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2022
S. Cheng, E. Bolivar-Nieto, C. Gonzalez Welker, and R. D. Gregg. “Modeling the Transitional Kinematics Between Variable-Incline Walking and Stair Climbing. ” IEEE Transactions on Medical Robotics and Bionics 4, no. 3 (August 2022): 840–51.
S. Guo, R.D. Gregg, and E. A. Bolívar-Nieto, "Convex Optimization for Spring Design of Parallel Elastic Actuators ", American Control Conference, 2022
R. Cortino, E. A. Bolívar-Nieto, T. K. Best, and R. D. Gregg, "Stair Ascent Phase-Variable Control of a Powered Knee-Ankle Prosthesis ", IEEE ICRA, 2022
2016-2021
E. A. Bolívar Nieto, G. C. Thomas, E. Rouse, and R. D. Gregg, “Convex Optimization for Spring Design in Series Elastic Actuators: From Theory to Practice, ” in IEEE International Conference on Robotics and Automation, 2021.
E. A. Bolívar-Nieto, T. Summers, R. D. Gregg, and S. Rezazadeh, “A convex optimization framework for robust-feasible series elastic actuators , ” Mechatronics, vol. 79, p. 102635, Nov. 2021.
E. Reznick, K. R. Embry, R. Neuman, E. Bolívar-Nieto, N. P. Fey, and R. D. Gregg, “Lower-limb kinematics and kinetics during continuously varying human locomotion , ” Sci. Data, vol. 8, no. 1, p. 282, Dec. 2021.
S. Cheng, E. Bolivar-Nieto, and R. D. Gregg, “Real-Time Activity Recognition With Instantaneous Characteristic Features of Thigh Kinematics , ” IEEE Trans. Neural Syst. Rehabil. Eng., vol. 29, pp. 1827–1837, 2021.
D. Raz, E. Bolívar-Nieto, N. Ozay, and R. D. Gregg, “Toward Phase-Variable Control of Sit-to-Stand Motion with a Powered Knee-Ankle Prosthesis, ” in IEEE Conference on Control Technology and Applications, 2021.
S. Kumar, M. Zwall, E. Bolivar-Nieto, R. D. Gregg, and N. Gans, “Extremum Seeking Control for Stiffness Auto-Tuning of a Quasi-Passive Ankle Exoskeleton , ” IEEE Robot. Autom. Lett., pp. 1–1, 2020.
E. A. Bolivar Nieto, S. Rezazadeh, and R. D. Gregg, “Minimizing Energy Consumption and Peak Power of Series Elastic Actuators: A Convex Optimization Framework for Elastic Element Design , ” IEEE/ASME Trans. Mechatronics, vol. 24, no. 3, pp. 1334–1345, Jun. 2019.
D. P. Allen, E. Bolívar, S. Farmer, W. Voit, and R. D. Gregg, “Mechanical Simplification of Variable-Stiffness Actuators Using Dielectric Elastomer Transducers , ” Actuators, vol. 8, no. 2, p. 44, May 2019.
E. Bolivar, S. Rezazadeh, T. Summers, and R. D. Gregg, “Robust Optimal Design of Energy Efficient Series Elastic Actuators: Application to a Powered Prosthetic Ankle , ” in 2019 IEEE 16th International Conference on Rehabilitation Robotics (ICORR), 2019, pp. 740–747.
E. Bolívar, S. Rezazadeh, and R. Gregg, “A General Framework for Minimizing Energy Consumption of Series Elastic Actuators With Regeneration , ” in ASME Dyn. Syst. Control Conf., 2017, pp. 1–10. Best Robotics Student Paper Award
E. Bolivar, D. Allen, G. Ellson, J. Cossio, W. Voit, and R. Gregg, “Towards a series elastic actuator with electrically modulated stiffness for Powered Ankle-Foot Orthoses , ” in 2016 IEEE International Conference on Automation Science and Engineering (CASE), 2016, pp. 1086–1093.
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