32.3.4. Gas Force
A gas force is defined with two bodies. This entity is created between a cylinder (an engine block) and a piston. This force occurred at a firing angle.
32.3.4.1. Modeling Options
Click the Gas icon of the Crank Connector group in the Crank tab. The user can see the Crank Component - Gas Force dialog box.
The user can select the position where the gas force is created in Component Index.
Click OK.
32.3.4.2. Properties
Click right mouse button on the gas force component to choose Properties of gas force. The user can modify the property of a gas force in the following dialog.
Angle Offset: The user can offset angle about the gas force profile.
No. of Cycles: The user can give pressure once the inputted cycles.
Scale Factor: The user can give pressure of the gas force profile as \(\mathbf{\times}\mathbf{\ }\)Scale Factor.
Area: If the user clicks Calc., this value is set automatically.
Use Step: The gas force can be applied as STEP function.
Profile: The user can modify a gas force profile using the profile grid. Also, RecurDyn/Crank offers some convenient method to modify the gas force profile. So, if the user clicks Draw, the Gas Force Profile Editor dialog is displayed on the screen. Also, the user can import or export the gas force profile data.
Applied on the Only Action Body: The gas force can be applied on the action body (usually piston) only.