cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Showing results for 
Search instead for 
Did you mean: 

Bonded Interface

Newbie

Bonded Interface

I was trying to make this car jack, but when I tried to run the static analysis it gave me the error bonded surface. I am not sure what went wrong since I use the same part twice only one of them gave me the error. I have attached the pic and model. The red circle is the bonded interface

Thanks

bonded+interface.PNG

15 REPLIES 15

Re: Bonded Interface

I don't have anything that opens RAR (I avoid them).

Q: What kind of contraint are you using on the hinge point?

Re: Bonded Interface

I used axis coincidence aline with the center bar and used distance to fix a specific location on the bar.

Re: Bonded Interface

What if you use a mechanism "pin" constraint?

Re: Bonded Interface

Tried same thing happens. I read something about setting the tolerance to absolute to avoid this kind of problem do you happen to know how to do that ?

Re: Bonded Interface

You have to enable absolute accuracy in config.pro and then you can set it in Manage Model

enable_absolute_accuracy yes

File>Prepare>Model Properties>Material>Accuracy.

Re: Bonded Interface

The models complains of outside references. There is also significant alignment problems as shown in the image:

jack.JPG

I suspect there are assembly problems and some sort of loop that is confusing the assembly. You might try building this at a single level assembly with all parts fully constrained. If the analysis does not require forces on the leadscrew, you might fix the middle hinges with a temporary part where the hinge pins and the leadscrews are all one part. This will still give you some feedback as the loads on the leadscrew.

What version are you using? Do you have an analysis extension, or are you using the core Creo analysis "lite"?

Re: Bonded Interface

I tried the single level assembly at first time and got an error saying not enough constrain while running the analysis. But I FIXED every part using the "fix" constrain. I did it again in the single level and got the same problem saying bonded interfaces.

Re: Bonded Interface

I rebuilt the jack with mechanism. It is in Creo 2.0. See if it works better. You can drag the top base with Drag Component to set the position you want to do the analysis on. See attached.

All the files are renamed, so nothing should be overwritten.

Re: Bonded Interface

I'm having a little fun with your model...

Video Link : 3994

You can modify the constraint on the threaded rod to hold a Distance for the analysis. Otherwise it might simply collapse.