请教大神dynaform模拟热成型遇到的问题

大家好，下面就是我遇到的问题，遇到问题后，我又重新细化了网格以及减小了时间增量步，这次算的时间长一些，但还是出现这个问题，想请教下大神们，谢谢！

*** Error 40352 (SOL+352)

from thermal cojugate gradient solver ierr= 2

ierr=1 => isufficient storage allocated

ierr=2 => method failed to converge in itmax steps

ierr=3 => ITOL or N incorrect

ierr=4 => user tolerance set too tight

ierr=5 => preconditioning matrix not positve definite

ierr=6 => stiffness matrix not positvedefinite

193967 t 6.1499E-02 dt 1.00E+06 write d3plot file 09/01/14 17:28:28

193967 t 6.1499E-02 dt 1.00E+06 write d3plot file 09/01/14 17:28:28