Isexwayiso Esibalulekile: Lona umbhalo wengobo yomlando womlando, hhayi ukubala komshini kwamanje, ukuhlola ubungozi noma imanuwali yokusebenza. Inani lama-revolutions, stroke, displacement, force, coefficients kanye namanani ethebula kufanele ahlolwe ngokuvumelana nemithethonqubo evumelekile, imibhalo yomkhiqizi kanye nezimo ezithile zokukhiqiza.
Lo mbhalo awuwona umnikelo womshini noma amadokhumenti esevisi ye-Savo Kusić. Okunikezwayo kwamanje kugxile kumafasitela, iminyango nezixazululo ezihambisanayo.
Inombolo yama-revolution kanye nosayizi we-stroke
Inombolo yokuphenduka kwe-shaft inquma ukukhiqiza kwesango. Isibalo esiphezulu sama-revolutions, siphakamisa ukukhiqiza ngosayizi ofanayo we-stroke yesango. Kodwa-ke, ngaphandle kokubala kwangaphambili, inani lokuguquguquka kwe-shaft akufanele likhuphuke, njengoba lokhu kuholela ekwandeni okukhulu kwamandla anamandla aqondile, angabangela ukuhluleka kwesango. Inani lokuphenduka kwe-shaft lisukela ku-200 kuye ku-350 ngeminithi kubagcini-sango besimanje. Ifreyimu enamasaha aqinile iya phezulu naphansi futhi ngale ndlela izingodo ziyasikwa. Ibanga elihanjwa uhlaka lwesango ukusuka endaweni ephansi ukuya endaweni ephezulu kakhulu libizwa ngokuthi usayizi we-gatter stroke.
Usayizi we-stroke uthinta ukukhiqiza konogada. Ngokunyuka kwe-stroke, ngenani elifanayo lokuguqulwa, ukukhiqizwa kwesango kuyanda. Usayizi we-stroke ungandiswa kuphela uma ukubala kwenziwa kusengaphambili.
Isinyathelo - ukuthutha ukuhamba kwamalogi ngesikhathi sokujika okukodwa okugcwele kwe-gate shaft. Usayizi wesinyathelo ngamandla emoto yokushayela unganqunywa ifomula:
Ukususwa Kwelogi namaphethini Omlando
Δ =140N / Σn mm lapho u-Δ eyisinyathelo selogi noma ugongolo phakathi nokujika okukodwa okugcwele kwe-gate shaft, mm; N - amandla emoto k x s; Σ - isamba sokuphakama kokusikeka phakathi nobude belogi; h - isamba sokuphakama kokusikeka phakathi kobude belogi, m; n - inombolo yezinguquko ze-gater shaft, imiz.
Isamba sobude bokusikeka singabalwa ngokwefomu Σh = α x dsr x z, lapho u-α eyi-coefficient, ebonisa ubude obumaphakathi bokusikeka futhi okuthathwayo.0,65-0,80lapho izingodo zisikwa. Uma i-beam isikwa, le-coefficient ilingana nobunye; dsr- ububanzi maphakathi nelogi; z - inani lamasaha aqiniswe kuhlaka.
Ukusika i-oki, usayizi wokufuduka ulingana noku60%, okwe-larch -85%, ngencwadi -70%, nge-birch -80%kusuka kuma-offsets wephayini nespruce anikezwe etafuleni1.
Idatha yethebula yamasango aqondile
| D | 10-12 | 13-14 | 15-16 | 17-18 | 19-20 | 21-22 | 23-24 | 25-26 | 27-28 | 29-30 | 31-32 | 33-34 | 35-36 | 37-38 | 39-40 | 41-44 | 45-48 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| α | |||||||||||||||||
| 0 | 33 | 33 | 31 | 28 | 26 | 24 | 22 | 20 | 19 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 11 |
| 100 | – | – | 32 | 29 | 26 | 25 | 23 | 20 | 19 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 11 |
| 120 | – | – | – | 30 | 27 | 26 | 24 | 21 | 19 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 11 |
| 140 | – | – | – | – | 28 | 26 | 24 | 22 | 20 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 11 |
| 160 | – | – | – | – | – | 27 | 24 | 23 | 21 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
| 180 | – | – | – | – | – | – | 25 | 24 | 22 | 19 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
| 200 | – | – | – | – | – | – | 24 | 23 | 20 | 18 | 16 | 15 | 14 | 13 | 13 | 11 | |
| 220 | – | – | – | – | – | – | – | – | 24 | 21 | 19 | 17 | 15 | 15 | 13 | 13 | 11 |
| 240 | – | – | – | – | – | – | – | – | – | 22 | 20 | 18 | 16 | 15 | 14 | 13 | 11 |
| 260 | – | – | – | – | – | – | – | – | – | – | 21 | 19 | 17 | 16 | 14 | 14 | 12 |
| 280 | – | – | – | – | – | – | – | – | – | – | – | 21 | 18 | 16 | 15 | 14 | 12 |
| 300 | – | – | – | – | – | – | – | – | – | – | – | – | 20 | 16 | 16 | 15 | 12 |