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发表于 2012-4-24 20:57:21
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来自 天津
leonchang 发表于 2012-4-23 20:57
那为什么纵轴写的是sound pressure?
能看看nastran的计算文件里,对输出语句是怎么写的吗? ...
bdf文件:
$ NASTRAN input file created by the Patran 2010 input file translator on
$ April 24, 2012 at 12:41:04.
$ Direct Text Input for Nastran System Cell Section
$ Direct Text Input for File Management Section
$ Direct Text Input for Executive Control
$ Frequency Response Analysis, Direct Formulation, Database
SOL 108
CEND
$ Direct Text Input for Global Case Control Data
$ Elements for group : default_group
SET 1 = 1 THRU 3000,4000 THRU 5398,5399
$ Nodes for group : default_group
SET 2 = 1 THRU 3751,4000 THRU 5400,5401
TITLE = MD Nastran job created on 20-Apr-12 at 00:19:24
ECHO = NONE
LOADSET = 1
SUBCASE 1
TITLE=This is a default subcase.
FREQUENCY = 1
SPC = 2
DLOAD = 2
DISPLACEMENT(SORT1,REAL)=ALL
VELOCITY(SORT1,REAL)=2
SPCFORCES(SORT1,REAL)=ALL
BOUTPUT(SORT1,REAL)=2
$ Direct Text Input for this Subcase
BEGIN BULK
$ Direct Text Input for Bulk Data
PARAM POST 0
PARAM COUPMASS 1
PARAM G .01
PARAM PRTMAXIM YES
FREQ1 1 0. 10. 40
$ Elements and Element Properties for region : plate
PSHELL 1 1 5. 1 1
$ Pset: "plate" will be imported as: "pshell.1"
CQUAD4 4800 1 4560 4571 4880 4549
....
CQUAD4 5099 1 5140 4109 4120 4131
$ Elements and Element Properties for region : air
PSOLID 2 2 0 PFLUID
$ Pset: "air" will be imported as: "psolid.2"
CHEXA 1 2 1 2 13 12 122 123
134 133
...
CHEXA 3000 2 3618 3619 3630 3629 3739 3740
3751 3750
$ Elements and Element Properties for region : plate2
PSHELL 3 3 10. 3 3
$ Pset: "plate2" will be imported as: "pshell.3"
CQUAD4 4000 3 4000 4001 4012 4011
....
CQUAD4 5399 3 5401 4011 4000 4869
$ Referenced Material Records
$ Material Record : mat
$ Description of Material : Date: 20-Apr-12 Time: 00:11:59
MAT1 1 71000. .3 2.77+9 .01
$ Material Record : air
$ Description of Material : Date: 20-Apr-12 Time: 00:11:59
MAT10 2 1.21+6 340000. .01
$ Material Record : matgx
$ Description of Material : Date: 20-Apr-12 Time: 00:11:59
MAT1 3 7.+10 .3 7.85+9 .01
$ Nodes of the Entire Model
GRID 1 1.5 0. 0. -1
...
GRID 5401 1.45 .03 0.
$ Loads for Load Case : fre_1
SPCADD 2 1 3
RLOAD1 4 5 1
LSEQ 1 5 3
DLOAD 2 1. 1. 4
$ Displacement Constraints of Load Set : jianzhi
SPC1 1 123 4010 4021 4032 4043 4054 4065
4076 4087 4098 4109 4120 4131 4142 4153
4164 4175 4186 4197 4208 4219 4230 4241
4252 4263 4274 4285 4296 4307 4318 4329
4340 4351 4362 4373 4384 4395 4406 4417
4428 4439 4450 4461 4472 4483 4494 4505
4516 4527 4538 4549 4560 4571 4582 4593
4604 4615 4626 4637 4648 4659 4670 4681
4692 4703 4714 4725 4736 4747 4758 4769
4780 4791 4802 4813 4824 4835 4846 4857
4868 4879
$ Displacement Constraints of Load Set : guding
SPC1 3 123456 4000 THRU 4009
SPC1 3 123456 4011 4022 4033 4044 4055 4066
4077 4088 4099
SPC1 3 123456 4110 THRU 4119
SPC1 3 123456 4121 4132 4143 4154 4165 4176
4187 4198 4209 4220 4231 4242 4253 4264
4275 4286 4297 4308 4319 4330 4341 4352
4363 4374 4385 4396 4407 4418 4429
SPC1 3 123456 4440 THRU 4449
SPC1 3 123456 4451 4462 4473 4484 4495 4506
4517 4528 4539
SPC1 3 123456 4550 THRU 4559
SPC1 3 123456 4561 4572 4583 4594 4605 4616
4627 4638 4649 4660 4671 4682 4693 4704
4715 4726 4737 4748 4759 4770 4781 4792
4803 4814 4825 4836 4847 4858 4869
$ Nodal Forces of Load Set : force_fre
FORCE 3 4950 0 1. 0. 0. -1.
$ Referenced Dynamic Load Tables
$ Dynamic Load Table : force_fre
TABLED1 1
0. 1. 400. 1. ENDT
$ Referenced Coordinate Frames
$
$
ENDDATA 739324b5
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