3D-Printed Wings with Morphing Trailing-Edge Technology

In recent years, various groups have attempted to improve aircraft efficiency using wings with morphing trailing-edge technology. Most of these solutions are difficult to manufacture or have limited morphing capability. The present paper outlines a research effort to develop an easy to manufacture, fully 3D-printed morphing wing. This approach is advantageous due to the low cost, minimal man-hours required for manufacturing, and speed at which design iterations can be explored. Several prototypes were designed and tested and lessons learned from these iterations have been documented. Additionally, printer settings have been tested and catalogued to assist others attempting to reproduce these results. Performance was considered in terms of total deflection. Two concepts are presented as potential 3D-printed morphing-wing mechanisms. The Airfoil Recambering Compliant System (ARCS) is presented as a solution for a wing using continuous trailing-edge technology. The Kinetic Internal Nexus Compliant System (KINCS) is presented as a solution for a wing using discontinuous trailing-edge technology. The final KINCS design used for a prototype flying-wing aircraft is presented

Global multi-disciplinary design optimisation of super-hypersonic components and vehicles

Executive summary available: pages i-ii

Proceedings of the 11th European Workshop on Aircraft Design Education

These are the Proceedings of the 11th European Workshop on Aircraft Design Education (in short: EWADE 2013). The workshop took place from 17. to 19.09.2013 in Linköping, Sweden. EWADE 2013 was for the first time integrated into the CEAS European Air & Space Conference. Location was the congress center located right in the heart of the city of Linköping. The workshop was organized by Prof. Dieter Scholz, Aircraft Design and Systems Group (AERO), Hamburg University of Applied Sciences, in close cooperation with Prof. Petter Krus, Head of the CEAS2013 Programme Committee and Head of the Division of Fluid and Mechatronic System, Linköping University and Dr. Tomas Melin, CEAS 2013 Programme Secretary and Research Associate in the Division of Fluid and Mechatronic System, Linköping University. The workshop had 4 technical sessions: EWADE 1 - Presentations from EWADE Founders and Hosts. EWADE 2 - Teaching and Research Activities in Aircraft Design. EWADE 3 - Aircraft Design Studies. EWADE 4 - Aircraft Design - Methods and Tools. The proceedings cover all 19 presentations. 6 of these presentations are accompanied by full text papers

KEER2022

Avanttítol: KEER2022. DiversitiesDescripció del recurs: 25 juliol 202

Geometric proportional model of the church of the Ljubostinja monastery

The use of proportions is one of the oldest theoretical issues in architecture. However, sometimes geometry, with its specific shapes and constraints between them, can fully describe the logic of architectural design. This paper presents geometric proportional schemas of the Serbian medieval church of the monastery Ljubostinja (built around 1387), the representative of so-called Morava architectural style. The research is partly based on Ivo Štambuk’s proportional canon, which he applied on several churches, in wider Mediterranean region during prolonged period of time (4th to 15th c.). Štambuk’s proportional canon is based on two circles and one equilateral triangle constrained to each other and set relative to characteristic points of the church plan and cross-section, above all the location of the altar and the center of the church dome. By adding principles of triangulation and dynamic rectangles, this paper demonstrates more precise proportional model of the church plan and the cross-section through the dome. Results show that the proportions of the Ljubostinja’s church can be interpreted by dynamic rectangles (their diagonals are square roots of full numbers) with ratios 1:√2, 1:√3, 1:√5 and, in addition, by specific scheme of equilateral triangles which are constrained to the characteristic points of the church space: center point of the apse and the dome