平歯車の曲げ応力について : (第2報, 歯の応力集中係数と曲げ応力計算式)

抄録

In the present paper the authors studied the position of the weakest section of gear tooth and the stress concentration factor at the tensile-side fillet of tooth. Then the authors calculated the stress concentration factors for some components of the force on the tooth profile, and found the relation among these factors. Consequently the following formula has been introduced for the bending stress of gear tooth : σ_t=(1+0.08 S/ρ){0.66σ_Nb+0.40√(σ_Nb²+36τ_N²)+1.15σ_Nc} By this formula the authors calculated the bending stress of gear tooth of some shapes, and compared the result with that of photoelastic experiments.