Jonathan Rogers
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View article: Simulation Analysis and Safety Risk Assessment of a Wind Turbine Blade Failure Event
Simulation Analysis and Safety Risk Assessment of a Wind Turbine Blade Failure Event Open
A common concern raised during the permitting of onshore wind farms is the potential risk posed by the release of failed turbine blades. Although there has been extensive analysis of blade throw risk based on simulated trajectories, there …
View article: Experimental evaluation of wind turbine wake turbulence impacts on a general aviation aircraft
Experimental evaluation of wind turbine wake turbulence impacts on a general aviation aircraft Open
Continued development of wind farms near populated areas has led to rising concerns about the potential risk posed to general aviation aircraft when flying through wind turbine wakes. There is an absence of experimental flight test data av…
View article: Radiological Source Term Estimation and Isotopic Identification With Parallel Log Domain Particle Filters
Radiological Source Term Estimation and Isotopic Identification With Parallel Log Domain Particle Filters Open
This paper presents a parallel log-domain particle filtering algorithm combined with gamma spectrum unfolding to perform localization, identification, and evaluation of multiple point sources of various isotopes in an environment with atte…
View article: Reply on RC1
Reply on RC1 Open
Abstract. Continued development of wind farms near populated areas has led to rising concerns about the potential risk posed to general aviation aircraft when flying through wind turbine wakes. There is an absence of experimental flight te…
View article: Reply on RC2
Reply on RC2 Open
Abstract. Continued development of wind farms near populated areas has led to rising concerns about the potential risk posed to general aviation aircraft when flying through wind turbine wakes. There is an absence of experimental flight te…
View article: Comment on wes-2024-51
Comment on wes-2024-51 Open
Abstract. Continued development of wind farms near populated areas has led to rising concerns about the potential risk posed to general aviation aircraft when flying through wind turbine wakes. There is an absence of experimental flight te…
View article: Experimental Evaluation of Wind Turbine Wake Turbulence Impacts on a General Aviation Aircraft
Experimental Evaluation of Wind Turbine Wake Turbulence Impacts on a General Aviation Aircraft Open
Continued development of wind farms near populated areas has led to rising concerns about the potential risk posed to general aviation aircraft when flying through wind turbine wakes. There is an absence of experimental flight test data av…
View article: Tau Theory-Based Flare Control in Autonomous Helicopter Autorotation
Tau Theory-Based Flare Control in Autonomous Helicopter Autorotation Open
A novel trajectory generation and control architecture for fully autonomous autorotative flare that combines rapid path generation with model-based control is proposed. The trajectory generation component uses optical Tau theory to compute…
View article: Real-Time Radiological Source Term Estimation for Multiple Sources in Cluttered Environments
Real-Time Radiological Source Term Estimation for Multiple Sources in Cluttered Environments Open
A particle filter algorithm is presented to estimate the position, strength, and cardinality of an unknown number of radioactive point sources in an obstacle-rich environment using count measurements. The algorithm addresses gaps in the pr…
View article: Motion Primitive Path Planning Under Uncertainty for High-Speed Vehicles
Motion Primitive Path Planning Under Uncertainty for High-Speed Vehicles Open
Motion primitives provide an approach to kinodynamic path planning that does not require online solution of the equations of motion, permitting the use of complex high-fidelity models. The path planning problem with motion primitives is a …
View article: Rapid Method for Computing Reachable Landing Distances in Helicopter Autorotative Descent
Rapid Method for Computing Reachable Landing Distances in Helicopter Autorotative Descent Open
No AccessTechnical NotesRapid Method for Computing Reachable Landing Distances in Helicopter Autorotative DescentBrian F. Eberle, Jonathan D. Rogers, Mushfiqul Alam and Michael JumpBrian F. EberleGeorgia Institute of Technology, Atlanta, G…
View article: Gender and Gender-Role Attitudes in Wage Negotiations: Evidence from an Online Experiment
Gender and Gender-Role Attitudes in Wage Negotiations: Evidence from an Online Experiment Open
Gender differences in wage negotiations is a popular explanation for why the gender gap in pay persists in the United States. In this study, we use data from an artificial wage negotiation experiment (N = 307) to examine the relationship b…
View article: Source Region Electromagnetic Pulse Planning Considerations
Source Region Electromagnetic Pulse Planning Considerations Open
The study focuses on source region electromagnetic pulse (EMP), and provides considerations regarding the impact from an EMP due to a low-altitude nuclear denotation.
View article: Toward an Electromagnetic Event Resilient Grid [Point of View]
Toward an Electromagnetic Event Resilient Grid [Point of View] Open
The motivation for writing this article is that the threat of a large-scale electromagnetic event having a negative impact on the electric grid is real. Whether human-caused, via the detonation of a nuclear device, or natural, via a high-i…
View article: Cable Estimation-Based Control for Wire-Borne Underactuated Brachiating Robots: A Combined Direct-Indirect Adaptive Robust Approach
Cable Estimation-Based Control for Wire-Borne Underactuated Brachiating Robots: A Combined Direct-Indirect Adaptive Robust Approach Open
In this paper, we present an online adaptive robust control framework for underactuated brachiating robots traversing flexible cables. Since the dynamic model of a flexible body is unknown in practice, we propose an indirect adaptive estim…
View article: Robust Control Synthesis and Verification for Wire-Borne Underactuated Brachiating Robots Using Sum-of-Squares Optimization
Robust Control Synthesis and Verification for Wire-Borne Underactuated Brachiating Robots Using Sum-of-Squares Optimization Open
Control of wire-borne underactuated brachiating robots requires a robust feedback control design that can deal with dynamic uncertainties, actuator constraints and unmeasurable states. In this paper, we develop a robust feedback control fo…
View article: The Koopman Expectation: An Operator Theoretic Method for Efficient Analysis and Optimization of Uncertain Hybrid Dynamical Systems
The Koopman Expectation: An Operator Theoretic Method for Efficient Analysis and Optimization of Uncertain Hybrid Dynamical Systems Open
For dynamical systems involving decision making, the success of the system greatly depends on its ability to make good decisions with incomplete and uncertain information. By leveraging the Koopman operator and its adjoint property, we int…
View article: Cable Estimation-Based Control for Wire-Borne Underactuated Brachiating Robots: A Combined Direct-Indirect Adaptive Robust Approach
Cable Estimation-Based Control for Wire-Borne Underactuated Brachiating Robots: A Combined Direct-Indirect Adaptive Robust Approach Open
In this paper, we present an online adaptive robust control framework for underactuated brachiating robots traversing flexible cables. Since the dynamic model of a flexible body is unknown in practice, we propose an indirect adaptive estim…
View article: Feedback Control for Autonomous Riding of Hovershoes by a Cassie Bipedal Robot
Feedback Control for Autonomous Riding of Hovershoes by a Cassie Bipedal Robot Open
Motivated towards achieving multi-modal locomotion, in this paper, we develop a framework for a bipedal robot to dynamically ride a pair of Hovershoes over various terrain. Our developed control strategy enables the Cassie bipedal robot to…
View article: Actuator Design and Flight Testing of an Active Microspoiler-Equipped Projectile
Actuator Design and Flight Testing of an Active Microspoiler-Equipped Projectile Open
Actively controlled gun-launched projectiles require a means of modifying the projectile flight trajectory. While numerous potential mechanisms exist, microspoiler devices have been shown to be a promising control actuator for fin-stabiliz…
View article: MIMU sensors for joint kinematic estimation: anatomical landmarking and frame correction
MIMU sensors for joint kinematic estimation: anatomical landmarking and frame correction Open
Thesis (Master, Mechanical and Materials Engineering) -- Queen's University, 2016-08-08 12:53:07.45
View article: Who's in Control of Your Control System? Device Fingerprinting for Cyber-Physical Systems
Who's in Control of Your Control System? Device Fingerprinting for Cyber-Physical Systems Open
Industrial control system (ICS) networks used in critical infrastructures such as the power grid present a unique set of security challenges.The distributed networks are difficult to physically secure, legacy equipment can make cryptograph…