Answer
Uburebure bw'akazi ($ H_w $) ni umwanya wa axial isoko ifata munsi yumutwaro wihariye. Kugira ngo wirinde guhindagurika kwa plastike, guhangayikishwa na $ H_w $ ntibigomba kurenza imbaraga zumusaruro ($ S_y $) wibikoresho. Ku masoko yubatswe, guhangayika ni $ S = \ frac {3 \ pi \ cdot P \ cdot D_m} {4 \ cdot b \ cdot t ^ 2 imes N ^ 2} $. Impamvu z'umutekano ni $ SF = S_y / S $. Niba $ H_w $ yegeranye cyane nuburebure bukomeye ($ H_s = n \ cdot t $), isoko yinjira mumurongo utari umurongo aho umutwaro nyirizina urenze umutwaro wabazwe bitewe no guhuza hagati. Abashushanya bagomba kwemeza ko $ H_w> H_s + (0.1 \ inshuro f_ {yose}) $ kugirango bakomeze umurongo kandi birinde kunanirwa umunaniro hakiri kare biterwa no guhangayikishwa n’ibanze ku burebure bukomeye.
