About Engineering Connection Specifications

You can define engineering connection specifications to detect and compute interferences between two parts or products during the simulation.

To define interference check specifications, open the Mechanical Systems Design app, and click the Engineering Connection command. In the Engineering Connection Definition dialog box, click the Interferences tab to define the check specifications.

To enforce interference checks during the simulation, you need to activate the engineering connection check specifications. In Mechanical Systems Experience, use the Interference Probe command to activate them.

In the Specifications tab, you can define the interference computation options. Interferences are then detected according to defined check options. To compute the interference status, the check specifications are taken from the Engineering Connection Definition dialog box.

If no check specifications are defined, the interference status is computed using the Clash specification (standard specification defined by default).

The interference computation between two components depends on the interference computation option selected in the Specifications tab.

If no check specifications are defined, the interference status is computed using the Clash specification (standard specification defined by default).

When you recompute interferences for an existing set of data, the result based on the modified specifications is generated.

If you modify the interference specifications defined for a couple of parts between two computations, then the previous interference is removed and a new one corresponding to the new specification is created. For example, you can decide to replace a Check No Clash specification by a Clash and Contact specification.

As a result, all user attributes on the previous interference are deleted.

If no interference specification is modified between the two computations, then the standard comparison behavior is applied.

When you compute an interference simulation, the generated results are based on the options specified in the Specifications tab. According to each configuration, you can obtain the following results:

Engineering Connection Computation	Specific Engineering Connection Option Verified	Parts Configuration	Expected Results
			Interference Creation	Status	Interference Update	Status
Check No Clash	Yes	Clash	Yes	KO	Yes	KO
		Contact	No	NA	Yes	OK
		Clearance <	No	NA	Yes	OK
Check Contact	Yes	Clash	Yes	KO	Yes	KO
		Contact	No	NA	Yes	OK
		Clearance <	Yes	KO	Yes	KO
Check Clearance	Yes	Clash	Yes	KO	Yes	KO
		Contact	Yes	KO	Yes	KO
		Clearance <	Yes	KO	Yes	KO
		Clearance >	No	NA	Yes	OK
No Check	Yes	Clash	No	NA	No	NA
		Contact	No	NA	No	NA
		Clearance <	No	NA	No	NA