How are connecting rods calculated?

Measure the length of the metal between the end of the connecting rod and its inner diameter, taking the measurement as close to center of the rod end as possible. Perform this measurement on both ends, then add the numbers together. Add the total to the sum of the halved inner diameters.

What is the manufacturing method for connecting rod?

The current manufacturing processes for connecting rods by fracture split drop forging and fracture split powder forging are highlighted and compared based on current information. A connecting rod in a high performance engine is subjected to inertial forces and bearing loads.

What does the connecting rod do?

The con-rod connects the piston to the crankshaft to transfer combustion pressure to the crankpin. There are bearing portions at both ends, the piston side is called the small end, and the crankshaft side, the big end.

What are the dimensions required to design a connecting rod?

The literature review showed that there are three fundamental dimension to be take into account on a connecting rod design. These are; – Small end inner diameter, – Cross-section, – Big end inner diameter. These dimensions change with respect to type and properties of engine.

What is the length of connecting rod?

The rod length is usually somewhere between 1.4 and 2.2 times the stroke length. With a shorter connection rod, you get a larger angle, higher side loads on your big end/piston, potentially more vibrations and a shorter engine.

What is the material of connecting rod?

The materials used for connecting rods widely vary, including carbon steel, iron base sintered metal, micro-alloyed steel, spheroidized graphite cast iron. In mass-produced automotive engines, the connecting rods are most usually made of steel.

What are the types of connecting rod?

Types of Connecting Rod

• Plain type rod.
• Fork and blade rod.
• Master and slave rod.
• Billet conrods.
• Cast rods.
• Forged rods.
• Powered metal conrods.

What are the four types of connecting rods?

What type of bearing is used on connecting rods?

Plain bearings are used in main bearings and connecting rod bearing. Its main application is in the piston and connecting rod in engine.

Which formula is used in designing a connecting rod?

Rankine formula
A connecting rod is a machine member which is subjected to alternating direct compressive and tensile forces. Since the compressive forces are much higher than the tensile force, therefore the cross-section of the connecting rod is designed as a strut and the Rankine formula is used.

What is the best rod ratio?

Some engine builders say a “good” rod ratio is anything 1.55 or higher. Production engines may have rod ratios that range from 1.4 to over 2.0, with many falling in the 1.6 to 1.8 range. Four cylinders tend to have lower rod ratios (1.5 to 1.7 range) while many V6s have somewhat higher rod ratios of 1.7 to 1.8.

What is an connecting rod and how is it made?

Connecting rods are manufactured by means of forging. Being one of the most integral parts in an engines design, the connecting rod must be able to withstand tremendous loads and transmit a great deal of power. In a reciprocating piston engines, connecting rod connects the piston to the crank or crankshaft.

What is the function of connecting rod in reciprocating piston engine?

In a reciprocating piston engines, connecting rod connects the piston to the crank or crankshaft. Together with the crank, they form a simple mechanism that converts reciprocating motion into rotating motion.

What software do you use to model the connecting rod?

A parametric model of Connecting rod is modeled using CATIA V5 R19 software and to that model, analysis is carried out by using ANSYS 13.0 Software. Finite element analysis of connecting rod is done by considering the materials, viz… Forged steel.

Why are connecting rods not rigidly fixed at either end?

They are not rigidly fixed at either end, hence the angle between the connecting rod and the piston changes as the rod moves up and down and rotates around the crankshaft. Connecting rods are manufactured by means of forging.