1. Kutsimikizira mfundo yakuthupi ya chilinganizo chachikulu
Lamulo la Kusunga Misa
Ma formula onse amatengera momwe thupi limakhalira m=ρ×V (misa = kachulukidwe × voliyumu)
Kachulukidwe mtengo
Theoretical kachulukidwe a aluminiyamu koyera: 2,698 kg/m³ (20 ℃)
Mtengo woyerekeza wa 2,700 kg/m³ ndiwokwanira powerengera mafakitale (zolakwika <0.1%)
2. Kutsimikizira Kukhwima kwa Mafomu a Geometric
2.1. Standard geometric volume formula
Zoletsa za Square chubu:
Izi ndi zoona pamene makulidwe a khoma la chubu ndi yunifolomu ndipo ngodya yamkati ndi ngodya yolondola (chubu chenichenicho chimakhala ndi kusintha kozungulira, ndipo cholakwika chamalingaliro ndi pafupifupi 1-3%).
3. Kutsimikizika kwa Unit System Consistency
Cross-unit calculation risk point kufufuza
4. Kusintha koyenera kwa Engineering
4.1. Kulipira kwa zinthu zomwe sizili bwino
4.2. Quantification ya kulolerana zotsatira
Kulolera makulidwe ± 10% → Kupatuka kwa kulemera ±(8% ~ 12%) (zigawo zokhala ndi mipanda yopyapyala zimamva bwino)
Yankho: W enieni = W zongopeka × (1 + Δt / t) ( Δt: kutembenuka kwa makulidwe)
5. Bundary Condition Test
Kutsimikizika kwakukulu:
Chochitika cha density anomaly
7xxx alloy (7075): Miyezo ya kachulukidwe 2.810 g/cm³ → Ngati 2.7g/cm³ agwiritsidwa ntchito molakwika, cholakwika ndi +4.1%.
Fomula tebulo
4t(A + B)- 4t² ndi chiwerengero cha uinjiniya chokhazikika chomwe chimawerengedwa pochulukitsa gawo la gawolo ndi makulidwe a khoma ndikuchotsa ngodya zinayi.
Chitsanzo chowerengera:
1.6061 mbale ya aluminiyamu(1000 × 500 × 10 mm, kutalika 2 m): W = 1000 × 500 × 2 × 0.0027 = 27 kg
2.7075 chubu lozungulira(kunja m'mimba mwake 50 mm, khoma makulidwe 3 mm, kutalika 1.5 m): W = [(50-3)×3×3.1416×1.5]×0.00283 ≈ 5.65 kg
3. Square chubu(40×40×2mm, kutalika 3m): W = [2×2×(40+40-4)×3]×0.0027×0.98 ≈ 2.42 kg
Kuyenda kovomerezeka
1. Sankhani kachulukidwe → 2. Yezerani kukula kwenikweni → 3. Sankhani chipukuta misozi → 4. Werengetsani ndi formula
Nthawi yotumiza: Jun-17-2025
