1. Nkwenye nke ụkpụrụ anụ ahụ nke usoro isi
Iwu nke Nchekwa Mass
Usoro niile dabere na ọdịdị anụ ahụ nke m = ρ × V (oke = njupụta × olu)
Uru njupụta
Theoretical njupụta nke aluminom dị ọcha: 2,698 kg/m³ (20℃)
Ihe ruru 2,700 kg/m³ bụ ihe ezi uche dị na ya maka mgbako ụlọ ọrụ (njehie <0.1%)
2. Nkwenye nke siri ike nke usoro geometric
2.1. Usoro olu geometric ọkọlọtọ
Mgbochi usoro tube square:
Nke a bụ eziokwu mgbe ọkpụrụkpụ mgbidi tube dị n'otu na akụkụ ime bụ akụkụ ziri ezi (tube square ahụ nwere ntụgharị okirikiri, na njehie usoro ihe dị ka 1-3%).
3. Nkwenye nkwenye n'usoro nke otu
Nnyocha ebe ihe egwu na-agbakọ gafere nkeji
4. Mmezi Kwesịrị Ekwesị Injinia
4.1. Nkwụghachi maka ihe ndị na-adịghị mma
4.2. Ọnụ ọgụgụ nke mmetụta ndidi
Nlegide ịdị arọ ± 10% → Mgbanwe ịdị arọ ± (8% ~ 12%) (akụkụ ndị nwere mgbidi na-enwe mmetụta karịa)
Ngwọta: W n'ezie = W theoretical × (1 + Δt / t) ( Δt : ọkpụrụkpụ deviation )
5. Nnwale ọnọdụ ókè
Nnwale ikpe dị oke egwu:
Njupụta anomaly dịruru ná njọ
7xxx alloy (7075): Atụtara njupụta 2.810 g/cm³ → Ọ bụrụ na ejiri 2.7g/cm³ n'amaghị ama, njehie ahụ bụ +4.1%.
Tebụl okpokoro
4t (A + B) - 4t² bụ ngụkọta injinia ọkọlọtọ nke a na-agbakọ site n'ịba ụba nke akụkụ ahụ site na ọkpụrụkpụ mgbidi wee wepụ akụkụ anọ ahụ.
Ọmụmaatụ mgbako:
1.6061 aluminum efere(1000 × 500 × 10 mm, ogologo 2 m): W = 1000 × 500 × 2 × 0.0027 = 27 n'arọ
2.7075 tube gburugburu( dayameta mpụta 50 mm, ọkpụrụkpụ mgbidi 3 mm, ogologo 1.5 m): W = [(50-3) × 3 × 3.1416 × 1.5] × 0.00283 ≈ 5.65 kg
3. Square tube(40×40×2mm, ogologo 3m): W = [2×2×(40+40-4)×3]×0.0027×0.98 ≈ 2.42 n'arọ
Usoro ọrụ akwadoro
1. Họrọ njupụta → 2. Tulee nha n'ezie → 3. Họrọ ihe nkwụghachi ụgwọ → 4. Gbakọọ site na usoro
Oge nzipu: Jun-17-2025
