Aerospace Information Systems, v. 19, no. 5, May 2022, pp. 382-393, doi: https://arc.aiaa.org/doi/pdf/10.2514/1.I011018.
4.Banerjee, P., Okolo, W., and Moore, A., “In-Flight Detection of Vibration Anomalies in Unmanned Aerial Vehicles”, ASME Journal of Nondestructive Evaluation, Nov. 2020, v. 3, no. 4: 041105, doi: https://doi.org/10.1115/1.4047468.
5.Okolo, W., Dogan, A., and Blake, W., “Ride Quality within Conventional and Delta-Wing Aircraft in Formation Flight”, AIAA Journal of Aircraft, v. 55, no. 4, July-August 2018, pp. 1592-1604, doi: http://arc.aiaa.org/doi/pdfplus/10.2514/1.C034754.
6.Okolo, W., Dogan, A., and Blake, W., “Alternate Trimming Methods for Trailing Aircraft in Formation Flight”, AIAA Journal of Guidance, Control, and Dynamics, v. 38, no. 10, October 2015, pp. 2018-2024, doi: http://arc.aiaa.org/doi/pdfplus/10.2514/1.G000574.
7.Okolo, W., Dogan, A., and Blake, W., “Effect of Trail Aircraft Trim on Sweet Spot in Formation Flight”, AIAA Journal of Aircraft, v. 52, no. 4, July-August 2015, pp. 1201-1213, doi: http://arc.aiaa.org/doi/pdfplus/10.2514/1.C032865.
Conference Papers
1.Bhusal, R., Khanal, A., Subbarao, K., Chakravarthy, A., and Okolo, W., “Quantitative Conflict Detection in an Airspace of Heterogenous Unmanned Aerial Vehicles Subject to Wind Uncertainties,” Proceedings of the AIAA SciTech Forum in National Harbor, Maryland, Jan. 23-27, 2023
2.Bhusal, R., Khanal, A., Subbarao, K., Chakravarthy, A., and Okolo, W., “Maximum Uncertainty Distribution in a Traffic of Small Unmanned Aerial Vehicles for Collision-Free Airspace Operation,” Proceedings of the AIAA SciTech Forum in National Harbor, Maryland, Jan. 23-27, 2023
3.Bhusal, R., Khanal, A., Subbarao, K., Chakravarthy, A., and Okolo, W., “Uncertainty Quantification and Collision Assessment in a Traffic of Unmanned Vehicles,” Proceedings of the AIAA SciTech Forum in National Harbor, Maryland, Jan. 23-27, 2023
4.Baculi, J., Nguyen, N., Okolo, W., and Xiong, J., “Wake Vortex Effects between Urban Air Mobility Aircraft,” Proceedings of the AIAA SciTech Forum in National Harbor, Maryland, Jan. 23-27, 2023
5.Jarvis, K., Teubert, C., Okolo, W., and Kulkarni, C., “Improving Computational Efficiency of Prognostics Algorithms in Resource-Constrained Settings”, Proceedings of the IEEE Aerospace Conference in Bluesky, Montana, March 5-12, 2022
6.Okolo, W., and Robinson, E., “Estimation of Permanent Magnet Synchronous Motor Parameters using a Linear Unknown Input Interval Observer”, Proceedings of the AIAA SciTech Forum in San Diego, California, Jan. 3-7, 2022
7.Nguyen, N., Bartolini, G., Baculi, J., Okolo, W., and Xiong, J., “Wake Vortex Interaction of Urban Air Mobility Aircraft,” Proceedings of the AIAA SciTech Forum in San Diego, California, Jan. 3-7, 2022
8.Okolo, W., Margolis, B., D’Souza, S, and Barton, J., “Pterodactyl: Development and Comparison of Control Architectures for a Mechanically Deployed Entry Vehicle”, AIAA paper, Proceedings of the AIAA SciTech Forum in Orlando, Florida, Jan. 6-10, 2020
9.Margolis, B., Okolo, W., and D’Souza, S, “Control Design & Sensitivity Analysis for a Deployable Entry Vehicle with Aerodynamic Control Surfaces”, IAC/IAF paper, Proceedings of the International Astronautical Conference by the International Astronautical Federation in Washington, DC, October 21-25, 2019
10.Margolis, B., Okolo, W., Nikaido, B., Barton, J., and D’Souza, S, “Control and Simulation of a Deployable Entry Vehicle with Aerodynamic Control Surfaces”, AAS/AIAA paper, Proceedings of the AAS/AIAA Astrodynamics Conference in Portland, Maine, August 11-15, 2019
11.Corbetta, M., Banerjee, P., Okolo, W., Gorospe, G., and Luchinsky, D., “Real-time UAV Trajectory Prediction for Safety Monitoring in Low-Altitude Airspace”, AIAA paper, Proceedings of the AIAA Aviation Forum in Dallas, Texas, June 17-21, 2019
12.D’Souza, S., Okolo, W., Nikaido, B., Yount, B., Tran, J., Margolis, B., Smith, B., Cassell, A., Johnson, B., Hibbard, E., Barton, J., and Hays, Z., “Developing an Entry Guidance and Control Design Capability using Flaps for the Lifting Nano-ADEPT”, AIAA paper, Proceedings of the AIAA Aviation Forum in Dallas, Texas, June 17-21, 2019
13.Okolo, W., O’Connor, M., Spirkovska, L., and Soyfer, H., “Identification of Safety Metrics for Airport Surface Operations”, AIAA paper, Proceedings of the AIAA Aviation Forum in Atlanta, Georgia, June 25-29, 2018
14.Snyder, S., Barton, B., Morelli, E., Frost, S., Teubert, C., and Okolo, W., “Online Control Design for Learn to Fly”, AIAA paper, Proceedings of the AIAA Aviation Forum in Atlanta, Georgia, June 25-29, 2018
15.Okolo, W., Dogan, A., and Blake, W., “Benefits of Formation Flight of Extended Duration Considering Fuel Burn”, AIAA paper 2015-2234, Proceedings of the AIAA Aviation Conference in Dallas, Texas, June 22-26, 2015
16.Okolo, W., Dogan, A., and Blake, W., “Ride Quality Within Trail Aircraft in Formation Flight”, AIAA paper 2015-3325, Proceedings of the AIAA Aviation Conference in Dallas, Texas, June 22-26, 2015
17.Okolo, W., Dogan, A., and Blake, W., “Effect of Trail Aircraft Size on Sweet Spot Location for a Conventional Aircraft Pair in Formation ”, AIAA paper 2015-0011, Proceedings of the AIAA SciTech Conference in Kissimmee, Florida, Jan. 5-9, 2015
18.Blake, W., Okolo, W., and Dogan, A., “Development of an Aerodynamic Model for a Delta-Wing Equivalent Model II (EQ-II) Aircraft”, AIAA paper 2015-0902, Proceedings of the AIAA SciTech Conference in Kissimmee, Florida, Jan. 5-9, 2015
19.Kampoon, J., Okolo, W., Sukru, A., Daskiran, O., and Dogan, A., “Wind Field Estimation and Its Utilization in Trajectory Prediction”, AIAA paper 2015-0756, Proceedings of the AIAA SciTech Conference in Kissimmee, Florida, Jan. 5-9, 2015
20.Kampoon, J., Okolo, W., Sukru, A., Daskiran, O., and Dogan, A., “Aircraft Input Prediction in the Presence of Spatially Varying Wind Field”, AIAA paper 2015-0755, Proceedings of the AIAA SciTech Conference in Kissimmee, Florida, Jan. 5-9, 2015
21.Okolo, W., Dogan, A., and Blake, W., “Modified Study of Trail Aircraft Trim Effect on Sweet Spot in Formation Flight”, AIAA paper 2014-0541, Proceedings of the AIAA SciTech Conference in National Harbor, Maryland, Jan. 13-17, 2014
22.Okolo, W., Dogan, A., and Blake, W., “A Modified Analysis of Alternate Lateral Trimming Methods for Flying Wing Aircraft at Sweet Spot in Formation Flight”, AIAA paper 2014-0543, Proceedings of the AIAA SciTech Conference in National Harbor, Maryland, Jan. 13-17, 2014
23.Okolo, W., Dogan, A., and Blake, W., “Application of Sweet Spot Determination to a Conventional Pair of Aircraft”, AIAA paper 2012-4402, Proceedings of the AIAA AFM Conference in Minneapolis, Minnesota, Aug. 13-16, 2012
24.Okolo, W., Dogan, A., and Blake, W., “Aircraft Lateral Trim Using Internal Fuel Transfer and Differential Thrust in Formation Flight”, AIAA paper 2011-6613, Proceedings of the AIAA AFM Conference in Portland, Oregon, Aug. 8-11, 2011
25.Okolo, W., Dogan, A., and Blake, W., “Determination of Sweet Spot for Trailing Aircraft in Formation Flight”, AIAA paper 2011-6302, Proceedings of the AIAA AFM Conference in Portland, Oregon, Aug. 8-11, 2011