从 Abaqus 导出热载荷

Question

我解决结构分析并仅在节点中应用温度。我想从 Abaqus 导出全局载荷矢量。文件输入看起来像这样：

**  Abaqus/fromAnsys 6.17-1
** 
**  reading Ansys data from: C:\temp\file1.cdb
**    creating Abaqus input: C:\temp\file1.inp
**   writing diagnostics to: C:\temp\file1.log
** 
**  Ansys Commands processed:
**       command   number
**  ------------   ------
**          ACEL        1
**        ANTYPE        1
**            BF        1
**         CGLOC        1
**       CGOMEGA        1
**        DCGOMG        1
**        DOMEGA        1
**        EBLOCK        1
**            ET        1
**         EQSLV        1
**        MPTEMP       13
**        MPDATA       13
**        NBLOCK        1
**         OMEGA        1
**          *SET       35
**          TIME        1
**  Ansys Commands NOT processed:
**       command   number
**  ------------   ------
**        ALPHAD        1
**         BETAD        1
**        BFUNIF        1
**        CRPLIM        2
**        DMPRAT        1
**           DOF        1
**         *ELSE        1
**        *ENDIF        1
**         ERESX        1
**        EXTOPT        3
**        FINISH        1
**           /GO        1
**           *IF        1
**          IRLF        1
**          KUSE        1
**             N        2
**          NCNV        1
**         NEQIT        1
**         /NOPR        1
**        NUMOFF        5
**        /PREP7        1
**       SECTYPE        1
**        /TITLE        1
**          TREF        1
** 
*Heading
** Job name: Job-1 Model name: file1
** Generated by: Abaqus/CAE 2017
*Preprint, echo=NO, model=NO, history=NO, contact=NO
**
** PARTS
**
*Part, name=PART-1
*Node
      1,           0.,           0.,           0.
      2,           1.,           0.,           0.
      3,           1.,           1.,           0.
      4,           0.,           1.,           0.
*Element, type=S4R
1, 1, 2, 3, 4
*Elset, elset=ES2_M1_E1_R1
 1,
** Section: Section-1-ES2_M1_E1_R1
*Shell Section, elset=ES2_M1_E1_R1, material=MATERIAL-1
0.0001, 3
*End Part
**  
**
** ASSEMBLY
**
*Assembly, name=Assembly
**  
*Instance, name=PART-1-1, part=PART-1
*End Instance
**  
*Nset, nset=Set-1, instance=PART-1-1, generate
 1,  4,  1
*End Assembly
** 
** MATERIALS
** 
**  ---------------------------------------------------
**  ---- *MATERIAL ------------------------------------
**  ---------------------------------------------------
** 
*Material, name=MATERIAL-1
*Elastic, type=ENGINEERING CONSTANTS
  1.039e+11, 9.62e+09, 9.62e+09,     0.25,     0.25,     0.33, 6.88e+09, 6.88e+09
 4.48e+09,      30.
 1.1039e+12, 9.62e+09, 9.62e+09,     0.25,     0.25,     0.33, 8.88e+09, 8.88e+09
 6.48e+09,      60.
*Expansion, type=ORTHO, zero=20.
 0.00016, 0.00016, 0.00015
** 
** PREDEFINED FIELDS
** 
** Name: Predefined Field-1   Type: Temperature
*Initial Conditions, type=TEMPERATURE
Set-1, 45.

我知道，有必要在 STEP 中定义的重力 inp 文件中添加以下行。这只是例子。

第一部分用于导出全局刚度矩阵。 第二部分用于导出 Global Load Vector。 但是结构分析中的热载荷呢？... 谢谢你的时间。

** Output Global Stiffness Matrix
*Step, name=Global_Stiffness_Matrix
*MATRIX GENERATE, STIFFNESS
*MATRIX OUTPUT, STIFFNESS, FORMAT=COORDINATE
*End Step

*STEP
*MATRIX GENERATE,  STIFFNESS, LOAD
*MATRIX OUTPUT, STIFFNESS, LOAD, FORMAT=MATRIX INPUT
** 
** LOADS
** 
** Name: GRAVITY-1   Type: Gravity
*Dload
, GRAV, 10., 0., -1., 0.
*END STEP

Answer 1

轴向元件的载荷矢量由于弹簧和温度的贡献而以

的形式

将弹簧贡献纳入刚度矩阵后，负载向量中只剩下热机械负载。因此，仅在温度负载的情况下，您的负载向量应包含热负载。