舶用歯車の疲労強度に関する研究 : 浸炭焼入歯車の疲労強度設計についての一指針

概要

論文の詳細を見る
On the design for the strength of carburized gears, it is necessary to take the fatigue strength of gear teeth into consideration especially. It is not yet clear which formulas, such as AGMA's, DIN's, JGMA's etc., are the most useful for the fatigue strength design of gears. So, this report presents a design formlula for the fatigue strength of marine carburized gears on basis of our experimental results. The basic equation in a gear is calculated as follows; St≦β_1・β_2・β_3・β_4・β_5・β_6・S_<αo>/fm where, St =maximum actual tooth bending stress (kg/mm^2) Sαo = bending stress obtained by the pulsating fatigue test results of gear under optimum carburizing conditions (kg/mm^2) fm = factor of safety (=2) β_1 = carburizing conditions factor β_2 = hardening ratio factor β_3 = size factor β_4 = surface roughness factor β_5 = load stress form factor β_6 = carburizing process factor Estimating the safety of some actual marine carburized gears by equation above, it turned out to be. fm≧2 and safe enough.
社団法人日本船舶海洋工学会の論文
1983-03-30