Crimson Publishers-Mechanical Engineering

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...

Analysis of Hybrid Power Train System Based on Degree of Freedom by Kun Zhao in  Evolutions in Mechanical Engineering The hybrid power train is one of the most important technologies that have been developed to satisfy the challenging fuel economy and emission standards. A suitable configuration of hybrid power train should not only meet the requirements of vehicle kinematics and dynamics, but also meet the requirement of fuel economy and emission. For this purpose, a hybrid power train system should contain multiple power sources so that the speed and torque of the power sources can be properly distributed to achieve high system efficiency. To achieve optimal distribution of speed and torque, the system should have more speed DOF and torque DOF. Therefore, the hybrid power train system can be analyzed based on the viewpoint of degrees of freedom. https://crimsonpublishers.com/eme/fulltext/EME.000504.php For more open access journals in Crimson Publishers please ...

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...

Innovative Method in Recycling Wind Turbine Blades: Mini Review  by Seyed Hossein Mamanpush in  Evolutions in Mechanical Engineering During the past decades many researchers focused on finding a solution for the wind turbine blades that faced end of life but the main challenge for all the previous research was lack of acceptable pathway that was viable economically. Because these blades currently considered as a waste, spending lots of energy and chemical material for them is not an acceptable solution, that is why we suggest an innovative method for solving this problem by considering mechanically recycled wind turbine blades (rWTBs) as a feedstock for making second generation composites. https://crimsonpublishers.com/eme/fulltext/EME.000502.php For more open access journals in Crimson Publishers please click on link: https://crimsonpublishers.com For More Articles on Evolutions in Mechanical Engineering Please click on : https://crimsonpublishers...

Urban Performances: Hazards, Risks and Technological Developments  by Bouzid Boudiaf in  Evolutions in Mechanical Engineering Civilization is the advanced social development that is believed to owe its origin to human interaction in cities. But cities do not always have a civilizing effect. In history, the size of a population has corresponded to the availability of resources, particularly food and water. Ever since the Age of Agriculture, the stability of food supplies and the relative security of group settlements have decreased mortality rate and increased fertility. The consequent increased demand leads to exploitation of resources, which invariably exceeds the accessible supply. As a result, a cyclical population decline occurs, through starvation, disease, social and economic declination, migration and war (Facing The Future: People and the Planet 1997). Historical examples abound: recurring famines, the Black Death, colonization, the two World Wars. As cities hav...