AnsweredAssumed Answered

Model is unstable- Restraints may be inadequate?.. Help!!!

Question asked by David Mclellan on Mar 18, 2010
Latest reply on Sep 18, 2014 by Jared Conway

Hi there,


I am relatively new to SolidWorks Simulation so forgive me if I have made any glaring errors!!

Here is my problem, I have created a model that i am happy with, and it has meshed satisfactorily too. Now when i try to run the simulation it tells me that the model is unstable and that the restraints may be inadequate.


Two questions:


1.     By restraints, does it mean 'Fixtures' as in within Simulation, or do i need to step back to the model and 'Restrain' it better?

2.      Is there a way of knowing where it lacks the restraints, or is it simply a case of trial and error?..


I have tried restraining as many different parts, in as many different ways! as possible, still no joy!!


I have attached the file and would greatly appreciate it if someone would have a go at it themselves and let me know where i am going wrong!

Alternatively, point me in the right direction and tell me what im doing wrong!


Both would be equally appreciated!


Thanks in advance to anyone who spares the time to help!!!