急急急~~~晚辈新手一枚，刚用vitual lab 12做结构振动声辐射计算，碰到如下问题，请各位大神~~前辈指教！！！！！在线等~~~
进入声学有限元模块模拟一块加筋板的振动声辐射计算，采用直接声振耦合计算。结构是一块加筋板，在ansys11中划分网格时板用的是shell63单元、筋（就是一些纵横交错的T型材）用的是beam188 单元。结构和流域的网格模型是导入的ansys11中的.cdb文件，因为.cdb格式的流域壳子在VL中填充不了，所以我将导入VL12的两个cdb文又输出为.bdf格式，然后再导入这两个.bdf格式，此时流域壳子可以填充了。
问题来了~~~~~：在VL12中进行Direct Vibro—Acoustic Response Case (直接声振耦合计算)时，计算机报错，无法计算，显示错误为：“job execution failed .please check job parameters and check that service manager is running on server.”。
详细信息显示为：
XPR VERSION 12
Requested task is SYSNOISE sequential computation.
Working directory on server is C:\Users\ADMINI~1\AppData\Local\Temp
Checking that the SYSNOISE launch script (D:\Program Files\LMS\LMS Virtual.Lab 12\VirtualLab\Sysnoise\5.6\bin\sysnoise_nogui.bat) exists on server...
OK
SYSNOISE log file on server is C:\Users\ADMINI~1\AppData\Local\Temp\Administrator-12381-sysnoise.log.
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxx JOB EXECUTION START
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
System for Computational Vibro-Acoustics
------------------------------------------------------------------------
SYSNOISE Rev 5.6 Windows_x86_64 MAR2003 DATE: 28-OCT-2017 15:15:13
PATCH LEVEL P (Build Date: 03-JUN-2013)
READING THE SET-UP FILE: D:\Program Files\LMS\LMS Virtual.Lab 12\VirtualLab\Sysnoise\5.6\bin\\..\res\SYSNOISE.STP
THE SYSNOISE PROFILE FILE NAME HAS NOT BEEN DEFINED.
STANDARD GRAPHIC DEVICE SET TO DEFAULT
PLOTTING GRAPHIC DEVICE SET TO SCREENDUMP
MEMORY IN USE = 800000
AVAILABLE MEMORY= 1008000000
FREE MEMORY = 1007200000
CREATING DEFAULT SYSNOISE MODEL FILE default.sdb
SYSNOISE ANALYSIS OPTION :
BEM INDIRECT VARIATIONAL UNBAFFLED FREQUENCY FLUID
SYSNOISE> SCL> ENVIRONMENT SECTION SETUP USRDIR 'C:\Users\ADMINI~1\AppData\Local\Temp\' RETURN
SYSNOISE> SCL> ENVIRONMENT SECTION SETUP TMPDIR 'C:\Users\ADMINI~1\AppData\Local\Temp\' RETURN
SYSNOISE> SCL> Open Model 1 File Administrator-12381-Structure.sdb Original Return
OPENING SYSNOISE MODEL FILE Administrator-12381-Structure.sdb
LOADING MODEL Exported VLModel
SYSNOISE> SCL> Open Model 2 File Administrator-12381-Acoustic.sdb Original Return
OPENING SYSNOISE MODEL FILE Administrator-12381-Acoustic.sdb
LOADING MODEL Exported VLModel
SYSNOISE> SCL> Extract Summary Return
SYSNOISE ANALYSIS OPTION :
FEM VARIATIONAL FREQUENCY FLUID
SYSNOISE SUMMARY INFORMATION
------------------------------------------------------------------------
Title...Exported VLModel
Date....28-OCT-2017 15:15:13
Number of dimensions...................... 3
Number of nodes........................... 1104
Number of elements........................ 4309
Number of AML faces....................... 1030
Number of AML Kirchhoff faces............. 1030
Number of material characteristics........ 1
Number of load cases...................... 1
Number of nodes with pressure B.C.'s...... 122
------------------------------------------------------------------------
SYSNOISE> SCL> Environment Section SETUP GEO_TOLERANCE '1E-006' Return
SYSNOISE> SCL> Environment Section SETUP BELL 'on' Return
SYSNOISE> SCL> Environment Section SETUP STABLEFEM TRUE Return
SYSNOISE> SCL> ENVIRONMENT SECTION AML LAYERNUM 5 Return
SYSNOISE> SCL> ENVIRONMENT SECTION AML WAVELENGTH_RATIO 0.160000 Return
SYSNOISE> SCL> Parameter Model 2
PARAMETER> SCL> Physical
PARAMETER> SCL> Save Potentials Step 1
PARAMETER> SCL> Save Results none
PARAMETER> SCL> Store Results none
STORE RESULTS> SCL> Return
PARAMETER> SCL> NoFlow
PARAMETER> SCL> Return
Updating Model Parameters
SYSNOISE> SCL> Activate Model 2 return
SYSNOISE> SCL> Solve
SOLVE> SCL> Frequency 10 To 100 LinStep 10
SOLVE> SCL> Return
========================================================================
FREQUENCY RESPONSE MODULE
------------------------------------------------------------------------
FOR 10 FREQUENCIES FROM 10.000 TO 100.000 HZ
ANALYSIS # 1 FREQUENCY = 10.000 HZ TYPE = NORMAL
ANALYSIS # 2 FREQUENCY = 20.000 HZ TYPE = NORMAL
ANALYSIS # 3 FREQUENCY = 30.000 HZ TYPE = NORMAL
ANALYSIS # 4 FREQUENCY = 40.000 HZ TYPE = NORMAL
ANALYSIS # 5 FREQUENCY = 50.000 HZ TYPE = NORMAL
ANALYSIS # 6 FREQUENCY = 60.000 HZ TYPE = NORMAL
ANALYSIS # 7 FREQUENCY = 70.000 HZ TYPE = NORMAL
ANALYSIS # 8 FREQUENCY = 80.000 HZ TYPE = NORMAL
ANALYSIS # 9 FREQUENCY = 90.000 HZ TYPE = NORMAL
ANALYSIS # 10 FREQUENCY = 100.000 HZ TYPE = NORMAL
------------------------------------------------------------------------
SOLVE PARAMETERS
MODEL: 1 - Exported VLModel
------------------------------------------------------------------------
PHYSICAL Coordinates
Saving DISPLACEMENTS every 1 steps
Energy Calculation Enabled
Surface post-processing on positive side
------------------------------------------------------------------------
SOLVE PARAMETERS
MODEL: 2 - Exported VLModel
------------------------------------------------------------------------
PHYSICAL Coordinates
Saving POTENTIALS every 1 steps
No saving of RESULTS
Energy Calculation Enabled
Surface post-processing on positive side
------------------------------------------------------------------------
LAUNCHING COUPLED FEM-FEM (Physical Coords - Freq) ANALYSIS
Number of coupled load cases = 1
NO SUPERIMPOSED NODES WITH TOLERANCE= 5.00000E-06
NO ISOLATED NODES
CHECKING ELEMENT TOPOLOGY AND DISTORTION
NO SUPERIMPOSED ELEMENTS WITH TOLERANCE= 5.00000E-06
Checking MESH Connectivity...
1 Part(s) and 1 Sub-Domain(s) found
1426 ENVELOPE FACE(S) REMAINING FOR PART 1
Occupied space: 4 Mb ( 0.10 %)
COMPUTING PART INFORMATION:
Part 1 Volume: 6.76411E+00
THIS MODEL SEEMS SUITABLE FOR A FEM FLUID APPROACH
CPU Stats --- Delta: 0:00:01 ( 1.21) Total: 0:00:01 ( 1.21)
Building FLUID / STRUCTURE interface
Using Model 1 as STRUCTURAL Model
Using Model 2 as FLUID Model
There are 45 interface node(s) on the FEM FLUID side
There are 45 interface node(s) on the FEM STRUCTURE side
Generating INTERFACE mesh
Structural INTERFACE MESH contains 32 elements
Fluid INTERFACE MESH contains 64 elements
Computing FLUID Element System Matrices
Computing MASS and STIFFNESS elements matrices
using HIGH PRECISION STABILIZED scheme for linear elements
CPU Stats --- Delta: 0:00:00 ( 0.02) Total: 0:00:01 ( 1.23)
Computing VELOCITY matrices on elements faces
CPU Stats --- Delta: 0:00:00 ( 0.00) Total: 0:00:01 ( 1.23)
CPU Stats --- Delta: 0:00:00 ( 0.00) Total: 0:00:01 ( 1.23)
CPU Stats --- Delta: 0:00:00 ( 0.00) Total: 0:00:01 ( 1.23)
Running Bacon and Dynam ...
CPU Stats --- Delta: 0:00:01 ( 0.96) Total: 0:00:02 ( 2.19)
ERROR *** END OF FILE: ONLY 33 OVER 53 ELEMENTS ARE READ FROM u60 FILE
**** ERROR has occurred during computation ****
You may try to compute the solution in manual mode and try to attach the results afterwards.
Aborting Coupled Direct Response procedure due to error...
>> ERROR : Aborting Coupled Direct Response procedure due to error...
**** ERROR has occurred during computation ****
You may try to compute the solution in manual mode and try to attach the results afterwards.
A FATAL ERROR OCCURRED. PROGRAM STOPPED
**** ERROR has occurred during computation ****
You may try to compute the solution in manual mode and try to attach the results afterwards.
前辈，请问：VL中支持ansys中的哪些beam单元类型？？？因为在anays中我结构的梁单元用的是beam188，我在VL12中没有找到帮助文件，所以也查看不了VL中到底支不支持beam188，又支持哪些类型的beam单元？？？ 此外，我还将beam188换成里beam4也试了下，还是报同样的错误：
ERROR *** END OF FILE: ONLY 33 OVER 53 ELEMENTS ARE READ FROM u60 FILE
**** ERROR has occurred during computation ****
You may try to compute the solution in manual mode and try to attach the results afterwards.
Aborting Coupled Direct Response procedure due to error...
>> ERROR : Aborting Coupled Direct Response procedure due to error...
**** ERROR has occurred during computation ****
You may try to compute the solution in manual mode and try to attach the results afterwards.
A FATAL ERROR OCCURRED. PROGRAM STOPPED
**** ERROR has occurred during computation ****
You may try to compute the solution in manual mode and try to attach the results afterwards.
主任~按照你的提示，我在ansys里仔细检查结构的材料、和结构单元属性，同时也进行了计算，当然ANSYS里结构模态能计算出来。在ANSYS里我给结构定义成beam188单元，还给beam188定义了截面形状是T型，T形截面的方向是通过定位点来确定的。然后在ANSYS里输出.cdb,再导入到VL中，再在VL中将cdb导出成bdf格式，此时，VL弹出提示：orientation of beam element with tag 97 and ID 1072 not accessible(这句话意思大概就是说我在ANSYS里定义T截面方向的定位点无法访问，于是我猜想可能在VL中将cdb导出成bdf时，VL漏掉了原网格模型中定位点的信息！)，但我依旧忽略过去，继续导出成bdf，然后导入bdf到VL进行计算，最后在VL中利用Vibro-Acoustic Forced Response计算时依旧报错~在job details 里最后还是提示：“ERROR *** END OF FILE: ONLY 33 OVER 53 ELEMENTS ARE READ FROM u60 FILE（摘取一部分信息）”请问主任：这个的意思就是说VL只能读出来的53个单元数目，此处的u60文件指的是什么文件？？？报错的原因是因为能读取的单元数目少于我的模型单元数目（我模型单元数目肯定大于53个）吗？？？这与前面出现的不能访问定位点之间有联系么？？我已经翻来覆去检查了好多次，实在是不知道哪里出了问题啊，还请主任给指教下~~~谢谢~~
发表于 2017-10-28 17:12
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