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Aerospace, Volume 11, Issue 6

June 2024 - 86 articles

Cover Story: UAVs need to traverse multiple essential target points in the shortest possible time in smart city and modern military scenarios. Such missions require UAVs to improve mission execution efficiency by optimizing trajectories. Multi-waypoint trajectory optimization is one of the key technologies for UAVs to perform this kind of complex task, and this paper discusses this technical field in depth, covering the core contents of trajectory planning and time optimization. By adopting the advanced Constrained Parameterized Differential Dynamic Programming (C-PDDP) algorithm, the UAV is able to optimize the flight time of each trajectory segment while meeting the path constraints, which significantly shortens the mission time and improves mission efficiency. View this paper
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Articles (86)

  • Article
  • Open Access
2 Citations
1,687 Views
13 Pages

Decomposing Carbon Intensity Trends in China’s Civil Aviation: A Comprehensive Analysis from 1998 to 2019

  • Jinglei Yu,
  • Mengyuan Lu,
  • Kaifeng Wang,
  • Jinmei Ge,
  • Zan Tao,
  • Zheng Xu and
  • Longfei Chen

Carbon emission intensity is an important index reflecting an entity’s low-carbon competitiveness. This paper presents an extended logarithmic mean divisia index (LMDI) model to dissect carbon intensity within China’s civil aviation from...

  • Article
  • Open Access
3 Citations
3,079 Views
15 Pages

During the high-speed flight of a vehicle in the atmosphere, surface friction with the air generates aerodynamic heating. The aerodynamic heating phenomenon can create extremely high temperatures near the surface. These high temperatures impact mater...

  • Article
  • Open Access
1,880 Views
15 Pages

This study investigates the impact of wind shear on the flight dynamics of commercial aircraft where C* and C*U control laws are employed during the approach phase. Given the high incidence of flight accidents during takeoff and landing attributed to...

  • Article
  • Open Access
1,625 Views
14 Pages

When designing situational maps, selecting distinct and visually comfortable movement speeds for dynamic elements is an ongoing challenge for designers. This study addresses this issue by conducting two experiments to measure the human eye’s ab...

  • Article
  • Open Access
6 Citations
2,323 Views
25 Pages

Concept Evaluation of Radical Short–Medium-Range Aircraft with Turbo-Electric Propulsion

  • W. J. Vankan,
  • W. F. Lammen,
  • E. Scheers,
  • P. J. Dewitte and
  • Sebastien Defoort

Ambitious targets for the coming decades have been set for further reductions in aviation greenhouse gas emissions. Hybrid electric propulsion (HEP) concepts offer potential for the mitigation of these aviation emissions. To investigate this potentia...

  • Article
  • Open Access
1 Citations
4,274 Views
16 Pages

Water Recuperation from Regolith at Martian, Lunar & Micro-Gravity during Parabolic Flight

  • Dario Farina,
  • Hatim Machrafi,
  • Patrick Queeckers,
  • Christophe Minetti and
  • Carlo Saverio Iorio

Recent discoveries of potential ice particles and ice-cemented regolith on extraterrestrial bodies like the Moon and Mars have opened new opportunities for developing technologies to extract water, facilitating future space missions and activities on...

  • Article
  • Open Access
4 Citations
1,696 Views
19 Pages

This paper studies a rotor dynamic stall control method using an alternating current dielectric barrier discharge (AC DBD) plasma actuator through numerical simulation methods. The flow field evolution during a dynamic stalling process under the exci...

  • Article
  • Open Access
3 Citations
2,038 Views
24 Pages

The 4R-UAV project aims to develop aerodynamically efficient and environmentally friendly UAVs based on the 4R Circular Economy principle. In this study, the feasibility of the application of PFCDs (Passive Flow Control Devices) was investigated for...

  • Article
  • Open Access
5 Citations
1,881 Views
14 Pages

Mechanical joint interfaces are widely found in mechanical equipment, and their contact stiffness directly affects the overall performance of the mechanical system. Based on the fractal and elastoplastic contact mechanics theories, the K-E elastoplas...

  • Review
  • Open Access
6 Citations
3,864 Views
27 Pages

This paper identifies and classifies the essential constraints that must be addressed to allow U-space traffic autonomous guidance. Based on an extensive analysis of the state of the art in robotic guidance, physics of flight, flight safety, communic...

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Aerospace - ISSN 2226-4310