Piston motion equations
The motion of a non-offset piston connected to a crank through a connecting rod (as would be found in internal combustion engines), can be expressed through several mathematical equations. This article shows how these motion equations are derived,…
OVERSQUARE VS UNDERSQUARE
A closely related topic to rod ratio is that of bore and stroke. If the bore and stroke dimensions in an engine are the same (say a 4.00 inch bore…
BEST ROD RATIO?
Essentially, there is no “best” rod ratio for any given engine. Some say to use the longest rods that will fit the engine to make the most mid-range and peak…
What is Bore-Stroke Ratio?
Bore-Stroke Ratio is the ratio between the dimensions of the engine cylinder bore diameter to its piston stroke-length. The cylinder bore diameter divided by the stroke-length gives the Bore-to-Stroke ratio.…
How Engine Capacity affects its performance
The engine's capacity plays an important role in determining various engine outputs such as engine power, torque, and mileage. It is the volume, or in other words, the space available inside the cylinder…
What is Engine Capacity (cc)
The term “cc” stands for Cubic Centimeters or simply cm³ which is a metric unit to measure the Engine's Capacity or its volume. It is the unit of measuring the volume of…
What is the Mean Effective Pressure (MEP) of an engine ?
The Mean Effective Pressure (MEP) is a theoretical parameter used to measure the performance of an internal combustion engine (ICE). Even if it contains the word “pressure” it’s not an actual pressure measurements…
Curve Interpolation Methods and Options
The RMC supports several interpolation methods and options to satisfy a wide range of curve applications. Interpolation Methods The interpolation method is specified in the Properties pane in the Curve…
Vehicle acceleration and maximum speed modeling and simulation
In engineering, simulations play a critical part in the design phase of any system. Through simulation we can understand how a system works, how it behaves under predefined conditions and how the…
Force Required to Accelerate a Load
The load on a hydraulic cylinder (or motor) consists of these three components:(1). Normal load resistance, where fluid power is converted into mechanical work exerted against the load.(2). Friction resistance,…
