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  • Users: tito662
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  1. tito662

    Using Non linear spring elements in IDEAS

    When i use Non linear spring elements in IDEAS, i must define a dds file (notepad) in which i define the functioning points of the spring (displacement, load).. However, all say that the load in the dds file (for the spring) must be given in mN even if the load in my file is given in N..is this...
  2. tito662

    Convergence problem

    How do i adjust the rotation tolerance?
  3. tito662

    Convergence problem

    I m modelling the rolling elements of a bearing by two non linear traction springs between the center of curvatures of the raceways.. Moreover, each center of curvature is coupled to contact zone'(modelled by rigid shells) by a rigid beam . I have divergence and the following message AVERAGE...
  4. tito662

    Warning on boundary conditions

    Ure right Thanks for ur help
  5. tito662

    Solver problem numerical singularity when tying surfaces together

    I m using tie When i changed the shell elements to S8R6 (6 degrees of freedom for the shell), i dont have this warning anymore. Do u advice me to use shell to solid coupling?
  6. tito662

    Distributing coupling elements

    If i have to transmit an equivalent load(moment+force) from a reference node to the nodes of a half circular surface.(outer ring 480 mm, inner ring 435 mm), should this reference node be at the centroid of the surface?? and is it necessary to use a cylindrical Coordinate system for coupling?
  7. tito662

    Solver problem numerical singularity when tying surfaces together

    one face of a part instance meshed with S8R5(8 node doubly curved thin shell, reduced integration, 5 dof per node) is tied(tie surface) to a face of a part meshed with C3D8R elements. During the calculation, i have this warning : SOLVER PROBLEM. NUMERICAL SINGULARITY WHEN PROCESSING NODE...
  8. tito662

    Warning on boundary conditions

    Yes Yomann i have tie surfaces and coupling.. Do u think i have the warnings cause i m trying to constrain nodes which are tied to other constrained nodes due to the tied surfaces?
  9. tito662

    bearing preload design

    Well ive worked on preloaded bearings.. I advice u to look at the publication of Amasorain for the calculation of the contact angle in a preloaded bearing..
  10. tito662

    Warning on boundary conditions

    It is a 3D problem... When i define symetry i have to block translation along direction 3 and rotation around axis 1 and 2(degrees of freedom 4 and 5)...For parts neshed with solid elements: I have the following message for solid elements: Degree of freedom 4(or 5) is not active in the model on...
  11. tito662

    Warning on boundary conditions

    I m defininf symetry boundary conditions on a structure but Abaqus is giving me the following message on every node at the symetry section and is ignoring the symetry condition DEGREE OF FREEDOM 3 IS NOT ACTIVE ON NODE 42284 INSTANCE RAIDISSEUR-1 - THIS BOUNDARY CONDITION IS IGNORED Can anyone...
  12. tito662

    Distributing coupling elements

    i m modeling the structure of a wind turbine. The external equivalent load is applied at the center of the blade... If i want to use distributing coupling to transmit this load from this center to the upper surface of the blade, can i define the distributing coupling and the load in the...

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