Crimson Publishers-Mechanical Engineering

 Influence of Abrasive Water Jet Turning Operating Parameters on Surface Roughness of ABS and PLA 3D Printed Parts Materials by Fuat Kartal* in Crimson Publishers Abstract In this study, PLA and ABS materials produced by 3D printing with 14mm diameter and 300mm length were processed by turning with abrasive water jet machining. The effect of processing parameters with abrasive water jet on the surface roughness was investigated. The processing parameters are nozzle feed rate (60-210mm/min), abrasive flow rate (150-225g/min), chuck turning speed and nozzle distance. Experimental studies have shown that the increase in nozzle feed rate (from 50 to 200mm/min), abrasive flow rate (from 150 to 225g/min) and nozzle distance (from 3 to 9mm) results in average surface roughness values increased by 26%, 35% and 19%, respectively. It was concluded that the increase in the rotation speed of the mirror (from 75RPM to 225RPM) resulted in a 17% decrease. https://crimsonpublishers.com/eme/pd...

 Seismic Resistance of Turbine Equipment of Powerful Nuclear Power Plants by Serhii Palkov* and Ihor Palkov in Crimson Publishers Abstract: The paper considers the methods of the design analysis of the seismic resistance for the components of operating nuclear power plants in at three-dimensional setting using the finite element method. An algorithm to confirm the seismic resistance of equipment by a calculation method is proposed, and the limits of its application are determined. A mathematical model of the equipment is developed, and an example of the determination of natural frequencies and stresses for a three-dimensional structure is given. Two main types of calculation were used–static and dynamic. The seismic resistance of the equipment was estimated on the example of the K-1000-60/1500 steam turbine condenser and calculated at a seismic intensity of 6 points on the MSK-64 seismic intensity scale. In the course of solving this problem, results of the stress distribution...

 Editorial on Additive Manufacturing by Ananthapadmanaban Dattaguru* in Crimson Publishers Editorial: Additive Manufacturing is a buzz word in technology for the last few years. Most of the manufacturing was being done by both addition and removal of material like casting, welding, and machining. In recent times, mankind has realized that each bit of material saved is very crucial for the health of mother earth. Hence the thrust on additive manufacturing. Though the term additive manufacturing is new, some of the technologies like solid state welding are being used commercially for a few decades. The crucial difference is that CAD models are being generated after laborious research and the final product alone is manufactured layer by layer using additive manufacturing techniques. https://crimsonpublishers.com/eme/pdf/EME.000588.pdf For More open access journals in  Crimson Publishers please click on link:  https://crimsonpublishers.com

 A Review on Leader-Follower Based Path Optimization in Vehicle Platooning by Jeya Mala D* and Pradeep Reynold A in Crimson Publishers Introduction: In self-driving cars, especially when the vehicles are travelling as a cluster in which the first vehicle acts as a leader and the other vehicles act as followers, there is a need for proper communication on the selection of path. This will help the vehicles to reach their destination without any intermittent communication hurdles that leads to accidents and traffic congestions. To achieve this, the vehicles on the road are formed as a platoon in which the first vehicle will send the communication to all the follower vehicles to line up behind the leader. This will help them to automatically form a string formation to stay close to each other on the highway without any traffic difficulties. This survey report gives an overview on how nature inspired techniques could be applied to achieve vehicle platoons to smoothly run on the hig...

 Recent Developments and Scope of Electrochemical Micro Machining for Inorganic Materials by Soundarrajan M1*, Thanigaivelan R1, Prakash R2, Senthilkumar R1, Deepa D1, Yuvaraj T1, Aravindkumar D3 and Duraiselvam S3 in Crimson Publishers Abstract:  Micromachining is the technique used to fabricate 2D or 3 D structures on metals in range of micron level. There are different techniques exist in industry for manufacturing the micro components. The MicroElectromechanical Systems (MEMS) are categorized such as photo lithography, wet and dry etching, Fusion bonding, LIGA and laser micromachining. On the other hand, due to technological growth and increased application of non-silicon-based materials in industry, Non-MEMS based techniques such as Electrochemical Machining (ECM), Electro Discharge Machining (EDM), injection moulding, stamping and extrusion employs effectively. This development in current manufacturing trend is generally recognized that micro manufacturing. The curr...

  Abstract The main aim of this research is to experimentally investigate the two coupled identical ST500 gammatype Stirling engines and convert thermal energy to cooling energy. Using a new structure and two coupled Stirling engines at different temperatures and pressures and use of biomass fuel within the 4-8 bar average pressure range of the first engine hot source, the 1-4 bar average+ pressure range of the second engine cold source, and Stirling hot engine temperature range of 480-580 ºC, the effective cooling is obtained in the cold engine. In doing tests, attempts were made to reach lower than 9 percent error results in different parts of engine, including insulation, fluid leakage, belt loosing, and measurement devices. According to the obtained results, 8 bars increase in the average pressure range of the gas in the first engine hot source, a 1 bar reduction in the average pressure range of the gas in the second engine cold source, the increased temperature of the hot sour...

  Abstract An internal combustion engine modeling framework has been developed in the MATLAB/Simulink environment to allow engine component blocks to be connected in a physically representative manner to reduce the model build time. Each component block, derived from physical laws, interacts with other blocks according to block connection. In this series paper, detailed combustion modeling is presented among several engine subsystems. In the engine modeling framework, combustion is represented by a spherical flame propagating from the spark plug, and the burn rate is correlated to combustion chamber geometry, laminar flame speed, and turbulence. To accurately predict the burn rate, the quasi-dimensional model requires tuning. The combustion model has been computationally validated in a previous study and will be experimentally validated with real engine test data in the next series paper Read More About This Article:  https://crimsonpublishers.com/eme/fulltext/EME.000582.php R...

  Abstract In this paper, application of a Battery Management System (BMS) with Battery Energy Storage System (BESS) is realized by using solar power. Proposed system is designed for four different 12V, 60Ah batteries used by general purpose as an uninterruptable power supply unit for electronics devices. Furthermore, in developed application, with respect to state of charge of each battery, either batteries are used as energy supply or batteries are charged by solar power. In addition to BMS, battery charger system in order to regulate battery charge voltage is applied. With the application in this paper, by controlling each batteries charge level, an efficient way to use of batteries are provided in order to have a long life Read More about this Article:  https://crimsonpublishers.com/eme/fulltext/EME.000574.php Read More  Crimson Publishers Google Scholar  Articles:  https://scholar.google.com/citations?view_op=view_citation&hl=en&user=2eS4vdYAA...

Vacuum Treatment of Metal in the Process of Continuous Casting by Protasov AV* in Evolutions in Mechanical Engineering_ Vacuum Treatment Mini Review One of the promising areas of liquid steel processing is the development of metal vacuum treatment in the stream during continuous casting (flow Vacuum Treatment ). Several technological schemes of such processes have been developed, however, in practice, the only variant of the process has been implemented at the conditions of converter shop No-2 of Novo-Lipetzk Metallurgical Combine (NLMC) (Figure 1). The technology of flow vacuuming is based on the theoretical works of Professor G A Sokolov [1]. A steel ladle with a special jointing element covering the slide valve is installed on the supports of the CCM, then the hydraulic cylinder is attached to slide valve and the compressed air is given to assembling device.Then the slide valve is opened and vacuum chamber with the help of hydrocylinders is lifted to connecting with the ladle, whi...

Hydrogen Economy: Alternative Approaches by Vicente Fachina* in Evolutions in Mechanical   Engineering_ Hydrogen Economy Besides traditional approaches for producing and storing hydrogen from cheap, surplus electricity or heat to use in energy conversion processes, this paper aims at simulating the feasibility of using water as energy carrier by two alternative approaches: Hydrogen Combustion from water splitting, and LENR-Low Energy Nuclear Reactions . The former can yield 106J/kg-water magnitude energy intensity; the latter can yield 109 J/kg-water magnitude energy intensity. https://crimsonpublishers.com/eme/fulltext/EME.000525.php Evolutions in Mechanical Engineering _ Crimson Publishers For more open access journals in Crimson Publishers Please click on link: https://crimsonpublishers.com/ For more Articles on  Hydrogen Economy   Please click on: https://crimsonpublishers.com/eme/ Follow On Publons  : https://publons.com/publish...

Examination of Tensile Test Specimens Produced in Three-Dimensional Printer by Fuat Kartal* in Crimson Publishers: Applied mechanical engineering In this study, the effect of different parameters on tensile test specimens produced by joint manufacturing with open source code and equipment using PLA type filament was investigated experimentally. Tensile specimens were designed and manufactured according to ASTM IV type tensile test standards. The test design was based on the L9 orthogonal array of the Taguchi Method and experiments was designed according to this plan. According to the results, Parameters of layer thickness and filling scan range parameters were found to provide significant improvement in the tensile strength increase https://crimsonpublishers.com/eme/fulltext/EME.000521.php For More open access journals in Crimson Publishers please click on link: https://crimsonpublishers.com For More Articles on Applied mechanical engineering Please click o...

Usage of Process Models for Quality Management System: A Case Study of Energy Company by Kashif Mahmood*, Taivo Kangilaski and Eduard Shevtshenko in Evolutions in Mechanical Engineering Business Process Management is the most important part of nowadays management. It ties company employees to work together towards a common business goal as well as dismantle existing business connections if they do not work properly. Thus, it is important to understand the dynamics of processes in the context of employees and assessment of risk during the execution of processes. The current article describes the possible usage of process models in the sense of quality management based on performed case study. The aim of this paper is to describe how process modelling approach facilitates to manage elements of a Quality Management Systems (QMS) such as organizational structure and responsibilities, business processes, information management and control of documents. https://crimsonpublis...

A Review on Electromechanical Methods and Devices for Neural Rehabilitation by Nazita Taghavi, Greg R Luecke and Nicholas D Jeffery* in Evolutions in Mechanical Engineering The nervous system of most quadrupeds consists of two main systems: The Central Nervous System including brain and spinal cord and the Peripheral Nervous System which is a large nervous system running through the body, controlling all voluntary and automatic body movements [1,2]. Disease like peripheral neuropathy [3], damage in spinal cord [4] and severe stroke to head can cause numbness, weakness, trouble with grasping items, problems with walking and balancing or severe debilitating disabilities. Some of these diseases and symptoms can be treated by medicines, physical therapies and surgery ; however, in many cases, patients face permanent disabilities specially with those diseases related to brain and spinal cord injuries since these organs include a complex system of nerves and regeneration of those...

Analysis and Optimization of Lower Control Arm by Kale AR in  Evolutions in Mechanical Engineering Control arm in automotive vehicle acts as a linkage between sprung and unsprung mass of vehicle. Lower control arm is subjected to various loads. Due to this type of loading, there are chances of bending of control arm. Hence failure of lower control arm occurs. Weight reduction of vehicle component is one of the main concerns. The aim of the paper is to analyze and optimize the lower arm using finite element analysis. The model of lower control arm is done in CAD software. Static analysis of lower control arm is carried out in analysis software. Topology optimization of lower arm is performed for weight reduction. After topology optimization static analysis of optimized lower control arm is carried out. Results obtained from analysis where studied to check whether the design is within the yield strength. Cost analysis of existing and optimized lower control arm has bee...

Free-Piston Engine (FPE) Technology with Different Applications by Boru Jia in  Evolutions in Mechanical Engineering The free-piston engine (FPE) is a linear engine in which the requirement for a crankshaft system is eliminated and the piston assembly has a free and linear motion[1]. First proposed around 1930, FPEs were in use in the period 1930-1960 as air compressors and gas generators and provided some advantages over presenttime conventional combustion engines and gas turbine systems[2]. They are known to have a greater thermal efficiency (40-50%) than an equivalent and more conventional reciprocating engine (30-40%)[3]. A driving force behind the interest in free-piston engine generators is the automotive industry’s increasing interest in hybrid-electric vehicle technology. Much work has been undertaken by number of research groups worldwide, including the authors’ group, to explore the operation characteristics of FPEs[4,5]. https://crimsonpublishers.com/eme...