A probabilistic conceptual design and sizing approach for a helicopter

Download
2010
Selvi, Selim
Due to its complex and multidisciplinary nature, the conceptual design phase of helicopters becomes critical in meeting customer satisfaction. Statistical (probabilistic) design methods can be employed to understand the design better and target a design with lower variability. In this thesis, a conceptual design and helicopter sizing methodology is developed and shown on a helicopter design for Turkey.

Suggestions

Conceptual design of a stealth unmanned combat aerial vehicle with multidisciplinary design optimization
Çakın, Uğur; Alemdaroğlu, Hüseyin Nafiz; Department of Aerospace Engineering (2018)
The present study aims to develop a methodology for multi-disciplinary design optimization (MDO) of an unmanned combat aerial vehicle. At the current stage of optimization study, three disciplines are considered, which are aerodynamics, structural weight and radar cross section (RCS) signature. As objective functions, maximum range and minimum RCS signature are employed. To generate pareto-optimal solutions, multi-objective particle swarm optimization (MOPSO) function of MATLAB® is performed. To get aerodyn...
Design of a high speed decoy UAV
Baykara, Umut; Alemdaroğlu, Hüseyin Nafiz; Department of Aerospace Engineering (2016)
This study consists of design, CFD aerodynamic analysis and optimized selection of a high speed decoy UAV. The mission requirements for the high speed decoy are based upon the previous experiences in literature. The requirements are specified as: Maximum altitude of 15000 ft, maximum speed of 450 kts and an endurance of at least 1 hour. The decoy UAV is launched from a pneumatic catapult and lands via a parachute system. It is a highly agile aircraft having a very high maneuverability capability. The aircra...
An accelerated life test approach for aerospace structural components
Özsoy, Serhan; Çelik, Mehmet; Kadıoğlu, Fevzi Suat (Elsevier BV, 2008-10-01)
In this article, analysis and testing processes of the prototype of a helicopter’s mission system sensor (MSS)-cowling assembly is described. MSS is an add-on unit which is mounted on the helicopter body. In order to ensure that the attached unit functions for a specified life without structural failure, a careful analysis and testing program had been implemented. The approach described here which involves accelerated life testing (ALT) establishes an appropriate methodology for such “integration” projects....
A new model for distributed mems transmission lines
Topalli, K; Unlu, M; Sagkol, H; Demir, S; Aydın Çivi, Hatice Özlem; Koc, S; Akın, Tayfun (2004-06-26)
This paper presents a new model for the distributed MEMS transmission line (DMTL) structure where the MEMS bridges that are placed periodically on a high-impedance transmission line are represented as low-impedance transmission lines, rather than a lumped CLR circuit. The model includes LC networks at the transition point from high-impedance to low-impedance lines to account for the effects of discontinuity. The accuracy of the model is verified with measurements on three types of DMTLs that are fabricated ...
A continuous path planning approach on Voronoi diagrams for robotics and manufacturing applications
Özcan, Melih; Yaman, Ulaş (2019-01-01)
Coverage of an area is required for a large variety of robotics and manufacturing applications, such as environment monitoring, home cleaning, search and rescue operations, machining, delivery, additive manufacturing and even for 3D terrain reconstruction. In this work, we present highly flexible algorithms that can be used for coverage and graph traversal. Although our methods take advantage of variable-sized Voronoi cells, by which regular, irregular and complex geometries can be easily composed, it is no...
Citation Formats
S. Selvi, “A probabilistic conceptual design and sizing approach for a helicopter,” M.S. - Master of Science, Middle East Technical University, 2010.