This paper presents a relaxed definition of hover for multicopters with propellers pointing in
a common direction. These solutions are found by requiring that the multicopter remain …

In this paper, investigation was made into the design, theoretical study, numerical modelling
and experiment of a novel flap** wing rotor for micro aerial vehicles (MAV). Attention was …

This paper details the development of a nano-scale (> 15 cm) robotic samara, or winged
seed. The design of prototypes inspired by naturally occurring geometries is presented …

This paper presents a comparative analysis in terms of energy required by an artificial probe
to penetrate soil implementing two different strategies: a straight penetration movement and …

In this paper, we present a study on peculiar plant root movements, named circumnutations,
adopted by plants as an efficient strategy to penetrate the soil and implemented in robotic …

Motivated by the flight ability of severely underactuated rotorcraft, we introduce a
transformable quadcopter—SplitFlyer Air. The novel vehicle consists of two bicopter …

Among small rotorcraft, the use of multiple compact rotors in a mechanically simple design
leads to impressive agility and maneuverability but inevitably results in high energetic …

Unmanned aircraft systems (UAS s) have drawn increasing attention recently, owing to
advancements in related research, technology, and applications. While having been …

In this work, we simulate the motion of a quadcopter when two symmetric propellers fail and
the full thrust is gradually decreasing on each of the remaining propellers. Applying a control …