From the 1 of 5 linked papers with an AI index.
5 papers
Write-Safe Flow Field Mapping under Ambiguous Onboard Sensing and Localization Drift
Linhao Jin, Qimin Feng, Peter Gunnarson +1
The paper proposes a conservative fusion framework that predicts a local velocity patch and a write-safety score to prevent unsafe updates when mapping fluid flow with mobile robot…
Inertial effects on the mechanical efficiency of a semi-passive oscillating hydrofoil energy harvester
Zihan Zhang, Qimin Feng, Yuanhang Zhu +1
Oscillating-foil-based energy harvesters have demonstrated strong potential for low-speed hydrokinetic energy extraction; however, the actuator-level mechanical energy balance asso…
Passive Phase-Oriented Impedance Shaping for Rapid Acceleration in Soft Robotic Swimmers
Qimin Feng, Orion A. Roberts, Qiang Zhong
Rapid acceleration and burst maneuvers in underwater robots depend less on maintaining precise resonance and more on force--velocity phase alignment during thrust generation. In th…
Lift reversal from vortex-surface phase coupling in a heaving foil near a free surface
Qimin Feng, Tianjun Han, Qiang Zhong
Classical descriptions of flapping propulsion near a free surface emphasize the energetic penalties of wave generation, treating the interface primarily as an energy sink. Here, we…
Wavenumber affects the lift of ray-inspired fins near a substrate
Yuanhang Zhu, Leo Liu, Tianjun Han +4
Rays and skates tend to have different fin kinematics depending on their proximity to a ground plane such as the seafloor. Near the ground, rays tend to be more undulatory (high wa…