https://repositori.mypolycc.edu.my/jspui/handle/123456789/6667 2026-04-17T11:58:16Z https://repositori.mypolycc.edu.my/jspui/handle/123456789/7325 Title: DEVELOPMENT AND TESTING OF AUTOMOTIVE GEARS USING ALUMINIUM MATRIX NANO COMPOSITES Authors: Rajesh Purohit; M. M. U. Qureshi Abstract: Today Aluminium matrix composites (AMCs) are being widely employed for building, bridges, aircraft, navel, sports and automotive applications due to its high strength, high hardness and wear resistance along with light weightiness and economical production. The drive toward designing AMC components is to utilize the desired characteristics of metals and ceramics to fulfill the design requirements in optimum cost and performance level. This study involve the development of Al6061-nano Alumina composite gears for automobiles and testing of their hardness and wear resistance. The aluminium matrix nanocomposite gears were fabricated by reinforcing Aluminium 6010 alloy with nano aluminium oxide (alumina). The gear blanks were developed using ultrasonic assisted stir casting followed by heat treatment and hot forging. The spur gears were developed by machining of teeth in the gear blank. A wear testing set-up for testing of spur gears was fabricated and the wear tests were performed on the developed gears using wear testing set-up. The outcome of the work displays that the reinforcement of nano Al2O3 particles in aluminium matrix improves the hardness and wear resistance. 2021-12-01T00:00:00Z https://repositori.mypolycc.edu.my/jspui/handle/123456789/7242 Title: A STUDY ON TWO WHEELER SELF BALANCING BIKE USING A GYROSCOPE Authors: Sanmukh Mhatre; Pushkar Mistry; Pranjal Garde; Shubham Walke; Nandakumar Bhopale Abstract: In this day and age, automation has become more of a necessity than a luxury. Even after having several preventive safety measures, the use of two-wheelers leads to accidents. According to the survey most of them, happen because of imbalance or two-wheelers going out of control. The need for a self-balancing system for two-wheelers is in high demand among the customers. This paper studied the gyroscopic method of a self-balancing bike. The gyroscopic effect is used in stabilizing systems for sectors like the Military’s rocket guidance systems, aerospace, aeronautics industries, ships, etc. These sectors are using gyroscopes for years. We have incorporated this principle into our two-wheeler model. The factors which affect balancing are the center of mass of the system, mass distribution, acceleration, steering of the vehicle towards left or right, and most importantly gyroscopic effect. 2022-05-01T00:00:00Z https://repositori.mypolycc.edu.my/jspui/handle/123456789/7241 Title: ARTIFICIAL NEURAL NETWORKS AS A NATURAL TOOL IN SOLUTION OF VARIATIONAL PROBLEMS IN HYDRODYNAMICS Authors: Stebakov, Ivan; Kornaev, Alexei; Kornaeva, Elena; Litvinenko, Nikita; Kazakov, Yuri; Ivanov, Oleg; Ibragimov, Bulat Abstract: Artificial neural networks are a powerful tool for spatial and temporal functions approximation. This study introduces a novel approach for modeling non-Newtonian fluid flows by minimizing a proposed power loss metric, which aligns with the variational formulation of boundary value problems in hydrodynamics and extends the classical Lagrange variational principle. The method is distinguished by its data-free nature, enabling problem-solving through 2D or 3D images of the flow domain. Validation was performed using both multi-layer perceptrons and U-Net architectures, with results compared against analytical and numerical benchmarks. The method demonstrated good results with a relative error of 1.41% in comparison with the analytical solution for non-Newtonian fluids. The power loss formulation offers a clear advantage by simplifying the modeling process and enhancing interpretability. Notably, the proposed method demonstrates improvements over existing techniques by providing algorithmic simplicity and universality, with applications ranging from blood flow modeling in vessels and tissues to broader hydrodynamic scenarios. 2024-11-01T00:00:00Z https://repositori.mypolycc.edu.my/jspui/handle/123456789/7240 Title: A SEMI-ANALYTICAL APPROACH TO INVESTIGATE THE VALIDITY OF THE THERMAL EQUILIBRIUM ASSUMPTION IN THE ANALYSIS OF UNSTEADY FREE CONVECTION IN POROUS MICRO-CHANNEL Authors: A. F. Khadrawi; A. M. Maqableh Abstract: Exploring the transient thermal dynamics of a porous micro-channel, this study delves into a uniform composite substrate governed by the parabolic heat–conduction model. The composite structure comprises a fluid domain (matrix) and solid inserts, each crafted from distinct materials. The research defines the parameter range within the application of the thermal equilibrium assumption (TEA) is suitable for analyzing transient free convection flow in the porous micro-channel, as characterized by the parabolic heat-conduction model. The investigation also scrutinizes the influence of various parameters on the validity of the local thermal equilibrium assumption (LTEA)) within the framework of the parabolic heat conduction model. The most significant impact on the LTEA is observed for the volumetric Biot number, thermal conductivity ratio, Knudsen number, and total thermal capacity ratio. Specifically, large values of the Knudsen number and thermal capacity ratio, along with small values of the Biot number and thermal conductivity ratio, contribute to securing the LTEA. 2024-01-01T00:00:00Z