Engineering Headway Vol. 16

Abstract: A Two dimensional numerical analysis is done for varying directional natural frequency ratio for a cylinder which is mounted elastically and executes two-degrees of freedom vortex induced vibration (VIV). VIV of the cylindrical structure at subcritical Reynolds number (Re) of 3.8 x 10⁴ is studied using a RANSE based CFD transient fluid structure interaction dynamic simulation model employing a user defined function for modeling the response. Analyses are carried out for three different values of directional natural frequency ratios in the range 0.5, 1 and 1.5. Cylindrical models corresponding to mass ratio 1.32 is investigated. Structural damping is neglected in the present study. The study leads to interesting observations with respect to the patterns of trajectories at certain values of frequency. The paper serves as additional guidelines in riser design and its trajectory predictions.

Abstract: As a result of the high strength-to-weight ratio, the automobile industry is becoming increasingly interested in replacing steel springs with composite leaf springs. The task at hand is to swap out some steel springs for alloy springs. The car's suspension impacts how comfortable it is to drive and how much damage it sustains. The leaf spring group's primary role is to support the suspension element's vertical load. The contact between the blades makes adjusting the crossbow's action more difficult. The goal of this article is to replace steel multi-disc springs with single joint springs that have a higher load carrying capacity and are more stiff. This alloy offers a greater strength-to-weight ratio and a more elastic corrosion energy storage capacity than steel. The crossbow's weight can be lowered without sacrificing the crossbow's load capacity or stiffness. The stress and displacement are controlled by the barrier design.

Abstract: Numerous quality issues can be found in the apparel sector in a number of disciplines, including fabric spreading, cutting, sewing, printing, embroidery, ironing, and packing. In the garment business, the boundaries of acceptable product quality have retreated, penalizing every flaw with one point. In the garment business, total quality management, or TQM, is essential for increasing output, enhancing product quality, and cutting production costs by minimizing scraping and rework. Data on quality flaws has been gathered from Supply Chain Management (SCM) clothing using AQL standard of 7.0point Traffic light system (Green, Yellow, Red). To perform this study to use the TQM tools such as bar chart and pie chart, easy to compare the before implementation and after implementation product quality were analyzed. Additionally, data is collected in order to find flaws and fix them. Rework operations are initially found and fixed in order to lower the defect ratio. We will put our thoughts into practice and contribute to this project in order to control quality.

Abstract: In recent years, vicinity of robotics has made considerable evolves, resulting in an assortment of robots that can assist and collaborate with people in a variety of situations. The integration of robotics into human environments offers the potential to address challenges and provide assistance in scenarios where human intervention may be limited or impractical. Various challenges faced by different demographic groups require specialized solutions. For example, the elderly may need assistance with mobility, while differently-abled individuals may require support with daily tasks. The robot will be designed to navigate through indoor environments, recognize objects, and respond to user commands through natural language processing. To design and implement a human-helping robot that can provide support in daily activities, enhancing the quality of life for individuals.

Abstract: The fundamental algorithms of many additional applications, including those that deal with machine learning, signal processing, image processing, and video processing, depend heavily on addition units. In addition to their intrinsic value, addenda are essential for many mathematical operations such as division, multiplication, squaring, and comparison. The parallel prefix adder (PPA) is among the fastest adders available. The efficient parallelization implementation of Parallel Prefix Adders (PPAs) in the carry production (G) and propagation (P) phases may be responsible for their fast performance. A PPA approximation based on estimates from POs is presented in this work. Each of these requires less energy than the others. Keywords—Adder, Signal processing, Algorithm, Parallel Prefix Adder,

Abstract: Electric vehicle (EV) charging infrastructure must be effective and favorable to the environment as a result of the transition towards sustainable transportation. This paper examines the concept of a sustainable recharge infrastructure that utilizes solar and wind energy. With the growing prevalence of hybrid and electric vehicles, the need for dependable and quick-charging solutions has become essential. Traditional charging stations powered by the utility have a limited capacity and can burden the existing electrical infrastructure. This study proposes a sustainable approach that incorporates solar and wind energy to power EV charging stations in order to resolve these issues. Reduced reliance on fossil fuels can be achieved through the use of renewable energy sources, resulting in lower greenhouse gas emissions and a more sustainable transportation ecosystem. Additionally, the paper discusses the potential benefits, challenges, and considerations associated with the implementation of such a sustainable charging infrastructure. The findings demonstrate the importance of integrating renewable energy into EV charging systems, paving the way for a cleaner and sustainable transportation future. Keywords: electric vehicle charging infrastructure, sustainable transportation, renewable energy, solar energy, wind energy, hybrid vehicles, electric vehicles, fast-charging solutions

Abstract: Toddler safety is paramount, particularly in situations such as a toddler falling into a borewell, which can be extremely perilous. This study introduces a novel IoT-based approach to ensure prompt and successful child rescue in such emergencies. By automating the process, it reduces hazards associated with traditional rescue methods and eliminates the need for physical intervention. This IoT-driven borewell child rescue system integrates early detection, intelligent response, and preventative measures, significantly enhancing the chances of a successful rescue operation and safeguarding children in dangerous circumstances.

Abstract: Wearable antenna design is becoming a growing subject of study because of its numerous applications. Patch antennas are the major focus of the Wireless Body Area Network (WBAN) application since they are affordable, lightweight, and have a straightforward design. With wearable uses in mind, we will be using a microstrip patch antenna. The planned antenna has measurements of 60 X 60 X 1.6 mm and a fr4 dielectric constant substrate with value of 1.6. Resonance frequency of the antenna is 2.45 GHz. It is possible to use this proposed antenna in military jackets, and it has a gain of 2.96 dBi. Due to its advantages, such as compatibility, flexibility, excellent designs, and shapes, as well as excellent performance under various conditions, safety, low power consumption, miniaturization, and accommodating bending angles, the SAR value is kept at a low level.