Official Answer
Answer
Matsakaicin nauyin $P_{max}$ yana kaiwa lokacin da matsananciyar damuwa $\sigma$ yayi daidai da ƙarfin yawan amfanin ƙasa $S_y$ na kayan, daidaitacce don ma'aunin aminci. Sake tsara tsarin damuwa: $P_{max} = \frac{4 b t^2 N^2 S_y}{3 \pi D_m}$. Don yawancin karafa na bazara, ƙirar ƙira a tsayin aiki yana iyakance zuwa $ 80 \% $ na ƙaramin ƙarfi don tabbatar da kwanciyar hankali na dogon lokaci. Idan lissafin $P$ da tsarin ke buƙata ya wuce $P_{max}$, dole ne mai zane ya ƙara kauri $t$, ƙara girman radial $b$, ko zaɓi abu mai girman $S_y$, kamar 17-7PH akan 302 bakin karfe.
