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Ashutosh Simha

4 accepted papers

2021

Hermes - Wind Energy Harvesting Wireless System for Sensing AoA and Wind Speed

RA-L 2021

In this letter, we present Hermes - a novel, low-cost, wireless, batteryless, energy harvesting system for aerial vehicles for sensing wind speed and Angle of Attack (AoA) concurrently. Hermes comprises a set of piezoelectric films which flutter due to incoming wind and the characteristics of this a

Cited by 4SourceScholar
2020

A Flapped Paddle-Fin for Improving Underwater Propulsive Efficiency of Oscillatory Actuation

RA-L 2020

This letter presents a novel design of an oscillatory fin for thrust-efficient and agile underwater robotic locomotion. We propose a flat paddle-fin comprising a set of overlapping cascaded soft flaps that open in one half of the stroke cycle and close in the other. Consequently, asymmetry in the la

Cited by 12SourceScholar
2020

Iterative Learning based feedforward control for Transition of a Biplane-Quadrotor Tailsitter UAS

ICRA 2020poster

This paper provides a real time on-board algorithm for a biplane-quadrotor to iteratively learn a forward transition maneuver via repeated flight trials. The maneuver is controlled by regulating the pitch angle and propeller thrust according to feedforward control laws that are parameterized by poly…

Cited by 19SourceScholar
2019

Nonlinear Orientation Controller for a Compliant Robotic Fish Based on Asymmetric Actuation

ICRA 2019poster

Compliant fish-like robots are being developed as efficient and dependable underwater observation platforms with low impact on the observed environment. Orientation control is an essential building block to achieve autonomy for those vehicles. So far, the major focus has been on rigid tails or on fl…

Cited by 9SourceScholar