Topic: about the problem on eigen analysis by using LTRSpace element
Hello All,
I have done a eigen analysis by using LTRSpace element. The output is “Matrices are not positive definite” with "EigenValueDynamic nroot 10 rtolv 1.e-6 nmodules 1 stype 0"。 But I don't know what the problem is. When I changed the stype as "EigenValueDynamic nroot 10 rtolv 1.e-6 nmodules 1 stype 1", the output is as following.
Eigen Values (Omega^2) are:
-----------------
5.97975441e-06 6.71889742e-06 7.66905405e-06 7.86784208e-06 7.97187807e-06
8.25501246e-06 8.73372381e-06 8.77186094e-06 1.42822084e-05 1.46772119e-05
I use the international system of units. The grid is partitioned by Salome 9.3.0, and then the input file is generated by Unv2oofem convertor.
Thank you very much for your help.