hallo leute
ich versuche schon seit langer zeit ein o-ring in adina zu simulieren. meine aufgabe basiert (schaut euch das bild an) auf dem beispiel wie im tutorial (beispiel 22).
in meinem fall zeigt es nach der berechnung ständig fehler an. dabei geht es um die negative jacobi determinante und zerstörte netze. muss wissen wie man es beseitigen kann. ich bräuchte da dringend eure hilfe. kenne mich auch nicht so gut mit adina aus. in meinem fall soll ein o-ring in einer nut simuliert werden. dabei fährt wie aus dem beispiel 22 eine platte auf den o-ring zu und soll die vorpressung darstellen. anschließend soll ein druck angebracht werden, aber so weit bin ich noch nicht.
die fehler sind:
1
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** **
** **
** A FINITE ELEMENT PROGRAM FOR **
** AUTOMATIC DYNAMIC INCREMENTAL NONLINEAR ANALYSIS **
** -- S T R U C T U R E S -- **
** **
** **
** AAAAAAAAAA DDDDDDDDD IIIIIIIIIIII NN NN AAAAAAAAAA **
** AAAAAAAAAAAA DDDDDDDDDD IIIIIIIIIIII NNN NN AAAAAAAAAAAA **
** AA AA DD DD II NNNN NN AA AA **
** AA AA DD DD II NN NN NN AA AA **
** AA AA DD DD II NN NN NN AA AA **
** AAAAAAAAAAAA DD DD II NN NN NN AAAAAAAAAAAA **
** AAAAAAAAAAAA DD DD II NN NN NN AAAAAAAAAAAA **
** AA AA DD DD II NN NN NN AA AA **
** AA AA DD DD II NN NNNN AA AA **
** AA AA DD DD II NN NNN AA AA **
** AA AA DDDDDDDDDD IIIIIIIIIIII NN NN AA AA **
** AA AA DDDDDDDDD IIIIIIIIIIII NN N AA AA **
** **
** **
** VERSION - 8.5.2 (build 06.25.2008) **
** **
** **
** **
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THIS PROGRAM IS IN ITS ENTIRETY PROPRIETARY TO, AND IS SUPPORTED AND MAINTAINED BY
ADINA R&D, Inc.
71 Elton Avenue Tel (617) 926-5199
Watertown, MA 02472, U.S.A. Fax (617) 926-0238
email...: support@adina.com
web site: www.adina.com
USAGE OF THIS PROGRAM AND THE PROGRAM DOCUMENTATION IS
SUBJECT TO THE CONDITIONS IN THE ADINA LICENSE AGREEMENT
COPYRIGHT ADINA R&D,INC., 1987,1990,1992,1994,1999,2000
2001,2002,2003,2004,2005,2006
2007,2008
ADINA IS A REGISTERED TRADEMARK OF K.J. BATHE.
*** ADINA R&D INC. ***
MAKES NO WARRANTY WHATSOEVER, EXPRESSED OR IMPLIED THAT
THE PROGRAM AND ITS DOCUMENTATION ARE FREE FROM ERRORS
AND DEFECTS. IN NO EVENT SHALL ADINA R&D BECOME LIABLE
TO THE USER OR ANY PARTY FOR ANY LOSS, INCLUDING BUT NOT
LIMITED TO, LOSS OF TIME, MONEY OR GOODWILL, WHICH MAY
ARISE FROM THE USE OF THE PROGRAM AND ITS DOCUMENTATION.
COMPUTER VERSION: Windows 64-BIT VERSION
RESTRICTED RIGHTS LEGEND
USE, DUPLICATION, OR DISCLOSURE OF THE ADINA SYSTEM BY THE
U.S. GOVERNMENT IS SUBJECT TO RESTRICTIONS AS SET FORTH IN
SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN TECHNICAL DATA
AND COMPUTER SOFTWARE CLAUSE AT DFARS 252.227-7013.
Initial ADINA memory allocation - 3534.5 mb (or 441.8 mw)
***********************************************************
* *
* THIS IS A NONLINEAR STATIC ANALYSIS *
* *
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1PROGRAM ADINA - VERSION 8.5.2 (build 06.25.2008) ring
S O L U T I O N B Y S P A R S E S O L V E R
TOTAL SYSTEM DATA
TOTAL NUMBER OF EQUATIONS . . . . . . . . . .(NEQ) = 65320
NUMBER OF EQUATIONS EXCLUDING CONTACT . . . (NEQI) = 64767
NUMBER OF CONTACT EQUATIONS . . . . . . . . (NCEQ) = 553
NUMBER OF NON-ZERO MATRIX TERMS. . . . . . . (NZC) = 1063986
MEMORY AVAILABLE FOR STORAGE (in words). .(MSTORE) = 441811500
NUMBER OF PROCESSORS USED. . . . . . . . . (NPROC) = 1
M E M O R Y R E Q U I R E M E N T (in words)
AVAILABLE MEMORY FOR THE ADINA PROGRAM (MSTORE) = 441811500
ESTIMATED MEMORY FOR IN-CORE STORAGE .......(IOPTIM=3)= 5410069
ESTIMATED MEMORY FOR OUT-OF-CORE STORAGE....(IOPTIM=2)= 4673274
NOTE: WHEN SPARSE SOLVER IS USED - ADDITIONAL MEMORY
IS REQUIRED - PLEASE SEE BELOW INFORMATION
RELATED TO SPARSE SOLVERS.
MAXIMUM REQUESTED (TEMPORARY) MEMORY (in words)...... = 5410069
IN-CORE STORAGE FLAG . . . . . . . . . . . (IOPTIM) = 3
*****************************************************************************
Available total memory . . . . . . . . . . . . . 3534.5 mb
Memory used for storage of model data. . . . . . 45.3 mb
*****************************************************************************
*** WARNING NO. A3 ***
Contact group 1 has 551 initially penetrating contactor nodes
Maximum penetration: 0.2838133E-02
NOTE:
Nodes can be initially in contact either by design or due to finite element discretization or due to
a modeling error. Therefore, please check the contact surface definitions (especially in the case of
a gross overlap). Also check the orientation of all contact surfaces (especially the target surfaces).
Contact group 1: Rigid to rigid contact detected and ignored at 1 contactor nodes.
TIMING INFORMATION FOR THE SOLUTION OF EQUATIONS FOR THE FIRST STEP
TIME AT ENTERING THE EQUATION SOLVER . . = 1.58
*****************************************************************************
* *
* <<<<< SPARSE SOLVER INFORMATION >>>>> *
* *
* NUMBER OF NON-ZERO TERMS IN FACTORIZED MATRIX......= 6381792 *
* MEMORY USED BY THE SOLVER (in words)...............= 7756560 *
* TOTAL MEMORY USED BY THE PROGRAM (in words)........= 13419235 *
* << IN-CORE SOLUTION >> *
*****************************************************************************
Memory used by the in-core sparse solver. . : 62.1 mb
Total memory used by the program. . . . . . : 107.4 mb
TIME AT THE END OF SOLUTION OF EQUATIONS = 3.13
STEP NUMBER = 1 ( TIME STEP = 0.10000E+01 SOLUTION TIME = 0.10000E+01 )
DIAG ELEMENT (WITH MAX ABS VALUE) OF THE FACTORIZED MATRIX = 0.12675E+02 NODE = 46729 DOF = Y-TRANSLATION
DIAG ELEMENT (WITH MIN ABS VALUE) OF THE FACTORIZED MATRIX = 0.72035E-03 NODE = 48758 DOF = Z-TRANSLATION
METHOD STEP-NUMBER SUBINCREMENT TIME STEP SOLUTION TIME INITIAL ENERGY
*ATS* 1 1 0.100000E+01 0.100000E+01 0.100000E-04
I N T E R M E D I A T E P R I N T O U T D U R I N G E Q U I L I B R I U M I T E R A T I O N S
OUT-OF- NORM OF CONVERGENCE RATIOS CONVERGENCE RATIOS OUT-OF-BALANCE LOAD
BALANCE OUT-OF-BALANCE NORM OF INCREMENTAL FOR OUT-OF-BALANCE FOR INCREMENTAL VECTOR CALCULATION
ENERGY FORCE MOMENT DISP. ROTN. CFORCE ENERGY FORCE DISP. CFORCE BETA RATIO
NODE-DOF NODE-DOF NODE-DOF NODE-DOF CFNORM MOMENT ROTN. (ITERNS)
MAX VALUE MAX VALUE MAX VALUE MAX VALUE
COMPARE WITH COMPARE WITH
ETOL RTOL DTOL RCTOL
1.00E-03 3.00E-04 (NOT USED) 5.00E-02
ITE= 0 1.00E-05 0.00E+00 0.00E+00 2.36E-01 0.00E+00 4.55E-06 1.00E+00 0.00E+00 0.00E+00 4.55E+04
64793-Z 0 48690-Z 0 0.00E+00 0.00E+00 0.00E+00
0.00E+00 0.00E+00 -3.43E-03 0.00E+00
Element distorted, Jacobian DET= -2.84897747E-01 GROUP= 1 EL= 103
MESH TOO DISTORTED (JACOBIAN DETERMINANT NOT POSITIVE)
Mesh too distorted, Jacobian determinant not positive
Contact group 1: Rigid to rigid contact detected and ignored at 1 contactor nodes.
METHOD STEP-NUMBER SUBINCREMENT TIME STEP SOLUTION TIME INITIAL ENERGY
*ATS* 1 1 0.500000E+00 0.500000E+00 0.100000E-04
I N T E R M E D I A T E P R I N T O U T D U R I N G E Q U I L I B R I U M I T E R A T I O N S
OUT-OF- NORM OF CONVERGENCE RATIOS CONVERGENCE RATIOS OUT-OF-BALANCE LOAD
BALANCE OUT-OF-BALANCE NORM OF INCREMENTAL FOR OUT-OF-BALANCE FOR INCREMENTAL VECTOR CALCULATION
ENERGY FORCE MOMENT DISP. ROTN. CFORCE ENERGY FORCE DISP. CFORCE BETA RATIO
NODE-DOF NODE-DOF NODE-DOF NODE-DOF CFNORM MOMENT ROTN. (ITERNS)
MAX VALUE MAX VALUE MAX VALUE MAX VALUE
COMPARE WITH COMPARE WITH
ETOL RTOL DTOL RCTOL
1.00E-03 3.00E-04 (NOT USED) 5.00E-02
ITE= 0 1.00E-05 0.00E+00 0.00E+00 2.34E-01 0.00E+00 4.67E-06 1.00E+00 0.00E+00 0.00E+00 4.67E+04
64793-Z 0 48690-Z 0 0.00E+00 0.00E+00 0.00E+00
0.00E+00 0.00E+00 -3.33E-03 0.00E+00
Element distorted, Jacobian DET= -4.44223042E-01 GROUP= 1 EL= 103
MESH TOO DISTORTED (JACOBIAN DETERMINANT NOT POSITIVE)
Mesh too distorted, Jacobian determinant not positive
Contact group 1: Rigid to rigid contact detected and ignored at 1 contactor nodes.
METHOD STEP-NUMBER SUBINCREMENT TIME STEP SOLUTION TIME INITIAL ENERGY
*ATS* 1 1 0.250000E+00 0.250000E+00 0.100000E-04
I N T E R M E D I A T E P R I N T O U T D U R I N G E Q U I L I B R I U M I T E R A T I O N S
OUT-OF- NORM OF CONVERGENCE RATIOS CONVERGENCE RATIOS OUT-OF-BALANCE LOAD
BALANCE OUT-OF-BALANCE NORM OF INCREMENTAL FOR OUT-OF-BALANCE FOR INCREMENTAL VECTOR CALCULATION
ENERGY FORCE MOMENT DISP. ROTN. CFORCE ENERGY FORCE DISP. CFORCE BETA RATIO
NODE-DOF NODE-DOF NODE-DOF NODE-DOF CFNORM MOMENT ROTN. (ITERNS)
MAX VALUE MAX VALUE MAX VALUE MAX VALUE
COMPARE WITH COMPARE WITH
ETOL RTOL DTOL RCTOL
1.00E-03 3.00E-04 (NOT USED) 5.00E-02
ITE= 0 1.00E-05 0.00E+00 0.00E+00 2.33E-01 0.00E+00 4.74E-06 1.00E+00 0.00E+00 0.00E+00 4.74E+04
64793-Z 0 48690-Z 0 0.00E+00 0.00E+00 0.00E+00
0.00E+00 0.00E+00 -3.28E-03 0.00E+00
Element distorted, Jacobian DET= -5.27316567E-01 GROUP= 1 EL= 103
MESH TOO DISTORTED (JACOBIAN DETERMINANT NOT POSITIVE)
Mesh too distorted, Jacobian determinant not positive
Contact group 1: Rigid to rigid contact detected and ignored at 1 contactor nodes.
METHOD STEP-NUMBER SUBINCREMENT TIME STEP SOLUTION TIME INITIAL ENERGY
*ATS* 1 1 0.125000E+00 0.125000E+00 0.100000E-04
I N T E R M E D I A T E P R I N T O U T D U R I N G E Q U I L I B R I U M I T E R A T I O N S
OUT-OF- NORM OF CONVERGENCE RATIOS CONVERGENCE RATIOS OUT-OF-BALANCE LOAD
BALANCE OUT-OF-BALANCE NORM OF INCREMENTAL FOR OUT-OF-BALANCE FOR INCREMENTAL VECTOR CALCULATION
ENERGY FORCE MOMENT DISP. ROTN. CFORCE ENERGY FORCE DISP. CFORCE BETA RATIO
NODE-DOF NODE-DOF NODE-DOF NODE-DOF CFNORM MOMENT ROTN. (ITERNS)
MAX VALUE MAX VALUE MAX VALUE MAX VALUE
COMPARE WITH COMPARE WITH
ETOL RTOL DTOL RCTOL
1.00E-03 3.00E-04 (NOT USED) 5.00E-02
ITE= 0 1.00E-05 0.00E+00 0.00E+00 2.32E-01 0.00E+00 4.77E-06 1.00E+00 0.00E+00 0.00E+00 4.77E+04
64793-Z 0 48690-Z 0 0.00E+00 0.00E+00 0.00E+00
0.00E+00 0.00E+00 -3.26E-03 0.00E+00
Element distorted, Jacobian DET= -5.69721042E-01 GROUP= 1 EL= 103
MESH TOO DISTORTED (JACOBIAN DETERMINANT NOT POSITIVE)
Mesh too distorted, Jacobian determinant not positive
Contact group 1: Rigid to rigid contact detected and ignored at 1 contactor nodes.
METHOD STEP-NUMBER SUBINCREMENT TIME STEP SOLUTION TIME INITIAL ENERGY
*ATS* 1 1 0.100000E+00 0.100000E+00 0.100000E-04
I N T E R M E D I A T E P R I N T O U T D U R I N G E Q U I L I B R I U M I T E R A T I O N S
OUT-OF- NORM OF CONVERGENCE RATIOS CONVERGENCE RATIOS OUT-OF-BALANCE LOAD
BALANCE OUT-OF-BALANCE NORM OF INCREMENTAL FOR OUT-OF-BALANCE FOR INCREMENTAL VECTOR CALCULATION
ENERGY FORCE MOMENT DISP. ROTN. CFORCE ENERGY FORCE DISP. CFORCE BETA RATIO
NODE-DOF NODE-DOF NODE-DOF NODE-DOF CFNORM MOMENT ROTN. (ITERNS)
MAX VALUE MAX VALUE MAX VALUE MAX VALUE
COMPARE WITH COMPARE WITH
ETOL RTOL DTOL RCTOL
1.00E-03 3.00E-04 (NOT USED) 5.00E-02
ITE= 0 1.00E-05 0.00E+00 0.00E+00 2.32E-01 0.00E+00 4.78E-06 1.00E+00 0.00E+00 0.00E+00 4.78E+04
64793-Z 0 48690-Z 0 0.00E+00 0.00E+00 0.00E+00
0.00E+00 0.00E+00 -3.25E-03 0.00E+00
Element distorted, Jacobian DET= -5.78270554E-01 GROUP= 1 EL= 103
MESH TOO DISTORTED (JACOBIAN DETERMINANT NOT POSITIVE)
Mesh too distorted, Jacobian determinant not positive
Contact group 1: Rigid to rigid contact detected and ignored at 1 contactor nodes.
METHOD STEP-NUMBER SUBINCREMENT TIME STEP SOLUTION TIME INITIAL ENERGY
*ATS* 1 1 0.100000E+01 0.100000E+01 0.100000E-04
I N T E R M E D I A T E P R I N T O U T D U R I N G E Q U I L I B R I U M I T E R A T I O N S
OUT-OF- NORM OF CONVERGENCE RATIOS CONVERGENCE RATIOS OUT-OF-BALANCE LOAD
BALANCE OUT-OF-BALANCE NORM OF INCREMENTAL FOR OUT-OF-BALANCE FOR INCREMENTAL VECTOR CALCULATION
ENERGY FORCE MOMENT DISP. ROTN. CFORCE ENERGY FORCE DISP. CFORCE BETA RATIO
NODE-DOF NODE-DOF NODE-DOF NODE-DOF CFNORM MOMENT ROTN. (ITERNS)
MAX VALUE MAX VALUE MAX VALUE MAX VALUE
COMPARE WITH COMPARE WITH
ETOL RTOL DTOL RCTOL
1.00E-03 3.00E-04 (NOT USED) 5.00E-02
ITE= 0 1.00E-05 0.00E+00 0.00E+00 2.36E-01 0.00E+00 4.55E-06 1.00E+00 0.00E+00 0.00E+00 4.55E+04
64793-Z 0 48690-Z 0 0.00E+00 0.00E+00 0.00E+00
0.00E+00 0.00E+00 -3.43E-03 0.00E+00
Element distorted, Jacobian DET= -2.84897747E-01 GROUP= 1 EL= 103
MESH TOO DISTORTED (JACOBIAN DETERMINANT NOT POSITIVE)
Mesh too distorted, Jacobian determinant not positive
**** SOLUTION FAILED TO CONVERGE ****
SOLUTION TIME STEP NUMBER = 1
TIME STEP SUBINCREMENT NUMBER = 1
NUMBER OF ATTEMPTS MADE= 4
LAST SOLUTION TIME STEP SUBINCREMENT = 0.100000E+00
LAST CONVERGED SOLUTION T I M E = 0.000000E+00
6 EQUILIBRIUM ITERATIONS PERFORMED IN THIS TIME STEP TO REESTABLISH EQUILIBRIUM
STIFFNESS REFORMED FOR EVERY ITERATION OF THIS STEP
NUMBER OF SUBINCREMENTS IN THIS TIME STEP = 6
S T R E S S C A L C U L A T I O N S
NO NONZERO REACTIONS PRESENT
1PROGRAM ADINA - VERSION 8.5.2 (build 06.25.2008) ring
R E S T A R T D A T A S A V I N G I N F O R M A T I O N
RESTART DATA IS SAVED FOR STEP 1 AT TIME EQUALS 0.000000000000E+00
1PROGRAM ADINA - VERSION 8.5.2 (build 06.25.2008) ring
S O L U T I O N T I M E L O G (IN SEC)
FOR PROBLEM
ring
INPUT PHASE . . . . . . . . . . . . . . . . . . 0.48
SUBSTRUCTURES INPUT PHASE. . . . . . . . . . . . 0.00
INITIALIZATIONS. . . . . . . . . . . . . . . . . 0.00
ASSEMBLAGE OF LINEAR STIFFNESS,EFFECTIVE STIFF-
NESS,MASS MATRICES AND LOAD VECTORS . . . . . . 0.10
FREQUENCY (OR BUCKLING) ANALYSIS . . . . . . . . 0.00
INITIAL CALCULATIONS FOR MODE SUPERPOSITION
ANALYSIS . . . . . . . . . 0.00
TRIANGULARIZATION OF LINEAR (EFFECTIVE)
STIFFNESS MATRIX . . . . . 0.00
STEP-BY-STEP SOLUTION ( 1 TIME STEPS)
CALCULATION OF EFFECTIVE LOAD VECTORS . . . 0.01
UPDATING EFFECTIVE STIFFNESS MATRICES
AND RHS VECTOR FOR NONLINEARITIES . . . . . 1.62
UPDATING EFFECTIVE STIFFNESS MATRIX FOR
CENTRIFUGAL DEFORMATION DEPENDENT LOADING. . 0.00
MODE SUPERPOSITION . . . . . . . . . . . . . 0.00
SOLUTION OF EQUATIONS . . . . . . . . . . . 7.57
EQUILIBRIUM ITERATIONS (TOTAL) . . . . . . . 9.32
CALCULATION AND PRINTING OF DISPLACE-
MENTS, VELOCITIES, AND ACCELERATIONS . . . . 46696.29
CALCULATION AND PRINTING OF STRESSES . . . . 1.18
FRACTURE MECHANICS . . . . . . . . . . . . . 0.00
STEP-BY-STEP TOTAL. . . 10.54
CALCULATION AND PRINTING OF SUBSTRUCTURE
INTERNAL RESPONSES . . . . . . . . . 0.00
T O T A L S O L U T I O N T I M E (SEC) . . . . . 11.14
MEMORY USED BY THE SPARSE SOLVER= 0.0mw ( 0.0mb)
TOTAL MEMORY USED BY THE PROGRAM= 5.7mw ( 45.3mb)
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