Square chubhu VS rectangular chubhu, ndeipi chimiro chakasimba?
Musiyano wekuita pakatirectangular chubhuuyesquare tubemumainjiniya maapplication anoda kuongororwa zvakadzama kubva kune akawanda ma mechanika maonero akadai sesimba, kuoma, kugadzikana, uye kutakura kugona.
1. Simba (kukotama uye torsion kuramba)
Kupeta simba:
Rectangular chubhu: Kana yaiswa pasi pekukotama kuremerwa nedivi rekureba nzira (kureba kutungamira), iyo chikamu inertia nguva yakakura, uye kuramba kubhenda kuri nani kupfuura iyo yesquare chubhu.
Semuenzaniso, simba rekukotama re100 × 50mm rectangular chubhu munzira refu yedivi rakakwirira kupfuura iro re75 × 75mm square chubhu.
Square chubhu: Iyo inertia nguva yakafanana mumativi ese, uye kuita kwekukotama kunoenzanirana, asi kukosha kwayo kunowanzo kudiki pane kuya kwekureba kwedivi renzira yerectangular chubhu pasi penzvimbo imwechete yemuchinjikwa.
Mhedziso: Kana kutungamira kwekutakura kwakajeka (zvakadai sekugadzirwa kwedanda), rectangular tube iri nani; kana dhairekitori remutoro richichinja, chubhu yeskweya yakawedzera kuenzana.
Torsion simba:
Iyo torsion yenguva dzose yesquare chubhu yakakwira, iyo torsion kusagadzikana kugovera kwakawedzera yunifomu, uye torsion kuramba iri nani pane iyo yerectangular chubhu. Semuenzaniso, torsion resistance ye75 × 75mm square chubhu yakanyanya kusimba kupfuura iyo ye100 × 50mm rectangular chubhu.
Mhedziso: Kana iyo torsional mutoro uri kutonga (senge yekutumira shaft), masikweya machubhu ari nani.
2. Kuoma (anti-deformation kugona)
Kukombama kuomarara:
Kuomarara kunoenzana nenguva yekusaziva. Rectangular machubhu ane kuomarara kwepamusoro munzira refu yedivi, iyo inokodzera zviitiko zvinoda kuramba unidirectional deflection (senge matanda ebhiriji).
Square machubhu ane symmetrical bidirectional kuomarara uye akakodzera kune akawanda madirectional mitoro (senge makoramu).
Mhedziso: Kuomarara zvinodiwa zvinoenderana negwara rekutakura. Sarudza rectangular machubhu kune unidirectional mitoro; sarudza sikweya machubhu kune bidirectional mitoro.
3. Kugadzikana (buckling resistance)
Local buckling:
Rectangular chubhu kazhinji ane hombe hupamhi-ku-ukobvu reshiyo, uye dzakatetepa-madziro mativi anonyanya kujairana munharaunda buckling, kunyanya pasi compression kana shear mitoro.
Machubhu eskweya ane kugadzikana kwenzvimbo kuri nani nekuda kweiyo symmetrical muchinjiko-chikamu.
Pakazara buckling (Euler buckling):
Buckling load ine hukama neiyo shoma radius ye gyration yemuchinjiko-chikamu. Iyo radius ye gyration yemachubhu masikweya yakafanana mumativi ese, nepo radius ye gyration yemachubhu ane rectangular ari mupfupi side direction idiki, zvichiita kuti anyanye kubhuroka.
Mhedziso: Square tubes inosarudzwa kune nhengo dzinomanikidza (dzakadai sembiru); kana iyo yakareba yerutivi kutungamira kweiyo rectangular chubhu inomanikidzwa, inogona kubhadharwa nekugadzira.
4. Kutakura simba (axial uye yakasanganiswa mitoro)
Axial compression:
Kutakura kugona kune hukama neyakayambuka-chikamu nzvimbo uye mutete ratio. Pasi penzvimbo imwechete yemuchinjikwa-sectional, machubhu emativi ane kukwirira kwekutakura nekuda kweiyo yakakura kutenderera radius.
Yakasanganiswa mutoro (yakasanganiswa compression uye kukotama):
Rectangular machubhu anogona kutora mukana weiyo yakagadziridzwa dhizaini kana yekukotama nhanho yakajeka (senge yakatwasuka mutoro padivi refu); square tubes akakodzera bidirectional kukotama nguva.
5. Zvimwe zvinhu
Kushandiswa kwezvinhu:
Rectangular chubhu inoshanda zvakanyanya uye inochengetedza zvinhu kana zvichiiswa kune unidirectional bending; square tubes inowedzera hupfumi pasi pezvizhinji-directional mitoro.
Connection nyore:
Nekuda kwekuenzanisa kwesquare tubes, node connections (senge welding uye mabhoti) zviri nyore; rectangular chubhu dzinoda kufunga nezve directionality.
Mamiriro ekushandisa:
Rectangular machubhu: matanda ekuvaka, maoko e crane, mota chassis (yakajeka mutoro wekutungamira).
Square tubes: mbiru dzekuvaka, nzvimbo trusses, mechanical fremu (multi-directional mitoro).
Nguva yekutumira: May-28-2025
