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Aerospace, Volume 7, Issue 5

May 2020 - 17 articles

Cover Story: Compared to their chemical counterpart, electric propulsion devices are well suited for nano- and micro-satellites (1–200 kg) operations. Among all technologies, Hall thrusters currently offer the highest thrust density and thrust-to-power ratio. Nonetheless, it is known that low-power Hall thrusters exhibit performances below mid- and high-power devices due to a larger surface-to-volume ratio. Examination of small Hall thruster current density distribution, ion current, and ion energy content in the far field is essential to verify whether the size also has an impact on plasma plume characteristics. Here measurement outcomes around 100 W are compared to higher power Hall thrusters far-field plume characterizations. View this paper.
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Articles (17)

  • Article
  • Open Access
10 Citations
7,527 Views
20 Pages

System Operation of Regional UTM in Taiwan

  • Chin E. Lin,
  • Pei-Chi Shao and
  • Yu-Yuan Lin

The hierarchical unmanned aerial systems (UAS) traffic management (UTM) is proposed for UAS operation in Taiwan. The proposed UTM is constructed using the similar concept of ATM from the transport category aviation system. Based on the airspace being...

  • Article
  • Open Access
28 Citations
7,490 Views
13 Pages

Structural Health Monitoring (SHM), defined as the process that involves sensing, computing, and decision making to assess the integrity of infrastructure, has been plagued by data management challenges. The Industrial Internet of Things (IIoT), a su...

  • Article
  • Open Access
15 Citations
5,896 Views
20 Pages

Digital avionic solutions enable advanced flight control systems to be available also on smaller aircraft. One of the safety-critical segments is the air data system. Innovative architectures allow the use of synthetic sensors that can introduce sign...

  • Article
  • Open Access
27 Citations
5,345 Views
26 Pages

The objective of this research project is divided in four parts: (1) to design a piezoelectric actuator-based de-icing system integrated to a flat plate experimental setup and develop a numerical model of the system with experimental validation, (2)...

  • Article
  • Open Access
7 Citations
5,592 Views
12 Pages

Unsteady Lift Prediction with a Higher-Order Potential Flow Method

  • Julia A. Cole,
  • Mark D. Maughmer,
  • Goetz Bramesfeld,
  • Michael Melville and
  • Michael Kinzel

An unsteady formulation of the Kutta–Joukowski theorem has been used with a higher-order potential flow method for the prediction of three-dimensional unsteady lift. This study describes the implementation and verification of the approach in de...

  • Article
  • Open Access
15 Citations
6,730 Views
27 Pages

The development of projectile guidance requires consideration of a large number of possible flight scenarios with various system parameters. In this paper, the Monte-Carlo parametric study for a 160 mm artillery rocket equipped with a set of 34 small...

  • Article
  • Open Access
10 Citations
6,947 Views
21 Pages

Cabin Layout Optimization for Vibration Hazard Reduction in Helicopter Emergency Medical Service

  • Aykut Tamer,
  • Vincenzo Muscarello,
  • Giuseppe Quaranta and
  • Pierangelo Masarati

Helicopter Emergency and Medical Service (HEMS) vehicles require a specially configured cabin that supports the quick transport of a rescue team to the site of an emergency and return of patients back to a full capacity hospital, while sustaining the...

  • Article
  • Open Access
24 Citations
7,546 Views
21 Pages

The 100 W-class ISCT100-v2 Hall Thruster (HT) has been characterized in terms of far-field plume properties. By means of a Faraday Cup and a Retarding Potential Analyzer, both the ion current density and the ion energy distribution function have been...

  • Article
  • Open Access
16 Citations
25,334 Views
19 Pages

The development of hybrid rockets offers excellent opportunities for the practical education of students at universities due to the high safety and relatively low complexity of the rocket propulsion system. During the German educational program Stude...

  • Article
  • Open Access
24 Citations
6,148 Views
20 Pages

The interest in electric and hybrid electric power systems for aircraft and rotorcraft has been increasing significantly in recent years. However, advanced simulation tools still need to be developed to exploit the potentiality and address the comple...

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Aerospace - ISSN 2226-4310