Conceptual Design of Fueling Mechanism for an Unmanned Aerial Vehicle with Harvesting Liquid-Methane Capability on Titan

2020 ◽  
Author(s):  
Micaela Olivas ◽  
Mariah Gammill ◽  
Mostafa Hassanalian
Keyword(s):  
Conceptual Design ◽  
Unmanned Aerial Vehicle ◽  
Aerial Vehicle ◽  
Liquid Methane

scholarly journals Design of a Hand-Launched Solar-Powered Unmanned Aerial Vehicle (UAV) System for Plateau

2020 ◽  
Vol 10 (4) ◽  
pp. 1300 ◽  
Author(s):  
Xin Zhao ◽  
Zhou Zhou ◽  
Xiaoping Zhu ◽  
An Guo
Keyword(s):  
Low Temperature ◽  
Conceptual Design ◽  
Unmanned Aerial Vehicle ◽  
Design Method ◽  
Structure Design ◽  
Control Law ◽  
Trajectory Tracking Control ◽  
Plateau Area ◽  
Aerial Vehicle ◽  
Solar Powered

This paper describes our work on a small, hand-launched, solar-powered unmanned aerial vehicle (UAV) suitable for low temperatures and high altitudes, which has the perpetual flight potential for conservation missions for rare animals in the plateau area in winter. Firstly, the conceptual design method of a small, solar-powered UAV based on energy balance is proposed, which is suitable for flight in high-altitude and low-temperature area. The solar irradiance model, which can reflect the geographical location and time, was used. Based on the low-temperature discharge test of the battery, a battery weight model considering the influence of low temperature on the battery performance was proposed. Secondly, this paper introduces the detailed design of solar UAV for plateau area, including layout design, structure design, load, and avionics. To increase the proportion of solar cells covered, the ailerons were removed and a rudder was used to control both roll and yaw. Then, the dynamics model of an aileron-free layout UAV was developed, and the differences in maneuverability and stability of aileron-free UAV in plateau and plain areas were analyzed. The control law and trajectory tracking control law were designed for the aileron-free UAV. Finally, the flight test was conducted in Qiangtang, Tibet, at an altitude of 4500 m, China’s first solar-powered UAV to take off and land above 4500 m on the plateau in winter (−30 °C). The test data showed the success of the scheme, validated the conceptual design method and the success of the control system for aileron-free UAV, and analyzed the feasibility of perpetual flight carrying different loads according to the flight energy consumption data.

scholarly journals High altitude long endurance of unmanned aerial vehicle (UAV) ITB solar panel conceptual design

2021 ◽  
Vol 1173 (1) ◽  
pp. 012055
Author(s):  
M A Moelyadi ◽  
M A Sulthoni ◽  
M F Zulkarnain ◽  
M F Akbar ◽  
B K Assakandari
Keyword(s):  
High Altitude ◽  
Conceptual Design ◽  
Unmanned Aerial Vehicle ◽  
Solar Panel ◽  
Aerial Vehicle ◽  
Long Endurance

scholarly journals Conceptual Design and Multi-Disciplinary Computational Investigations of Multirotor Unmanned Aerial Vehicle for Environmental Applications

2021 ◽  
Vol 11 (18) ◽  
pp. 8364
Author(s):  
Vijayanandh Raja ◽  
Senthil Kumar Solaiappan ◽  
Parvathy Rajendran ◽  
Senthil Kumar Madasamy ◽  
Sunghun Jung
Keyword(s):  
Conceptual Design ◽  
Unmanned Aerial Vehicle ◽  
Environmental Conditions ◽  
Dynamic Pressure ◽  
Suitable Material ◽  
Flow Mixing ◽  
Fluid Properties ◽  
Aerial Vehicle ◽  
Microphysical Processes ◽  
Analytical Approaches

This study focuses on establishing a conceptual design for a multirotor unmanned aerial vehicle (UAV). The objectives of this octocopter are to reduce the number of flight cancelations and car accidents owing to low-visibility issues and to improve abnormal environmental conditions due to the presence of smoke. The proposed octocopter contains a convergent–divergent [CD] duct-based storage tank, which provides a platform to store saltwater and allows it to fly in foggy zones. Fine saltwater is sprayed from the octocopter and dispersed into the low clouds, thereby altering the vapor’s microphysical processes to break it up and improve visibility. The nature of the seawater and its enhanced fluid properties, due to the involvement of octocopter, creates the fluid flow mixing between atmospheric fluids and spraying particles, which increases the settling of foggy and smokey content groundward. For deployment, the conceptual design of the octocopter was initially constructed through analytical approaches. Additionally, three unique historical relationships were created. The standard engineering approaches involved in this work were stability analysis through MATLAB and fluid-property analysis through computational fluid dynamics (CFD) cum multiple reference frame (MRF) tools. The systematic model of this octocopter was developed by CATIA, and thereafter CFD and fluid–structure-interaction (FSI) analyses were computed, in ANSYS Workbench, on the octocopter for various environmental conditions. The aerodynamic forces on the drone, the enhancement of dynamic pressure by the presence of high amounts of rotors and nozzle sprayer, suitable material to resist aerodynamic loadings, and tests on the efficiency of the controller and its electronic components were investigated in detail. Finally, the proposed octocopter-based dynamic system was conceptually constructed.

A new tilt-arm transitioning unmanned aerial vehicle: Introduction and conceptual design

2020 ◽  
Vol 99 ◽  
pp. 105755 ◽  
Author(s):  
Chen Zeng ◽  
Rosa Abnous ◽  
Krushang Gabani ◽  
Souma Chowdhury ◽  
Victor Maldonado
Keyword(s):  
Conceptual Design ◽  
Unmanned Aerial Vehicle ◽  
Aerial Vehicle

Conceptual Design and Simulation of a Small Hybrid-Electric Unmanned Aerial Vehicle

2006 ◽  
Vol 43 (5) ◽  
pp. 1490-1498 ◽  
Author(s):  
Frederick G. Harmon ◽  
Andrew A. Frank ◽  
Jean-Jacques Chattot
Keyword(s):  
Conceptual Design ◽  
Unmanned Aerial Vehicle ◽  
Aerial Vehicle ◽  
Hybrid Electric
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