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:
Multi-objective optimization of EDM machining process of hardened 90CrSi steel will be presented in this study. The input parameters including Concentration of powder, Pulse on time, Pulse off time, Current, and Voltage are chosen to minimize the electrode wear rate and maximize material removal rate. Grey Relational Analysis (GRA) is combined with Taguchi method to find the optimal set of machining parameters which can satisfy the responses. It is found that Current has the strongest influence (24.89%), but Volgage has the smallest effects (1.63%) on the responses. The proposed model corfirmed by experiment and ANOVA exhibits the reability approch to predict electrode wear rate and material removal rate.
This paper presents a two-dimensional dynamic analysis for a human leg, a model was developed using a Lagrangian approach to describe the body-leg interaction. This model could be useful analyzing the human gait for people with disabilities in a lower limb, and also helps to design and improve therapy procedures. The aim of this research is restricted to a specific scenario: working out with a step machine-common machine usually found in fitness centers. The movement of raising and lowering the leg was modeled, which is the most relevant motion in this activity. In the process were identified the different anthropometric parameters for the human body in relation with the weight and height of a specific individual. A set of partial differential equations relate the force generated in the foot with three variables: The angle between the thigh and the vertical, its variation with respect to time (angular velocity) and the angular acceleration. The results showed that the dynamic condition increases the reaction forces about 16% in this activity. The developed sequence of analysis could be used for optimization processes based on anthropometric and movement conditions. These results are useful for detailed designs of prosthesis and also to find the best economical options for manufacturing aid devices that meet the dynamic requirements. The mathematical formulation process confirms the advantages of the Lagrangian over Newtonian approach for these types of systems.
