This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Life Evaluation of an Angular Contact Wheel Bearing Based Upon Random Load Cycles
Annotation ability available
Sector:
Language:
English
Abstract
The life of a wheel bearing unit under real load conditions can now be calculated based on actual load histories. These load histories are recorded over many small but discrete time slices where the speed and loads within each time slice can be regarded as constant. This enables the equivalent load Peqv for each time slice to be evaluated by means of the classical bearing life theory of Lundberg and Palmgren. The relative damage contributed by each time slice is then obtained, and eventually, the overall probabilistic damage from the load histories can be established by accumulating the damage derived from each individual time slice. From the damage distribution, the resultant equivalent load PEQV, representing one/several sets of road recordings, can be evaluated using the Palmgren-Miner rule. This resultant equivalent load is then used to evaluate the bearing life by re-employing the bearing life theory of Lundberg and Palmgren. A computer package has been developed to perform the calculations.
Recommended Content
Citation
Ko, C., "Life Evaluation of an Angular Contact Wheel Bearing Based Upon Random Load Cycles," SAE Technical Paper 871981, 1987, https://doi.org/10.4271/871981.Also In
References
- DABELL, B.J. HILL. S.J. “The use of computers in fatigue design and development” Int. J. Fatigue January 1979
- NEUBER, H. “Theory of stress concentration for shear strained prismatic bodies with arbitrary non-linear stress-strain lav;” J. Appl. Mech 280 Trans. ASME 83 1961
- MATSUISHI, M. ENDO, T. “Fatigue of metals subjected to varying stresses” Paper presented at the Kyushu district meeting of the Japanese Society of Mechanical Engineers March 1968
- WATSON, P. DABELL, B.J. “Cycle counting and fatigue damage” J. Soc. Environmental Engs. 15-3 September 1976
- PALMGREN, A. “Die Lebensdauer von Kugellagern” ADVL 68 14 1924
- MINER, M.A. “Cumulative damage in fatigue” J. Appl. Mech. ASHE 12 1945
- GRUBISIC, V. FISCHER, G. “Automotive wheels, method and procedure for optimal design and testing” SAE Technical Paper Series, Int. Congress & Exposition 28th February 4th March 1983
- LANDGRAF, R.W. “Fatigue analysis of ground vehicle components” 1984
- LUNDBERG, G. PALMGREN, A. “Dynamic capacity of rolling bearings” Acta Polytechnica, Mech. Eng. Sciences l, R.S.A.E.E. 3 7 1947
- “Standard definitions of terms relating to fatigue testing and the statistical analysis of fatigue data.” ASTM Standards, E206-72 American Society for Testing and Materials
- WEIBULL, W. “A statistical theory of the strength of materials” Proc. Royal Swedish Inst. Eng. Research 151 Stockholm 1939
- ANDREASON, S. “Theoretical bases for the calculation of double row angular contact ball bearings carrying forces and moments” BBJ 70-07-11 Translated reprint from Konstruction 22 1970 7 245 248
- BLOMQVIST, L. “Computer program ANYSKF Theory Manual” SKF report GT75D5008
- KO, C.N. KNOBBOUT, K. “User's manual of wheel bearing life evaluation package - Version 1” SKF report NL84D007
- IOANNIDES, E. HARRIS, T.A. “A new fatigue life model for rolling bearings” ASHE J. Tribology 107 1985 367 378
- ZIENKIEWICZ, O.C. “The Finite Element method in structural and continuum mechanics” McGraw-Hill 1967
- DANG VAN, K. “On metals resistance to fatigue” Sciences et Techniques de 1'Armament 47 1973
- FLAVENOT, J.F. SKALLI, N. “Prix en compte des contraintes residuelles et des sollicitations combinées dans le calcul des pièces et structures en fatigue a long terme”
- ARGYRIS, J.H. Inaugural lecture - “The aircraft under stress and strain” Department of Aeronautical Structures, imperial College of Science and Technology London 8th May 1956
- SCHIJVE, J. “The accumulation of fatigue damage in aircraft materials and structures” AGARDograph 157 1972
- NAUMANN, E.C. HARDRATH, H.F. GUTHRIE, D.E. “Axial load fatigue tests of 2024-T3 and 7075-T6 aluminium-alloy sheet specimens under constant and variable amplitude loads” NASA TN D-212
- NAUMANN, E.C. “Evaluation of the influence of load randomization cycles on fatigue life” NASA TN D-1584
- CORBIN, P.L. NAUMANN, E.C. “Influence of programming techniques and of varying limit load factors on manoeuvre load fatigue test results” NASA TN D-3149
- SCHUTZ, D. “A standardized flight by flight test program for the fatigue life evaluation of wing components of transport aircraft” Fail Safe Aircraft Structures, RAE TR 73183 1973
- SCHUTZ, D. “The fatigue life under three different load spectra - Tests and Calculations” AGARD-CP-118, Symp. on Random Load Fatigue Lyngby, Denmark 1972