Journals of Mechatronics Machine Design and Manufacturing (e-ISSN: 2582-8908)

Investigation of Wear Rate of Passenger Airplanes Tyres during Landing

Ali Hasan Hadi — 2024-01-04

To demonstrate how an aircraft might land, a real work replica of one main landing gear wheel is used. By reducing abrasive slippage between aeroplane tires and the surface of the runway immediately upon touch, this research aims to find potential tire-life enhancements. An experimental investment of size 25 X 8, type VII aeroplane tyres was conducted to evaluate the wear and related properties of temperature and friction caused while braking. One way to evaluate the tire's performance on surfaces with uniform slip ratios, including asphalt, concrete, and slurry seal, was to gear it up to the driving wheel of a ground vehicle. During dry runway operations, data was collected covering the range of slip ratios commonly attributed to an aeroplane's braking system. According to our findings, the characteristics of the runway surface have an impact on cumulative tire wear, which rises as the slip ratio decreases and varies linearly with mileage. The differing wear rates associated with the various surfaces may be used to rank runways based on tire wear.

Heat Treatment Analysis with Forced Convection for Anisotropic Thermal Deformation of 3D Printing Material

Neelima Devi Chinta — 2023-11-06

Users have the option to build one-of-a-kind products based on their needs using a 3D printing facility. The process of additive manufacturing has recently found a variety of uses in numerous industrial and commercial industries. The most popular filaments for 3D printing are ABS and PLA, even though they all provide premium stuff in various ways. The current study examines the impact of heat treatment on the mechanical strength of polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS) that were 3D printed using FDM technology. A layer-by-layer additive manufacturing technique is known as fused deposition modeling (FDM). Significant diversity in the mechanical properties of 3D printed specimens is seen as a result of changing process settings and interfacial adhesion between subsequent layers. This study examines how heat treatment affects the mechanical strength of poly lactic acid (PLA) and acrylonitrile butadiene styrene (ABS) used in FDM-based 3D printing. The mechanical characteristics of the 3D printed specimens, such as tensile strength, strain, and stiffness, were assessed under tensile loading of 400 kN. For PLA yield stress 357.5 N/mm², load at peak 5.860 KN, load at yield 5.72 kN, and load at break 5.340 KN. For ABS yield stress 346.25 N/mm², load at peak 5.340 KN, load at yield 5.24 KN, and load at break 5.160 K.

The heat-treated specimens were now characterized with a 400 kN tensile load, and mechanical characteristics like tensile strength, strain, and stiffness were assessed. A noteworthy evolution was found when comparing the mechanical characteristics of heat-treated and untreated specimens. The sample geometries are modified by heat treatment as well. At T_h of 150°C and below recrystallization temperature (T_r) of 65°C, the greatest mechanical improvement was made. The improvement ranged from 4.77% to 10.23% after heat treatment. Heat treatment also causes a reduction in deformations.

Virtual Lab Simulator in Mechanical Engineering Education-Hybrid Approach

Kowdodi Siva Prasad — 2023-10-26

Many universities worldwide are partially disrupting their education by the spread of the coronavirus. Consequently, the Universities took the necessary steps to change their teaching methods to online laboratory experiments and workshops. However, universities should continue to maintain their higher education standards and provide a high-quality student experience required for the learning outcomes associated with each degree program. Adhering to online teaching methods for both theory and practical lectures has created a challenge in education. The discussion of the theory lessons by showing PPTs and video presentations was comfortable for students. In addition to that, virtual labs came into existence. These virtual labs had a significant impact on students' learning process, but this did not apply to all labs. This paper projects the outcome of the virtual lab using the explicit dynamic analysis application in SolidWorks software and integration of AR & VR teaching techniques. This paper also includes the work done by the students and the effective outcome utilization of virtual labs compared with practical labs by using mild steel specimens.

The Space between Mars and Living Things in Future Technology and Research of Mars Planet

Dhakshna Moorthy. D — 2023-12-11

Our solar system, an expansive celestial entity, extends over vast temporal scales and encompasses immense spatial dimensions. Situated within the confines of the Milky Way galaxy, our terrestrial abode is Earth. The human species, renowned for its prodigious capacity for innovation and invention, perpetually engages in the pursuit of discovery. Amidst this ceaseless exploration, a conspicuous and unvarying object of fascination emerges the solar system, whether observed from terrestrial vantage points or explored beyond our planetary confines. Within the solar system, a multitude of celestial bodies populate the cosmic tableau, each with its unique attributes and characteristics. Among these diverse entities, certain planets exhibit the potential to harbour and sustain life, a fundamental prerequisite of which is the presence of oxygen, denoted chemically as O2. On Earth, our fortuitous existence is sustained by an abundant supply of oxygen. In stark contrast, many other celestial bodies within the solar system boast either an absence or meagre quantities of this life-sustaining element.

Micro Modeling and Machining of Aerospace Material with Electro Discharge Machining

Srikanth A B — 2023-10-31

Sparks created between an anode and a cathode submerged in a dielectric media are used to melt the material and remove it off the work surface in a technique known as micro electrical discharge machining (Micro EDM). Current scenarios necessitate the production of micro products with the desired precision and accuracy for use in fields as diverse as biomedicine, nuclear defence, transportation, and space exploration; consequently, my thesis is centred on this very idea of advanced and precision manufacturing. Aerospace components have been machined using EDM for decades, but the heated nature of the technique has long raised concerns about the safety and dependability of the finished products. Researchers have sought to model the EDM process in recent years; one such technique is to model it using thermal analysis. Milling straight, circular, and spiral microchannels, as well as other micro characteristics required in MEMS devices, is required. When it comes to creating some of the 3D microstructure, micro EDM is superior to microfabrication methods. In this study, we optimized micro EDM using the L9 orthogonal array and the grey-based Taguchi method, taking into account process parameters such as the response of the machining time, error with circularity, layer thickness, current (A), pulse on time, voltage (v) etc. The finite element procedure for the Micro EDM process has been effectively studied to estimate the metal removal rate (MRR) along with the residual stress for the single discharge.