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1 分析对象分为两个部件,分别建立有限元模型,单独计算都没有问题;
. u$ \6 Y/ n; Q t' K2 采用assembly fem技术,将两个部件的有限元模型导入,生成最终的分析模型;& m/ W$ i0 [& C: a; v/ J( t7 l
3 为了检查模型能不能计算成功,两个部件间不联接,不加约束,进行模态分析
4 M/ k7 Z, D% R+ U8 X4 S& ?# U- {结果没有计算结果,f06文件中报出如下错误,请高手帮忙分析分析是什么原因:
' z: ^! ~. V& \ J; N(说明:模型规模1w单元,计算机4G内存,算这个规模的问题应该没有问题)4 U& g7 H5 A* a+ H2 b) u' |9 A
6 L/ D* l. u8 _& f, Y; _8 Y“*** USER FATAL MESSAGE 2050 (AUTOMPC)% V* Q6 S6 e" S5 R9 ^) ]" {0 d( M
AUTOMPC PROCESSING ABORTED DUE TO FAILURE TO EXTEND MEMORY SUFFICENTLY3 Y- {7 K3 u' B
TO KEEP THE EXPANDING CONSTRAINT MATRIX IN MEMORY. THIS IS A VERY. L( a3 P6 z/ ?' E! b' g3 Z; q
UNUSUAL OCCURENCE BUT CAN RESULT FROM A LARGE NUMBER OF DOFS BEING
8 D9 f8 ]3 H( s; e7 C5 @9 ] DEFINED IN THE U5 SET. INCREASING THE MEMORY ALLOCATION WILL RESULT IN
, s6 u( q7 R" L+ B3 p2 m1 i SUCCESS BUT THE AMOUNT NEEDED MAY BE MORE THAN IS FEASIBLE.- n, T$ |$ P& ~* W6 g
*** USER INFORMATION MESSAGE 4110 (OUTPX2)
, \8 P9 M* j! E4 V END-OF-DATA SIMULATION ON FORTRAN UNIT 12. ~2 j. K7 J% y, s8 P- F. l
(MAXIMUM SIZE OF FORTRAN RECORDS WRITTEN = 1 WORDS.)9 G B: x5 N( c
(NUMBER OF FORTRAN RECORDS WRITTEN = 1 RECORDS.)4 B0 Y3 Z6 {" o( R
(TOTAL DATA WRITTEN FOR EOF MARKER = 1 WORDS.)( Q# _3 h( S1 ?* X
1 APRIL 2, 2010 NX NASTRAN 1/17/09 PAGE 5' c, l7 d9 r1 b G
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