找回密码
 注册
Simdroid-非首页
查看: 25|回复: 1

求助

[复制链接]
发表于 2006-11-15 21:40:17 | 显示全部楼层 |阅读模式 来自 山东青岛
我运行分析失败   好几个都是这样    怎么回事啊,下面是f06文件里的信息
*** SYSTEM INFORMATION MESSAGE 6916 (DFMSYN)
     DECOMP ORDERING METHOD CHOSEN: BEND, ORDERING METHOD USED: BEND
  
*** USER INFORMATION MESSAGE 4158 (DFMSA)
---- STATISTICS FOR SPARSE DECOMPOSITION OF DATA BLOCK KLL      FOLLOW
        NUMBER OF NEGATIVE TERMS ON FACTOR DIAGONAL =      2
        MAXIMUM RATIO OF MATRIX DIAGONAL TO FACTOR DIAGONAL =  1.5E+15 AT ROW NUMBER     482660
*** USER WARNING MESSAGE 4698 (DCMPD)
     STATISTICS FOR DECOMPOSITION OF MATRIX KLL     .
     THE FOLLOWING DEGREES OF FREEDOM HAVE FACTOR DIAGONAL RATIOS GREATER THAN
      1.00000E+07 OR HAVE NEGATIVE TERMS ON THE FACTOR DIAGONAL.
     USER INFORMATION:
     THIS MESSAGE MAY BE IGNORED IF NO GRID POINT IDS OR HIGH RATIO MESSAGES APPEAR IN THE TABLE ON THE NEXT PAGE.
USER   FATAL   MESSAGE 9050 (SEKRRS)   
^^^ RUN TERMINATED DUE TO EXCESSIVE PIVOT RATIOS IN MATRIX KLL.
^^^ USER ACTION:  CONSTRAIN MECHANISMS WITH SPCI OR SUPORTI ENTRIES OR SPECIFY PARAM,BAILOUT,-1 TO                                
     CONTINUE THE RUN WITH MECHANISMS.
发表于 2006-11-16 14:30:18 | 显示全部楼层 来自 上海
Simdroid开发平台
STATISTICS FOR DECOMPOSITION OF MATRIX KLL     .
     THE FOLLOWING DEGREES OF FREEDOM HAVE FACTOR DIAGONAL RATIOS GREATER THAN
      1.00000E+07 OR HAVE NEGATIVE TERMS ON THE FACTOR DIAGONAL.
这个好像是你边界约束条件加的不够的关系,条件不够,方程组没办法求解,我计算的时候也遇到过。你看看在LOAD/BC里的位移约束条件有没有漏掉!
您需要登录后才可以回帖 登录 | 注册

本版积分规则

Archiver|小黑屋|联系我们|仿真互动网 ( 京ICP备15048925号-7 )

GMT+8, 2024-3-29 09:31 , Processed in 0.028580 second(s), 13 queries , Gzip On, MemCache On.

Powered by Discuz! X3.5 Licensed

© 2001-2024 Discuz! Team.

快速回复 返回顶部 返回列表