Official Answer
Answer
Ana ƙididdige rayuwar gajiya ta amfani da dangantakar Goodman ko ma'aunin Gerber. Don 17-7PH CH900, ana ƙididdige damuwar aiki $\sigma$ azaman $\sigma = \ frac{3 \pi P D_m}{4 b t^2 N^2}$. Matsakaicin matsananciyar damuwa $\sigma_a = \ frac{\sigma_{max} - \sigma_{min}}{2}$ kuma yana nufin damuwa $\sigma_m = \frac{\sigma_{max} + \sigma_{min}}{2}$ ana kwatanta su da iyakar juriyar kayan $S_e da ƙarancin ƙarfi $ $n_f$ ana bada shi ta $\frac{1}{n_f} = \frac{\sigma_a}{S_e} + \frac{\sigma_m}{S_u}$. Don aikace-aikacen hawan keke ($> 10 ^ 6$), matsakaicin matsananciyar damuwa bai kamata ya wuce 50% na ƙaramin ƙarfi don lissafin tasirin ƙarewar saman da yuwuwar damuwa daga tsarin murɗawa.
