Browsing by Author "Sarisayin, Nazli Hilal"

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Citation - WoS: 7
Citation - Scopus: 7
Geometric Design of Planar Scissor Linkages with Hybrid Loop Assemblies
(ASCE-AMER SOC CIVIL ENGINEERS, 2022) Nazli Hilal Sarisayin; Yenal Akgun; Feray Maden; Ozgur Kilit; Kilit, Ozgur; Sarisayin, Nazli Hilal; Sarlsayln, Nazll Hilal; Akgun, Yenal; Maden, Feray
Due to their expansion capabilities and the simplicity of their design scissor linkages have been used in both architecture and engineering for various applications such as expandable roofs and shelters movable bridges furniture and as parts of mechanisms. The two main design methods used for scissor linkages are the unit-based method and the loop-based method. While the unit-based method is based on serial multiplication of the scissor units the loop-based method is based on aligning predefined loop types onto the desired curve. When the input parameter is the desired curvature for the finally deployed configuration of the linkage the loop-based method is easier and more convenient for defining the scissor units to create the whole linkage geometry. Most of the existing studies on the loop-based method deal with identical or arbitrary loops. Hybrid loop assemblies have not yet been studied although they may offer different geometric alternatives. This work aimed to fill this gap in the literature and present a geometric design approach for scissor linkages composed of hybrid loop assemblies using frieze patterns. First the basic terminology such as loop types loop assemblies and frieze patterns is introduced. Then we discuss scissor linkages using hybrid loops generated using a predefined rectilinear geometry in which frieze groups are used to provide diverse variations. The kinematic definitions of the represented linkages are then explained. To reveal the potential applications of the scissor linkages composed of hybrid loops a case study was conducted in which the proposed linkages were used as a canopy structure. After discussing the potential for using hybrid loops and their deployment we present the concluding remarks and make suggestions for future research. (C) 2022 American Society of Civil Engineers.
THE EFFECT OF USING KINETIC FACADES IN INCREASING THE DAYLIGHTING PERFORMANCE OF BUILDINGS
(ZNACK PUBLISHING HOUSE, 2024) Ebru Alakavuk; Nazli Hilal Sarisayin; Alakavuk, Ebru; Sarisayin, Nazli Hilal
With the development of technology and the emergence of the necessity to adapt to variable environmental conditions kinetic systems have gained importance in architecture. Especially in the last decades the need for a transformable adaptable dynamic architecture has increased. According to research kinetic facades positively affect the environmental performance of buildings. Daylight is a natural force that can change depending on the movement of the sun. A fixed shading element is effective only at certain times of the day but a kinetic element can respond to varying environmental conditions. Using such systems is important to achieve better daylighting performance. In this article the proposed kinetic facade is tested to determine the type required for a secondary facade element that is planned to be applied to a facade of a university building in Izmir. The aim of this research is to investigate the effect of using kinetic facades daylighting performance with simulation method using Rhino/ Grasshopper and its add-ons. This research will be examined in three parts: analysis of existing situation simulation of the proposed kinetic facade and evaluation and discussion of simulation results. As a result of the analysis it is expected to find the result that kinetic systems improve the environmental performance of the building. In addition it will be determined to what extent the level of openness of the kinetic facades affects the building performance. In this study also proposes a systematic approach for kinetic facades to test indoor daylighting performance establish daylight assessment and improvement.