Informatics Publishing Limited

Shubham Gupta ¹, Karan Kothari ¹, Jay P. Mishra ¹, B. Ashok ¹

Affiliations
1 School of Mechanical and Building Sciences (SMBS), VIT-University, Vellore - 632014, Tamil Nadu, IN

Abstract

Background/Objectives: The present investigation guides through the design, analysis and material selection process of Subaru EJ25D gasoline engine flywheel to reduce the weight of the flywheel without compromising its performance. Methods/Statistical Analysis: The flywheel was modeled using 3D modeling software Solid works. The validation of the strength of the flywheel was done by calculating and applying the forces on the flywheel using ANSYS software. The Finite Element Analysis (FEA) was conducted by considering the centrifugal forces acting on the flywheel. Structural analysis of the flywheel was done to validate the use of the alternate materials for constructing the flywheel. A comparative analysis of the stresses, total deformation and safety factor of the flywheel made of cast iron, titanium alloy, E-glass and aluminium alloy was reported. Findings: Based on the analysis, Aluminium alloy was found to be the most suitable material for constructing the flywheel. Specific tensile strength was considered for selection of the alternate materials of the flywheel. This paper also demonstrated the feasibility of using non-conventional materials like composite for manufacturing flywheels. Applications/Improvements: Flywheels which are a commonly used part in automobiles are subjected to multiple varying stress cycles which ultimately can lead to its failure.

Keywords

Alternate Materials, Engine, Flywheel, Gasoline, Performance

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P. Padmavathi ¹, Raja Sankar ², N. Kokilavani ³, K. Dhanapal ⁴, B. Ashok ³

Affiliations
1 Dhanvantri College of Nursing, Ganapathypuram, NO – 1, Ranganoor Road, Muniyappan Kovil, Pallakkapalyam, Namakkal District – 637 303, IN
2 Melmaruvathur Adhiparasakthi Institute of Medical Sciences (MAPIMS), Melmaruvathur, IN
3 Adhiparasakthi Collège of Nursing, Melmaruvathur, IN
4 Dhanvantri College of Nursing, Ganapathypuram, NO – 1 Ranganoor Road, Muniyappan kovil, Pallakkapalyam, Namakkal District – 637 303, IN

Abstract

Adequate symptoms assessment is essential in premenstrual syndrome prevention. Assessment scales were designed to support practitioners in identifying adolescents at premenstrual syndrome risk. The Premenstrual syndrome scale is one of the most extensively studied symptoms assessment instruments, although the majority of studies focused on validity rather than reliability.

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Ajinkya Krishnakumar ¹, Parth Sharma ¹, Yash Tambi ¹, B. Ashok ¹

Affiliations
1 School of Mechanical Engineering (SMEC), VIT University, Vellore - 632014, Tamil Nadu, IN

Abstract

Objective: The study focuses on finding out, whether the flow temperature plays a role in the aerodynamic drag experienced by the moving body or not. Method/Analysis: For doing so, a small scale wind tunnel was constructed and its initial recorded data was matched with the simulated results. This gave an extent to which the fabricated tunnel is accurate or correct in determining drag. Next the temperature of flow in tunnel would be changed physically, to get drag for an extended range of temperature difference. The results will be observed with the help of plotted graphs, and conclusions would be drawn. Findings: The study revealed the temperature dependency of drag. It tends to increase with temperature. With an increase in 3°C in the temperature the drag coefficient was found to increase by 0.025. Novelty: The tunnel design can be further improved to provide accurate dependence relation.

Keywords

Acquisition System, Aerodynamic Drag, Digital Data, Drag Coefficient, Drag Dependence on temperature, Flow Temperature, Wind tunnel.

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Ananthabadmanaban ¹, B. Ashok ¹

Affiliations
1 Department of Community Nursing, Angel College of Nursing, Khammam, IN

Abstract

Background: Globally around 1.5 million symptomatic Hepatitis 'A' cases occur each year with likely tens of millions of infections. Hepatitis A virus (HAV) is responsible for considerable morbidity and economic losses to under developing countries like India. Objectives: To assess the effectiveness of structured teaching programme of knowledge on prevention of Hepatitis A among the adults. Design: A one group pre test and post test Pre experimental design was adopted for the study. Setting: Thandalam village at Kanchipuram District. Participants: 100 adults with fulfilling the inclusion criteria were selected by convenient sampling. Methods: A pre test was conducted by using knowledge questionnaire related to hepatitis A. Immediately after pre test structured teaching programme was given to the adults about prevention of hepatitis A for 7 days and 8th day post test was conducted to assess the effectiveness of structured teaching programme. Collected data was analysed by using descriptive and inferential statistics. Results: In pre test, 67 (67%) had inadequate knowledge and 33 (33%) had moderately adequate knowledge whereas in post test, 82(82%) adults had adequate knowledge and 18(18%) had moderately adequate knowledge. By comparing pre test and post test knowledge score, structured teaching programme improved their knowledge on prevention of Hepatitis 'A' with statistical significance P<0.05. There was a statistically no significant association found between the post test scores of the sample with their demographic variables. Conclusion: The findings imply the need for educating adults on effective management of prevention of hepatitis A. An Education should be extended to the urban slum adults also.

Keywords

Effectiveness, Structured Teaching Programe, Prevention of Hepatitis A, Adults.

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K. Bala Murugan ¹, Manish Kumar ¹, B. Ashok ¹, B. Hari Prasad ¹, Arjun Vedadri ¹

Affiliations
1 Defence Research & Development Laboratory, Hyderabad, IN

Abstract

According to international standards, measurement uncertainties have to be stated with all measurements and any measurement result is meaningless without a quantitative statement of uncertainty. Measurement uncertainty is characterized by the dispersion of values that could be attributed to the result of measurement. The dispersion of measurement result is obtained from the dispersion of various quantities influencing the measurement. The suitable information about the parameters which influence the measurement is described by probability density functions. This paper describes a method for evaluation of measurement uncertainty of high precision length measuring equipment by considering various factors associated with the measurement process.

Keywords

Uncertainty, Calibration, Accuracy.

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