Steady and Cyclic Thermal Stresses of Diesel Engine Pistons - A Photothermoelastic Study and Calculation Nagasaki Technical Institute, Mitsubishi Heavy Industries, Limited (Japan)

Format:

Conference/Event

Author/Creator:

Mihara, M., author.

Conference Name:

1972 Automotive Engineering Congress and Exposition (1972-01-10 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1972

Summary:

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

Notes:

Vendor supplied data

Publisher Number:

720025

Access Restriction:

Restricted for use by site license