1. Manatokonga o te maapono tinana o te tauira matua
Ture Tiaki Papatipu
Ko nga tauira katoa e ahu mai ana i te ahua o te m=ρ×V (papatipu = kiato × rōrahi)
Uara kiato
Kiato ariā o te konumohe parakore: 2,698 kg/m³ (20 ℃)
Ko te uara tata o te 2,700 kg/m³ he whaitake mo nga tatauranga ahumahi (hapa <0.1%)
2. Manatokonga o te Rigorousness of Geometric Formulas
2.1. tātai rōrahi āhuahanga paerewa
Ngā herenga tātai ngongo tapawhā:
He pono tenei i te wa e rite ana te matotoru o te pakitara ngongo me te koki o roto he koki tika (ko te ngongo tapawha tuuturu he whakawhitinga porotaka, a ko te hapa o te whakaaro he 1-3%).
3. Manatokonga Tauritenga Pūnaha Waehe
Te rangahau ira morearea mo te tataunga-waewae
4. Whakatikatika Tikanga Hangarau
4.1. Te utu mo nga mea kore-pai
4.2. Te inenga o te paanga o te manawanui
Te Matotoru ±10% → Taumaha inehe ±(8% ~ 12%) (he tairongo ake nga waahanga angiangi-taiepa)
Rongoā: W tūturu = W ariā × (1 + Δt / t) ( Δt : ine mātotoru)
5. Whakamātautau Tikanga rohe
Manatoko take tino nui:
Te tauari anomaly kiato
7xxx koranu (7075): Ine kiato 2.810 g/cm³ → Mena ka pohehe te whakamahi 2.7g/cm³, ko te hapa he +4.1%.
ripanga tātai
Ko te 4t(A + B)- Ko te 4t² he tatauranga miihini paerewa ka tatauhia ma te whakarea i te paenga o te waahanga ki te matotoru pakitara ka tango i nga kokonga e wha.
tauira tātai:
1.6061 pereti konumohe(1000 × 500 × 10 mm, roa 2 m): W = 1000 × 500 × 2 × 0.0027 = 27 kg
2.7075 ngongo porohita(te diameter o waho 50 mm, te matotoru pakitara 3 mm, te roa 1.5 m): W = [(50-3)×3×3.1416×1.5]×0.00283 ≈ 5.65 kg
3. ngongo tapawha(40×40×2mm, roa 3m): W = [2×2×(40+40-4)×3]×0.0027×0.98 ≈ 2.42 kg
Rere Mahi Manakohia
1. Tīpakohia kiato → 2. Ine te rahi tūturu → 3. Tīpakohia te tauwehe utu → 4. Tātaihia mā te tātai
Wā tuku: Hune-17-2025
