Technology Reports of Kansai University (ISSN: 04532198) is a monthly peer-reviewed and open-access international Journal. It was first built in 1959 and officially in 1975 till now by kansai university, japan. The journal covers all sort of engineering topic, mathematics and physics. Technology Reports of Kansai University (TRKU) was closed access journal until 2017. After that TRKU became open access journal. TRKU is a scopus indexed journal and directly run by faculty of engineering, kansai university.
Technology Reports of Kansai University (ISSN: 04532198) is a peer-reviewed journal. The journal covers all sort of engineering topic as well as mathematics and physics. the journal's scopes are
in the following fields but not limited to:
The cranks are the propellant component of the transmission of a bicycle that converts the reciprocal movement of the cyclist's legs into the rotation movement. The objective of the article is to evaluate the characteristics of the part through FEA once the form optimization is applied. Initially the conditions to which it would be prone to fail are determined. With the optimization of shape, the connecting rod weight was reduced by 13% without affecting its mechanical properties
Spiral casings are a vital element in reaction turbines for hydraulic energy generation. This work analyses the behavior of many variables of spiral chambers in five families of models: Logarithmic, Fermat, Galileo, Archimedes, and Polynomial spirals. It also studies seven inlet diameters of the chamber. Each prototype was evaluated with standardized boundary conditions. Virtual models of chamber spirals were built from mathematical equations. The behavior of the fluid inside the models was evaluated using computational fluid dynamics. The simulations were performed in the module CFX of ANSYS®19.1, and a velocity profile of the dynamic behavior of the fluid inside each spiral chamber was obtained. Absolute, tangential and radial velocities of 50, 75 and 100 % of the flow area of the spiral chamber outlets were evaluated. Using a statistic study of velocity values at the outlet of the chamber calculated through CFD, the maximum average velocity and the minimum standard deviation were established. Additionally, optimal criteria for choosing the most appropriate chamber of each type were estimated. These models indicate that Archimedes spiral casings with inlet diameters of 100 and 150 mm present the best fluid-dynamic behavior