Papers by Keyword: Analysis

Abstract: Safety, by definition, is a state of protection against hazards, which implies measures for reduction/evasion/exclusion of risks. Safety is relative, depending on the degree of implementation of measures in specific conditions. The concept of security should only be considered as a result of risk management. Modern risk management practice is the basic risk levels and balancing between the need to ensure a certain level of security and the economic feasibility of investment in security measures. In practice, despite the declared safety priorities, industries are balanced between investment in security and an acceptable level of risk, without considering the nature and degree of influence of security measures at the stage of their development. This method of balancing is characterized by the desire of business to formally meet the general standards of risk management in order to minimize costs, minimize social and other types of responsibility, for the sake of maximizing income, which is a common problem. This problem is particularly acute in the context of national and industrial security.

Abstract: Water or moisture contained in any form in hydraulic oil is not desirable in a hydraulic system. It can cause emulsification of the oil, which results in deterioration or rupture of the lubricating film, as well as corrosion of metal parts in this system. This corrosion can cause damage to metal parts and impair their functionality. Regular control of the amount of water in hydraulic oil is therefore a very important part of hydraulic oil diagnostics. The article presents a case study of monitoring the condition of hydraulic oil for water content values, which were determined according to the Karl Fischer method. The analysis of hydraulic oil in the article was also an experimental drop analysis for monitoring water in hydraulic oil, which we classify as a quick and simple chemical method aimed at indicatively demonstrating the presence of water in oil and the degree of oil contamination. This analysis belongs to non-dismantling technical diagnostics. Its greatest advantage is that with its help, oil analysis is faster and cheaper compared to analyses performed in laboratories.

Abstract: Over time, the increase in population is directly proportional to the increase in water demand, this will cause problems in the future, namely the water crisis. In the Malikussaleh University medical building, clean water distribution planning is the main focus of the research. With the increase in the number of students from year to year, the demand for water is also increasing. To find out how much water is needed for each user of the building. From the results of the calculation analysis, the total water demand per day is 2,910 liters / day. The maximum water demand in the building occurs in period II (08.00-16.00) WIB which is 2,328 liters/8 hours or 0.000080833m3 /s. In this study, it is assisted by the EPANET 2.0 software program, from the results of the EPANET 2.0 software simulation, it shows that the distribution of water flowing through the pipe from the tank to the point of discharge is normal, there are some minor water losses at the intersection / branching of the pipe caused by the friction of water in the pipe, turns and valves. The highest water velocity occurs from the pump point to the tank which is 4.65 m/s.

Abstract: The flood caused by the heavy rainfall during July and August 2022 in Balochistan led to massive and widespread damage to the infrastructure and lifelines. A total of 6953.83 km of roads and 435 bridges were damaged in Pakistan. To prevent such losses and create a climate-resilient transport infrastructure system by creating bridges strong enough to endure various natural challenges with minimal harm and swiftly recover their functionality, this study used the data from 35 flood-affected bridges in Balochistan as a case study to create patterns and relationships between flood disaster and bridge failure mechanisms. Using qualitative data from field visits, the bridges were statistically analyzed for failure modes such as geological and structural failure, and for damage states including slight, moderate, extensive, and completely washed out. Then all possible failures in each component of the substructure and superstructure were observed. After data interpretation, it was disclosed that most bridges were moderately damaged, accounting for 37.14% of the total, with 62.86% experiencing a combination of geological and structural failures. The abutments, wing walls, and approaches were identified as the most affected components. Based on these findings, practical recommendations are proposed to mitigate the possible failures due to floods.

Abstract: Hand-powered tools are used in a large variety of operations in Industries/ Maintenance workshops. Our study mainly focuses on the effect of handle shape and workpiece orientation on hand discomfort levels and position. Long-term exposure to these discomforts or intense exposure to discomfort for even a short duration of time may cause Musculoskeletal disorders (MSDs). The present study was conducted in the Department of Mechanical Engineering, Aligarh Muslim University. To investigate – The design of the existing handle shape of hand-powered drill machines currently used in Industries. Modify/ Redesign the shape of tools with ergonomic aspects, According to Indian Anthropometric dimensions. At first, we perform drilling operations on different materials with different workpiece orientations with traditional handles and observe the levels and positions of discomfort. And according to the results we modify the existing handle’s design and experiment with these modified versions with the same working conditions. Then, compare the results with standards and their deviations. The experiment results show that modified handles have low a level of discomfort following the workpiece materials and orientations concerning the traditional handle. They are more comfortable than the existing ones. Additionally, they are more likely to have the perspective of gripping. Hence, it reduces the risk of (MSDs) and improves productivity.

Abstract: The combustion engines are widely used in the daily life of people, in cars, we find them with greater emphasis, and currently hybrid engines and electric motors are being used. In this analysis, one of the important factors for the failure of combustion engines is the temperature, for which cars have cooling systems, through the use of radiators and coolant-based systems. In this work we present a methodology for the analysis of the state of the components of the combustion engine system in cars, through the use and analysis of thermal images, for which it is necessary to identify the zones or control points depending on the model and type of engine and car, The analysis procedure requires a thermal camera, the results presented are related to the comparison of an optical and thermal image, in order to locate the control point, the method can be applied by mechanics, maintenance personnel and car drivers themselves, to analyze the condition of their car.

Abstract: The main objects of the EES, the service life of which exceeded the standard value, are increasingly beginning to determine the efficiency of work every year. This manifested in an increase in the number of automatic emergency shutdowns, the number and complexity of emergency-hazardous defects. Organization of operation, maintenance and repair of these facilities recommended carried out according to their technical condition. And since the technical condition determines the reliability and safety of the object, it is therefore recommended to take these properties into account more fully. These recommendations in the EES carried out at a high quality level, intuitively, according to operating experience.In this article, as distributed objects of continuous operation, overhead power transmission lines (OPTL) with a voltage of 110 kV and higher, the service life of which exceeds the standard value, are considered. The issues of quantifying the degree of significance of the aging problem for a set OPTL, their classification and methodology for assessing the difference in the degree of aging when classifying them according to given types of characteristics are considered. The methodology and algorithm of methodological support for the management of the EES and network enterprises during the organization of operation, maintenance and repair, been developed.

Abstract: This study focuses on the design and construction of an improved crushing machine with a capacity of 0.15 (150 kg/hr) tons per hour, 15 Hp, and 2910 rpm speed. The design follows criterion design guidelines to ensure the improved service life of the component. When the values produced from the current design approach were contrasted with the values and outcomes received from the analysis using the Ansys package, the design should be reliable. The hammers produced are subjected to carburisation process using bio-wastes such as coconut shells, saw dust, and palm kernel shells to enhance the reliability of the machine. The bending of the shaft is controlled during the rotation at rated speed rpm when a load is applied to the shaft. The critical speed of the shaft is experienced with deflection when the shaft rotates freely. The natural frequency and speed were put under check in order to avoid failure. The von Mises stress was employed as a yielding criterion for the shaft. It states that if the components of stress operating on a body are more than the criterion, the body will yield.

Abstract: In a recent survey, its observed that there is arise in crime rate in India, and due to this, many peoplefeel unsafe in this country. So to reduce it, predicting thecrime before it happens is very important. IndianGovernment uses a software called CCIS (Crime CriminalInformation System), this software is only used to storeinformation, but with the stored information, it doesn’t doanything else, the existing systems predict crime only on aday basis, but it doesn’t predict exactly at what hour is itgoing to occur, to predict it on a hour basis, accuracy isimportant, so to analyze and predict crime, the accuraciesof machine learning algorithms such as KNN, Decision treeand Random forest are compared in order to use the bestfor analysis and prediction.

Abstract: Crime prediction is a unique approach to identify and to find pattern trends of crime. Prediction means, using analysis and learning techniques, to find predictive actions of a specific activity and this is found to be effective in doing predictive analysis for various tasks such as crime prediction. The aim of this paper is to implement an approach for the problem in predicting the number of cases of crime happening in different parts of India. During the research we considered the machine learning model Random Forest and used the same for the prediction for crime. The prediction metrics used in this model are taken from feature selection technique. This technique increases the efficiency and accuracy of the prediction and also to avoid the model from over fitting. This model was tested on the crime data of India.