Hi everybody,
I'm a new user of Inventor and my company asked me to analyse their products (doorways in PVC and aluminium) with the stress analysis module of Inventor 2015.
I started by modeling a prototype (a sliding type) we already have mounted in order to compare my results with a concrete case but I cannot obtain the value of deformations I have with the prototype. I put a load of 100N on the top of my model and I consider the gravity.
I have simplified my model and I had the thin body problem so I have made the "find thin bodies" option, my resultats are better but I still am far from the real results.
I have soft springs and my assembly is divided into several independent pieces but the efforts are visually transmitted as they should be.
I simplified the wheels by 2 rotations and contacts sliding/ no separation. I have checked the material several times and even put caracterisitcs lower than them should be.
I have attached several pictures if it can help you.
I would be very glad if you could tell me what could be wrong because I'm on this for several weeks and I'm starting to feel like hopeless.
Solved! Go to Solution.
Solved by raviburla. Go to Solution.
I alsotried the same assembly without the blocs holding the doorway and the soft springs keep it from simply falling to the ground. I suppose it's the cause of my problem but I cannot find how I could remove them or just lower their stiffness.
Hi,
Would you be able to post your model (or a simplified one) and the expected results? Perhaps the setup needs to be modified to achieve expected solutions, we will be able to look into those issues if you can post your model.
Thanks,
Ravi Burla (Autodesk)
I've attached my model but the FEA folder was too large. I should have around 200mm in maximum deformation at the extreme top (where my load is applied).
Thank you for your answer, in fact I'ld like to study the displacements supposing that we stay in elastic deformations, but I'll have to study stresses as well, so if I have understood what you have written :
- I can study displacements in Dynamic Simulation as long as I stay in the elastic area and I won't be able to evaluate the stresses that way
- I can study stresses in the stress analysis but my displacements won't be realistic