1. Netefatso ea molao-motheo oa 'mele oa foromo ea mantlha
Molao oa Paballo ea 'Misa
Liforomo tsohle li ipapisitse le sebopeho sa 'mele sa m=ρ×V (boima = density × volume)
Tekanyetso ea boleng
Khopolo-taba ea aluminium e hloekileng: 2,698 kg/m³ (20℃)
Theko e hakanyetsoang ea 2,700 kg/m³ e ea utloahala lipalo tsa indasteri (phoso <0.1%).
2. Netefatso ea ho Tiea ha Liforomo tsa Geometri
2.1. Foromo e tloaelehileng ea molumo oa jiometri
Lithibelo tsa foromo ea li-square tube:
Sena ke 'nete ha botenya ba lebota la tube bo lekana' me lehlakoreng le ka hare ke angle e nepahetseng (sekoti sa 'nete se na le phetoho e pota-potileng,' me phoso ea theory e ka bang 1-3%).
3. Netefatso ea Boemo ba Tsamaiso ea Yuniti
Patlisiso ea ntlha ea kotsi ea ho bala likarolo tse fapaneng
4. Phetoho ea ho Tšoaneleha ha Boenjiniere
4.1. Matšeliso bakeng sa lintlha tse sa nepahalang
4.2. Quantification ea phello ea mamello
Mamello ea botenya ± 10% → Ho kheloha boima ba 'mele ±(8% ~ 12%) (likarolo tse nang le mabota a masesaane li bonolo haholoanyane)
Tharollo: W ea sebele = W ea khopolo-taba × (1 + Δt / t) ( Δt : kheloha ea botenya)
5. Teko ea Boemo ba Meeli
Netefatso ea boemo bo feteletseng:
Boemo bo sa tloaelehang ba batho
7xxx alloy (7075): Lekanyo la boima bo lekantsoeng 2.810 g/cm³ → Haeba 2.7g/cm³ e sebelisoa ka phoso, phoso ke +4.1%.
Tafole ea foromo
4t(A + B)- 4t² ke palo e tloaelehileng ea boenjineri e baloang ka ho atisa pherimithara ea karolo ka botenya ba lebota ebe o tlosa likhutlo tse 'ne.
Mohlala oa lipalo:
1.6061 poleiti ea aluminium(1000 × 500 × 10 limilimithara, bolelele ba 2 m): W = 1000 × 500 × 2 × 0.0027 = 27 kg
2.7075 tube e chitja(ka ntle bophara 50 limilimithara, lebota botenya 3 limilimithara, bolelele 1.5 limithara): W = [(50-3)×3×3.1416×1.5]×0.00283 ≈ 5.65 lik'hilograma
3. tube ea sekwere(40×40×2mm, bolelele ba 3m): W = [2×2×(40+40-4)×3]×0.0027×0.98 ≈ 2.42 kg
E khothalelitsoeng Ts'ebetso
1. Khetha boima ba 'mele → 2. Lekanya boholo ba 'nete → 3. Khetha lintlha tsa matšeliso → 4. Bala ka foromo
Nako ea poso: Jun-17-2025
