| 1. |
- Jouannet, Christopher, et al.
(författare)
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Design and Flight Testing of a Solar Powered Aircraft, a Student Challenge
- 2013
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- The presented work considers designing, building and flight testing a solar poweraircraft as a student project. The goal is to allow student to participate in an aircraft projectfrom design to flight test in order to acquire aircraft design knowledge from theoretical andpractical means. A first theoretical part consists of creating a sizing program for studyingdifferent concepts. Then the gathered knowledge will result in the realization of a flyingdemonstrator. This was realized during a student project over a 5 month period
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| 2. |
- Munjulury, Raghu, et al.
(författare)
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Analytical weight estimation of landing gear designs
- 2017
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Ingår i: Proceedings of the Institution of Mechanical Engineers. Part G, Journal of Aerospace Engineering. - : SAGE PUBLICATIONS LTD. - 0954-4100 .- 2041-3025. ; 231:12, s. 2214-2227
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Tidskriftsartikel (refereegranskat)abstract
- Landing gear weight calculations can be carried out using statistical or analytical methods. Statistical methods were used in the past and offered quick group weights. However, they are not capable of computing accurately the weight of landing gears, which have special geometries and performance. In this work, landing gear weight is computed using analytical methods based on parametric 3D models. The procedure established by Kraus and Wille is applied as a baseline so as to create a procedure capable of dealing with landing gear weight calculations. This method is designed to be as flexible as possible, giving the user the freedom to modify many options and parameters and integrate landing gear design into Robust Aircraft Parametric Interactive Design.
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| 3. |
- Munjulury, Raghu Chaitanya, et al.
(författare)
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A knowledge-based integrated aircraft conceptual design framework
- 2016
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Ingår i: CEAS Aeronautical Journal. - : Springer. - 1869-5582 .- 1869-5590. ; 7:1, s. 95-105
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Tidskriftsartikel (refereegranskat)abstract
- "The conceptual design is the early stage of aircraft design process where results are needed fast, both analytically and visually so that the design can be analyzed and eventually improved in the initial phases. Although there is no necessity for a CAD model from the very beginning of the design process, it can be an added advantage to have the model to get the impression and appearance. Furthermore, this means that a seamless transition into preliminary design is achieved since the CAD model can guardedly be made more detailed. For this purpose, knowledge-based aircraft conceptual design applications Tango (Matlab) and RAPID (CATIA) are being developed at Linköping University. Based on a parametric data definition in XML, this approach allows for a full 3D CAD integration. The one-database approach, also explored by many research organizations, enables the flexible and efficient integration of the different multidisciplinary processes during the whole conceptual design phase. This paper describes the knowledge-based design automated methodology of RAPID, data processing between RAPID and Tango and its application in the courses ‘‘Aircraft conceptual design’’ and ‘‘Aircraft project course’’ at Linköping University. A multifaceted user interface is developed to assist the whole design process."
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| 4. |
- Munjulury, Raghu Chaitanya, et al.
(författare)
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Knowledge-based Integrated Wing Automation and Optimization for Conceptual Design
- 2015
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Ingår i: 16th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference16th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. - Reston, Virginia : American Institute of Aeronautics and Astronautics. - 9781624103681
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Konferensbidrag (refereegranskat)abstract
- Contemporary aircraft design and development incurs high costs and consumes a lot of time for research and implementation. To minimize the development cost, an improvement of the conceptual design phase is desirable. A framework to support the initial design space exploration and conceptual design phase is presently being developed at Linköping University. In the aircraft design, the geometry carries a critical, discriminating role since it stores a significant part of the information and the data needed for most investigations. Methodology for design automation of a wing with a detailed description such that the geometry is effectively propagated for further analysis is presented in this paper. Initial weight estimation of the wing is performed by combining the weight penalty method with a sophisticated CAD model. This wing model is used for airfoil shape optimization and later for structural optimization. A methodology for automatic meshing of the geometry for CFD and FEM when the surfaces increase or decrease during the design automation is proposed. The framework combining automation capability with shape and structural optimization will enhance the early design phases of aircraft conceptual design.
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| 5. |
- Munjulury, Venkata Raghu Chaitanya, et al.
(författare)
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RAPID – Robust Aircraft Parametric Interactive Design : A Knowledge Based Aircraft Conceptual Design Tool
- 2013
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Ingår i: Proceedings of the 4th CEAS Conference in Linköping 2013. - Linköping. - 9789175195193 ; , s. 255-262
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Konferensbidrag (refereegranskat)abstract
- Conceptual design is the early stage of theaircraft design process where results areneeded faster both analytically and visually sothat the design can be modified or changed atthe earliest stages. Although there is nonecessity for a CAD model from the verybeginning of the design process it can be anadded advantage to have the model, to get theimpression and appearance.Tango and RAPID are knowledge basedaircraft conceptual design applications beingdeveloped in Matlab and CATIA respectively.The user can work in parallel with bothprograms and exchange the data between themvia XML. This paper describes the knowledgebased design automated methodology of RAPIDand its application in the courses “Aircraftconceptual design” and “Aircraft projectcourse” at Linköping University. A multifaceteduser interface is developed to assist in the wholedesign processes.
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| 6. |
- Parés Prat, Andreu, et al.
(författare)
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Analytical weight estimation of unconventional landing gear designs
- 2015
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Ingår i: <em>Proceedings of the Institution of MechanicalEngineers, Part G: </em>.
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Konferensbidrag (refereegranskat)abstract
- Landing gear weight calculations can be carried out using statistical or analytical methods. Statistical methods were used in the past and offered quick group weights, however, they are not capable of computing with accuracy the weight of unconventional landing gears which have special geometries and performances. In this work, landing gear weight is computed using analytical methods. The procedure established by Kraus and Wille is acquired as a baseline so as to create a program able to deal with landing gear weight calculations. This software has been designed to be as much flexible as possible, giving the user the freedom to modify many options and parameters.
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| 7. |
- Staack, Ingo, 1981-, et al.
(författare)
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Parametric Aircraft Conceptual Design Space
- 2012
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Ingår i: Prceedings of the 28th International Congress of the Aeronautical Sciences.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- This paper presents the development of a design framework for the initial conceptual design phase. The focus in this project is on a flexible database in XML format, together with close integration of automated CAD, and other tools, which allows the developed geometry to be used directly in the subsequent preliminary design phase. The database and the geometry are also described and an overview is given of included tools like aerodynamic analysis and weight estimation.
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