Abstract
A connecting rod is the core component of an engine which has a function to transmit power released from combustion from the piston to the crankshaft. Deformation is the most commonly occurring damage to connecting rods. The connecting rods made of structural steel, aluminium alloy and titanium alloy were designed using Autodesk Inventor and analysed using ANSYS. The simulations showed the following results. The connecting rod made of structural steel had the highest maximum stress of 82.791 MPa. The connecting rod made of aluminium alloy had the highest maximum deformation of 0.84071 mm. The three connecting rod materials had the same maximum safety factor, i.e. 15.
Highlights
According to [1], a piston in petrol combustion engine serves to convert petrol into heat which eventually becomes mechanical power
The possible causes of failures in connecting rods are varied; some of which are hardness of the connecting rod and crank pin, distance between the connecting rod and crank pin bearing beyond the specified limit, high stresses at the critical area, design of the connecting rod, and lack of lubricating oil at the sliding interfaces [2]
Materials used for making connecting rods are structural steel, aluminium alloy, and titanium alloy
Summary
According to [1], a piston in petrol combustion engine serves to convert petrol into heat which eventually becomes mechanical power. A connecting rod is one of the most significant components that has a function to transmit the power to the crankshaft to run the engine. The mechanical translational motion of a piston may cause damage to connecting rods. The magnitude of deformation experienced by connecting rods varies depending on material properties, size, and force received describes. [4] explained that connecting rods are generally made of steel, but titanium or aluminium based composites are more commonly used recently. According to [6], the FEA analysis is a work simulation that provides insight into the behaviour of connecting rod components under loading in terms of stress, deformation, and safety factors. Materials used for making connecting rods are structural steel, aluminium alloy, and titanium alloy.
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