Official Answer
Answer
Maɓuɓɓugan ruwan raƙuman raƙuman ruwa sun ƙunshi juzu'i da yawa da aka naɗe su a layi daya, yana haifar da ƙarfin lodi mafi girma a cikin ƙaramin sawun ƙafa. A lokacin matsawa, raƙuman ruwa suna karkata, yana haifar da karuwa a matsakaicin diamita ($ D_m$). Ana iya ƙididdige faɗaɗawar radial $ Delta D $ ta $\Delta D = 0.045 imes _x000c_rac{\delta^2 imes N^2}{D_m}$ don wasu geometries, inda $\delta$ shine jujjuyawar kowane igiyar ruwa. Idan izinin matsugunin bai isa ba, bazarar za ta ɗaure da ID na buroshi, yana haifar da juzu'i mai haifar da juzu'i da gazawar gajiya da wuri. Dole ne injiniyoyi su ƙayyade diamita na 'aiki a cikin gidaje' wanda ke lissafin matsakaicin faɗaɗawa a tsayi mai ƙarfi, yawanci gami da gefen aminci na 3-5%.
