scholarly journals UAS as flexible and innovative test platform for aircraft configuration and systems testing

2018 ◽  
Vol 233 ◽  
pp. 00001
Author(s):  
Dominique Paul Bergmann ◽  
Jan Denzel ◽  
Andreas Strohmayer
Keyword(s):  
Financial Risk ◽  
New Technologies ◽  
Aircraft Design ◽  
Flight Test ◽  
Scale Model ◽  
Efficient Test ◽  
Consumption Reduction ◽  
Test Platform ◽  
Cost Efficient ◽  
Configuration Changes

Today new technologies are available, which can be decisive for the success of future aircraft design. However, the gap between conventional designs and new visions often comes with a high financial risk. This complicates the integration of innovations significantly. The “Flightpath 2050 Europe’s Vision for Aviation” asks for new aircraft concepts and configurations to meet future requirements such as emission (CO2, NOx), noise and fuel consumption reduction. Scaled UAS are one way for getting new configurations and technologies into flight test while reducing the risk of exploding costs. UAS are cost-efficient test platform systems for two main tasks of future aircraft tests: Testing new configurations and advancing new aircraft systems and technologies from upstream research to TRL5-6. UAS can represent a connection between innovative research and flight demonstration. This paper focuses on the UAS as an innovative test platform and a tool for feasibility demonstration as well as its impact on new technologies and the implementation of innovative concepts. An example of a UAS test platform is given in the paper based on a 33,3% scale model of the e-Genius. It is developed as flying wind tunnel in order to better understand the effects of configuration changes on flight performance.

scholarly journals Innovative Scaled Test Platform e-Genius-Mod—Scaling Methods and Systems Design

Aerospace ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 20 ◽  
Author(s):  
Dominique Bergmann ◽  
Jan Denzel ◽  
Asmus Baden ◽  
Lucas Kugler ◽  
Andreas Strohmayer
Keyword(s):  
Financial Risk ◽  
New Technologies ◽  
Systems Design ◽  
Aircraft Design ◽  
Cost Effective ◽  
Unmanned Aircraft ◽  
Scale Model ◽  
Successful Implementation ◽  
Free Flight ◽  
Drag And Lift

Future aircraft design highly depends on the successful implementation of new technologies. However, the gap between conventional designs and new visions often comes with a high financial risk. This significantly complicates the integration of innovations. Scaled unmanned aircraft systems (UAS) are an innovative and cost-effective way to get new configurations and technologies in-flight. Therefore the Institute of Aircraft Design developed the e-Genius-Mod taking into account all relevant similitude requirements. It is a scale model of the electric motor glider e-Genius. Since the Reynolds number for the free-flight model cannot be adhered to, an airfoil was developed with lift-to-drag and lift-to-angle-of-attack courses reproducing the full-scale e-Genius flight characteristics. This will enable testing and assessment of new aviation technologies in a scaled version with an opportunity for free-flight demonstration in relevant environment.

scholarly journals Integrated collaboration capabilities for competitive aircraft design

2018 ◽  
Vol 233 ◽  
pp. 00015 ◽  
Author(s):  
Erik Baalbergen ◽  
Wim Lammen ◽  
Nikita Noskov ◽  
Pier-Davide Ciampa ◽  
Erwin Moerland
Keyword(s):  
Supply Chain ◽  
New Technologies ◽  
Aircraft Design ◽  
Aircraft Industry ◽  
Efficient Manner ◽  
Time To Market ◽  
Cost Efficient ◽  
Set Up ◽  
Short Time ◽  
The Eu

Airlines need to continuously extend and modernise their fleets, to keep up with the challenges of air-travel growth, competition, green, safe and secure operations, and growing passenger demands. As a result, the aircraft industry and its supply chain have to manage the growing needs for cost-efficient and complex aircraft in increasingly shorter time. Meanwhile they face their own challenges, such as certification and global competition. Quick evaluation of promising new technologies and concepts facilitates a short time to market. However, the required innovations are costly and risky, and require involvement of many experts from different disciplines and partners. Increasing the level of collaboration within the aircraft industry and its supply chain will be an essential step forward to deal with the challenges. Developing modern aircraft in an increasingly cost and time efficient manner in a collaborative set-up however requires step changes. The EU-funded Horizon2020 project AGILE has developed methods and tools for efficient and cross-organisation collaborative aircraft design, facilitating the rapid evaluation of new technologies and concepts at the early stages of aircraft development. This paper describes the capabilities and illustrates the successful integrated application of the capabilities by means of a collaborative aircraft rudder design evaluation.

scholarly journals New Technologies for Hull Assemblies in Shipbuilding

Naše more ◽  
2021 ◽  
Vol 68 (1) ◽  
pp. 48-57
Author(s):  
Myroslav Panchuk ◽  
◽  
Aleksander Sładkowski ◽  
Andrii Panchuk ◽  
Iryna Semianyk
Keyword(s):  
New Technologies ◽  
Production Capacity ◽  
Bonded Joints ◽  
Significant Saving ◽  
Shipbuilding Industry ◽  
Ship Construction ◽  
Consumption Reduction ◽  
Cost Efficient ◽  
Polluting Emissions ◽  
The Cost

The modern stage of shipbuilding industry development is characterized by an intense competition and the beginning of introduction of new materials and effective welding technologies, which change the appearance of this quite conservative field, at leading global shipbuilding enterprises. In particular, the application of laser technologies during ship construction decreases the cost of hull manufacturing by 30%, increases the production capacity by 10%, and reduces welding deformations by 30% compared to traditional welding methods. The application of composite materials for ship construction allows decreasing the ship weight by 10%, which leads to 1-7% decrease in fuel consumption, reduction of polluting emissions and significant saving of expenditures. Adhesion-bonded joints become more frequently used in shipbuilding, as they off er a possibility of joining different materials along with the advantages brought by the adhesion process itself, being reliable, cost-efficient and ensuring easy maintenance and repair.

Overview of Forming and Formability Issues for High Volume Aluminium Car Body Panels

2006 ◽  
Vol 519-521 ◽  
pp. 795-802 ◽  
Author(s):  
Dominique Daniel ◽  
Gilles Guiglionda ◽  
Pierre Litalien ◽  
Ravi Shahani
Keyword(s):  
New Technologies ◽  
High Volume ◽  
Production Lines ◽  
Particle Generation ◽  
Car Body ◽  
Conventional Technology ◽  
Sheet Products ◽  
Cost Efficient ◽  
Aluminum Panels ◽  
Fine Tune

Cost-efficient designs of aluminum autobody structures consist mainly of stampings using conventional technology. Progress in metallurgy and forming processes has enabled aluminum body panels to achieve significant market share, particularly for hoods. Fast bake hardening alloys with better hemming performance were developed for improved outer panel sheet products. Specific guidelines for handling and press working were established to form aluminum panels using similar schedules and production lines as steel parts. Stamping productivity was improved by optimization of the trimming process to reduce sliver/particle generation and resulting end-of-line manual rework. Both hemming formability and trimming quality not only depend on tooling setup but also on microstructural features, which govern intrinsic alloy ductility. Targets for the next high volume aluminum car body applications, such as roof panels and doors, require higher strength and/or better formability. The challenges of complex stampings can be met with optimized alloys and lubricants, with improved numerical simulation to fine-tune stamping process parameters, and with the introduction of new technologies. Warm forming was examined as a potential breakthrough technology for high volume stamping of complex geometries.

Development of a Low-Cost and Versatile Flight Test Platform

1997 ◽  
Vol 34 (1) ◽  
pp. 9-19 ◽  
Author(s):  
L. M. B. C. Campos ◽  
A. A. Fonseca ◽  
J. R. C. Azinheira ◽  
J. P. Loura
Keyword(s):  
Low Cost ◽  
Flight Test ◽  
Test Platform

Global IT Risk Management Strategies

2008 ◽  
pp. 285-298 ◽  
Author(s):  
Chrisan Herrod
Keyword(s):  
Risk Management ◽  
Financial Risk ◽  
Best Practice ◽  
New Technologies ◽  
Management Strategies ◽  
Regulatory Compliance ◽  
It Risk Management ◽  
Reputational Risk ◽  
Risk Management Strategies ◽  
It Risk

This chapter describes why it is important for organizations to develop and implement an IT risk management function and use best practice risk assessment methodologies that provide a standard to measure and assess risk within organizations. Information technology risk management is a significant new function that can help companies achieve world class IT service. IT risk management includes regulatory compliance, information security, disaster recovery, and project risks. IT risk management should be part of a company’s risk management strategy on an equal footing with financial risk management and reputational risk management. As the complexity of IT infrastructures increases and as businesses continue to rely upon the Internet as the communication backbone for e-business, the associated risks increase. For these reasons, deciding upon and implementing a risk management process and a standard methodology will greatly reduce the risks associated with the introduction of new technologies that support the mission of the business.

Cryptocurrencies vs global foreign exchange risk

2019 ◽  
Vol 20 (4) ◽  
pp. 330-351
Author(s):  
Calvin W. H. Cheong
Keyword(s):  
Foreign Exchange ◽  
Financial Risk ◽  
Cost Effective ◽  
Detailed Examination ◽  
Barriers To Entry ◽  
Alternative Mode ◽  
Foreign Exchange Risk ◽  
Content Type ◽  
Exchange Risk ◽  
Cost Efficient

Purpose This study aims to examine the properties of four major cryptocurrencies and how they can be used as a simpler alternative mode of hedging foreign exchange (FX) risks as compared to existing mainstream financial risk management techniques. Design/methodology/approach This study uses a combination of visual data representations and the classic Fama and Macbeth (1973) two-pass procedure regressions. Findings The findings show that cryptocurrencies can be a more effective hedge against FX risks as compared to other common hedging instruments and/or techniques such as gold or a diversified currency portfolio. Research limitations/implications The conclusions were arrived at based only on a small group of cryptocurrency, i.e. Bitcoin, Ethereum, Litecoin and Ripple. Other cryptocurrencies such as Dogecoin or ZCash might exhibit different properties. Practical implications Cryptocurrencies can be cost-effective and cost-efficient instruments that provide a solid hedge for investors and/or firms that are exposed to global FX volatility. Its ease of trade and virtually zero barriers to entry makes it an easily accessible alternative hedge instrument as compared to more complex items such as derivatives. Originality/value If cryptocurrencies are to be accepted into mainstream usage, a detailed examination of its various uses is necessary. In particular, as they are often touted to be the future of currency, its properties and price behavior relative to other mainstream financial instruments need to be well-understood, not only by finance professionals but also by laypersons.

Roll aerodynamic characteristics study of an unmanned aerial vehicle based on circulation control technology

2017 ◽  
Vol 233 (3) ◽  
pp. 871-882
Author(s):  
Kun Chen ◽  
Zhiwei Shi ◽  
Jiachen Zhu ◽  
Haiyang Wang ◽  
Junquan Fu
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Flight Control ◽  
Attitude Control ◽  
Aerodynamic Force ◽  
Flight Test ◽  
Scale Model ◽  
Maximum Efficiency ◽  
Control Technology ◽  
Circulation Control ◽  
Aerial Vehicle

To explore the control efficiency of circulation flow control technology, a circulation control actuator with an independent gas source has been designed and applied in roll attitude control of a small unmanned aerial vehicle. The circulation control devices are arranged at the two ends of the wing on an unmanned aerial vehicle scale model, the changes in aerodynamic force and aerodynamic moment caused by turning on the actuator are measured in a wind tunnel, and the flow field characteristics are analysed using particle image velocimetry technology. The flight control effect of the roll attitude is verified via a flight test. Experimental and flight test results show that the control of roll attitude can be achieved by turning on the circulation control actuator on one side, and the maximum efficiency that the circulation control generates is equivalent to 8° aileron deflection with production of a favorable yaw moment to achieve a coordinated turn. The circulation control actuator can increase lift and reduce drag when opened on both sides simultaneously. The maximum lift-to-drag ratio of the UAV increased from 5 to 9, and this approach can also suppress flow separation and delay stall at high angles of attack. The aileron or trailing edge flaps can be replaced with circulation control actuators, and the circulation control technology can also be applied to aerodynamic performance improvement and flight control in other types of aircraft.

Wind-tunnel tests of a tilt-rotor aircraft

2011 ◽  
Vol 115 (1167) ◽  
pp. 315-322 ◽  
Author(s):  
G. Gibertini ◽  
F. Auteri ◽  
G. Campanardi ◽  
C. Macchi ◽  
A. Zanotti ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Aircraft Design ◽  
Longitudinal Axis ◽  
Scale Model ◽  
Nonlinear Behaviour ◽  
Moment Coefficient ◽  
High Incidence ◽  
Aerodynamic Test ◽  
The Moment ◽  
Very High

Abstract A wide aerodynamic test campaign has been carried out on the tiltrotor aircraft ERICA at the Large Wind Tunnel of Politecnico di Milano by means of a modular 1:8 scale model in order to produce a dataset necessary to better understand the aerodynamic behaviour of the aircraft and to state its definitive design. The target of the tests was the measurement of the aerodynamic forces and moments in several different configurations and different attitudes. The test program included some conditions at very high incidence and sideslip angles that typically belong to the helicopter-mode flight envelope and measurements of forces on the tail and on the tilting wings. A large amount of data has been collected that will be very useful to refine the aircraft design. In general the aircraft aerodynamics do not present any critical problems, but further optimisation is still possible. From the viewpoint of drag in the cruise configuration, the sponsons of the landing gear seem to be worth some further design refinement since they are responsible for a 20% drag increase with respect to the pure fuselage configuration. On the contrary, the wing fairing has proved to work well when the aircraft longitudinal axis is aligned with the wind, providing just a slight drag increase. Two other interesting aspects are the quite nonlinear behaviour of the side force for the intermediate sideslip angles as well as the noticeable hysteresis in the moment coefficient at very high incidence angles.

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