Center for Rotating Machinery Dynamics and Control

RECENT SELECTED PUBLICATIONS

1. Wiebrecht, J.J, Strick, J.A., Farris, R.J., and Sawicki, J.T., “Design and Evaluation of an Untethered Cable-Driven Joint System for Pediatric Knee-Ankle-Foot Orthoses,” to appear, ASME Journal of Biomechanical Engineering, 2025.
2. Strick, J.A, Wiebrecht, J.J., Farris, R.J, Sawicki, J.T., “Real-Time Experimental Validation of an Adaptive Gait Event Detection Algorithm,” IEEE Sensors Journal, DOI 10.1109/JSEN.2025.3546182, 2025.
3. Donati, G., Neri, M.O, Mugnaini, M, Basso, M., and Sawicki, J.T., “Low-order MIMO controller for turbomachinery supported by active magnetic bearings,” Journal of Vibration and Control, 10775463251317667, 2025.
4. Gavalas, I., Chasalevris, A., and Sawicki, J.T., “Adaptive Turbine-Generator Dynamics and Alignment utilizing Active Journal Bearings: An Analytical Investigation on System Modelling and Control,” to appear, Tribology International, Elsevier, 2025.
5. Donati, G., Donati, G., Neri, M. O., Mugnaini, M., Basso, M., and Sawicki, J. T., “Robust Controller Development Via Iterative Model Updating for Active Magnetic Bearing Rotor Systems.” ASME. J. Eng. Gas Turbines Power. January 2025; 147(1): 011025.
6. Chasalevris, A., Gavalas, I., and Sawicki, J.T., “Optimal Bearing Configuration Selection for Power Generation Shaft-Trains: A Linear and Nonlinear Dynamics Approach,” Journal of Sound and Vibration, 2024, 118907, ISSN 0022-460X.
7. Strick, J.A, Farris, R.J, Sawicki, J.T., “A Novel Gait Event Detection Algorithm Using a Thigh-Worn Inertial Measurement Unit and Joint Angle Information,” ASME Journal of Biomechanical Engineering, 2024, 146 (4), 044502.
8. Goo, A., Laubscher, C.A., Wajda, D.A., and Sawicki, J.T., “Preliminary Virtual Constraint-Based Control Evaluation on a Pediatric Lower-Limb Exoskeleton,” Bioengineering, 11(6), 590, 2024.
9. Laubscher, C.A., Goo, and Sawicki, J.T., “Adaptive Zero Dynamics Control with Optimal Phase Definition on a Lower-Limb Exoskeleton,” Control Engineering Practice, 139, 105651, 2023.
10. Goo, A., Wiebrecht, J.J., Wajda, D.A., and Sawicki, J.T., “Human Factors Assessment of a Novel Pediatric Lower-Limb Exoskeleton,” Robotics, 12(1), 26, 2023.
11. Goo, A., Laubscher, C.A., Wiebrecht, J.J. and Sawicki, J.T., “Hybrid Zero Dynamics Control for Gait Guidance of a Novel Adjustable Pediatric Lower-Limb Exoskeleton,” Bioengineering, 9, 208, 2022.
12. Goo, A., Laubscher, C.A. and Sawicki, J.T., “Hybrid Zero Dynamics-Based Control of an Underactuated Lower- Limb Exoskeleton for Gait Guidance,” ASME Journal of Dynamic Systems, Measurement and Control, 144(6): 061008, 2022.
13. Laubscher, C.A., Goo, A., Farris, R.J. and Sawicki, J.T., “Hybrid Impedance-Sliding Mode Switching Control of the Indego Explorer Lower-Limb Exoskeleton in Able-Bodied Walking,” Journal of Intelligent & Robotic Systems, Springer, 104:76, 2022.
14. Laubscher, C.A., Farris, R.J., van den Bogert, A.J. and Sawicki, J.T., “Assistive Control of an Anthropometrically Parametrized Lower-Limb Exoskeleton,” Design Innovation Paper, ASME Journal of Biomechanical Engineering, 143(10): 105001, 2021.
15. Laubscher, C.A. and Sawicki, J.T., “Robust Impedance Controller for Improved Safety in Human-Robot Interaction,” Design Innovation Paper, ASME Journal of Dynamic Systems, Measurement and Control, 143 (9): 091004, 2021.
16. Sahinkaya, A. and Sawicki, J.T., “Robust Control of AMB Systems with an Add-on Controller to Cancel Gyroscopic Effects, Is It Worth It?,” Journal of Vibration Control,Vol. 27(23-24), 2754–2764, 2021.
17. Goo, A., Laubscher, C.A., Farris, R.J. and Sawicki, J.T., “Design and Evaluation of a Pediatric Lower-Limb Exoskeleton Joint Actuator,” Actuators, 9(4), 138, 2020.
18. Laubscher, C.A., Farris, R.J. and Sawicki, J.T., “Angular momentum-based control of an underactuated orthotic system for standing balance,” Autonomous Robots, 44(8), 1469-1484, Springer 2020.
19. Sahinkaya, A., Hawkins, L. and Sawicki, J.T., “Computational Cost Reduction of MIMO Controllers for Active Magnetic Bearing Systems, ASME Journal of Engineering for Gas Turbines and Power,” 142 (11): 111002, 2020.
20. Hurrell, M. and Sawicki, J.T., “Pumping Loss of Shrouded Meshed Spur Gears,” ASME Journal of Engineering for Gas Turbines and Power, 142 (11): 111003, 2020 (2020 BEST Paper Award –ASME/IGTI).
21. Sahinkaya, A. and Sawicki, J.T., “Computationally Efficient Implementation of Robust Controllers in Active Magnetic Bearing Systems,” Mechanical Systems and Signal Processing, vol. 144, 106902. Elsevier, 2020.