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ANSYS .
.
SWT .
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2 2004 ]13.[ ]14-18[
SAE1045] 19 [ .
ANSYS ) 1 ( .
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SWT .
1 Troyani 2 Maringa
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1 . ) ( :) ( .
Mechanical desktop 2 . .
2 . .
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ENC45E(AISI/SAE1045) 2 ) "" (.
) 3( ANSYS ]20 [ . ) (
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3 . .
MPa 202000E= 292/0= . SOLID45]20 21 [ ) 4 ( .
) (x, y, z .
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4 . ANSYS.
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. 145800 152270 .
5 . .
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] 22-24.[ . ) ( . 3 .
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. . . ]25 26[ .
x z y ) 3 ( ] 25[ . ) ( .
]22 23 25 26 [ 1 .
1- ) ]22 23 25 26[ (.
Radial Force (z direction) 412.89N
Radial Force (y direction) 192.57N
Axial Force (x direction) 57.11N
Coupling (M) 68N.m
Impeller Weight (w) -58.9N
6 ) 6) a(( ) 6) b (( . 6) c ( ) ( z
y ) ( z y x ) x ( .
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SOLID 6) d( . ) ( .
(a) (b)
(d) (c)
6 . )a( )b( )c ( )d.(
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(a) (b)
(d) (c)
7 . Sx ) a, b ( von-Mises )c ,d( .
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5 . 8 500 . 9 -
)von-Mises ( 7 MPa80 62 % .
8 . : :
500 .
9 . : von-Mises : von-Mises
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10 11 x . x . .
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10 . Sx .
11 . x .
. x
12 . .
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12 . .
SWT
. .
. SWT ] 26 .[ :
(1) cfff
fbffa NN
EN b 222max
)1( YZ ) ( )1 ( . Nf
Nf . SWT ] 27 28[ 2 .
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2- SWT ENC45E(AISI/SAE1045).
Young�s Modulus (E) 202GPa Fatigue Strength Coefficient ( f ') 948MPa
Poisson�s Ratio ( ) 0.292 Fatigue Ductility Coefficient ( f') 0.260
Density ( ) 7870kg/m3 Fatigue Strength Exponent (b) -0.092
Tensile Yield Stress ( o) 382MPa Fatigue Ductility Exponent (c) -0.445
Tensile Ultimate Stress ( ut) 621MPa Maximum Strain Amplitude ( a) FEA
Maximum Stress at the Principal Direction ( max) FEA Fatigue Life (Nf) Eq. (1)
2 )1 ( . SWT) max. a ( .
13 . SWT ENC45E(AISI/SAE1045).
SWT max. a=0.003129 Nf=1.44e+17 .
.
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) ( von-Mises 62 % .
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1. Neumann, B., Interaction between geometry and performance of a centrifugal pump, Mechanical Engineering Publications Ltd., (1991).
2. Shaikh, H., Kathak, H.S., Gnanamoorthy, J.B., Analysis of service water pump shaft failure, Prakt. Meta., 27(7)(1999)362.
3. Fraccis, P., Shaft failure, Some common causes, Mach. Prod. Eng., (1974)124-195.
4. Peterson, R. E., Stress Concentration Design Factors, Third Edition, John Wiley and Sons Inc., 1953 issue. Roark's Formulas for Stress and Strain, by R.J. Roark and W.C. Young, 5th Edition, McGraw-Hill (1975).
5. Pilkey, W.D., Peterson’s stress concentration factors, 2nd Edition, New York, John Wiley & Sons (1997).
6. Hardy S.J., Malik, N.H., A survey of post-Peterson stress concentration factor data, Int J Fatigue, 14(3)( 1992)147-53.
7. Mervin stains Xavier, fatigue & fracture and defect assessment, Materials and Fatigue, Mervin stains Xavier (2004).
8. Troyani N., Gomes C., Sterlacci G., Theoretical stress concentration factor for short rectangular plates with centered circular holes, Journal of Mechanical Design, Transactions of the ASME, 124(2002)126�8.
9. Troyani N., Marin A., Garcia H., Rodriguez F., Rodriguez H., Gomes C., Theoretical stress concentration factors for short shouldered plates subjected to uniform tension, Journal of Strain Analysis, 38(2)( 2003)103�13.
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10. Troyani N., Sterlacci G., Morillo C., Gomes C., Some observations on the influence of length on the theoretical stress concentration factors, Fifth World Congress on Computational Mechanics, Vienna (2002).
11. Troyani N., Sterlacci G., Gomes C., Simultaneous considerations of length and boundary conditions on theoretical stress concentration factors, International Journal of Fatigue, 25(2003)353�355 Technical note.
12. Troyani N., Herna´ndez, S. I., Villarroel, G., Pollonais, Y., Gomes, C., Theoretical stress concentration factors for short flat bars with opposite U-shaped notches subjected to in-plane bending, International Journal of Fatigue 26(2004)1303�1310.
13. Maringa, M., Dimension of dog bone specimens and numerical analysis of different fillet radius, clamp area and pinhole loading on the stresses in such specimens, African Journal of Science and Technology (AJST), Science and Engineering Series, 5(2)( 2004)60-72.
14. Lancha, A. M., Serrano, M., Gomez Briceno, D., Failure analysis of a condensate pump shaft, Engineering Failure Analysis, 6(1999)337-353.
15. Das, G., Sinha, A.N., Mishra (Pathak), S.K., Bhattacharya, D.K., Failure analysis of counter shafts of a centrifugal pump, Engineering Failure Analysis, 6(1999)267-276.
16. Berndta, F., van Bennekomb, A., Pump shaft failures - a compendium of case studies, Engineering Failure Analysis, 8(2001)135-144.
17. Lancha, A.M., Serrano, M., Lapena, J., Gomez-Briceno, D., Failure analysis of a river water circulating pump shaft from a NPP, Engineering Failure Analysis, 8 (2001) 271-291.
18. Gautam Das, Ashok Kumar Ray, Sabita Ghosh, Swapan Kumar Das, Dipak Kumar Bhattacharya., Fatigue failure of a boiler feed pump rotor shaft, Engineering Failure Analysis, 10(2003)725�732.
19. Jayanta Dasa, Srinivasan M. Sivakumarb, Multiaxial fatigue life prediction of a high temperature steam turbine rotor using a critical plane approach, Engineering Failure Analysis, 7(2000)347-358.
20. Swanson Analysis Systems Inc., ANSYS, Revision 9.
21. Swanson Analysis Systems Inc., ANSYS, Structural nonlinearities, User�s Guide, for revision 5, vol. 2, Chapters 13 and 14, (1993).
22. Anderson, H.H., centrifugal pumps: Trade&Technical Press Ltd., 3rd edition (1980)107-113.
23. Florjancic, D., Handbook for pump users (in Slovene), University Ljubljana, (2002).
24. Neumann, B., Interaction between geometry and performance of a centrifugal pump, Mechanical Engineering Publications Ltd., (1991).
25. Stepanoff, A.J., Centrifugal and axial flow pumps, Wiley, (1957).
26. Florjancic, D., sulzer Centrifugal pump Handbook, sulzer Brothers Limited, Winterthur, Switzerland Pump Division, (1987)31-36.
27. Dowling, N. E., Mechanical Behavior of Materials, 2nd Edition, Prentice-Hall, Chapters 10, 11 and 14, (1999).
28. Mechanical Engineer’s Handbook, 2nd Edition, John Wiley & Son Inc. (1998).
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