This function is used to check the interference state between parts. The elements with interference will be displayed in grey. The control window of this function varies with the different file types. If the d3plot file is opened, the control window illustrated in Figure 5.15.1(a) appears. If the Nastran file is opened, the control window illustrated in Figure 5.15.1(b) appears.

             

(a)                                       (b)

 

Figure 5.15.1  User Control Window

1.       BY PART GROUPS

If this option is toggled on, the user needs to set the master part group and slave part group. This function is used to check the interference between two part groups. There is no checking of interference between parts within the part group. If this option is not toggled on, the user may select any part. This function will only examine the interference between any two parts.

2.       INITIAL INTERFERENCE

In some cases, the initial model has interference in itself. The user may need to ignore or keep the interference.

l  KEEP

Filter the interference from the initial model generated by the current step.

l  REMOVE

Plot all the interferences without filtering the initial model interference in the current step.

3.       CONTROL PARAMETER

l  PENETRATION

This option is used to check if there is penetration between elements of the parts.

l  CONTACT

This option is used to check if there is contact between elements of the parts.

l  CONTACT GAP

This option is only used for Contact interference. The value is the maximum allowable gap criterion to distinguish the contact interference.

l  TOLERANCE

This function is used to control the calculation accuracy.

4.       PAUSE AFTER FAIL

Once this option is selected, if there is interference in the animation state, the animation will pause automatically after one cycle.

5.       IDENTIFY INTERFERENCE

This function is used to identify the interfering element numbers and highlight them.