Chubhu yemativi maviri VS chubhu yemativi maviri, ndeipi chimiro chakasimba?
Musiyano wekushanda pakatichubhu yerectangularuyechubhu yemativi manamukushandiswa kweinjiniya kunofanirwa kuongororwa zvizere kubva pamaonero akasiyana-siyana emakanika akadai sesimba, kuomarara, kugadzikana, uye kugona kwekutakura.
1. Simba (kukotama uye kuramba kutenderera)
Simba rekukotama:
Chubhu ine rectangular: Kana yaiswa mutoro wakakombama parutivi rurefu (kureba), nguva yekusagadzikana kwechikamu yakakura, uye kuramba kwekukombama kuri nani zvakanyanya kupfuura kwechubhu ine rectangular.
Semuenzaniso, simba rekukotama kwechubhu re rectangular re 100×50mm munzira refu yedivi rakakwirira kupfuura 75×75mm square chubhu.
Tubhu remativi mana: Nguva yekusashanda zvakanaka yakafanana kumativi ese, uye mashandiro ekukotama akafanana, asi kukosha kwayo kunowanzova kudiki pane kwenzira refu yerutivi rwetubhu rectangular pasi penzvimbo imwecheteyo yemuchinjikwa.
Mhedziso: Kana divi remutoro rakajeka (senge danda remubato), chubhu re rectangular riri nani; kana divi remutoro richichinja-chinja, chubhu re square rinenge rakaringana.
Simba rekutenderera:
Kutenderera kwechubhu yechikwere kwakakwira, kupararira kwekumanikidzwa kwechubhu kwakafanana, uye kuramba kwekutenderera kuri nani pane kwechubhu yechikwere. Semuenzaniso, kuramba kwekutenderera kwechubhu yechikwere ye75×75mm kwakasimba zvakanyanya kupfuura kwechubhu yechikwere ye100×50mm.
Mhedziso: Kana mutoro wekutenderera uri mukuru (semugodhi wekutumira), machubhu akaenzana ari nani.
2. Kuomarara (kukwanisa kudzivirira kuputsika)
Kuomarara kwekukotama:
Kuomarara kunoenderana nenguva yekusasimba. Machubhu erectangular ane kuomarara kwakanyanya mudivi refu, izvo zvakakodzera kune mamiriro ezvinhu anoda kuramba kutsauka kwedivi rimwe chete (senge matanda emabhiriji).
Machubhu ane mativi maviri akafanana uye akakodzera mitoro yakawanda (yakadai semakoramu).
Mhedziso: Zvinodiwa pakuomarara zvinoenderana nekwakatangira mutoro. Sarudza machubhu erectangular ekutakura zvinhu zvakanangana nedivi rimwe chete; sarudza machubhu akaenzana ekutakura zvinhu zvakanangana nedivi rimwe chete.
3. Kugadzikana (kuramba kusingadzoreki)
Kusunga kwemuno:
Machubhu erectangular anowanzova nehupamhi hwakakura kubva pakukora kusvika paupamhi, uye zvikamu zvine madziro matete zvinonyanya kukanganiswa nekubatana kwenzvimbo, kunyanya kana paine zvinhu zvakamanikidzwa kana kuchekwa.
Machubhu emativi ane kugadzikana kuri nani panzvimbo yawo nekuda kwekubatana kwawo kwakaenzana.
Kusunga zvese (Euler kusunga):
Mutoro wekubatanidza mativi unoenderana nehukuru hushoma hwe gyration ye cross-section. Hurefu hwe gyration yemachubhu e square hwakafanana kumativi ese, nepo hurefu hwe gyration yemachubhu e rectangular mudivi pfupi huri hudiki, zvichiita kuti zvive nyore ku gyration.
Mhedziso: Machubhu ane mativi mana anonyanya kufarirwa kune nhengo dzinodzvanyirira (senge mbiru); kana divi refu rechubhu re rectangular rakaganhurirwa, rinogona kubhadharwa nekugadzira.
4. Kutakura simba (axial uye mitoro yakabatana)
Kudzvinyirirwa kweAxial:
Kugona kwekutakura zvinhu kunoenderana nenzvimbo yakachinjika uye chiyero chekutetepa. Pasi penzvimbo imwe chete yakachinjika, machubhu ane mativi mana ane simba rekutakura zvinhu rakakwirira nekuda kwehukuru hwenzvimbo yawo yekutenderera.
Mutoro wakabatanidzwa (kudzvanywa pamwe chete uye kukotama):
Machubhu erectangular anogona kushandisa marongerwo akagadziridzwa kana divi rekukombama rakajeka (senge mutoro wakamira parutivi rurefu); machubhu emativi mana akakodzera nguva dzekukombama mbiri.
5. Zvimwe zvinhu
Kushandiswa kwezvinhu:
Machubhu erectangular anoshanda zviri nani uye anochengetedza zvinhu kana akakomberedzwa nedivi rimwe chete; machubhu emativi mana anodhura zvishoma kana akaremerwa nedivi rimwe chete.
Kureruka kwekubatanidza:
Nekuda kwekuenzana kwemachubhu akaenzana, kubatana kwemanode (senge welding nemabolts) kuri nyore; machubhu akaenzana anofanira kufunga nezvekuti anoenda kupi.
Mamiriro ekushandisa:
Machubhu erectangular: matanda ekuvaka, maoko ecrane, chassis yemotokari (gwara rakajeka remutoro).
Machubhu emativi: mbiru dzekuvaka, matanda emuchadenga, mafuremu emakanika (mitoro yemativi akawanda).
Nguva yekutumira: Chivabvu-28-2025
