Design methodology for hybrid (VTOL + Fixed Wing) unmanned aerial vehicles

@inproceedings{Kamal2018DesignMF,
  title={Design methodology for hybrid (VTOL + Fixed Wing) unmanned aerial vehicles},
  author={Ashraf M. Kamal and Alex Ramirez-Serrano},
  year={2018}
}
Transitional aircraft are systems capable of flying as fixed-wing aircraft or rotorcraft as well as transition between these modes when desired/needed. Operation in helicopter mode makes the aircraft possible to Vertical Take-off and Landing (VTOL), fly at low speeds in any direction (e.g., forward and sideways), hover and perform some difficult maneuvers. In the fixed-wing mode, due to stall problems on the lifting surfaces, low speeds are not possible. However, the aircraft can make a… 
Aerodynamic Analysis of a Fixed Rotor Hybrid VTOL UAV in Transitional Flight Using CFD
Hybrid VTOL (HVTOL) UAVs are an increasingly desirable platform due to their ability operate in both hover and straight and level flight envelopes. These UAVs have a unique flight regime known as
Automatic control of convertible fixed-wing drones with vectorized thrust
This paper proposes a control design strategy, encompassing trajectory tracking and path following, for a category of convertible aircraft with fixed wings and vectorized thrust, as exemplified by
Development of a hybrid vertical take-off and landing unmanned aerial vehicle for maritime application
TLDR
This paper covers the selection analysis of different vertical take-off and landing (VTOL) airframe as well as mechanical and electronic hardware design with the intention of increasing flight efficiency for surveillance purposes on wide sea area.
Propulsion System Drag Reduction for Vertical Takeoff and Land (VTOL) Unmanned Aerial Vehicle (UAV)
Vertical Takeoff and Land (VTOL) is a new technology in the UAV field. Separate lift and thrust (SLT) was the most simplistic design of VTOL UAV. However, during the forward cruising flight phase,
Comprehensive Optimization of the Unmanned Tilt-Wing Cargo Aircraft With Distributed Propulsors
TLDR
With the proposed method, it is possible to directly translate the top-level design requirements into the design scheme with the optimal specific system performance at the very initial aircraft design stage, thereby greatly shortening the development cycle.
STRUCTURAL ANALYSIS OF HYBRID VTOL CONFIGURATION
Maximizing flying qualities of a UAV is not a new topic in the aeronautical branch. Therefore, there is a significant amount of growing interest shown by researchers to integrate the flying mechanism
Design and Development of a Magnetic Anomaly Detection Unmanned Aerial Vehicle
This work focuses on the design and development of a new canard fixed-wing vertical take-off and landing (VTOL) unmanned aerial vehicle (UAV) to be used by the Canadian Air Force to conduct Magnetic
Air taxi flight performance modeling and application
TLDR
This paper aims at determining flight performance by considering state-of-the-art battery characteristics of electric vertical take-off and landing aircraft and reveals a range of around 115 km for vectored thrust eVTOL, around 70 km for lift & cruise eVTola, and around 50 km for multicopter eVTol.
Design of fixed-wing unmanned aircraft for monitoring
TLDR
From the results of the fixed-wing drone design that has been done, it is found that the prototype aircraft can fly according to the control given and can also communicate with the ground by sending position data obtained from the GPS module.
System Modeling and Simulation of an Unmanned Aerial Underwater Vehicle
TLDR
Only a single set of aerial rotors with switching propulsion abilities are designed as driving components, and then a compound multi-model method is investigated to achieve good performance of the cross-medium motion.
...
...

References

SHOWING 1-10 OF 37 REFERENCES
Design of a Commercial Hybrid VTOL UAV System
TLDR
The preliminary design process of such a capable civilian UAV system, namely the TURAC VTOL UAV, is reviewed, which is aimed to have both vertical take-off and landing and Conventional Take-offs and Landing (CTOL) capability.
Tilt duct vertical takeoff and landing uninhabited aerial vehicle concept design study
¨A new autonomously controlled tilt-duct vertical takeoff and landing uninhabited aerial vehicle concept is proposed. This design combines the vertical flight capability of a helicopter and forward
Designing Unmanned Aircraft Systems: A Comprehensive Approach
TLDR
Designing Unmanned Aircraft Systems: A Comprehensive Approach, Jay Gundlach investigates all elements of UAS design, including architectural options, and design drivers across diverse systems classes and provides a solid understanding of the end-to-end unmanned aircraft system.
Rapid Sizing Methodologies for VTOL UAVs
TLDR
This paper will present methodologies used for the rapid sizing of a vertical takeoff and landing (VTOL) unmanned aerial vehicle (UAV) and investigates the trends among VTOL aircraft of similar types, using powerplant installations and approaches as means to group aircraft.
Design and wind tunnel tests of a tiltwing UAV
Within the EU and North Rhine-Westphalia funded research project AVIGLE, the Institute of Flight System Dynamics develops a multi functional flight platform in a tiltwing configuration. The different
Nonlinear adaptive control of a new configuration of rotary wing unmanned aerial vehicle
TLDR
It is shown that the vehicle's errors in position, pitch, roll and yaw angles are all ultimately driven to zero under parametric uncertainties.
The joined wing - An overview
The joined wing is a new type of aircraft configuration which employs tandem wings arranged to form diamond shapes in plan view and front view. Wind-tunnel tests and finite-element structural
Adaptive nonlinear robust Control of a Novel Unconventional Unmanned Aerial Vehicle
TLDR
The asymptotic stability of the controller in the presence of unknown disturbance is analytically demonstrated and a control law enabling the UAV to accomplish tracking missions, alongside an adaptive law estimating unknown disturbances are derived.
Insights into Airframe Aerodynamics and Rotor-on-Wing Interactions from a 0.25-Scale Tiltrotor Wind Tunnel Model
A recent experimental investigation into tiltrotor aerodynamics and acoustics has resulted in the acquisition of a set of data related to tiltrotor airframe aerodynamics and rotor and wing
Erica: The European Tiltrotor. Design and Critical Technology Projects
After 60/70 years of development the rotorcraft technology is mature, today, for a dramatic change of the vehicle scenarios and perspectives. Helicopters are more and more competitive, comfortable,
...
...