ANSYS中划分网格出错？ 50

用mesh画网格，运行出错，怎么解决呢

(DP 0) Summary of the simulation:

        The computation failed.

     *  Expert tool diagnostics  *

     Out of convergence disk

     *  Expert tool diagnostics  *

     The problem F.E.M. Task     has not converged.

     *  Expert tool advice in order to optimize the simulation  *

     At least one bad element has been detected in the mesh.      The worst has the following feature(s)       Too small angle in element 35986, (x,y,z) = (5.8216e-05, 0.0014438,  0.005265).

     This can lead to local inaccuracies and possibly convergence difficulties.  It is strongly recommended to fix the mesh.