使用hyperworks做完前處理后生成bdf文件，在導入patran時報錯如下，求問如何解決？

Problem detected while importing the MSC.Nastran input file using SOL nifimp_v22

Do you wish to continue?

Selecting "Yes" will continue and attempt to import the file. Check the .log file for the problem detected.

Selecting "No" will halt the import, but will retain diagnostic files in the working directory. Check the resulting .f06/.err/.log file for the problem detected.

選擇YES后：Fatal errors encountered trying to read input file. The import process was aborted.

打開生成的log文件，提示如下錯誤：

 *** BEGIN MESSAGE ECHO (NIFIMP) 

 *** USER FATAL MESSAGE 307 (NIFIMP) at LINE 51764 

     ILLEGAL NAME FOR BULK DATA EN T RY

 *** USER FATAL MESSAGE 307 (NIFIMP) at LINE 51766 

     ILLEGAL NAME FOR BULK DATA EN T RY

 *** USER FATAL MESSAGE 307 (NIFIMP) at LINE 51788 

     ILLEGAL NAME FOR BULK DATA EN T RY

 *** END MESSAGE ECHO (NIFIMP) 

用notepad打開檢查bdf文件對應行，顯示均為空白

請問可能是什么問題？如何解決