Jogibaer
Aerospace
- May 24, 2017
- 1
Hello guys,
I'm trying to simulate a SAW sensor in ANSYS, but I can't get it done and experience some solving problems. I hope you can help me.
I would like to get the frequency response, admittance, deformation etc. but I even fail to simulate the frequency response respectively run the example file successfully.
Here is the PDF which explains a bit what I want to do, see page 14:
This is how it looks like:
![URL]](https://res.cloudinary.com/engtips/image/fetch/w_800,c_lfill,q_auto,f_auto,g_faces:center/[URL unfurl="true"]http://www.jogibaerspace.de/01_ansys_small.jpg[/URL])
Big:
So in my opinion the best idea is to use the rebuilt example file (2nd link) for analysis, because the other one produces more errors, also concerning units that I decided to build it again before waisting more time.
ANSYS 17.2
Original example file by ANSYS: Rebuild example file:
My rebuilt ends up with this error message:
An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes.
Here is the solver output:
I'm trying to simulate a SAW sensor in ANSYS, but I can't get it done and experience some solving problems. I hope you can help me.
I would like to get the frequency response, admittance, deformation etc. but I even fail to simulate the frequency response respectively run the example file successfully.
Here is the PDF which explains a bit what I want to do, see page 14:
This is how it looks like:
Big:
So in my opinion the best idea is to use the rebuilt example file (2nd link) for analysis, because the other one produces more errors, also concerning units that I decided to build it again before waisting more time.
ANSYS 17.2
Original example file by ANSYS: Rebuild example file:
My rebuilt ends up with this error message:
An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes.
Here is the solver output:
Code:
Solver Output
ANSYS Multiphysics
***** ANSYS COMMAND LINE ARGUMENTS *****
BATCH MODE REQUESTED (-b) = NOLIST
INPUT FILE COPY MODE (-c) = COPY
DISTRIBUTED MEMORY PARALLEL REQUESTED
2 PARALLEL PROCESSES REQUESTED WITH SINGLE THREAD PER PROCESS
TOTAL OF 2 CORES REQUESTED
MPI OPTION = INTELMPI
INPUT FILE NAME = C:\Pfad\ANSYS\_ProjectScratch\Scr6481\dummy.dat
OUTPUT FILE NAME = C:\Pfad\ANSYS\_ProjectScratch\Scr6481\solve.out
START-UP FILE MODE = NOREAD
STOP FILE MODE = NOREAD
RELEASE= Release 17.2 BUILD= 17.2 UP20160718 VERSION=WINDOWS x64
CURRENT JOBNAME=file0 16:43:35 MAY 24, 2017 CP= 0.625
PARAMETER _DS_PROGRESS = 999.0000000
/INPUT FILE= ds.dat LINE= 0
*** NOTE *** CP = 0.719 TIME= 16:43:35
The /CONFIG,NOELDB command is not valid in a Distributed ANSYS
solution. Command is ignored.
*GET _WALLSTRT FROM ACTI ITEM=TIME WALL VALUE= 16.7263889
TITLE=
SAW--Harmonic Response (B5)
ACT Extensions:
Acoustics, 172.7
133706f2-c6fb-43e5-925f-c762e75c8c93, wbex
/COM, PiezoAndMEMS, 172.1
0cd64874-101b-4182-aef8-530cf9982bb6, wbex
SET PARAMETER DIMENSIONS ON _WB_PROJECTSCRATCH_DIR
TYPE=STRI DIMENSIONS= 248 1 1
PARAMETER _WB_PROJECTSCRATCH_DIR(1) = C:\Pfad\ANSYS\_ProjectScratch\Scr6481
SET PARAMETER DIMENSIONS ON _WB_SOLVERFILES_DIR
TYPE=STRI DIMENSIONS= 248 1 1
PARAMETER _WB_SOLVERFILES_DIR(1) = C:\Pfad\ANSYS\SAW_files\dp0\SYS\MECH
SET PARAMETER DIMENSIONS ON _WB_USERFILES_DIR
TYPE=STRI DIMENSIONS= 248 1 1
PARAMETER _WB_USERFILES_DIR(1) = C:\Pfad\ANSYS\SAW_files\user_files --- Data in consistent MKS units. See Solving Units in the help system for more
MKS UNITS SPECIFIED FOR INTERNAL
LENGTH (l) = METER (M)
MASS (M) = KILOGRAM (KG)
TIME (t) = SECOND (SEC)
TEMPERATURE (T) = CELSIUS (C)
TOFFSET = 273.0
CHARGE (Q) = COULOMB
FORCE (f) = NEWTON (N) (KG-M/SEC2)
HEAT = JOULE (N-M)
PRESSURE = PASCAL (NEWTON/M**2)
ENERGY (W) = JOULE (N-M)
POWER (P) = WATT (N-M/SEC)
CURRENT (i) = AMPERE (COULOMBS/SEC)
CAPACITANCE (C) = FARAD
INDUCTANCE (L) = HENRY
MAGNETIC FLUX = WEBER
RESISTANCE (R) = OHM
ELECTRIC POTENTIAL = VOLT
INPUT UNITS ARE ALSO SET TO MKS
*** ANSYS - ENGINEERING ANALYSIS SYSTEM RELEASE Release 17.2 17.2 ***
DISTRIBUTED ANSYS Multiphysics
00000000 VERSION=WINDOWS x64 16:43:35 MAY 24, 2017 CP= 0.719
SAW--Harmonic Response (B5)
***** ANSYS ANALYSIS DEFINITION (PREP7) *****
*********** Nodes for the whole assembly ***********
*********** Elements for Body 1 "End_Tx" ***********
*********** Elements for Body 2 "End_Tx_subs" ***********
*********** Elements for Body 3 "Solid" ***********
*********** Elements for Body 4 "Solid" ***********
*********** Elements for Body 5 "Solid" ***********
*********** Elements for Body 6 "Solid" ***********
*********** Elements for Body 7 "Solid" ***********
*********** Elements for Body 8 "Solid" ***********
*********** Elements for Body 9 "Solid" ***********
*********** Elements for Body 10 "Solid" ***********
*********** Elements for Body 11 "Solid" ***********
*********** Elements for Body 12 "Solid" ***********
*********** Elements for Body 13 "Solid" ***********
*********** Elements for Body 14 "Solid" ***********
*********** Elements for Body 15 "Solid" ***********
*********** Elements for Body 16 "Solid" ***********
*********** Elements for Body 17 "Solid" ***********
*********** Elements for Body 18 "Solid" ***********
*********** Elements for Body 19 "Solid" ***********
*********** Elements for Body 20 "Solid" ***********
*********** Elements for Body 21 "Solid" ***********
*********** Elements for Body 22 "Solid" ***********
*********** Elements for Body 23 "Tx_Si" ***********
*********** Elements for Body 24 "Tx_subs" ***********
*********** Elements for Body 25 "End_Rx_Si" ***********
*********** Elements for Body 26 "End_Rx_subs" ***********
*********** Elements for Body 27 "Solid" ***********
*********** Elements for Body 28 "Solid" ***********
*********** Elements for Body 29 "Solid" ***********
*********** Elements for Body 30 "Solid" ***********
*********** Elements for Body 31 "Solid" ***********
*********** Elements for Body 32 "Solid" ***********
*********** Elements for Body 33 "Solid" ***********
*********** Elements for Body 34 "Solid" ***********
*********** Elements for Body 35 "Solid" ***********
*********** Elements for Body 36 "Solid" ***********
*********** Elements for Body 37 "Solid" ***********
*********** Elements for Body 38 "Solid" ***********
*********** Elements for Body 39 "Solid" ***********
*********** Elements for Body 40 "Solid" ***********
*********** Elements for Body 41 "Solid" ***********
*********** Elements for Body 42 "Solid" ***********
*********** Elements for Body 43 "Solid" ***********
*********** Elements for Body 44 "Solid" ***********
*********** Elements for Body 45 "Solid" ***********
*********** Elements for Body 46 "Solid" ***********
*********** Elements for Body 47 "Rx_Si" ***********
*********** Elements for Body 48 "Rx_subs" ***********
*********** Send User Defined Coordinate System(s) ***********
*********** Set Reference Temperature ***********
*********** Send Materials ***********
*********** Create Contact "Contact Region" ***********
Real Constant Set For Above Contact Is 50 & 49
*********** Create Contact "Contact Region 2" ***********
Real Constant Set For Above Contact Is 52 & 51
*********** Create Contact "Contact Region 3" ***********
Real Constant Set For Above Contact Is 54 & 53
*********** Create Contact "Contact Region 4" ***********
Real Constant Set For Above Contact Is 56 & 55
*********** Create Contact "Contact Region 5" ***********
Real Constant Set For Above Contact Is 58 & 57
*********** Create Contact "Contact Region 6" ***********
Real Constant Set For Above Contact Is 60 & 59
*********** Create Contact "Contact Region 7" ***********
Real Constant Set For Above Contact Is 62 & 61
*********** Create Contact "Contact Region 8" ***********
Real Constant Set For Above Contact Is 64 & 63
*********** Create Contact "Contact Region 9" ***********
Real Constant Set For Above Contact Is 66 & 65
*********** Create Contact "Contact Region 10" ***********
Real Constant Set For Above Contact Is 68 & 67
*********** Create Contact "Contact Region 11" ***********
Real Constant Set For Above Contact Is 70 & 69
*********** Create Contact "Contact Region 12" ***********
Real Constant Set For Above Contact Is 72 & 71
*********** Create Contact "Contact Region 13" ***********
Real Constant Set For Above Contact Is 74 & 73
*********** Create Contact "Contact Region 14" ***********
Real Constant Set For Above Contact Is 76 & 75
*********** Create Contact "Contact Region 15" ***********
Real Constant Set For Above Contact Is 78 & 77
*********** Create Contact "Contact Region 16" ***********
Real Constant Set For Above Contact Is 80 & 79
*********** Create Contact "Contact Region 17" ***********
Real Constant Set For Above Contact Is 82 & 81
*********** Create Contact "Contact Region 18" ***********
Real Constant Set For Above Contact Is 84 & 83
*********** Create Contact "Contact Region 19" ***********
Real Constant Set For Above Contact Is 86 & 85
*********** Create Contact "Contact Region 20" ***********
Real Constant Set For Above Contact Is 88 & 87
*********** Create Contact "Contact Region 21" ***********
Real Constant Set For Above Contact Is 90 & 89
*********** Create Contact "Contact Region 22" ***********
Real Constant Set For Above Contact Is 92 & 91
*********** Create Contact "Contact Region 23" ***********
Real Constant Set For Above Contact Is 94 & 93
*********** Create Contact "Contact Region 24" ***********
Real Constant Set For Above Contact Is 96 & 95
*********** Create Contact "Contact Region 25" ***********
Real Constant Set For Above Contact Is 98 & 97
*********** Create Contact "Contact Region 26" ***********
Real Constant Set For Above Contact Is 100 & 99
*********** Create Contact "Contact Region 27" ***********
Real Constant Set For Above Contact Is 102 & 101
*********** Create Contact "Contact Region 28" ***********
Real Constant Set For Above Contact Is 104 & 103
*********** Create Contact "Contact Region 29" ***********
Real Constant Set For Above Contact Is 106 & 105
*********** Create Contact "Contact Region 30" ***********
Real Constant Set For Above Contact Is 108 & 107
*********** Create Contact "Contact Region 31" ***********
Real Constant Set For Above Contact Is 110 & 109
*********** Create Contact "Contact Region 32" ***********
Real Constant Set For Above Contact Is 112 & 111
*********** Create Contact "Contact Region 33" ***********
Real Constant Set For Above Contact Is 114 & 113
*********** Create Contact "Contact Region 34" ***********
Real Constant Set For Above Contact Is 116 & 115
*********** Create Contact "Contact Region 35" ***********
Real Constant Set For Above Contact Is 118 & 117
*********** Create Contact "Contact Region 36" ***********
Real Constant Set For Above Contact Is 120 & 119
*********** Create Contact "Contact Region 37" ***********
Real Constant Set For Above Contact Is 122 & 121
*********** Create Contact "Contact Region 38" ***********
Real Constant Set For Above Contact Is 124 & 123
*********** Create Contact "Contact Region 39" ***********
Real Constant Set For Above Contact Is 126 & 125
*********** Create Contact "Contact Region 40" ***********
Real Constant Set For Above Contact Is 128 & 127
*********** Create Contact "Contact Region 41" ***********
Real Constant Set For Above Contact Is 130 & 129
*********** Create Contact "Contact Region 42" ***********
Real Constant Set For Above Contact Is 132 & 131
*********** Create Contact "Contact Region 43" ***********
Real Constant Set For Above Contact Is 134 & 133
*********** Create Contact "Contact Region 44" ***********
Real Constant Set For Above Contact Is 136 & 135
*********** Create Contact "Contact Region 45" ***********
Real Constant Set For Above Contact Is 138 & 137
*********** Create Contact "Contact Region 46" ***********
Real Constant Set For Above Contact Is 140 & 139
*********** Create Contact "Contact Region 47" ***********
Real Constant Set For Above Contact Is 142 & 141
*********** Create Contact "Contact Region 48" ***********
Real Constant Set For Above Contact Is 144 & 143
*********** Create Contact "Contact Region 49" ***********
Real Constant Set For Above Contact Is 146 & 145
*********** Create Contact "Contact Region 50" ***********
Real Constant Set For Above Contact Is 148 & 147
*********** Send Named Selection as Element Component ***********
*********** Send Named Selection as Element Component ***********
*********** Send Named Selection as Element Component ***********
*********** Send Named Selection as Element Component ***********
*********** Send Named Selection as Node Component ***********
*********** Send Named Selection as Node Component ***********
*********** Fixed Supports ***********
********* Frictionless Supports X *********
***** ROUTINE COMPLETED ***** CP = 2.297
--- Number of total nodes = 249363
--- Number of contact elements = 35164
--- Number of spring elements = 0
--- Number of bearing elements = 0
--- Number of solid elements = 48822
--- Number of total elements = 83986
*GET _WALLBSOL FROM ACTI ITEM=TIME WALL VALUE= 16.7266667
***** ANSYS SOLUTION ROUTINE *****
PERFORM A HARMONIC ANALYSIS
THIS WILL BE A NEW ANALYSIS
HARMONIC FREQUENCY RANGE - END= 0.10000E+09 BEGIN= 0.50000E+08
PERFORM A FULL HARMONIC RESPONSE ANALYSIS
THERMAL STRAINS ARE NOT INCLUDED IN THE LOAD VECTOR.
STEP BOUNDARY CONDITION KEY= 1
USE 10 SUBSTEP(S) THIS LOAD STEP FOR ALL DEGREES OF FREEDOM
DAMPING RATIO = 0.0100
ERASE THE CURRENT DATABASE OUTPUT CONTROL TABLE.
WRITE ALL ITEMS TO THE DATABASE WITH A FREQUENCY OF NONE
FOR ALL APPLICABLE ENTITIES
WRITE NSOL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL
FOR ALL APPLICABLE ENTITIES
WRITE STRS ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL
FOR ALL APPLICABLE ENTITIES
WRITE EPEL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL
FOR ALL APPLICABLE ENTITIES
WRITE RSOL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL
FOR ALL APPLICABLE ENTITIES
*********** Piezoelectric Body1 ***********
CMBLOCK read of NODE component PIEZOELECTRICBODY1 completed
FINISH SOLUTION PROCESSING
***** ROUTINE COMPLETED ***** CP = 2.359
*** ANSYS - ENGINEERING ANALYSIS SYSTEM RELEASE Release 17.2 17.2 ***
DISTRIBUTED ANSYS Multiphysics
00000000 VERSION=WINDOWS x64 16:43:36 MAY 24, 2017 CP= 2.359
SAW--Harmonic Response (B5)
***** ANSYS ANALYSIS DEFINITION (PREP7) *****
SELECT COMPONENT PIEZOELECTRICBODY1
SELECT ONLY ELEMENTS COMPLETELY CONTAINED WITHIN NODE SET.
77000 ELEMENTS (OF 83986 DEFINED) SELECTED FROM
222662 SELECTED NODES BY ESLN COMMAND.
RESELECT FOR ITEM=ENAM COMPONENT=
IN RANGE 185 TO 185 STEP 1
0 ELEMENTS (OF 83986 DEFINED) SELECTED BY ESEL COMMAND.
*GET INUM185 FROM ELEM ITEM=COUN VALUE= 0.00000000
*IF iNum185 ( = 0.00000 ) GT
0 ( = 0.00000 ) THEN
***** ROUTINE COMPLETED ***** CP = 2.422
EXIT ANSYS WITHOUT SAVING DATABASE
NUMBER OF WARNING MESSAGES ENCOUNTERED= 0
NUMBER OF ERROR MESSAGES ENCOUNTERED= 0
+--------- D I S T R I B U T E D A N S Y S S T A T I S T I C S ------------+
Release: Release 17.2 Build: 17.2 Update: UP20160718 Platform: WINDOWS x64
Date Run: 05/24/2017 Time: 16:43
Operating System: Windows 10 (Build: 15063)
Windows Process ID: 3504
Processor Model: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz
Compiler: Intel(R) FORTRAN Compiler Version 15.0.2 (Build: 20150121)
Intel(R) C/C++ Compiler Version 15.0.2 (Build: 20150121)
Intel(R) Math Kernel Library Version 11.2.3 Product Build 20150413
Number of machines requested : 1
Total number of cores available : 8
Number of physical cores available : 4
Number of processes requested : 2
Number of threads per process requested : 1
Total number of cores requested : 2 (Distributed Memory Parallel)
MPI Type: INTELMPI
MPI Version: Intel(R) MPI Library 5.0 Update 3 for Windows* OS
GPU Acceleration: Not Requested
Job Name: file0
Input File: dummy.dat
Core Machine Name Working Directory
----------------------------------------------------
0 electric_ocean C:\Pfad\ANSYS\_ProjectScratch\Scr6481
1 electric_ocean C:\Pfad\ANSYS\_ProjectScratch\Scr6481
Latency time from master to core 1 = 0.556 microseconds
Communication speed from master to core 1 = 6075.34 MB/sec
Total CPU time for main thread : 1.8 seconds
Total CPU time summed for all threads : 2.8 seconds
Elapsed time spent pre-processing model (/PREP7) : 1.0 seconds
Elapsed time spent solution - preprocessing : 0.0 seconds
Elapsed time spent computing solution : 0.0 seconds
Elapsed time spent solution - postprocessing : 0.0 seconds
Elapsed time spent post-processing model (/POST1) : 0.0 seconds
Maximum total memory used : 149.0 MB
Maximum total memory allocated : 3136.0 MB
Maximum total memory available : 8 GB
+------ E N D D I S T R I B U T E D A N S Y S S T A T I S T I C S -------+
*---------------------------------------------------------------------------*
| |
| DISTRIBUTED ANSYS RUN COMPLETED |
| |
|---------------------------------------------------------------------------|
| |
| Ansys Release 17.2 Build 17.2 UP20160718 WINDOWS x64 |
| |
|---------------------------------------------------------------------------|
| |
| Database Requested(-db) 1024 MB Scratch Memory Requested 1024 MB |
| Maximum Database Used 112 MB Maximum Scratch Memory Used 32 MB |
| |
|---------------------------------------------------------------------------|
| |
| CP Time (sec) = 2.766 Time = 16:43:37 |
| Elapsed Time (sec) = 4.000 Date = 05/24/2017 |
| |
*---------------------------------------------------------------------------*