CFD Analysis and Aerodynamic Effects of Add-On Devices on an Audi TT Vehicle Model
Dynamic Response Analysis of Linear Motion Stage with Track Roller Guides
Design and Development of Manual and Voice Assisted Turn Indicator for Automobiles
Vehicle Health Inspection with Enhanced Auto Diagnostics and Maintenance
Dynamic Response Characteristics of Linear Translation Stage: A Review
A Review on Mechanical and Tribological Characteristics of Hybrid Composites
Design of Oil-Ammonia Separator for Refrigeration Systems
Design and Experimental Investigation of a Natural Draft Improved Biomass Cookstove
Progressive Development of Various Production and Refining Process of Biodiesel
Optimization of Wire-ED Turning Process Parameters by Taguchi-Grey Relational Analysis
Evaluation Of Mechanical Behavior Of Al-Alloy/SiC Metal Matrix Composites With Respect To Their Constituents Using Taguchi Techniques
Multistage Extractive Desulfurization of Liquid Fuel by Ionic Liquids
Isomorphism Identification of Compound Kinematic Chain and Their Mechanism
Development of Electroplating Setup for Plating Abs Plastics
A Comprehensive Review of Biodiesel Application in IDI Engines with Property Improving Additives
Welding of Magnesium (Mg) alloys by fusion techniques is complex due to the highly reactive nature. Mg quickly oxidizes in the presence of oxygen. Therefore, solid state fusion welding processes is the best suitable technique to weld Mg alloys. In this work presently, AZ91 Mg alloy sheets were joined by Friction Stir Welding process (FSW) and the joint quality has been assessed by micro structural studies and micro hardness measurements. From the results, it has been observed that the joint has been free from defects and the large inter metallic which appeared in base alloy has been decreased in size. These observations suggest the dissolution of Al in Mg matrix. Micro hardness measurements also confirm the increased hardness in the weld zone which can be attributed to the effect of grain refinement and the development of super saturated grains in the weld zone.
Machining of AISI 4140 steel with conventional tools under dry cutting conditions, results in reduced tool life and poor surface quality due to their superior mechanical properties. The present work is focused on the machinability improvement of AISI 4140 steel material by reducing the decremental effects by employing the texture tool under wet condition. In the current work, new textured tools were developed by having circular pit holes over the tool rake face and the turning performance characteristics have been compared with both textured and conventional tools under wet cutting condition respectively. Results of the present study indicates that compared to conventional tools, textured tools significantly diminished the cutting temperature, tool wear and surface roughness to a maximum of 18%, 9% and 15% under wet cooling condition. Further, it has been observed that circular dimple texture design act as coolant storage under wet condition leading to better cooling condition at the cutting zone.
The analysis of IC engine piston is carried out using the finite element method to determine stress and displacement distribution due to the flue gas pressure and temperature. Simulation of an IC engine piston provides the necessary details which may be further used in the design process. The piston is subjected to mechanical and thermal loads under service conditions which need to be controlled. Temperature, type of fuel, engine speed, piston material etc. affects the performance of an IC engine. Deformation behavior of the piston material is analyzed through the CAE software and the response data is generated. A comparative study has been also carried out between an alloy and metal matrix composite which were used as a piston material. Response surface optimization is conducted using Taguchi design of experiments to determine design points. Under structural loading conditions, the metal matrix composite (MMC) performs better than the eutectic alloy. The piston crown area has been subjected to maximum deformation under structural and thermal loading conditions.
The engine's interpretative thrust production, such as nozzles, has been restructured for higher staging. Modern expansions of combustion systems, such as rocket nozzles, will be adjusted to meet the needs of today's applications. The bell and dual bell nozzles are an example of such advancements. From the four fundamental types of bell nozzles, one such bell nozzle is chosen. The parabolic shape optimised the thrust of an axisymmetric nozzle. The basic goal of constructing a bell nozzle is to produce as little shock waves as possible. A dual bell is explored and studied in this work using CFD flow. The main focus is on the design and analysis of dual bells based on altitudes ranging from 2, 5, 7, 10, 12, 15, inlet mass flow rate of 5 kg/s, inlet temperature of 1200 K, and NRP value of 12. We had performed simulation to the design and flow simulation with the help of SolidWorks 2020 by adjusting the value of inlet pressure of the fluid and calculating with the help of ambient pressure with regard to altitude. Flow simulation is done in a three-dimensional model.
Suspension system acts as an important mechanical structure in vehicles to achieve ride comfort and stability. This suspension system comprises of a system of springs, dampers and linkages which connects the chassis to its wheels. The performance of the suspension system directly affects the ride comfort and handling safety of the vehicle. Therefore, the suspension system of a vehicle needs to be durable, light weight, efficient and structurally stable. Researchers are optimizing and refining their suspension system designs in search of perfect ride comfort coupled with stable race-worthy handling. In the suspension system, the control arm acts as most important part and it is assumed as the research object now-a-days. This paper covers essential aspects of vehicle suspension systems. This paper begins with the introduction of the role of suspensions in cars and a description of their main components and types of suspension system. Then, a literature review on recent developments in the design and analysis of control arm including their disadvantages and advantages has been provided. Finally, the scope of future work in the design and analysis of control arm is discussed.