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cinematism - fem analysis - simulation

  • Thread starter Thread starter smoking
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smoking

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Good morning.
I write to submit to you the analysis of a cinematism of which I would like to verify the functionality. This is a clamping clamp for machine tool with tilted floor clamping. I attach a schematization of the study. I would like to be able to verify the actual force (p=p1+p2) that is transmitted to the jaws (part. rl_d005), then to the piece, through the fork (part. rl_d002). I tried to do something both in the stress analysis environment and in dynamic simulation but I am not satisfied with the results. It would have to be able to slide the bites until the clamping of the piece and only then ask the system to return the actual value developed on the step of the jaw. I do not care that the value represents a limit of elastic deformation (so not a pressure in mpa on the piece or on the step-leave), but precisely the clamping force in n. every advice on what way to undertake is well accepted.
Thank you very much.
 

Attachments

in dynamic simulation, creates a 3d contact between the jaws and the piece to tighten,
apply a force on each hook in the closing direction (I set 100 n), launches the simulation. You'll see that the jaws will be sitting on the piece. now display the simulation chart and expand the 3d contact staff, select force max, this should return the value of the transmitted force to the piece. I visualize, after an initial impact that I would transcur, a force of 80 n.
 
Thank you diegus for the quick match.
Unfortunately, however, my goal is to apply a force to the fork and then verify the force that occurs on the jaws. such force is transmitted from the angle of inclination of the fork (in my case=35° - just like a wedge). Indicatively, applying to the fork a force of 100n should obtain a clamping force of about 140n (100/tg35°).
 
I have applied, as you say, a force that pushes the fork of 100 n, on the jaws comes a force of about 71 n.
 
ok tarkus, I followed your directions, I managed to get results but the maximum force on the left jaw is different from that on the right jaw; the result is not realistic, should be approximately 70n+70n. I also reset all constraints in an orderly manner but the simulation translates them as you want. A beastly mess! Now I can't even reset the simulation: When I move the fork, I go all the way. . I have seen that among the types of joints available there are no flat-floor joints (e.g. prismatic joints between standard joints). How do I introduce them directly from the simulation environment without working on the axieme or making sure that the system moves as I want? Sorry to stress.
 

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