求助

书页间

*** USER FATAL MESSAGE 2026 (EMG)
     ELEMENT      402 GEOMETRY YIELDS UNREASONABLE MATRIX.
*** USER FATAL MESSAGE 2026 (EMG)
     ELEMENT      412 GEOMETRY YIELDS UNREASONABLE MATRIX.
*** USER FATAL MESSAGE 2026 (EMG)
     ELEMENT      422 GEOMETRY YIELDS UNREASONABLE MATRIX.
*** USER FATAL MESSAGE 2026 (EMG)
     ELEMENT      510 GEOMETRY YIELDS UNREASONABLE MATRIX.
1    MSC.NASTRAN JOB CREATED ON 14-JAN-13 AT 10:35:47  
这个USER FATAL MESSAGE 2026 (EMG)到底是什么错误，请教懂的人指教非常感谢。