Isizathu sokuba izibane zesitalato zelanga zithandwa kangaka kukuba amandla asetyenziswa ekukhanyiseni avela kumandla elanga, ngoko ke izibane zelanga azinawo umbane ofunekayo. Zithini iinkcukacha zoyilo lwazo?izibane zesitalato zelangaOku kulandelayo yintshayelelo kule nkalo.
Iinkcukacha zoyilo lwesibane sesitalato selanga:
1) Uyilo lokuthambekela
Ukuze iimodyuli zeeseli zelanga zifumane imitha yelanga eninzi kangangoko ngonyaka, kufuneka sikhethe i-engile yokuthambekela efanelekileyo kwiimodyuli zeeseli zelanga.
Ingxoxo malunga nokuthambekela okufanelekileyo kweemodyuli zeseli zelanga isekelwe kwiindawo ezahlukeneyo.
2) Uyilo olumelana nomoya
Kwinkqubo yezibane zesitalato zelanga, uyilo lokumelana nomoya yenye yezona zinto zibalulekileyo kwisakhiwo. Uyilo olumelana nomoya lwahlulwe kakhulu lwaba ngamacandelo amabini, enye luyilo olumelana nomoya lwebracket yemodyuli yebhetri, kwaye enye luyilo olumelana nomoya lwepali yesibane.
(1) Uyilo lokumelana nomoya lwebracket yemodyuli yeseli yelanga
Ngokwedatha yeparameter yobugcisa yemodyuli yebhetriumenzi, uxinzelelo oluya phezulu olunokumelana nemodyuli yeseli yelanga yi-2700Pa. Ukuba i-coefficient yokumelana nomoya ikhethwe njenge-27m/s (elingana nenkanyamba yobukhulu be-10), ngokwe-hydrodynamics engaxineneyo, uxinzelelo lomoya oluthwalwa yimodyuli yebhetri yi-365Pa kuphela. Ke ngoko, imodyuli ngokwayo inokumelana ngokupheleleyo nesantya somoya se-27m/s ngaphandle komonakalo. Ke ngoko, isitshixo ekufuneka siqwalaselwe kuyilo lunxibelelwano phakathi kwebracket yemodyuli yebhetri kunye nepali yesibane.
Kuyilo lwenkqubo yezibane zesitalato ngokubanzi, unxibelelwano phakathi kwesibiyeli semodyuli yebhetri kunye nepali yesibane luyilelwe ukuba lulungiswe kwaye luqhagamshelwe ngepali yebholiti.
(2) Uyilo lokumelana nomoyaisibane sesitalato
Iiparameter zezibane zesitalato zezi zilandelayo:
Uthambekelo lwephaneli yebhetri A=15o ukuphakama kwepali yesibane=6m
Yila kwaye ukhethe ububanzi be-weld ezantsi kwepali yesibane δ = 3.75mm ipali yokukhanya esezantsi ububanzi bangaphandle = 132mm
Umphezulu we-weld ngumphezulu owonakeleyo wepali yesibane. Umgama ukusuka kwindawo yokubala u-P wexesha lokuxhathisa u-W kumphezulu wokusilela kwepali yesibane ukuya kumgca wesenzo womthwalo wesenzo wephaneli yebhetri u-F kwipali yesibane ngu
I-PQ = [6000+(150+6)/tan16o] × I-Sin16o = 1545mm=1.845m. Ke ngoko, umzuzu wesenzo somthwalo womoya kumphezulu wokusilela kwepali yesibane M=F × 1.845。
Ngokwesantya somoya esiphezulu esivumelekileyo soyilo se-27m/s, umthwalo osisiseko wephaneli yezibane zesitalato zelanga ezineentloko ezimbini ze-30W yi-480N. Xa ucinga ngokhuseleko lwe-1.3, i-F=1.3 × 480 =624N.
Ngoko ke, M=F × 1.545 = 949 × 1.545 = 1466N.m.
Ngokwezibalo, umzuzu wokuxhathisa womphezulu wokusilela kwe-toroidal W=π × （3r2 δ+ 3r δ 2+ δ 3）。
Kule fomyula ingentla, u-r bububanzi bangaphakathi beringi, u-δ bububanzi beringi.
Umzuzu wokumelana nokusilela komhlaba W=π × (3r2 δ+ 3r δ 2+ δ 3)
=π × （3 × amakhulu asibhozo anamashumi amane anesibini × 4+3 × amashumi asibhozo anesine × 42+43）= 88768mm3
=88.768 × 10－6 m3
Uxinzelelo olubangelwa yintshukumo yomthwalo womoya kumphezulu wokusilela = M/W
= 1466/（88.768 × 10－6） =16.5 × 106pa =16.5 Mpa<<215Mpa
Apho, i-215 Mpa ngamandla okugoba entsimbi ye-Q235.
Ukugalelwa kwesiseko kufuneka kuhambelane nemigaqo yokwakha yokukhanyisa indlela. Ungaze usike iikona kwaye usike izinto zokwakha isiseko esincinci kakhulu, kungenjalo umbindi womxhuzulane wesibane sesitalato uya kuba ungazinzile, kwaye kulula ukusilahla kwaye kubangele iingozi zokhuseleko.
Ukuba i-engile yokuthambekela kwenkxaso yelanga yenzelwe ukuba ibe nkulu kakhulu, iya kwandisa ukumelana nomoya. I-engile efanelekileyo mayiyilwe ngaphandle kokuchaphazela ukumelana nomoya kunye nesantya sokuguqulwa kokukhanya kwelanga.
Ngoko ke, logama nje ububanzi kunye nobukhulu bepali yesibane kunye ne-weld zihlangabezana neemfuno zoyilo, kwaye ulwakhiwo lwesiseko lufanelekile, ukuthambekela kwemodyuli yelanga kufanelekile, ukumelana nomoya kwepali yesibane akukho ngxaki.
Ixesha lokuthumela: Feb-03-2023
