Streamlining cross-organisation product design in aeronautics

Author(s):  
Erik Baalbergen ◽  
Johan Kos ◽  
Clément Louriou ◽  
Cédric Campguilhem ◽  
James Barron

Aircraft development programmes generally involve collaboration in engineering between different organisations, in order to develop innovative products efficiently, to involve necessary skills from the supply chain, and to spread risks and costs among the partners. The size and complexity of the programmes, the market demands and the contexts of competition all require the collaboration to be effective and efficient. Advances in information technology provide new capabilities to support collaborative design but a step change is needed to harness and coordinate this support to be effective and efficient. The extended enterprises in which the collaborative engineering activities take place span the partner organisations. Engineers wishing to cooperate are however facing security constraints. For example, technical security measures such as firewalls and proxy servers hamper smooth exchange of engineering data and seamless execution of collaborative workflows. The restrictions assist organisations in protecting their assets and in remaining compliant with legislation and regulations. From a programme technical point of view, effective and efficient collaboration in this world full of security and the resulting connectivity constraints is a major challenge. This paper describes the usefulness, necessity and challenges of collaboration between multi-disciplinary specialists in aerospace engineering. It presents the ‘Brics’ technology that supports the realisation of cross-organisation collaborative workflows. The technology supports aircraft manufacturers and their supply chains in facing the challenges and in performing analyses of innovative aircraft designs collaboratively. This technology has emerged from past research projects, and has been further developed and successfully demonstrated in the Thermal Overall Integrated Conception of Aircraft project, a research and technology development project carried out in the Seventh Framework Programme funded by the European Union. The developed technology is illustrated in the context of a multi-partner analysis and optimisation study, which has been conducted as part of a pylon design that is subject to thermal constraints.

Author(s):  
Takeshi Yamamoto ◽  
Kazuo Shimodaira ◽  
Seiji Yoshida ◽  
Yoji Kurosawa

The Japan Aerospace Exploration Agency (JAXA) is conducting research and development on aircraft engine technologies to reduce environmental impact for the Technology Development Project for Clean Engines (TechCLEAN). As a part of the project, combustion technologies have been developed with an aggressive target that is an 80% reduction over the NOx threshold of the International Civil Aviation Organization (ICAO) Committee on Aviation Environmental Protection (CAEP)/4 standard. A staged fuel nozzle with a pilot mixer and a main mixer was developed and tested using a single-sector combustor under the target engine's landing and takeoff (LTO) cycle conditions with a rated output of 40 kN and an overall pressure ratio of 25.8. The test results showed a 77% reduction over the CAEP/4 NOx standard. However, the reduction in smoke at thrust conditions higher than the 30% MTO condition and of CO emission at thrust conditions lower than the 85% MTO condition are necessary. In the present study, an additional fuel burner was designed and tested with the staged fuel nozzle in a single-sector combustor to control emissions. The test results show that the combustor enables an 82% reduction in NOx emissions relative to the ICAO CAEP/4 standard and a drastic reduction in smoke and CO emissions.


2011 ◽  
Vol 23 (6) ◽  
pp. 906-906
Author(s):  
Shigeoki Hirai ◽  
Fumi Seto ◽  
Kazuhito Yokoi

The Strategic Development of Advanced Robotics Elemental Technologies (STARET), a METI (Ministry of Economy, Trade and Industry) project conducted under a 5-year plan starting in 2006, was a nonconventional, unique, mission-oriented effort concerning the stage gate system. METI’s technology development project R&D is usually pursued bottom up. It is where most advanced modern technologies are selected and developed for practical use. The STARET, however, has pursued development top down without selecting a specific technology. Potentially practical work is selected from the view of businesses using robots. The target here is defined as a mission in which robot systems are built combining optimum technologies. Practical work has focused on two manufacturing themes, three service field themes, and two special environment themes. These were selected for new ranges of purpose, new marketability, and a public nature. This special issue features STARET topics focusing on research outcomes of robot systems intended for practical use. Topics on practical technologies related to the above themes were sought, resulting in many papers from nonproject participants in addition to those from STARET participants. The regular standard was applied to the peer review and articles were chosen for originality. We expect this special issue will help speed up and promote the research and development of robots intended for practical use.


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