Comparison of different armour units of coastal structures in Rize-Artvin airport under overtopping and stability conditions

2017
Uğurlu, Arif
In this study, the armour units which are considered to be used in the construction of Rize-Artvin Airport are compared due to their stability and overtopping conditions. The study followed the necessary procedure for the design of coastal structures starting from determination design wave characteristics. The wave transformations to the structure are performed using P025 numerical model which was developed by Port Airport Research Institute, Japan. During design computations global warming, wind set-up, wave set-up, seasonal tides, barometric and coriolis effect and tidal effect are also taken into account to cover all possible critical conditions during the service life of the structures. Using the design wave characteristics and 15 different structure alternatives, a series of physical model experiments are performed to obtain the most appropriate option for the cross-section of coastal defense structures of Rize-Artvin Airport. Finally all results are compared and the most reliable sections are introduced with discussions.  

Suggestions

COMPARATIVE STRUCTURAL OPTIMIZATION STUDY OF COMPOSITE AND ALUMINUM HORIZONTAL TAIL PLANE OF A HELICOPTER
Arpacıoğlu, Bertan; Kayran, Altan (2019-11-11)
This work presents structural optimization studies of aluminum and composite material horizontal tail plane of a helicopter by using MSC. NASTRAN SOL200 optimization capabilities. Structural design process starts from conceptual design phase, and structural layout design is performed by using CATIA. In the preliminary design phase, study focuses on the minimum weight optimization with multiple design variables and similar constraints for both materials. Aerodynamic load calculation is performed using ANSYS ...
Evaluation of seismic response modification factors for steel frames by non-linear analysis
Bakır, Serhan; Yılmaz, Çetin; Department of Civil Engineering (2006)
In this study steel framing systems are investigated with regards to their lateral load carrying capacity and in this context seismic response modification factors of individual systems are analyzed. Numerous load resisting layouts, such as different bracing systems and un-braced moment resisting frames with various bay and story configurations are designed and evaluated in a parametric fashion. Three types of beam to column connection conditions are incorporated in evaluation process. Frames, designed acco...
Calculation of flutter and dynamic behavior of advanced composite swept wings with tapered cross section in unsteady incompressible flow
Farsadi, T.; Hasbestan, J. J. (Informa UK Limited, 2019-02-16)
In this study, the aeroelastic stability and response of a swept composite wing in subsonic incompressible flow are investigated. The wing is modeled as an anisotropic tapered thin-walled beam with the circumferentially asymmetric stiffness structural configuration to establish proper coupling between bending and torsion. The structural model considers a number of nonclassical effects, such as transverse shear, material anisotropy, warping inhibition, nonuniform torsion, rotary inertia and three-dimensional...
Measurements of dynamic stability derivatives using direct forced oscillation technique
Alemdaroglu, N; Iyigun, I; Altun, M; Quagliotti, F; Guglieri, G (2001-08-30)
The subject of the experimental investigation presented in this paper is to measure the dynamic stability derivatives of a generic combat aircraft model in the Ankara Wind Tunnel by using the direct forced oscillation technique. The model, used for the tests is the AGARD, Standard Dynamic Model (SDM). The aerodynamic loads acting on the model are measured with a five component internal strain gauge balance placed inside the oscillating model. The paper presents the experimental set-up used to create the osc...
Development of Structural Neural Network Design Tool for Buckling Behaviour of Skin-Stringer Structures Under Combined Compression and Shear Loading
Okul, Aydın; Gürses, Ercan (2018-11-15)
Stiffened panels are commonly used in aircraft structures in order to resist high compression and shear forces with minimum total weight. Minimization of the weight is obtained by combining the optimum design parameters. The panel length, the stringer spacing, the skin thickness, the stringer section type and the stringer dimensions are some of the critical parameters which affect the global buckling allowable of the stiffened panel. The aim of this study is to develop a design tool and carry out a geometri...
Citation Formats
A. Uğurlu, “Comparison of different armour units of coastal structures in Rize-Artvin airport under overtopping and stability conditions,” M.S. - Master of Science, Middle East Technical University, 2017.