This article presents an observer-based adaptive fuzzy finite-time attitude control strategy for
quadrotor unmanned aerial vehicles (UAVs). To estimate the information of angular velocity …

The downwash airflow of a multi-rotor unmanned aerial vehicle (UAV) in hover can improve
the penetration rate of droplets in the canopy of fruit trees, but the uncertain distribution of …

The aerodynamic performance of an isolated coaxial rotor in forward flight is analyzed by a
high-fidelity computational fluid dynamics (CFD) approach. The analysis focuses on the high …

Highlights•A new quadrotor pollinator is introduced.•The pollinator is designed, simulated,
and fabricated.•Modelling, control and simulation of the pollinator and pollination are …

Various quadrotor drones have been developed in recent years, mainly focusing on either
improving maximum thrust per platform area or flight maneuverability. Evidently, achieving …

An approximate closed‐form optimal control design is proposed for the flight control of
quadrotor unmanned aerial vehicles. The nonlinear dynamic equation is rewritten as a …

Coaxial multirotors, characterized by overlapping rotors, represent a common solution to
increasing payload capacity while maintaining a compact platform size. However, the …

Agrivoltaics power generation is the simultaneous use of agricultural land and photovoltaic
panels. In such cases, the panels are placed more sparsely, compared to conventional …

This paper proposes a systematic approach for identifying the translational dynamics of a
novel two-layer octocopter. Initially, we derive the non-linear theoretical dynamic model of …

The carbon fiber-reinforced plastic (CFRP) tubular structure is suitable for aircraft and
aerospace applications requiring strong axial strength and moderate thermal expansion …