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Viewing 1 to 19 of 19
1992-07-01
Technical Paper
921257
Y. Ollivier, X. Labourdette, M. Diener, V. Menendez
This paper synthesizes the shoulder joint development activities performed in the frame of the European EVA Space Suit System (ESSS) programme. The shoulder joint belongs to the anthropomorphic enclosure encompassing the crewmember, protecting him against space environment while ensuring him adequate mobility, dexterity and visibility. A conceptual trade-off selected two candidates likely to fulfil the stringent shoulder joint requirements: an all-soft joint and a hybrid “rolling convolute”. Representative pressurized breadboards were designed, manufactured and tested. The tests addressed both intrinsic performance, via torque/flexion hysteresis curves and ergonomic characteristics via a “man in the loop” evaluation, involving a suit demonstrator. Tests results completed the trade-off, thus enabling the industrial team to formulate recommendations and propose further development studies.
1993-07-01
Technical Paper
932099
D. Hornet, Y. Ollivier
In the frame of the development of the European EVA Suit, a complete trade-off was conducted to select the lower torso architecture. This study, performed under an ESA contract, included a formal trade-off dealing with all cost and programmatic impacts together with a technical assessment based on man rated underwater evaluations and analysis. The candidate architectures were: the European baseline including 2 hip and 2 thigh bearings, the Russian like soft ORLAN-DMA, a soft lower torso including 2 thigh bearings and another soft one including 2 calf bearings. The idea was to compare the different design performances without having necessarily developed the 4 pressurized lower torsos and then also to gain experience on predicting methods for such ergonomic/kinematic studies. The trade-off was based on the manned underwater evaluation of ergonomical suit simulators (wet suit concept), supported by the 1-g pressurized evaluation of the Russian ORLAN-DMA and CAD-CAM kinematic analysis.
2011-05-18
Article
The 3350-nmi midsized business jet is taking off with new Pratt & Whitney engines, an interior designed by BMW Designworks, Rockwell Collins cabin management, and Honeywell avionics.
2008-10-18
Article
Fuel conservation took center stage at the National Business Aviation Association Convention as vendors attempted to hold onto sharp growth in the business jet market.
2014-11-05
Article
Engineering teams take the first step toward what could become a full demonstration program with the potential to “shape the future of combat aerospace in Europe.”
2015-01-30
Article
Unveiled at Dassault’s Bordeaux-Merignac the 8X will offer the greatest range and the longest cabin in the Falcon line, along with the most extensive selection of cabin configurations.
2015-04-10
Article
The Indian Government recently announced its intention to finalize the acquisition of 36 Rafale fighter aircraft from Dassault Aviation at conditions necessary to meet the security needs of India. Dassault Aviation, which has been a supplier to the Indian Air Force for more than 60 years, is grateful for the opportunity to pursue and extend their partnership, said Eric Trappier, Chairman and CEO of Dassault Aviation. 
2013-10-24
Article
Pratt & Whitney AeroPower has been selected to provide its APS500[D] auxiliary power unit (APU) for Dassault Aviation's Falcon 5X business jet. Pratt & Whitney AeroPower is partnering with Safran Microturbo for this project.
2014-01-08
Article
Dassault Aviation has built into its upcoming Falcon 5X flight controls and displays experience not only from the Falcon family of business jets but also from the Rafale multi-role combat fighter.
2014-02-26
Article
The debate continues as to where exactly the balance should be between systems that have a high degree of autonomous functionality and the need for pilots to retain a wider 3-D perspective, especially if the computer software is overwhelmed by conflicting data being input from damaged or non-functioning sensors.
2016-10-21
Article
France's Dassault Aviation and India's Reliance Group announced in late September 2016 the creation of a joint venture (JV) in India called Dassault Reliance Aerospace. With this announcement came news that the Dassault Reliance Aerospace JV will be a key player in the execution of offset obligations as a part of the 36 Rafale fighter jet purchase agreement that was signed between France and India on September 23, 2016 and is valued at around €7.87 billion, or about Rs. 59,000 crore.
2016-09-27
Article
The SAE AMS3144-qualified Aerocron primer is chrome-free and water-based, and it reduces emissions as well as waste-treatment requirement, according to PPG.
2014-09-16
Journal Article
2014-01-2227
Thierry Cornilleau, Pierre Linard, Paul Moxon, Christopher Nicholas
Abstract ECOA is an active software architecture research programme conducted by the French Republic and United Kingdom. It is one product of the recent Defence and Security Co-operation Treaty signed between the two nations. This paper provides an overview of the programme goals and progress as well as an introduction to the technology being developed and comparison to related initiatives. The goal of the ECOA programme is to define an open software architecture that enables collaborative development of mission system software. The ECOA programme is needed to reduce development and lifecycle costs of future military air programmes. For this reason the programme has a specific focus on combat-air mission systems but the underlying technology is general purpose, applying to multiple military and civil domains. At present, the programme has defined a concept, delivered a set of initial technical standards and produced a joint demonstrator to validate the technology developed.
2011-10-18
Technical Paper
2011-01-2548
Christel Seguin, Pierre Bieber, Eckard Boede, Marco Bozzano, Matthias Bretschneider, Antonella Cavallo, Johann Deneux, Jean-Pierre Heckmann, Oleg Lisagor, Marion Morel, Chris Papadopoulos, Laurent Sagaspe, Valerie Sartor, Rémi Delmas
Model Based Safety techniques have been developed for a number of years, though the models have not been customised to help address the safety considerations/ actions at each refinement level. The work performed in the MISSA Project looked at defining the content of “safety models” for each of the refinement levels. A modelling approach has been defined that provides support for the initial functional hazard analysis, then for the systems architectural definition level and finally for the systems implementation level. The Aircraft functional model is used to apportion qualitative and quantitative requirements, the systems architectural level is used to perform a preliminary systems safety analysis to demonstrate that a system architecture can satisfy qualitative and quantitative requirements.
2017-08-01
Article
All the major business jet manufacturers have used this relatively quiet period, following the post-2008 slump, to invest in the design and development of new products.
2001-07-09
Technical Paper
2001-01-2155
Hélène Fourquet, Jean-Pierre Cimino, Alain Genty, André Rolland, Dominique Carme, Raphaël Bianconi
Pilots in fighter aircraft can be subjected to high temperatures during ground operating phases in hot climate conditions, especially if APU mode is not available. A Cooling Generation System (CGS) used with a protective thermal garment for fighter aircraft pilots has been developed that allows cooling of the pilot in the cockpit. The unit is designed to operate under worst case conditions and requires only that the pilot plugs in upon entering the cockpit. A liquid circulates inside the garment that covers the pilot’s torso, arms and head (area under the helmet). The temperatures are defined to guarantee the user’s comfort. The pilot can adjust the power delivered by the CGS, i.e. the temperature of the circulating fluid, up to a maximum cooling capacity of 400 W. The CGS design is based on a small variable speed compressor with a brushless motor, which is the outcome of a dedicated development, and a custom-made evaporator and condenser for maximum efficiency and minimum volume.
2015-06-15
Technical Paper
2015-01-2158
Tatsuma Hyugaji, Shigeo Kimura, Haruka Endo, Mitsugu Hasegawa, Hirotaka Sakaue, Katsuaki Morita, Yoichi Yamagishi, Nadine Rehfeld, Benoit Berton, Francesc Diaz, Tarou Tanaka
Coating has been recently considered as having good potential for use in preventing in-cloud icing on the leading edge of the lifting surfaces of an aircraft in cold climates. In terms of wettability, a coat may exhibit hydrophobicity or hydrophilicity depending on its specific properties. The same applies to the ice adhesion strength, which may be either high or low. It is thus necessary to determine which type of anti-icing or de-icing coat would be appropriate for a particular application in order to fully utilize its specific properties. Notwithstanding, a coat is incapable of preventing ice accretion by itself, and a perfect icephobic coat is yet to be developed. Coating is also sometimes applied to the surfaces of electrical heaters and load-applying machines to enable them to function more effectively and use less energy. The coating used for an electric heater, for instance, should be hydrophobic because of the need for rapid removal of molten water from the surface.
1993-09-01
Technical Paper
931770
Sylvain J. Da Costa
The Flexible Assembly Cell for Aeronautical Industry (FACAI) is described. The cell was developed in order to take advantage of the benefit of hard automation while retaining the flexibility of the manual assembly system it replaces. A description of both the generic equipment, selected to be non-specific to both the process and the assemblies intended to be built, is provided. In addition, all specific hardware, including end-effectors and fastener distribution systems are described, along with the rationale for their choice. The reasons for the modular design are explained. The means by which the flexibility goal was achieved are outlined. The demonstrated ability of the cell to install a wide range of fasteners (solid rivets, lockbolts, Hilocks) without the need for manual reconfiguration is detailed. The means by which both the quality and safety goals were attained are explained.
1999-10-06
Technical Paper
1999-01-3427
Kevin Russell, Alvin Ng, Sylvain da Costa
Avcorp Industries Inc. recognized the need to reduce assembly labor costs in order to stay competitive with global competition. After two years of research and investigation it was determined that a joint project with Dassault Aviation provided the most viable solution. The key elements of the technology developed by Dassault were its high flexibility and rapid payback of capital investment. This paper describes the system and the application. The structure’s design and robotic system design were performed in parallel. A number of design challenges had to be overcome. Many of these issues encountered were common to any automated assembly application. By covering these challenges Avcorp was able to introduce automated assembly at a level that had typically been previously attained exclusively by much larger enterprises. The robotic system consists of two anthropomorphic robots, which work both individually and in tandem.
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