Answer
A cikin ƙirar bazarar raƙuman ruwa, adadin raƙuman ruwa $ N$ kowane juyi shine direba na farko na duka kaya da damuwa. An ƙididdige damuwa $ \ sigma$ a matsayin $ \ sigma = (3 \ cdot \ pi \ cdot P \ cdot D_m) / (4 \ cdot b \ cdot t^2 \ cdot N^2) $. Wannan ma'auni yana nuna madaidaicin alakar murabba'i tsakanin adadin raƙuman ruwa da damuwa. Ta ƙara $N$ don ƙayyadaddun kaya $P$, matakin damuwa yana raguwa sosai. Koyaya, haɓaka a $N$ shima yana ƙara ƙimar bazara $k$. Masu zanen kaya a cikin tsarin watsawa na motoci sukan inganta $ N $ don daidaita ƙarfin da ake buƙata a kan iyakar gajiyar kayan aiki, yawanci suna nufin matakan damuwa da ke ƙasa da kashi 80 na ƙananan ƙarfin 17-7PH CH900 don tabbatar da tsawon lokaci a lokacin aiki mai girma.