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Journal Articles

PBVI for Optimal Photoplethysmography Noise Filter Selection Using Human Activity Recognition Observations for Improved Heart Rate Estimation on Multi-Sensor Systems

Jacob J. Sindorf, Sangram Redkar
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Research-Article
J. Med. Devices. March 2024, 18(1): 011005.
Paper No: MED-23-1054
https://doi.org/10.1115/1.4065219
Published Online: April 15, 2024
View Article titled, PBVI for Optimal Photoplethysmography Noise Filter Selection Using Human Activity Recognition Observations for Improved Heart Rate Estimation on Multi-Sensor Systems
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Topics: Filters, Sensors, Accelerometers, Signals
Proceedings Papers

Control Design and Simulation Framework for an Autonomous Paramotor UAV

Sangram Redkar, Brett Fiedler
Proc. ASME. IDETC-CIE2022, Volume 7: 46th Mechanisms and Robotics Conference (MR), V007T07A059, August 14–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: DETC2022-91283
https://doi.org/10.1115/DETC2022-91283
View Paper titled, Control Design and Simulation Framework for an Autonomous Paramotor UAV
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Topics: Adaptive control, Design, Dynamics (Mechanics), Simulation, Unmanned aerial vehicles
Journal Articles

New Compound Fractional Sliding Mode Control and Super-Twisting Control of a MEMS Gyroscope

Mehran Rahmani, Sangram Redkar
Journal: ASME Letters in Dynamic Systems and Control
Publisher: ASME
Article Type: Research Papers
Letters Dyn. Sys. Control. October 2022, 2(4): 040904.
Paper No: ALDSC-22-1019
https://doi.org/10.1115/1.4055878
Published Online: November 2, 2022
View Article titled, New Compound Fractional Sliding Mode Control and Super-Twisting Control of a MEMS Gyroscope
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Topics: Microelectromechanical systems, Sliding mode control, Control equipment, Simulation results, Sound transmission class, Robustness
Journal Articles

Order Reduction of Nonlinear Quasi-Periodic Systems Using Lyapunov–Perron Transformation

Susheelkumar C. Subramanian, Sangram Redkar
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. September 2022, 17(9): 091002.
Paper No: CND-22-1028
https://doi.org/10.1115/1.4054349
Published Online: May 10, 2022
View Article titled, Order Reduction of Nonlinear Quasi-Periodic Systems Using Lyapunov–Perron Transformation
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Topics: Manifolds, Errors, Computation
Journal Articles

Stability and Robustness Analysis of Quasi-Periodic System Subjected to Uncertain Parametric Excitations and Nonlinear Perturbations

Susheelkumar C. Subramanian, Sangram Redkar
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. October 2022, 144(5): 051010.
Paper No: VIB-21-1145
https://doi.org/10.1115/1.4054359
Published Online: May 10, 2022
View Article titled, Stability and Robustness Analysis of Quasi-Periodic System Subjected to Uncertain Parametric Excitations and Nonlinear Perturbations
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Topics: Excitation, Robustness, Stability, Theorems (Mathematics)
Journal Articles

Application of Floquet Theory to Human Gait Kinematics and Dynamics

Sandesh G. Bhat, Susheelkumar C. Subramanian, Thomas S. Sugar, Sangram Redkar
Journal: Journal of Mechanisms and Robotics
Publisher: ASME
Article Type: Research Papers
J. Mechanisms Robotics. December 2021, 13(6): 061003.
Paper No: JMR-20-1471
https://doi.org/10.1115/1.4050199
Published Online: May 31, 2021
View Article titled, Application of Floquet Theory to Human Gait Kinematics and Dynamics
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Topics: Dynamic systems, Dynamics (Mechanics), Kinematics, Time series, Manifolds, Knee, Stability
Journal Articles

Lyapunov–Perron Transformation for Quasi-Periodic Systems and Its Applications

Susheelkumar C. Subramanian, Sangram Redkar
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research Papers
J. Vib. Acoust. August 2021, 143(4): 041015.
Paper No: VIB-20-1625
https://doi.org/10.1115/1.4050528
Published Online: April 2, 2021
View Article titled, Lyapunov–Perron Transformation for Quasi-Periodic Systems and Its Applications
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Topics: Excitation, Resonance, Computation, Stability
Proceedings Papers

Stability Analysis and Controller Design for Linear Time Periodic Systems Using Normal Forms

Susheelkumar C. Subramanian, Sangram Redkar
Proc. ASME. DSCC2020, Volume 2: Intelligent Transportation/Vehicles; Manufacturing; Mechatronics; Engine/After-Treatment Systems; Soft Actuators/Manipulators; Modeling/Validation; Motion/Vibration Control Applications; Multi-Agent/Networked Systems; Path Planning/Motion Control; Renewable/Smart Energy Systems; Security/Privacy of Cyber-Physical Systems; Sensors/Actuators; Tracking Control Systems; Unmanned Ground/Aerial Vehicles; Vehicle Dynamics, Estimation, Control; Vibration/Control Systems; Vibrations, V002T38A001, October 5–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2020-3132
https://doi.org/10.1115/DSCC2020-3132
View Paper titled, Stability Analysis and Controller Design for Linear Time Periodic Systems Using Normal Forms
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Topics: Control equipment, Design, Stability
Journal Articles

Comparison of Poincaré Normal Forms and Floquet Theory for Analysis of Linear Time Periodic Systems

Susheelkumar C. Subramanian, Sangram Redkar
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Technical Briefs
J. Comput. Nonlinear Dynam. January 2021, 16(1): 014502.
Paper No: CND-20-1243
https://doi.org/10.1115/1.4048715
Published Online: November 11, 2020
View Article titled, Comparison of Poincaré Normal Forms and Floquet Theory for Analysis of Linear Time Periodic Systems
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Topics: Stability, Time-invariant systems, Damping, Nonlinear equations
Proceedings Papers

Reconstruction of Ground Reaction Force Data Using Lyapunov Floquet Theory and Invariant Manifold Theory

Sandesh G. Bhat, Thomas G. Sugar, Sangram Redkar
Proc. ASME. IDETC-CIE2020, Volume 10: 44th Mechanisms and Robotics Conference (MR), V010T10A047, August 17–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22521
https://doi.org/10.1115/DETC2020-22521
View Paper titled, Reconstruction of Ground Reaction Force Data Using Lyapunov Floquet Theory and Invariant Manifold Theory
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Topics: Manifolds, Approximation, Degrees of freedom, Dynamics (Mechanics), Nonlinear dynamical systems, Plates (structures), Reduced order systems, Sensors
Proceedings Papers

Lyapunov Perron Transformation for Linear Quasi-Periodic Systems

Susheelkumar C. Subramanian, Sangram Redkar, Peter Waswa
Proc. ASME. IDETC-CIE2020, Volume 2: 16th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), V002T02A003, August 17–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22230
https://doi.org/10.1115/DETC2020-22230
View Paper titled, Lyapunov Perron Transformation for Linear Quasi-Periodic Systems
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Topics: Nonlinear dynamics
Proceedings Papers

Invariant Manifolds in Human Joint Angle Analysis During Walking Gait

Sandesh G. Bhat, Thomas G. Sugar, Sangram Redkar
Proc. ASME. IDETC-CIE2020, Volume 2: 16th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), V002T02A031, August 17–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22241
https://doi.org/10.1115/DETC2020-22241
View Paper titled, Invariant Manifolds in Human Joint Angle Analysis During Walking Gait
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Topics: Dynamics (Mechanics), Manifolds, Algorithms, Dynamic systems, Kinematics, Phase space, Biomechanics, Degrees of freedom, Delays, Linear systems
Proceedings Papers

Unification of Poincaré and Floquet Theory for Time Periodic Systems

Susheelkumar C. Subramanian, Sangram Redkar
Proc. ASME. IDETC-CIE2020, Volume 2: 16th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), V002T02A042, August 17–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22524
https://doi.org/10.1115/DETC2020-22524
View Paper titled, Unification of Poincaré and Floquet Theory for Time Periodic Systems
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Topics: Damping, Nonlinear dynamics, Numerical analysis, Stability
Journal Articles

Reducibility and Analysis of Linear Quasi-Periodic Systems Via Normal Forms

Peter M. B. Waswa, Sangram Redkar
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. September 2020, 15(9): 091010.
Paper No: CND-19-1489
https://doi.org/10.1115/1.4046899
Published Online: July 16, 2020
View Article titled, Reducibility and Analysis of Linear Quasi-Periodic Systems Via Normal Forms
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Topics: Bifurcation, Excitation, Linear systems, Resonance, Stability, Performance, Eigenvalues
Proceedings Papers

Human Computer Interface Using Electroencephalography for Driver Behavior Classification

Vamsi K. Manchala, Alvaro V. Clara, Susheelkumar C. Subramanian, Sangram Redkar, Thomas Sugar
Proc. ASME. IDETC-CIE2019, Volume 3: 21st International Conference on Advanced Vehicle Technologies; 16th International Conference on Design Education, V003T01A014, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-97540
https://doi.org/10.1115/DETC2019-97540
View Paper titled, Human Computer Interface Using Electroencephalography for Driver Behavior Classification
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Topics: Electroencephalography, User interfaces, Vehicles, Artificial neural networks, Machine learning, Support vector machines, Brain, Computers
Proceedings Papers

Lucid Analysis of Periodically Forced Nonlinear Systems via Normal Forms

Peter M. B. Waswa, Sangram Redkar
Proc. ASME. IDETC-CIE2019, Volume 6: 15th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T09A044, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-97100
https://doi.org/10.1115/DETC2019-97100
View Paper titled, Lucid Analysis of Periodically Forced Nonlinear Systems via Normal Forms
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Topics: Nonlinear systems, Construction
Proceedings Papers

Design and Analysis of an Auto-Parametrically Excited Platform for Active Vibration Control

Thao Le, Sandesh G. Bhat, Susheelkumar C. Subramanian, Peter M. B. Waswa, Sangram Redkar
Proc. ASME. IDETC-CIE2019, Volume 6: 15th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T09A046, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-97471
https://doi.org/10.1115/DETC2019-97471
View Paper titled, Design and Analysis of an Auto-Parametrically Excited Platform for Active Vibration Control
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Topics: Dampers, Design, Errors, Nonlinear equations, Resonance, Rotation, Simulation, Simulation models, Simulation results, Springs
Proceedings Papers

The Design of Robust Phase Oscillator for Wearable Robotic Systems

Juan De La Fuente, Susheelkumar C. Subramanian, Prudhvi Tej Chinimilli, Sangram Redkar, Thomas Sugar
Proc. ASME. IDETC-CIE2019, Volume 5A: 43rd Mechanisms and Robotics Conference, V05AT07A058, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-97453
https://doi.org/10.1115/DETC2019-97453
View Paper titled, The Design of Robust Phase Oscillator for Wearable Robotic Systems
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Topics: Design, Robotics, Robots, Control equipment, Damping, Exoskeleton devices, Limit cycles, Noise (Sound), Pendulums, Robustness
Proceedings Papers

Design and Development of an Unmanned Underwater Vehicle (UUV) in the Form of a Cuttlefish

Susheelkumar Cherangara Subramanian, Thao Le, Jason Olson, Sandesh Bhat, Sangram Redkar
Proc. ASME. IMECE2018, Volume 4B: Dynamics, Vibration, and Control, V04BT06A020, November 9–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2018-86530
https://doi.org/10.1115/IMECE2018-86530
View Paper titled, Design and Development of an Unmanned Underwater Vehicle (UUV) in the Form of a Cuttlefish
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Topics: Design, Underwater vehicles, Biomimetics, Control algorithms, Data collection, Defense industry, Propellers, Propulsion, Robustness, Simulation models
Proceedings Papers

Development of a Passive Prosthetic Ankle With Slope Adapting Capabilities

Sandesh G. Bhat, Sangram Redkar, Thomas G. Sugar
Proc. ASME. IMECE2018, Volume 3: Biomedical and Biotechnology Engineering, V003T04A018, November 9–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2018-86593
https://doi.org/10.1115/IMECE2018-86593
View Paper titled, Development of a Passive Prosthetic Ankle With Slope Adapting Capabilities
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Topics: Artificial limbs, Design, Dynamics (Mechanics), Prostheses, Simulation