Design Manufacturing and Cost Estimation of Camshaft Used In Two Wheeler (original) (raw)
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Design and Material Optimization of Camshaft In 150 CC Engine
International Journal of Scientific Research in Science and Technology, 2020
Camshaft is the key component of automobile engine valve timing mechanism, whose machining precision will affect overall performance of automobile engine. This paper presents a kind of camshaft journals multi-parameters measuring instrument based on the actual requirement of camshaft production. The camshaft measuring instrument was auto measuring instrument composed of pneumatic control system, precision measurement system and computer-aided measurement system, which was developed for measuring journal diameter, roundness, conicity, journal radial runout relative to center holes connection, and number 2, 3, 4 journal radial runout relative to number 1 and 5 journal center connection, etc. The measurement repetition and stability were perfect, it was fit for high precision and fast measurement at production site.
IRJET-DESIGN AND ANALYSIS OF CAM SHAFT FOR MULTI CYLINDER ENGINE
The cam shaft and its associated parts control the opening and closing of the two valves. The associated parts are push rods, rocker arms, valve springs and tappets. It consists of a cylindrical rod running over the length of the cylinder bank with a number of oblong lobes protruding from it, one for each valve. The cam lobes force the valves open by pressing on the valve, or on some intermediate mechanism as they rotate. This shaft also provides the drive to the ignition system. The camshaft is driven by the crankshaft through timing gears cams are made as integral parts of the camshaft and are designed in such a way to open and close the valves at the correct timing and to keep them open for the necessary duration. A common example is the camshaft of an automobile, which takes the rotary motion of the engine and translates it in to the reciprocating motion necessary to operate the intake and exhaust valves of the cylinders. In this work, a camshaft is designed for multi cylinder engine and 3D-model of the camshaft is created using modeling software pro/Engineer. The model created in pro/E is imported in to ANSYS. After completing the element properties, meshing and constraints the loads are applied on camshaft for three different materials namely aluminium alloy 360, forged steel and cast iron. For that condition the results have been taken has displacement values and von misses stresses for the static state of the camshaft. After taking the results of static analysis, the model analysis and harmonic analysis are done one by one. Finally, comparing the three different materials the best suitable material is selected for the construction of camshaft.
The issues of designing of construction features of the internal combustion cam engine
Combustion Engines, 2017
On the pages of the article described cam-piston mechanism developed as an alternative to piston crank mechanism. The main feature of this mechanism is that the piston is dwell in the TDC by the 30°CA and thus allows combustion of the fuel in constant volume. Authors presented the process of designing an analytical cam. The starting point for the calculation was the displacement of piston graph and the limits of acceleration and velocity values obtained. The results of strength calculations of the cam with regard to fatigue problems are also presented. Calculations were carried out in order to reduce the weight of the cam. For this purpose, the Finite Element Method was used.
Finite Element Analysis of Camshaft Using Inventor Software
International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2021
In this work the 3D model of the camshaft was done using Autodesk Inventor version 2021 with the literature data and finite element analysis is performed by applying restrictions and loads conditions, first by the absence of the torque and then by applying the torque. Three materials were analyzed in both situations: Cast Iron, Stainless Steel AISI 202 and Steel Alloy. Following the comparative study for the three materials, it can be specified the importance of the material for the construction of the camshaft.
The globalization and economic reforms have changed the face and pace of world economy in the last two decades. The main thrust is on product quality, faster design and development and finally cheaper product.At the same time, for optimal use of these technologies, one has to converge them in a better way. To sustain in the competitive market, industries have to update their knowledge, acquire new skills to offer world-class products. Design and analysis of complex components has reached new heights with the application of Finite Element Method.Automobile Industry has benefited a lot with the development of CAD/CAM technologies, from engine performance to aesthetic appeal. The lead time to manufacture automobiles has drastically reduced in the recent times, because of advancements in Geometric modeling and Computer Integrated Manufacturing (CIM).Design of Internal Combustion (IC) Engine parts plays a crucial role in improving the functioning of an automobile. Design and modifications of all the important components are carried out to increase the performance and thereby efficiency. Many redesign concepts have been emerged for cylinder head, connecting rod,crankshaft, piston, carburetor, Fuel injection pump and other engine components. specially redesign of Crankshaft is carried out to get enough strength to sustain the gas pressure and to have the better thermal stability. Also new researches are going on to select an alternate material to cope up with the existing load cases, to get higher compression ratio, to reduce the inertia forces to increase the speed of the vehicle (by reducing the weight of the reciprocating masses).
Development of Camshaft Machining Processes using Turning and Milling CNC Machines
Nowadays, camshaft is produced using CNC Cam Grinding machine in order to meet the specification especially for the cam lobe. However, the cost of manufacturing the product using the grinding machine alone is considered quite high according to one of the main motorcycle manufacturer in the country. Therefore, a proposal has been discussed to consider alternative processes that can be ventured to produce similar product as mentioned. This project studies the option of utilising the CNC machines available at the labs to manufacture the camshaft, which begins from regenerating the CAD data of the camshaft provided using a 3D Scanner unit. The scanned data is used to construct the part drawing using CATIA and machining simulation by CAM is used to generate the NC programming codes based on the turning and milling processes that have been selected. Several types of cutting tools are chosen for the rough cutting and finishing processes and these data are recorded for the cutting simulation. The camshaft will be supported using a custom-made fixture during the process and the machined part will be analysed according to the specifications and 3D images comparison will done using the scanner to get the actual percentage error.
Design and Optimization of IC Engine Crankshaft
International Journal of Engineering Sciences & Research Technology, 2014
The globalization and economic reforms have changed the face and pace of world economy in the last two decades. The main thrust is on product quality, faster design and development and finally cheaper product.At the same time, for optimal use of these technologies, one has to converge them in a better way. To sustain in the competitive market, industries have to update their knowledge, acquire new skills to offer world-class products. Design and analysis of complex components has reached new heights with the application of Finite Element Method.Automobile Industry has benefited a lot with the development of CAD/CAM technologies, from engine performance to aesthetic appeal. The lead time to manufacture automobiles has drastically reduced in the recent times, because of advancements in Geometric modeling and Computer Integrated Manufacturing (CIM).Design of Internal Combustion (IC) Engine parts plays a crucial role in improving the functioning of an automobile. Design and modifications of all the important components are carried out to increase the performance and thereby efficiency. Many redesign concepts have been emerged for cylinder head, connecting rod,crankshaft, piston, carburetor, Fuel injection pump and other engine components. specially redesign of Crankshaft is carried out to get enough strength to sustain the gas pressure and to have the better thermal stability. Also new researches are going on to select an alternate material to cope up with the existing load cases, to get higher compression ratio, to reduce the inertia forces to increase the speed of the vehicle (by reducing the weight of the reciprocating masses).
Design, Optimization and Finite Element Analysis of Crankshaft
Crankshaft is a crucial component in an engine assembly. Crankshaft is consisting of two web sections and one crankpin, which converts the reciprocating displacement of the piston to a rotary motion with a four link mechanism. Generally crankshafts are manufactured using cast iron and forged steel material. In this work to design and finite element analysis of crankshaft of 4 cylinder petrol engine of Maruti swift Vxi. of 1200 cubic capacity. The finite element analysis in ABAQUS software by using six materials based on their composition viz. Cast iron, EN30B, SAE4340, Structural steel, C70 Alloy steel and Aluminium based composite material reinforced with silicon carbide & fly ash. The parameter like von misses stress, deformation; maximum and minimum principal stress & strain were obtained from analysis software. The results of Finite element show that the Aluminium based composite material is best material among all. Compare the result like weight and Stiffness parameter. It is r...
IRJET, 2020
Crankshaft plays major role is working of an engine. It translates the reciprocating motion of the piston to rotational output. An engine without a crankshaft is unimaginable, it a high volume manufactured component so weight optimization of crankshaft will play major role in not only increasing the efficiency of an engine but also reducing the cost of productivity. Design, modelling and optimization of a crankshaft plays significant role in producing an efficient crankshaft. In this work 3D CAD model is created using Creo modelling software based on original dimensions of existing crankshaft of two wheeler motorcycle measured manually. Use of high end software produces a replica of component with least error. Stress Analysis is done using Ansys Mechanical workbench. Further topological optimization of the crankshaft is done to remove extra material with negligible changes in stress acting on crankshaft using ANSYS. In this work reduction of 5.05 % of weight of crankshaft is observed which is highly significant in increasing the productivity of an automobile industry by cost reduction.
The effects of camshaft modification on engine performance in automatic transmission motorcycle
THERMOFLUID XI: Proceedings of the 11th International Conference on Thermofluids 2020
Automatic transmission motorcycles have become a popular transportation choice in many countries. One of the methods to improve engine performance is by modifying the camshaft. In this report, we characterized the engine performance (power and torque) after modifying the camshaft's Lobe Separation Angle (LSA). The valve opening duration and the overlapping process became the main variables to be adjusted. The experiments used a 4-strokes engine with SOHC (Single Over Head Camshaft) taken from an automatic transmission motorcycle with 110 cc type. The actual engine capacity was 108 cc (with a bore of 50 mm and stroke of 55 mm), and the compression ratio was 9.2:1. This engine has a maximum torque of 13.28 Nm and a power of 9.1 HP (at 5393 RPM). To evaluate engine power and torque for both compared camshafts, a dynamometer was used. From this study, we can conclude that LSA plays a vital role in determining valve timing diagrams, thus influences engine performance. Power and torque curve peaks of the modified camshafts are obtained at a lower speed than that of the standard camshafts.