Hi every one,

I have tried to model one system which is composed of sigma aluminum profiles but when i try to analyse it, Abaqus has given alot of tie constrain errors and when i try to look the natural frequency results its ranges are very low nearly 2 hz to 13 hz, i could not solve the problem and then  i import the part of my geometry to abaqus in one part this time it gives distortion error and again natural frequency of the system seems very low how can i overcome that warnings and problems i have pasted below some of the warnings  which i have faced could you help me and do you have any documentation which is about the common warnings and errors solutions for abaqus users, if you have  could you share it

Best Regards

for tie constraint

***WARNING: FOR *TIE PAIR (ASSEMBLY_CP-1-P45-45-2-1-ASSEMBLY_CP-1-P45-45-1-1),              ADJUSTED NODES WITH VERY SMALL ADJUSTMENTS WERE NOT PRINTED.              SPECIFY *PREPRINT,MODEL=YES FOR COMPLETE PRINTOUT.  *tie, name=ASSEMBLY_CP-2-P45-45-1-1-P45-45-2-1, type=SURFACETOSURFACE, adjust=YES

SLAVE NODE 4 INSTANCE P45-45-4-1 WILL NOT BE TIED TO THE MASTER              SURFACE ASSEMBLY_CP-4-P45-45-1-1. THE DISTANCE FROM THE MASTER              SURFACE IS GREATER THAN THE POSITION TOLERANCE VALUE

for one part

***WARNING: 6272 elements are distorted. Either the isoparametric angles are              out of the suggested limits or the triangular or tetrahedral              quality measure is bad. The elements have been identified in              element set WarnElemDistorted.

 ***WARNING: The aspect ratio for 280 elements exceeds 100 to 1. The elements              have been identified in element set WarnElemAspectRatio.