Nodal Clearance

Advanced > Power Train > Nodal Clearance

Description

This tool is used to calculate the clearance value at each node on the piston skirt face using height and theta clearance table. The total clearance of a node is a sum of height clearance, theta clearance and the general clearance. The height clearance of a node is calculated using its height(z) and height table by spline interpolation method. Similarly the theta clearance of a node is calculated using its theta and theta table by spline interpolation method. The clearance values can be exported either as field table or in file.

Symmetric Plane

Use this button to define a plane where theta is zero. A node that lies on this plane will have theta as zero.

Skirt Axis

Use this button to define the skirt axis. The orientation(+ or -) of height(z) value is determined using the skirt axis.

Pin Axis

Use this button to define the pin axis. This is needed to define the origin point where height(z) is zero.

Export options
  • Field table: This will export the clearance values as field table which will have node id and corresponding clearance value.
  • Inp file: This will export the clearance values as an inp file which will have node id and corresponding clearance value.

Steps

  1. Define the symmetric plane.
  2. Define the skirt axis.
  3. Define the pin axis.
  4. Select the skirt face.
  5. Specify the general clearance value.
  6. Import height clearance table.
  7. Import theta clearance table.
  8. Select the export option.
  9. Click Apply/OK button.

Example 1: Field table export

Example 2: Inp file export