Stress Analysis in Cylinder Liner for Tata Indica V2 Diesel Engine

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GRD Journals- Global Research and Development Journal for Engineering | Volume 5 | Issue 8 | July 2020 ISSN- 2455-5703

Stress Analysis in Cylinder Liner for Tata Indica V2 Diesel Engine Ajeesh A S Assistant Professor Department of Mechanical Engineering Vidya Academy of Science and Technology Technical Campus, Kilimanoor, Trivandrum, Kerala, India Robin David Assistant Professor Department of Mechanical Engineering Vidya Academy of Science and Technology Technical Campus, Kilimanoor, Trivandrum, Kerala, India

Thoufeek N A UG Student Department of Mechanical Engineering Vidya Academy of Science and Technology Technical Campus, Kilimanoor, Trivandrum, Kerala, India

Vinay V A UG Student Department of Mechanical Engineering Vidya Academy of Science and Technology Technical Campus, Kilimanoor, Trivandrum, Kerala, India

Mohammed Arif UG Student Department of Mechanical Engineering Vidya Academy of Science and Technology Technical Campus, Kilimanoor, Trivandrum, Kerala, India

Abstract The cylinder liner is one of the most important components in an internal combustion engine that possesses the intricate structural arrangements coupled with complex patterns of various operational loads. Due to the high combustion temperature produced during engine operation, the inner periphery of the cylinder liner has every chance of large stress accumulation. As a result, the surface wears off and there will be irregularities in the cylinder surface which in turn affects the engine’s performance. The function of a liner is to provide effective heat transfer and generate minimum stress within so that the engine can be highly durable and used in the long run. Thus it is important to optimize the thickness of the cylinder liner and cylinder liner material combination. The current study focuses on the influence of liner thickness and material combination on temperature distribution and stress conditions in the cylinder liner assembly. A 3D model of a Tata Indica V2 diesel engine was modeled and investigated the influence of parameters such as the thickness of liner and material combination on temperature distribution and stress conditions using ANSYS 14.0 under steady-state condition. The cylinder liner material and its thickness were optimized to obtain optimize heat transfer rate and to minimize the thermal stresses. The results showed that there is a minimum stress accumulation at the inner periphery of the cylinder liner when the liner thickness is 2.5 mm. The highest temperature was observed for the A383-Ductile iron combination which is 189.330C. It is also observed that liner and cylinder block made of aluminium alloys have minimum thermal stress and are least for the A356-A390 combination (36.78 MPa). Hence it can be concluded that Aluminium alloys with high thermal resistance are most suitable for liner material. Keywords- Internal Combustion Engine, Stress, Temperature Distribution, Aluminium Alloys

I. INTRODUCTION A cylinder liner is known as a cylindrical component that is attached to the engine block and forms a cylinder. A cylinder sleeve is a key component of a cylindrical engine. The most important functions of the cylinder liner are; to provide sliding surfaces for the piston, to resist wear from the piston and piston rings, resist high pressure and high temperature, and have high thermal conductivity. Cylinder liners are subject to considerable thermal stresses and mechanical load. To enhance the efficiency and life cycle of liners, the design and material selection must be optimized. The cylinder is a part of an engine, in which the piston moves up and down, and maybe separated by liners or an integrated part of the cylinder block. The first type is usually used in a CI or diesel engine, which can be replaced in the event of excessive wear on the cylinder, while the second type, which is usually used in a gasoline engine, which cannot be replaced and the cylinder block must be bored again [1]. Thermal stress on structural design plays a major role in engineering applications. Appropriate stress and deformation calculation avoids the system components from failure and thus optimizes the weight. Some internal combustion engines have aluminum cylinder blocks because of its lightweight and low thermal conductivity. However, the aluminum is too soft enough to be used as wall material. It is easily worn. The use of cast iron cylinder liner is a well-known solution to this problem. Besides, these are sleeves that are either originally cast into or later assembled into the cylinder block. The cylinder liners create more heat as they have direct sliding contact with the pistons, so they must be cooled by water or air. One-third of the total heat produced by

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