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math.DS2022
Development of an Efficient Formulation for Volterra's Equations of Motion for Multibody Dynamical Systems
Mohammad Hussein Yoosefian Nooshabadi, Hossein Nejat Pishkenari
In this paper, we present an efficient form of Volterra's equations of motion for both unconstrained and constrained multibody dynamical systems that include ignorable coordinates.…
math.DS2019
Optimal time Quadcopter Descent Trajectories Avoiding the Vortex Ring and Autorotation States
Amin Talaeizadeh, Duarte Antunes, Hossein Nejat Pishkenari +1
It is wellknown that helicopters descending fast may enter the so called VRS, a region in the velocity space where the blade's lift differs significantly from regular regions. This…