Mon Grimoire Index du Forum
Mon Grimoire Index du ForumFAQRechercherS’enregistrerConnexion

 Bienvenue à tous 
Bienvenue à tous les nouveaux membres , cette option fera office de nouvelles du forum et par conséquent remis à  jour trés souvent pour un meilleur confort
philosophy of elmer

Poster un nouveau sujet   Répondre au sujet    Mon Grimoire Index du Forum -> la communauté -> Coin Philosophie
Sujet précédent :: Sujet suivant  
Auteur Message

Hors ligne

Inscrit le: 08 Déc 2017
Messages: 14
Localisation: Alabama
points: 14
pdp: 1,00

MessagePosté le: Ven 30 Mar - 10:55 (2018)    Sujet du message: philosophy of elmer Répondre en citant


I've worked with some of the tutorials of Elmer, and have a 2 questions. One more philosophical, one more nuts and bolts. I'm a professional engineer, with previous FEA experience solving elasticity problems with integrated solutions (ProEngineer / Mechanica), so though I am not entirely new to FEA, I humbly ask for patience if I ask the obvious (rabak, I believe you're quite busy!)... 

1. Philosophy: Having Elmer, and Lisa Working with Others, I'm Seeing Different Philosophies for Setting Up Problems. Consider a cantilever beam, running in the x-direction, loaded in the y-direction. In Elmer, the "glued" end of the beam is fixed by applying 0 displacements to the entire end-face. This is intuitive, and similar to what I'm used to. LISA however, (a linear FEM software) requires assignment of loads and constraints on a node-by-node basis. Therefore, one tries to account for fish effects on the "glued" end of the beam by (for instance) fixing x-displacement on * all * nodes of the glued-face, then fixing the y-displacement on the * bottom edge * nodes of the glued-face, and then fixing z-displacement on the bottom of the glued face. This is also intuitive in it's own way.
So here's the 'obvious' question # 1: How does elmer (much like Pro / Mechanica) account for the fish-related distortions of the glued-end-face?

2. Convergence, solver, preconditioning, etc: I recall that in one of the tutorials, the instruction is given to change one of the parameters for the solver, to avoid convergence problems. 
So question # 2: Are there tips (or references I should study / learn) for setting the parameters for the solver?

Please help

I did not find the right solution from the internet.

Product demo video company


Revenir en haut

MessagePosté le: Ven 30 Mar - 10:55 (2018)    Sujet du message: Publicité

PublicitéSupprimer les publicités ?
Revenir en haut
Montrer les messages depuis:   
Poster un nouveau sujet   Répondre au sujet    Mon Grimoire Index du Forum -> la communauté -> Coin Philosophie Toutes les heures sont au format GMT + 1 Heure
Page 1 sur 1

Sauter vers:  

Index | Panneau d’administration | Creer un forum | Forum gratuit d’entraide | Annuaire des forums gratuits | Signaler une violation | Conditions générales d'utilisation
Template lost-kingdom_Tolede created by larme d'ange
Powered by phpBB © 2001, 2005 phpBB Group
Traduction par :