Static Structural and Modal Analysis of a Cam...

Static Structural and Modal Analysis of a Camshaft for Different Materials by Using CAE Tools

Author Name : Pulle Venu, L. Manish Kumar, Madalam Akhil, Sandeep B N

ABSTRACT

A camshaft is a rotating cylindrical shaft used to regulate the injection of vaporized fuel in an internal combustion engine. These are occasionally confused with the crankshaft of the engine, where the reciprocating motion of the pistons is converted into rotational energy. Instead, camshafts are responsible for accurately-timed fuel injections required by internal combustion engines. Camshafts have multiple cams on them, which are used to open valves through either direct contact or pushrods. A camshaft is directly coupled to the crankshaft so that the value openings are timed accordingly. An engine camshaft can be made from many different types of materials. The materials used in the camshaft depend upon the quality and type of engine being manufactured. For most mass-produced automobiles, chilled cast iron is used. Not only it is cheap, but child cast iron is also extremely durable and reliable. This is because cold treating increases the strength and hardness of any metal that undergoes the process.

In this project, a camshaft will be designed for a 150cc engine and modeled through Catia V5 R21. The model analysis and static structural analysis have been done on the camshaftwith different materials in the Ansys workbench. Structural analysis and model analysis has been performed on the camshaft using different materials and seen that the EN8D material has shown the best results with the least deformation in the corresponding frequencies and having the weight higher than the cast iron but lower than the structural steel and EN24. It has shown the least stress value. So, EN8D is a suitable material for camshaft manufacturing.

Key Words: Camshaft, Failure analysis, Stress analysis, Dynamic model, Structural Analysis, Material Analysis.