This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Steady and Cyclic Thermal Stresses of Diesel Engine Pistons - A Photothermoelastic Study and Calculation
Annotation ability available
Sector:
Language:
English
Abstract
A photothermoelastic analysis was used to investigate the steady thermal stresses of the pistons of 4-cycle, high-speed diesel engines, and the cyclic temperature swing of the piston surface in relation to the cyclic thermal stresses was investigated with a digital computer method.
The investigation revealed that axisymmetric analysis as an approximation was enough to estimate the steady thermal stresses, and that a major cause of the stress was the radial thermal gradient in the top of the pistons.
The cyclic temperature swing and cyclic thermal stress, calculated in connection with time-averaged heat flux, reached considerably higher value than that calculated by usually used equations of instantaneous heat-transfer coefficient.
Recommended Content
Technical Paper | Developmental Work of High Speed 3.0 Liter Diesel Engine |
Technical Paper | Diesel Piston Debond - A Perspective |
Technical Paper | Impingement Identification in a High Speed Diesel Engine Using Piston Surface Temperature Measurements |
Authors
Citation
Mihara, M., Kokubu, T., and Hirata, K., "Steady and Cyclic Thermal Stresses of Diesel Engine Pistons - A Photothermoelastic Study and Calculation," SAE Technical Paper 720025, 1972, https://doi.org/10.4271/720025.Also In
References
- Fitzgeorge D. Pope J. A. “An Investigation of the Factors Contributing to the Failure of Diesel Engine Pistons and Cylinder Covers.” Trans. N.E. Coast Inst, of Eng. and Shipbuilders 71 5 1955 163
- Eichelberg G. “Some New Investigations on Old Combustion Engine Problems.” Engineering London 1939 148 603
- Dennis R. A. Radford J. M “Piston Stresses-Theoretical and Experimental Developments.” Proc. Inst. Mech. Engrs. 179 3C 1964-1965 19 37
- Anderko K. Keilbach D. Wacker B. 28 3 1967 93 100
- Whitehouse N. D. Stotter A. Gray C. “Piston Thermal Loading.” Proc. Inst. Mech. Engrs. 179 3C 1964-1965 158 167
- Fiskaa G. Iversen P. Sarsten A. “Computer Calculation of Stresses in Axi-symmetric Thermally Loaded Components.” Proc. Inst. Mech. Engrs. 182 3L 1967-1968 152 168
- Scholes A. Strover E. M. “A Method for the Stress Analysis of Pistons.” Proc. Inst. Mech. Engrs. 182 3L 1967-1968 169 175
- Ibrahim S. M. McCallion H. “Gas Load and Thermal Stresses in Diesel Engines Pistons and Valves.” Proc. Inst. Mech. Engrs. 182 3L 9167-1968 176 185
- Rohrle M. 31 10 October 1970 414 422
- Hansen A. Rasmussen M. Sarsten A. “Thermal Loading of Diesel Engine Components and its Prediction.” 9th International Congress on Combustion Engines Stockholm 1971
- French C.C.J. “Taking the Heat Off the Highly Boosted Diesel.” Paper 690463 SAE Mid-Year Meeting Chicago May 1969
- Okamura K. Yamada K. “Development of Mitsubishi DC2 Series V-Type Diesel Engines.” Paper 690745 SAE National Powerplant Meeting Cleveland October 1969
- Woschni G. “A Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine.” Paper 670931 SAE Combined Fuels & Lubricants, Powerplant and Transportation Meetings Pittsburgh November 1967
- Henein N. A. “Instantaneous Heat Transfer Rates and Coefficients Between the Gas and Combustion Chamber of a Diesel Engine.” Paper 9698 International Automotive Engineering Congress Detroit January 1965
- LeFeuvre T. Myers P. S. Uehara O. A. “Experimental Instantaneous Heat Fluxes in a Diesel Engine and Their Correlation.” Paper 690464 SAE Mid-Year Meeting Chicago May 1969
- Uehara O. A. Myers P. S. “Diesel Combustion Temperatures-Influence of Fuels.” SAE Transactions 3 January 1949 179
- Hill P. R. “A Method of Computing the Transient Temperature of Thick Walls from Arbitrary Variation of Adiabatic-Wall Temperature and Heat-Transfer Coefficient.” NACA Report 1372 1958