background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
1/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
Organization (S):
EDF-R & D/AMA













Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
Document: U4.84.05



Operator
POST_USURE



1 Goal
To calculate volume and depth of wear according to the power of wear.
The power of wear is given or calculated by the operator
DYNA_TRAN_MODAL
[U4.53.21]. It is necessary
to provide a law of wear, a geometry of contact and a list of moments.
The figure of play can be cut out to calculate the sizes related to wear by sectors. In it
case, the table created can be used by the operator
MODI_OBSTACLE
[U4.44.22] to calculate
evolution of the figures of plays due to wear.
Product a structure of data of the type
tabl_post_usur
.
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
2/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
2 Syntax

tresu [tabl_post_usur] = POST_USURE
(
resu= tresu,
# definition of the Node of impact or a power of wear
/
RESU_GENE
= tg,
[tran_gene]
NODE
=
noeu,
[node]
INST_INIT
=/0.,
[DEFECT]
/t0,
[R]
INST_FIN
= T1,
[R]
NB_BLOC =
/
1,
[DEFECT]
/Nb,
[I]
/
PUIS_USURE
= been able,
[R]

# definition of the law of wear
/
LOI_USURE
= “ARCHARD”,
[KN]
/
MOBILE
= _F (
COEF_USURE = k_t,
[R]
),
OBSTACLE = _F (
COEF_USURE = k_o,
[R]
),
/
MATER_USURE =
“mat1_mat2”,
[KN]
USURE_OBST =
/
“NOT”,
[DEFECT]
/“YES”,
# division the figure of play in sectors
/
SECTOR
=
_F (
COEF_USURE_MOBILE
=
k_t, [R]
COEF_USURE_OBST = k_o
,
[R]
CONTACT =
“standard”, [kN]
ANGL_INIT
=
ang_i,
[R]
ANGL_FIN
=
ang_f,
[R]
),
/
LOI_USURE
=
“KWU_EPRI”, [kN]
/
MOBILE
= _F (
COEF_FNOR = K1_T, [R]
COEF_VTAN = K2_T, [R]
COEF_USURE= k3_t,
[R]
COEF_K
=
/k_t, [R]
/5., [DEFECT]
COEF_C
=
/c_t, [R]
/10., [DEFECT]
),
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
3/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
OBSTACLE = _F (
COEF_FNOR = k1_o,
[R]
COEF_VTAN = k2_o,
[R]
COEF_USURE= k3_o,
[R]
COEF_K
=
/k_o,
[R]
/
5.,
[DEFECT]
COEF_C
=
/c_o,
[R]
/
10.,
[DEFECT]
)
/
MATER_USURE =
“mat1_mat2”,
[KN]
USURE_OBST =
/
“NOT”,
[DEFECT]
/
“YES”,
FNOR_MAXI = fn,
[R]
VTAN_MAXI = vg,
[R]
/
LOI_USURE
=
“EDF_MZ”,
[KN]
/
MOBILE
= _F (
COEF_USURE=/a_t,
[R]
/
1.E-13, [DEFECT]
COEF_B =/b_t,
[R]
/
1.2,
[DEFECT]
COEF_N =/n_t,
[R]
/2.44E-08,
COEF_S =/s_t,
[R]
/1.14E-16,
),
OBSTACLE = _F (
COEF_USURE=/a_o,
[R]
/
1.E-13, [DEFECT]
COEF_B =/b_o,
[R]
/
1.2,
[DEFECT]
COEF_N =/n_o,
[R]
/2.44E-08,
COEF_S =/s_o,
[R]
/1.14E-16,
),
/
MATER_USURE =
“mat1_mat2”,
[KN]
USURE_OBST =
/
“NOT”,
[DEFECT]
/
“YES”,
# definition of the moments of calculation depth of wear
/
INST =
l_inst, [l_R]
/
LIST_INST
=
linst,
[listr8]
/
COEF_INST
=
coeff,
[R]
# definition of a title
TITRATE
= “montitre”, [l_Kn]
#
impression
information
INFORMATION
=/1,
[I]
/
2,
[DEFECT]
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
4/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
# definition of the table to enrich in the case of calculation with evolution #
plays
ETAT_INIT
= _F (
TABL_USURE
=
tresu,
[tabl_post_usur]
INST_INIT
=
tt,
[R]
),

# definition of the contact
/
CONTACT =
“GRAPPE_ALESAGE”,
[KN]
RAYON_MOBILE
= r_t, [R]
RAYON_OBST
= r_o, [R]
/
CONTACT =
“GRAPPE_1_ENCO”,
[KN]
/
CONTACT =
“GRAPPE_2_ENCO”,
[KN]
/
CONTACT =
“TUBE_BAV”,
[KN]
RAYON_MOBILE
= r_t
,
[R]
LARGEUR_OBST
= l_o
,
[R]
ANGL_INCLI
= Eng,
[R]
/
CONTACT =
“TUBE_ALESAGE”,
[KN]
RAYON_MOBILE
= r_t, [R]
RAYON_OBST =
r_o,
[R]
LARGEUR_OBST
= l_o
,
[R]
ANGL_INCLI
= Eng,
[R]
/
CONTACT =
“TUBE_3_ENCO”,
[KN]
RAYON_MOBILE
= r_t, [R]
RAYON_OBST =
r_o,
[R]
LARGEUR_OBST
= l_o
,
[R]
ANGL_ISTHME
= angli,
[R]
ANGL_INCLI
= Eng,
[R]
/
CONTACT =
“TUBE_4_ENCO”,
[KN]
RAYON_MOBILE
= r_t, [R]
RAYON_OBST =
r_o,
[R]
LARGEUR_OBST
= l_o
,
[R]
ANGL_ISTHME
= angli,
[R]
ANGL_INCLI
= Eng,
[R]
/
CONTACT =
“TUBE_TUBE”,
[KN]
RAYON_MOBILE
=
r_t, [R]
ANGL_INCLI
=
Eng,
[R]
# loading of a new tube
/
TUBE_NEUF
=
“YES”
[DEFECT]
)
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
5/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
3 Operands
We draw here the attention to some delicate points of the use of
POST_USURE
.
·
The result of
POST_USURE
does not depend on the final mechanical state of calculation but of all
the history of the shocks. It is thus very important to take into account every moment of
calculations, i.e. not to ask selective filing in
DYNA_TRAN_MODAL
.
·
The result of
POST_USURE
is very sensitive to the parameters of calculations, in particular with
richness of the modal base, and with the pitch of time. It is thus strongly advised to test
various modal bases (increasingly rich) and various pitches of time (more and more
small). For example, for the pitch of time, one will be able to test various values spaced from one
factor 10, then 2, in order to determine a range of pitch of time over which the result is
stable.
·
In the case of a vibratory calculation, one can have a result which is not representative of
real wear if the experiment is not long enough. In the same way, in the case of excitations
generated by chance, it is advised to carry out several hard copies before firing from
conclusions of dimensioning.
3.1
Node of impact and power of wear
3.1.1 Operand
PUIS_USURE
PUIS_USURE = been able
The power of wear is:
·
exit of the result of a transitory calculation by modal recombination, produced by the operator
DYNA_TRAN_MODAL
[U4.53.21] (operands following),
·
or given by the user who uses the operand then
PUIS_USURE
.
3.1.2 Operand
RESU_GENE
RESU_GENE = tg
Result of a transitory calculation by modal recombination, produced by the operator
DYNA_TRAN_MODAL
[U4.53.21].
3.1.3 Operand
NODE
NODE = noeu
Definition of the node of shock post-to be treated.
3.1.4 Operand
INST_INIT
INST_INIT = t0
Moment of beginning of the average of the signals (cf [§4]).
(
T
0
= 0.
default value).
3.1.5 Operand
INST_FIN
INST_FIN = T1
Moment of end of the average of the signals.
3.1.6 Operand
NB_BLOC
NB_BLOC = Nb
A number of temporal blocks of division interval [
T
0
,
T
1
] for the average of the signals
(
1
by defect).
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
6/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
3.2 Law
of wear
“ARCHARD”
[bib5]
3.2.1 Operand
LOI_USURE
LOI_USURE =
“ARCHARD”
Defines the law of wear in order to calculate worn volume.
The coefficient of wear of the law of Archard [bib5] is provided by the user or is taken in a base
data.
3.2.2 Word
key
MOBILE
MOBILE
Definition of the coefficient of wear of the mobile.

3.2.2.1 Operand
COEF_USURE
COEF_USURE
= k_t
Value of the coefficient of wear of the mobile.
3.2.3 Word
key
OBSTACLE
OBSTACLE
Definition of the coefficient of wear of the obstacle.

3.2.3.1 Operand
COEF_USURE
COEF_USURE
= k_o
Value of the coefficient of wear of the obstacle.
3.2.4 Operand
MATER_USURE
MATER_USURE = “mat1_mat2”
Recovery of the coefficients in a bank of data:
mat1: being the material of the bunch or tube (the mobile),
mat2: being the material of the obstacle.
3.2.5 Operand
USURE_OBST
USURE_OBST
=
/“YES”
/
“NOT”
[DEFECT]
Indicate if one wants to take into account the wear of the obstacle.
3.3
Law of wear '
KWU_EPRI
'[bib5]
3.3.1 Operand
LOI_USURE
LOI_USURE =
“KWU_EPRI”
Defines the law of wear in order to calculate worn volume.
3.3.2 Word
key
MOBILE
MOBILE
Definition of the coefficient of wear of the mobile (provided by the user or taken in the base of
data).
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
7/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A

3.3.2.1 Operands
COEF_ *
COEF_FNOR
= k1_t
Definition of the dimensional coefficient of correction in the case of pure impacts.
COEF_VTAN
= k2_t
Definition of the dimensional coefficient of correction in the case of slips.
COEF_USURE= k3_t
Definition of the coefficient of wear of reference.
COEF_K
=/k_t
/
5.
[DEFECT]
Definition of the constant.
COEF_C
=/c_t
/
10.
[DEFECT]
Definition of the constant.
3.3.3 Word
key
OBSTACLE
OBSTACLE
Definition of the coefficient of wear of the obstacle (provided by the user or taken in the base of
data).

3.3.3.1 Operands
COEF_ *
COEF_FNOR
= k1_o
Definition of the dimensional coefficient of correction in the case of pure impacts.
COEF_VTAN
= k2_o
Definition of the dimensional coefficient of correction in the case of slips.
COEF_USURE= k3_o
Definition of the coefficient of wear of reference.
COEF_K
=/k_o
/
5.
[DEFECT]
Definition of the constant.
COEF_C
=/c_o
/
10.
[DEFECT]
Definition of the constant.
3.3.4 Operand
MATER_USURE
MATER_USURE = “mat1_mat2”
Recovery of the coefficients in a bank of data =
mat1 = being the material of the bunch or the tube (the mobile),
mat2 = being the material of the obstacle.
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
8/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
3.3.5 Operand
USURE_OBST
USURE_OBST
=
/“YES”
/
“NOT”
[DEFECT]
Indicate if one wants to take into account the wear of the obstacle.
3.3.6 Operands
FNOR_MAXI/VTAN_MAXI
FNOR_MAXI = fn
Definition of the maximum normal force to take into account for the distribution of the 5 classes
for the law of wear
KWU_EPRI
.
VTAN_MAXI
= vg
Definition the speed of slip maximum to take into account for the distribution of the 5
classes for the law of wear
KWU_EPRI
.
3.4
Law of wear '
EDF_MZ
'[bib5]
3.4.1 Operand
LOI_USURE
LOI_USURE =
“EDF_MZ”
Defines the law of wear in order to calculate worn volume.
3.4.2 Word
key
MOBILE
MOBILE
Definition of the coefficient of wear of the mobile (provided by the user or taken in the base of
data).

3.4.2.1 Operands
COEF_ *
COEF_USURE
=/a_t
/
1.E-13
[DEFECT]
Definition of the coefficient of wear A.
COEF_B
=/b_t
/
1.2
[DEFECT]
Definition of the exponent of the power of wear B.
COEF_N
=/n_t
/
2.44E-08
[DEFECT]
Definition of the rate of deceleration N.
COEF_S
=/S_t
/
1.14E-16
[DEFECT]
Definition of the threshold S.
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
9/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
3.4.3 Word
key
OBSTACLE
OBSTACLE
Definition of the coefficient of wear of the obstacle (provided by the user or taken in the base of
data).

3.4.3.1 Operands
COEF_ *
COEF_USURE
=/a_o
/
1.E-13
[DEFECT]
Definition of the coefficient of wear A.
COEF_B
=/b_o
/
1.2
[DEFECT]
Definition of the exponent of the power of wear B.
COEF_N
=/n_o
/
2.44E-08
[DEFECT]
Definition of the rate of deceleration N.
COEF_S
=/s_o
/
1.14E-16
[DEFECT]
Definition of the threshold S.
3.4.4 Operand
MATER_USURE
MATER_USURE = “mat1_mat2”
Recovery of the coefficients in a bank of data =
mat1 = being the material of the bunch or the tube (the mobile),
mat2 = being the material of the obstacle.
3.4.5 Operand
USURE_OBST
USURE_OBST
=
/“YES”
/
“NOT”
[DEFECT]
Indicate if one wants to take into account the wear of the obstacle.
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
10/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
3.5 Operand
CONTACT
CONTACT
=
géom
Definition of the geometry of contact.
According to the type of contact, various geometrical relations between worn volumes and them
worn depths.
3.5.1 Operand
CONTACT
= '
GRAPPE_ALESAGE'
The bunch is centered in a boring. The trace of wear has a section in the shape of lunule. Volume
used is brought back to a surface used in a section.
3.5.2 Operand
CONTACT
=
“GRAPPE_1_ENCO”
The bunch is centered compared to the obstacle.
The card of guidance is made of a notch. Worn volume is brought back to a surface used in one
section.
The coefficients are founded at the same time on the experimental results and those of the return
of experiment. They apply only to the control rods.
3.5.3 Operand
CONTACT
=
“GRAPPE_2_ENCO”
The bunch is centered compared to the obstacle.
The card of guidance is made of two notches diametrically opposite. Worn volume is
brought back to a surface used in a section.
The coefficients are founded at the same time on the experimental results and those of the return
of experiment. They apply only to the control rods.
3.5.4 Operand
CONTACT
=
“TUBE_BAV”
Case 1:
The tube is presented vertically, the bar impacts perpendicular to the tube, one supposes that
bar does not wear (
USURE_OBST = “NOT”
).
Case 2:
The bar is presented tilted (operand
ANGL_INCLI
) compared to the tube, the bar impacts
perpendicular to the tube, it is supposed that the bar does not wear.
Case 3:
The tube is presented vertically, the bar impacts perpendicular to the tube, one takes into account
the wear of the bar (
USURE_OBST = “YES”
).
Case 4:
The bar is presented tilted (operand
ANGL_INCLI
) compared to the tube, the bar impacts
perpendicular to the tube, one takes into account the wear of the bar.
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
11/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
3.5.5 Operand
CONTACT
=
“TUBE_ALESAGE”
Case 1:
The tube is centered perfectly in an animated boring of a pure orbital movement and wears of
uniform manner on all the periphery in contact with the obstacle.
Case 2:
The tube is centered in an animated boring of a movement of impact-slips of the elliptic type
who leads to the formation of traces of wear of the cylindrical type diametrically opposite on the tube
and having a section in the shape of lunule.
Case 3:
The tube, animated of a movement of impact-slips, presents this time a slope by report/ratio
with the support (operand
ANGL_INCLI
). One obtains two symmetrical traces of wear in the shape of V on
tube.
3.5.6 Operand
CONTACT
=
“TUBE_3_ENCO”
Case 1:
The initial contact is carried out against an edge of one of the isthmuses of a trifoliate boring. The tube is supposed
centered perfectly compared to its obstacle. The trace of wear does not extend to the entire isthmus.
One does not take into account the wear of the obstacle.
Case 2:
Same assumptions as for case 1 except the position of the tube compared to the obstacle. One supposes
this time that the tube presents an angle of inclination (operand
ANGL_INCLI
).
3.5.7 Operand
CONTACT
=
“TUBE_4_ENCO”
Case 1:
The initial contact is carried out against an edge of one of the isthmuses of quadrifoliate boring. It is supposed
tube perfectly centered compared to its obstacle. The trace of wear does not extend to the isthmus all
entirety. One does not take into account the wear of the obstacle.
Case 2:
Same assumptions as for case 1 except the position of the tube compared to the obstacle. One supposes
this time that the tube presents an angle of inclination (operand
ANGL_INCLI
).
3.5.8 Operand
CONTACT
=
“TUBE_TUBE”
Following the rupture of a stopped tube, there can be contact between this tube and one of its neighbors. Wear
of the two tubes by accommodation of surfaces in contact led to the creation of two surfaces
plane.
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
12/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
3.6 Operand
RAYON_MOBILE
RAYON_MOBILE
=
r_t
Definition of the radius of the mobile (obligatory parameter).
3.7 Operand
RAYON_OBST
RAYON_OBST = r_o
Definition of the radius of the obstacle (parameter obligatory if the wear of the obstacle is taken in
count).
3.8 Operand
LARGEUR_OBST
LARGEUR_OBST
=
l_o
Definition of the width of the obstacle (parameter obligatory for the operands
TUBE_ *
).
3.9 Operand
ANGL_INCLI
ANGL_INCLI = Eng
Definition of the angle of inclination mobile/obstacle (optional parameter = value 0. is taken
by defect).
3.10 Operand
ANGL_ISTME
ANGL_ISTHME = angli
Definition of the angle of the isthmus of the geometry of contact (parameter obligatory for
operands
TUBE_3_ENCO
and
TUBE_4_ENCO
).
3.11 Operands
INST/LIST_INST/COEF_INST
INST
=
l_inst
Definition of the moments of calculation in the shape of a list of values.
LIST_INST = linst
Definition of the moments of calculation in the form of a concept of the type
listr8
.
COEF_INST = coeff
The moments given are to be multiplied by a coefficient
coeff
given, which makes it possible to pass
easily units IF with the natural units for a calculation of wear (the month of the year).
3.12 Operand
ETAT_INIT
3.12.1 Key word
TABL_USURE
TABL_USURE
=
tresu
[tabl_post_usure]
Definition of the table which one wishes to reactualize.
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
13/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
3.12.2 Key word
INST_INIT
INST_INIT
= tt
[R]
Definition of the moment from which one wishes to reactualize the table.
3.13 Operand
SECTOR
SECTOR
=
Definition of the various quantities necessary to cut out the figure of play in sectors
angular.
3.13.1 Key word
COEF_USURE_MOBILE
COEF_USURE_MOBILE
=
K_t
[R]
Definition of the coefficient of wear of the mobile within the meaning of the law of Archard for the sector.
3.13.2 Key word
COEF_USURE_OBST
COEF_USURE_OBST
= K_o
[R]
Definition of the coefficient of wear of the obstacle within the meaning of the law of Archard for the sector.
3.13.3 Key word
CONTACT
CONTACT = “standard”
[KN]
Definition of the geometry of the contact for the sector considered.
3.13.4 Key word
ANGL_INIT
ANGL_INIT
= ang_i
[R]
Definition of the initial angular value of the sector.
3.13.5 Key word
ANGL_FIN
ANGL_FIN = ang_f
[R]
Definition of the final angular value of the sector.
3.14 Operands
TITRATE/INFORMATION
TITRATE = “montitre”
Titrate that one wants to give to the result [U4.03.01].
INFORMATION
=
/1
/2
Level of impression
1
no impression.
2
impression of volumes and depths of wear at the specified moments
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
14/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
3.15 Count
produced
The control
POST_USURE
generate a concept of the type counts, whose contents are:
INST:
moments to which the user wishes to know the volume and the depth of wear,
V_usur_tube:
volume used on the level of the tube (for each moment specified by the user),
V_usur_obst:
volume used on the level of the obstacle (for each moment specified by the user),
P_usur_tube:
depth of wear on the level of the tube (for each moment specified by
the user).
The control
IMPR_TABLE
[U4.91.03] allows to print the results.
The operator
MODI_OBSTACLE
[U4.44.22] uses a structure of data of the type
tabl_post_usur
to take into account the evolution of the shapes of the parts in contact because of wear.


3.16 Loading of a new tube
For the processing of the wear of the control rods, the user with the possibility of taking in
count the change of a tube by a new tube by informing the key word
TUBE_NEUF = “YES”
If the user informs this key word, the operator modifies the values of wear of the tube (
V_USUR_TUBE
,
P_USUR_TUBE
,
V_USUR_TUBE_SECT
,
P_USUR_TUBE_SECT
,
V_USUR_TUBE_CUMU = 0
) in
count resulting from
POST_USURE
.
After restoring of certain values, the user must call upon
MODI_OBSTACLE
[U4.44.22]
to recompute the new figures of play.
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
15/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
4
Checking - Execution
4.1 Operand
MATER_USURE
It is checked that the material couple provided by the user is in the data base.
4.2 Operands
RESU_GENE
/
INST_INIT
/
INST_FIN
/
NB_BLOC
The value of
INST_FIN
is compared with the final moment
T
F
result
tran_gene
. The value of
INST_FIN
reserve is
()
min T, T
F
1
.
If the value of
INST_INIT
T
0
is higher than the value of
INST_FIN
, one stops in error.
Block 1
Block 2
F
shock
SEUIL_FORCE
INST_INIT
INST_FIN
DUREE_REPOS
Block 1: 1 shock
Block 2: 2 shocks
:
signal taken into account in the statistics
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
16/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
5 Example
dateu = DEFI_LIST_REEL (BEGINNING = 0.25,
INTERVAL = _F (JUSQU_A = 1., A NUMBER = 20),
_F (JUSQU_A = 5., A NUMBER = 10),
_F (JUSQU_A = 10., A NUMBER = 5)
)
#
us1 = POST_USURE (
PUIS_USURE = 0.312,
LOI_USURE = “ARCHARD”,
NB_BLOC = 4,
MOBILE = _F (COEF_USURE = 30.E-15),
OBSTACLE = _F (COEF_USURE = 20.E-15),
CONTACT = “GRAPPE_1_ENCO”,
RAYON_MOBILE = 0.00485,
RAYON_OBST = 0.00545,
LIST_INST = dateu,
COEF_INST = 31557600.,
TITRATE = “NO1 = Usure per years”,
INFORMATION = 2
)
#
us2 = POST_USURE (
RESU_GENE = dynamoda,
NODE = “NO1”,
LOI_USURE = “EDF_MZ”,
MOBILE = _F (
COEF_USURE = 1.e-13,
COEF_B = 1.2,
COEF_N = 2.44e-08,
COEF_S = 1.14e-16,
),
OBSTACLE = _F (
COEF_USURE = 1.e-13,
COEF_B = 1.2,
COEF_N = 2.44e-08,
COEF_S = 1.14e-16
),
USURE_OBST = “YES”,
CONTACT = “GRAPPE_1_ENCO”,
RAYON_MOBILE = 0.00485,
RAYON_OBST = 0.00545,
LIST_INST = dateu,
COEF_INST = 31557600.,
TITRATE = “NO1 = Usure per year”,
INFORMATION = 2
)
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
17/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A
6 Bibliography
[1]
ARCHARD J.F. : “Contact and Rubbing off flat surfaces” - Newspaper off Applied Physics, vol.24,
p. 24, 1953
[2]
P.J. HOFFMANN, D.A. STEININGER, T. SCHETTLER: “PWR Steam Generator Tubes Fretting
and Fatigue Wear Phenomena and correlations ". HTD - Vol. 230/- vol. 9, Symposium one
Flow-Indiced Vibration and Noise, volume 1, ASME, 1992
[3]
F. GUEROUT: “Wear of the tubes of Steam generators: “Geometrical Relations enters
worn volumes and depths " - HT.22/93-21A. EDF-DER. July 1993
[4]
F. GUEROUT, Mr. ZBINDEN: “Bibliographical Study of the models of wear. Review of
coefficients of wear available for the study of the damage of the tubes of Generators
vapors " - HT.22/93-56A. EDF-DER. November 1993
[5]
D. HARROWING: “Operators of calculations of wear” [R7.04.10]
background image
Code_Aster
®
Version
7.4
Titrate:
Operator
POST_USURE
Date:
19/05/05
Author (S):
S. LAMARCHE
,
E. BOYERE,
D. BOSSELUT
Key
:
U4.84.05-F
Page
:
18/18
Instruction manual
U4.8- booklet: Dedicated Post processing and analyzes
HT-66/05/004/A























Intentionally white left page.