ansys中的.full文件中如何看刚度矩阵和质量矩阵（转）

http://fffff-2001.blog.163.com/blog/static/15507529200722492917460

Q：请问ansys中的.full文件中如何看刚度矩阵和质量矩阵？

A：you can use the following steps to extract structural matrices:

1. run a modal analysis to get a file.full

2. generate a temp folder

3. copy binlib.dll, rdwrt.bat, rdfull.f, binlib.lib to temp folder (these files can be found in your ansys system)

4. rename rdfull.f to userprog.f

5. at command prompt, run: rdrwrt userprog

6. at command prompt, execute: userprog.exe

7. you can get MASS.MATRIX and STIFFNESS.MATRIX.

A：jobname.full是二进制文件，它是以标准文件头作为第一条记录，以后的若干条记录都有固定的模式，在Interface Guide中对jobname.full的格式做了详细的介绍。而且ANSYS提供了一系列的调用方法能访问各二进制文件，不是很难的事。

建议你仔细研读一下bintst.f，好象还有几个重要的子程序是binrd.f,binwrt.f

ansys帮助文档：

Read a Matrix and a Load Vector from a FULL File and Solve

注意其中的排序方式转换。
! READ THE STIFFNESS MATRIX FROM THE FULL FILE
*SMAT,MatK,D,IMPORT,FULL,file.full,STIFF

! READ THE MAPPING TABLE: INTERNAL -> BCS
*SMAT,Nod2Bcs,D,IMPORT,FULL,file.full,NOD2BCS

! READ THE LOAD VECTOR FROM THE FULL FILE
*DMAT,VecB,D,IMPORT,FULL,file.full,RHS

! ALLOCATE THE SOLUTION VECTOR IN BCS SPACE BY SIMPLY COPYING B
*DMAT,VecX,D,COPY,VecB

! FACTORIZE A USING THE BOEING SPARSE SOLVER FUNCTIONS
*LSENGINE,BCS,MyBcsSolver,MatK
*LSFACTOR,MyBcsSolver

! SOLVE THE LINEAR SYSTEM
*LSBAC,MyBcsSolver,VecB,VecX

! CONVERT THE SOLUTION TO THE INTERNAL SPACE
*MULT,Nod2Bcs,T,VecX,,XNod

! PRINT THE SOLUTION
*PRINT,XNod

! FREE ALL OBJECTS
*FREE,ALL