Many of the existing winged-insect species are extremely small (wing length≈ 0.3–4 mm);
they are referred to as miniature insects. Yet, until recently much of our knowledge about the …

Micro air vehicles (MAVs) have wide application prospects in environmental monitoring,
disaster rescue and other civil fields because of their flexibility and maneuverability …

Multidirectional approaches are essential for harnessing mechanical energy of random
varying directions. Traditional multidirectional technologies are difficult to effectively …

The phenomenon of dynamic soaring, as exhibited by soaring birds, has long been a
biological inspiration for aerospace and control engineers. If this fascinating phenomenon …

Vibration induced by human motions features a wide frequency spectrum and
spatiotemporal-variable directions. Yet, it is challenging to concurrently expand frequency …

To design a flapping-wing micro air vehicle (FWMAV), the hovering flight action of a beetle
species (Protaetia brevitarsis) was captured, and various parameters, such as the hindwing …

In this paper we show how higher-order averaging can be used to remedy serious technical
issues with the direct application of the averaging theorem. While doing so, we reconcile two …

Since the birth of bio-inspired flapping-wing micro air vehicles, a controversial topic, ie,
whether and to what extent a flapping wing can outperform conventional micro rotors, has …

Bird-like flapping-wing vehicles with a high aspect ratio have the potential to fulfill missions
given to micro air vehicles, such as high-altitude reconnaissance, surveillance, rescue, and …

Birds produce tail control torques to maintain their attitude by unfolding their tails in the wing
induced flow at hover. This mechanism is termed as wing-tail interaction. This study aims to …