1 citations · 5 across the 31 of their papers we have counts for
32 papers
Design and Control of a Multimodal Legged-Aerial Robot Through Separate Control Contraction Metrics
Kaushik Venkatesh Krishnamurthy, Eric Sihite, Alireza Ramezani +1
The integration of dynamic legged locomotion and aerial mobility offers versatility that is deterred by challenges in payload distribution, actuation, and the contrasting requireme…
Guiding Energy-Efficient Locomotion through Impact Mitigation Rewards
Chenghao Wang, Arjun Viswanathan, Eric Sihite +1
Animals achieve energy-efficient locomotion by their implicit passive dynamics, a marvel that has captivated roboticists for decades.Recently, methods incorporated Adversarial Moti…
Dynamic Quadrupedal Legged and Aerial Locomotion via Structure Repurposing
Chenghao Wang, Kaushik Venkatesh Krishnamurthy, Shreyansh Pitroda +5
Multi-modal ground-aerial robots have been extensively studied, with a significant challenge lying in the integration of conflicting requirements across different modes of operatio…
Crater Observing Bio-inspired Rolling Articulator (COBRA)
Adarsh Salagame, Henry Noyes, Alireza Ramezani +2
NASA aims to establish a sustainable human basecamp on the Moon as a stepping stone for future missions to Mars and beyond. The discovery of water ice on the Moon's craters located…
Thruster-Enhanced Locomotion: A Decoupled Model Predictive Control with Learned Contact Residuals
Chenghao Wang, Alireza Ramezani
Husky Carbon, a robot developed by Northeastern University, serves as a research platform to explore unification of posture manipulation and thrust vectoring. Unlike conventional q…
Estimation of Aerodynamics Forces in Dynamic Morphing Wing Flight
Bibek Gupta, Mintae Kim, Albert Park +3
Accurate estimation of aerodynamic forces is essential for advancing the control, modeling, and design of flapping-wing aerial robots with dynamic morphing capabilities. In this pa…
Optimal Trajectory Planning in a Vertically Undulating Snake Locomotion using Contact-implicit Optimization
Adarsh Salagame, Eric Sihite, Alireza Ramezani
Contact-rich problems, such as snake robot locomotion, offer unexplored yet rich opportunities for optimization-based trajectory and acyclic contact planning. So far, a substantial…
Quadratic Programming-Based Posture Manipulation and Thrust-vectoring for Agile Dynamic Walking on Narrow Pathways
Chenghao Wang, Eric Sihite, Kaushik Venkatesh Krishnamurthy +4
There has been significant advancement in legged robot's agility where they can show impressive acrobatic maneuvers, such as parkour. These maneuvers rely heavily on posture manipu…
Vision-Guided Loco-Manipulation with a Snake Robot
Adarsh Salagame, Sasank Potluri, Keshav Bharadwaj Vaidyanathan +4
This paper presents the development and integration of a vision-guided loco-manipulation pipeline for Northeastern University's snake robot, COBRA. The system leverages a YOLOv8-ba…
NMPC-based Unified Posture Manipulation and Thrust Vectoring for Fault Recovery
Adarsh Salagame, Shashwat Pandya, Ioannis Mandralis +3
Multi-rotors face significant risks, as actuator failures at high altitudes can easily result in a crash and the robot's destruction. Therefore, rapid fault recovery in the event o…
Reduced-Order Model-Based Gait Generation for Snake Robot Locomotion using NMPC
Adarsh Salagame, Eric Sihite, Milad Ramezani +1
This paper presents an optimization-based motion planning methodology for snake robots operating in constrained environments. By using a reduced-order model, the proposed approach…
ATMO: An Aerially Transforming Morphobot for Dynamic Ground-Aerial Transition
Ioannis Mandralis, Reza Nemovi, Alireza Ramezani +2
Designing ground-aerial robots is challenging due to the increased actuation requirements which can lead to added weight and reduced locomotion efficiency. Morphobots mitigate this…
Self-supervised cost of transport estimation for multimodal path planning
Vincent Gherold, Ioannis Mandralis, Eric Sihite +3
Autonomous robots operating in real environments are often faced with decisions on how best to navigate their surroundings. In this work, we address a particular instance of this p…
Enhanced Capture Point Control Using Thruster Dynamics and QP-Based Optimization for Harpy
Shreyansh Pitroda, Eric Sihite, Taoran Liu +6
Our work aims to make significant strides in understanding unexplored locomotion control paradigms based on the integration of posture manipulation and thrust vectoring. These tech…
Conjugate momentum based thruster force estimate in dynamic multimodal robot
Shreyansh Pitroda, Eric Sihite, Taoran Liu +6
In a multi-modal system which combines thruster and legged locomotion such our state-of-the-art Harpy platform to perform dynamic locomotion. Therefore, it is very important to hav…
Validation of Tumbling Robot Dynamics with Posture Manipulation for Closed-Loop Heading Angle Control
Adarsh Salagame, Eric Sihite, Alireza Ramezani
Navigating rugged terrain and steep slopes is a challenge for mobile robots. Conventional legged and wheeled systems struggle with these environments due to limited traction and st…
Quadratic Programming Optimization for Bio-Inspired Thruster-Assisted Bipedal Locomotion on Inclined Slopes
Shreyansh Pitroda, Eric Sihite, Kaushik Venkatesh Krishnamurthy +5
Our work aims to make significant strides in understanding unexplored locomotion control paradigms based on the integration of posture manipulation and thrust vectoring. These tech…
Enabling steep slope walking on Husky using reduced order modeling and quadratic programming
Kaushik Venkatesh Krishnamurthy, Eric Sihite, Chenghao Wang +4
Wing-assisted inclined running (WAIR) observed in some young birds, is an attractive maneuver that can be extended to legged aerial systems. This study proposes a control method us…
Conjugate Momentum-Based Estimation of External Forces for Bio-Inspired Morphing Wing Flight
Bibek Gupta, Eric Sihite, Alireza Ramezani
Dynamic morphing wing flights present significant challenges in accurately estimating external forces due to complex interactions between aerodynamics, rapid wing movements, and ex…
Optimization free control and ground force estimation with momentum observer for a multimodal legged aerial robot
Kaushik Venkatesh Krishnamurthy, Chenghao Wang, Shreyansh Pitroda +3
Legged-aerial multimodal robots can make the most of both legged and aerial systems. In this paper, we propose a control framework that bypasses heavy onboard computers by using an…
Capture Point Control in Thruster-Assisted Bipedal Locomotion
Shreyansh Pitroda, Aditya Bondada, Kaushik Venkatesh Krishnamurthy +8
Despite major advancements in control design that are robust to unplanned disturbances, bipedal robots are still susceptible to falling over and struggle to negotiate rough terrain…
Thruster-Assisted Incline Walking
Kaushik Venkatesh Krishnamurthy, Chenghao Wang, Shreyansh Pitroda +5
In this study, our aim is to evaluate the effectiveness of thruster-assisted steep slope walking for the Husky Carbon, a quadrupedal robot equipped with custom-designed actuators a…
Modeling and Controls of Fluid-Structure Interactions (FSI) in Dynamic Morphing Flight
Bibek Gupta, Eric Sihite, Alireza Ramezani
The primary aim of this study is to enhance the accuracy of our aerodynamic Fluid-Structure Interaction (FSI) model to support the controlled tracking of 3D flight trajectories by…
Reinforcement Learning-Based Model Matching to Reduce the Sim-Real Gap in COBRA
Adarsh Salagame, Harin Kumar Nallaguntla, Bardia Ardakanian +3
This paper employs a reinforcement learning-based model identification method aimed at enhancing the accuracy of the dynamics for our snake robot, called COBRA. Leveraging gradient…