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  1. USBdroid

    Zero Pivot and Numerical singularity problems

    I add here a picture of the model to help. I now solved the numerical singularities by replacing the beam element in the wires by trusses and the zero pivot warnings by being smarter when I specify MPC constraint. As well what help was to add stabilisation by damping factor of previous step...
  2. USBdroid

    Zero Pivot and Numerical singularity problems

    Hi everybody, I have problems in analyzing my model; I am trying to model a mast supported by cables. So I modelled every cable, the mast and spreaders as independent parts with beam elements. I connected everything using MPC constraints (pin for cable to mast intersection, and tie for...
  3. USBdroid

    Edge selection trouble

    Hi everybody, first of all, apologies for not cutting the script down. I managed to solve my problem: I was just missing a bracket and a comma to make abaqus recognise a GeomSequence; ###PARTITIONING BOTTOM OF MAST FOR SQUARE SECTION### p = mdb.models['Model-1'].parts['Mast'] e =...
  4. USBdroid

    Edge selection trouble

    Hi everybody, I am trying to write a script to create the geometry of a sailing boat mast. Essentielly it consists of a couple datum points and wires. One wire is to represent the mast (later to be meshed as a beam element). Since the mast has a section that varies along the length (rectangular...

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