IJET Vol. 8, Issue 4, December 2023
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Öğe Beyond Functionality: Morphological Design Tools for Users’ Satisfaction in Housing(İstanbul Gelişim Üniversitesi Yayınları / Istanbul Gelisim University Press, 2023) Bulut, Halise Betül; Akbar, JamelVarious factors can affect an individual’s satisfaction level. While studying residential satisfaction and assessing it, subjective perceptions have the most significant influence. An essential element in ensuring satisfaction in housing is to consider the design of spaces that cater to individuals’ specific desires and needs that change over time. Housing was frequently constructed considering the specific subjective needs of individuals, before the era of industrialization. As industrialization rises, housing gradually transformed into a commodity. Certain researchers propose that studying traditional built environments and harnessing the data gained from such analyses can be advantageous for contemporary housing production. Notably, Habraken is a prominent researcher who sought to ensure users’ satisfaction in housing by devising the “Support System” rooted in his analysis of Dutch houses. Traditional house plans in Türkiye exhibit resemblances to the morphological arrangements observed by Habraken in Dutch houses, yet with some distinctive characteristics. In modern times, designers often prioritize function as the primary consideration. However, there have been attempts, such as Habraken’s, to shift towards prioritizing morphology instead. This paper will explain links between users’ satisfaction and their ability to change their immediate environments through morphologies that accommodate diverse functions.Öğe The Influence of Deep Rolling Process on Fatigue Durability for Vehicle Tie-Rod Component(İstanbul Gelişim Üniversitesi Yayınları / Istanbul Gelisim University Press, 2023) Hasanoğlu, Emre Azim; Dayı, Sinan; Sayı, Abdülmecit HarunIn the automotive industry, most of the components are consistently subjected to the dynamic loading due to the randomly observed situations from road inputs and periodic vibration from IC engine working during the operation. Such loadings cause the durability problem which may result in failure or cracking at stresses that are well below the yield strength of the material. Therefore, along with the development of new processing techniques, different surface treatment processes are applied to enhance the fatigue behavior of components. Being one of the mechanical surface treatment methods, deep rolling is an efficient way for improvement of fatigue performance by strengthening the critical section and providing compressive type of residual stresses. In this paper, the effect of the deep rolling process on fatigue behavior of steel stud in tie-rod used as steering system component was investigated. Force-Number of cycles curves (F-N graph) for the fatigue test have been obtained from the tests. Evaluation of the fatigue endurance limits of the stud at un-rolled condition and rolled conditions at three different loads were performed. Test data was analyzed with a regression line to account for the scatter using probability density functions. The results indicate a significant enhancement in the endurance limit following the implementation of the rolling process, as compared to the unrolled state. Furthermore, it was observed that the endurance limit proportionally increased in line with the rolling load. These findings underscore the crucial role of the deep rolling process in determining the optimal rolling load for the specific stud design and material conditions.Öğe A Performance Analysis of a Two Way Stop Control (TWSC) Intersection under Mixed Traffic Conditions(İstanbul Gelişim Üniversitesi Yayınları / Istanbul Gelisim University Press, 2023) Odesanya, Joseph FemiIntersections are road traffic infrastructure on highways installed to help settle directional movement that could result in conflict while vehicular trips are made. Evaluation of the challenges faced by different automobile users at the Araromi junction (A three Leg at-grade Intersection) located in Akure is the main objective of this paper. To achieve this objective, traffic flow data were collected on the spot by video recording and then the data were manually counted. While, the highway Capacity manual 2010 methodology was adopted to analyse The entry flow rates, Potential Capacities, Movement Capacities, Movement Control Delay, Approach Intersection Control and 95th Percentile Quene Length of the intersection. Findings shows that an average entry flow rate of 357 pc/h occurs for all the legs of the intersection, the North bound left turning movement of the intersection was not within the allowable limit, the average potential capacity by lane for the intersection is 445 pc/h, and the average movement capacity by lane 473 Pc/h, the various legs of the intersection has a level of service of ‘A’ and ‘C’ except the left turning minor street movement that has an ‘F’ LOS. Due to the influence of high traffic flow around the intersection, the analysis of the real-time traffic flow results reveals the need to diverge the high right turning movement into other route to cater for low left turning movement causing delay and poor LOS and a need to introduce Signal on the intersection in other to improve on her functionality.
