Offene Themen für Semester- und Abschlussarbeiten am Lehrstuhl für Hubschraubertechnologie

Bachelor / Master / Semester Thesis: Augmentation Concept Design for Helicopter Operations at Rotorcraft Simulation Environment (02.05.2019)

One of the most challenging aspects of helicopter operation is to land on a moving ship deck, because of

  1. Influence of landing zone on pilot performance.
  2. Limited field of view during landing maneuver.
  3. Degraded visual environment.

To achieve reduced pilot workload and increase flight safety during landing maneuver, a pilot fitted presentation of the outside world events and helicopter parameters are required.

This bachelor thesis / team project (Semesterarbeit) / Master Thesis aims to integrate multiple 2 dimensional concept designs for visual presentation of helicopter parameters. For the Human Machine Interface (HMI) concept design integration, an existing see-through Helmet Mounted Display can be used as reference. Displaying needed information in visual conformal manner - for instance “predictive parameters” - enables to design entirely novel pilot assistance systems. Design and integration may lead to a test campaign situated at the Rotorcraft Simulator Environment (ROSIE).

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Bachelor / Semester / Master Thesis: Capabilities of a Future Primary Flight Display Instrumentation for Helicopter In Flight Tasks (25.04.2019)

Background:

 

The project Helicopter Shipdeck Operations (HELIOP) is developing technologies with practical augmentation concepts that will help pilots to guarantee a straight navigation of a helicopter to its landing platform, a moving ship deck. To achieve reduced pilot workload and increase flight safety during flying towards the ship deck, a pilot fitted and intuitive presentation of the helicopter parameters and outside world events are required using displays in the cockpit.

Background:

This bachelor thesis / team project (Semesterarbeit) / Master Thesis focuses on an “out of the box” design, integration, and test of a new on-board system concept for helicopter in-flight operations. For the Human Machine Interface (HMI) integration of designed novel Primary Flight Display (PFD), an existing PFD design can be used as a starting point. Modifying displayed information and adding further needed information to the display using a well-documented design tool, offers a fast integration of new ideas for testing. Design and integration may lead to a test campaign situated at the Rotorcraft Simulator Environment (ROSIE).

 

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Master / Semester Thesis: Cost-Benefit Analysis of Helicopter Landing Gears for Small Helicopters and Electric Powered Vertical Takeoff and Landing Aircraft (01.04.2019)

Summary and Background:

So far, small and medium-sized helicopter are mainly equipped with skid landing gears because of their lower weight, lower complexity and cost-effectiveness compared to a wheeled or retractable landing gear. However, helicopters with skids have limited application areas and would gain greater flexibility with a wheeled landing gear. Wheeled landing gears are usually seen with helicopters from a size range of about 3 tons take-off weight and upwards. In contrast to skids it offers:

  • Easy maneuvering of the helicopter on the ground, taxiing to the launch site or hangar
  • A higher energy absorption at impact, since they are mostly equipped with oil-hydraulic dampers
  • The suspension design characteristic allow for a specific tune so that ground resonance is not favored or made possible

To enable the use of retractable landing gears in smaller helicopters, a very weight-saving and cost-effective integration is necessary. Landing geards are responsible, unless they are designed retractable, for a significantly aerodynamic resistance. They are therefore often considered in the hull retractable constructed, which, however, is associated with higher design effort and even more to development/production and maintenance costs. The objective of this thesis is to conduct a cost-benefit analysis of helicopter landing gears for small helicopters and electric powered vertical takeoff and landing aircraft.

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Bachelor / Master / Semester Thesis: Integration of Visualization Methods to Rotorcraft Simulation Environment ROSIE (22.02.2019)

Background

One of the most challenging aspects of helicopter operations is to land on a moving ship deck, because of
    1. Influence of landing zone on pilot performance.
    2. Limited field of view during landing maneuver.
    3. Degraded visual environment.
Pilot-in-the-Loop simulations at the Institute of Helicopter Technology are designed and executed in an original cockpit of a modern helicopter integrated to a dome projection scenery. The Rotorcraft Simulation Environment (ROSIE) offers Pilot-in-the-Loop simulations based on a realistic environment.

Scope of Work:

This bachelor thesis / team project (Semesterarbeit) / Master Thesis aims to integrate visualization of waves and/ or texture methods like Gerstmer waves for Helicopter Shipdeck Operations to the simulation environment.
For integrating waves and texture methods an existing ship model in OSG can be used. Design and integration may lead to a flight test campaign situated at the Rotorcraft Simulator Environment.

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Werkstudent(in) - Unterstützung eines Forschungsvorhabens zur Untersuchung eines Pilotenassistenzsystems für Helikopter Offshore Wind Missionen

Im Rahmen des 5. Luftfahrtforschungsprogrammes des Bundesministerium für Wirtschaft und Energie untersucht Airbus Helicopters zusammen mit weiteren Industrie- und Forschungspartnern ein erweitertes Helikopter-Pilotenassistenzsystem, das dedizierte Funktionalitäten für die speziellen Anforderungen von Hubschraubermissionen in Offshore-Windparkumgebungen bereitstellen soll. Ziel des Vorhabens ist es das Einsatzspektrum und die Flugsicherheit solcher Missionen zu erhöhen. Assistenzsysteme, die hierbei untersucht werden, umfassen u.a. bildgebende Sensoren, spezielle Hinderniswarnsensoren, Helmsichtsysteme, Datentransponder, Beleuchtung und Seilwinde. Als tatkräftige Unterstützung des Forschungsvorhabens suchen wir 1-2 Werkstudenten (ca. 10h pro Woche, genaue Stundenanzahl nach Vereinbarung), die in der Optronics Abteilung im Bereich Systemengineering bei folgenden Aufgaben mitarbeiten:

  • Erstellen des Systemdesigns
  • Vorbereitung, Planung und Auswertung von Testkampagnen (Simulator, Flugversuche)
  • Erstellen technischer Dokumentationen (Berichte, Testpläne, Konzeptbeschreibungen)
  • Sicherheits- und Zulassungsuntersuchungen
  • Identifikation einer IR Kameralösung für Flugversuche

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Bachelor / Master / Semester Thesis: Helicopter Fluid-Structure Coupling using preCICE (08.01.2019)

 

In the rotorcraft field, the aerodynamics and structural dynamics are mutually dependent. In general, the rotor performance and structural loads are modeled by means of comprehensive rotorcraft analysis tools. These software packages solve the blade motion and the rotor trim conditions. However, the aerodynamic phenomena such as the rotor wake or rotor inflow are predicted using lower-order aerodynamic models.

In order to improve the numerical accuracy of the fluid-structure interaction on the blade, the rotor comprehensive analysis tools are coupled with computational fluid dynamic tools that solve the 3D Navier-Stokes equations and can provide 3D advanced aerodynamic calculations.

This study aims to couple the comprehensive aeromechanics rotor code CAMRAD II with the finite volume CFD solver TAU. preCICE will be used as a coupling library for information exchange between the CFD (TAU) and CSD (CAMRAD II) solvers. Within the scope of this work, a preCICE adapter for TAU and for CAMRAD II will be developed. The consideration of the fluid structure interaction should increase the predicted accuracy of the solutions for the rotor performance and loads. In future investigations, the developed adapters will allow the investigations of adaptive azimuth-dependent structural deformations on a rotor (see Figure).

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Bachelor / Master / Semester Thesis: Design Challenges in Flight Test Environment – Matlab Tool Development (02.05.2019)

“Pilot in the Loop” flight tests are a challenging endeavor due to different aspects. In the environment of flight test design, execution, analysis and evaluation, most challenging aspects of helicopter flight tests are 

1. Flight test program design

2. Flight test analysis

3. Flight test data extraction

To achieve a multidimensional analysis of different quantitative and qualitative parameters it is important to get a “big picture” of the values shortly after each flight test.

This bachelor thesis / team project (Semesterarbeit) / Master Thesis aims to develop a matlab tool for analyzing flight test data under different quantitative and qualitative aspects. Existing flight test design and flight test setups, e.g. flight test to land safe on a ship deck, can be used for development and gathering experience in this field of investigation. Design and integration may lead to a flight test campaign situated at the Rotorcraft Simulator Environment (ROSIE) to prove your tool design.

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