Ukucubungula ukwakha ukwelula kuyindlela yokucubungula ukunyathela esebenzisa isikhunta ukwakha indawo engenalutho evulekile engxenyeni evulekile engenalutho. Njengenye yezinqubo eziyinhloko zokunyathela, ukwelula kusetshenziswa kabanzi. Inqubo yokwelula ingasetshenziswa ukwenza izingxenye zodonga ezimile okwesilinda, okuyisikwele, okunezinyathelo, okuyisiyingi, okuyindilinga, okufana nokwe-parabolic kanye nezinye izingxenye zodonga ezimile ngendlela engajwayelekile. Uma ihlanganiswa nezinye izinqubo zokwakha ukunyathela, ingakhiqiza nezingxenye ezinezimo eziyinkimbinkimbi kakhulu.

Sebenzisa imishini yokunyathela ukuze ucubungule imikhiqizo yokwenza ukwelula, okuhlanganisa: ukucubungula ukwelula, ukucubungula kabusha ukwelula, ukubuyisela ukwelula kanye nokucubungula ukwelula okunciphile, njll. Ukucubungula ukwelula: Sebenzisa idivayisi yepuleti yokucindezela ukuze usebenzise amandla okubhoboza kwesibhakela ukuze udonse ingxenye noma yonke into eyisicaba emgodini wesikhunta esigobile ukuze usenze sibe isitsha esinephansi. Ukucubungula udonga oluseceleni lwesitsha oluhambisana nesiqondiso sokulula kuwukucubungula ukwelula okumsulwa, kuyilapho ukucubungula ukwelula kwezitsha ezimise okwe-conical (noma i-pyramid), izitsha ze-hemispherical, kanye nezitsha zomphezulu we-parabolic kuhlanganisa nokucubungula okwandisiwe.

Ukucubungula kabusha: okungukuthi, ngemikhiqizo edonswe ngokujulile engenakuqedwa ngenqubo eyodwa yokwelula, kuyadingeka ukwelula umkhiqizo owenziwe ngemva kokucubungula ukwelula ukuze kwandiswe ukujula kwesitsha esenziwe.

Ukucubungula ukwelula okuphambene: Yelula okuphambene nengxenye yokusebenza eyeluliwe enqubweni yangaphambilini, uhlangothi lwangaphakathi lwengxenye yokusebenza luba uhlangothi lwangaphandle, kanti ukucubungula kokwenza ububanzi bangaphandle bube buncane kuba buncane. Emgodini wesikhunta esigobile esinobubanzi obuncane obungaphandle, ububanzi bangaphandle besitsha esinaphansi buyancishiswa, futhi ubukhulu bodonga buyancishiswa ngesikhathi esifanayo, okungagcini nje ngokuqeda ukuphambuka kobukhulu bodonga, kodwa futhi kwenza ubuso besitsha bube bushelelezi.

Okulandelayo kwethula izinhlobo ezimbili zokunyathela ngensimbi kanye nokunwebeka lapho kusetshenziswa imishini yokunyathela:

1. Ukucutshungulwa komdwebo oyisilinda + (Umdwebo oyindilinga): ukwelulwa kwemikhiqizo esilinda. Kokubili i-flange kanye nephansi kusesimweni esiphansi, udonga oluseceleni lwesilinda luyi-axisymmetric, futhi ukuguqulwa kusatshalaliswa ngokulinganayo kumjikelezo ofanayo, kanti izinwele eziku-flange zonakele ukuze kubangele ukuguqulwa komdwebo okujulile.

2. Ukucutshungulwa komdwebo we-ellipse+ (Umdwebo we-ellipse): Ukuguquka kwezinwele ku-flange kuwukuguquguquka okuqinile, kodwa inani lokuguquka kanye nesilinganiso sokuguquka kuyashintsha ngokuhambisana nesimo se-contour. Uma ukugoba kukhulu, kulapho inani lokuguquka kwepulasitiki koboya likhula khona, futhi ngokuphambene nalokho, uma ukugoba kuncane, kulapho ukuguquka kwepulasitiki koboya kuncane.