1. Tabbatar da ka'idar jiki na ainihin dabara
Dokar Kare Mass
Dukkan hanyoyin suna dogara ne akan yanayin jiki na m = ρ × V (mass = density × girma)
Ƙimar yawa
Ƙa'idar ƙira na aluminium mai tsabta: 2,698 kg/m³ (20 ℃)
Matsakaicin ƙimar 2,700 kg/m³ yana da ma'ana don lissafin masana'antu (kuskure <0.1%)
2. Tabbatar da Tsarukan Tsarin Geometric
2.1. Madaidaicin ƙira mai girma na geometric
Ƙuntataccen dabarar bututun square:
Wannan gaskiya ne lokacin da kaurin bangon bututu ya kasance daidai kuma kusurwar ciki shine kusurwar dama (ainihin bututun murabba'in yana da juyawa mai zagaye, kuma kuskuren ka'idar shine kusan 1-3%).
3. Tabbatar da daidaiton tsarin naúrar
Binciken mahimmin haɗarin lissafin ƙetarewa
4. Gyaran Dacewar Injiniya
4.1. Diyya ga abubuwan da ba su dace ba
4.2. Ƙididdigar tasirin haƙuri
Haƙurin kauri ± 10% → Rage nauyi ± (8% ~ 12%) (ɓangarorin bangon bakin ciki sun fi kulawa)
Magani: W ainihin = W ka'idar × (1 + Δt / t) ( Δt: karkatacciyar kauri)
5. Gwajin yanayin iyaka
Tabbacin shari'a mai girma:
Matsalolin anomaly yawa
7xxx alloy (7075): Ma'auni mai yawa 2.810 g/cm³ → Idan 2.7g/cm³ aka yi amfani da kuskure, kuskuren shine +4.1%.
Teburin tsari
4t(A + B)- 4t² daidaitaccen lissafin injiniya ne wanda ake ƙididdige shi ta hanyar ninka kewayen sashin ta kaurin bango sannan a cire kusurwoyi huɗu.
Misalin lissafi:
1.6061 aluminum farantin karfe(1000 × 500 × 10 mm, tsawon 2 m): W = 1000 × 500 × 2 × 0.0027 = 27 kg
2.7075 zagaye tube(diamita na waje 50 mm, kauri na bango 3 mm, tsayin 1.5 m): W = [(50-3) × 3 × 3.1416 × 1.5] × 0.00283 ≈ 5.65 kg
3. Kambun bututu(40×40×2mm, tsawon 3m): W = [2×2×(40+40-4)×3]×0.0027×0.98 ≈ 2.42 kg
Gudun Aiki Na Shawarar
1. Zaɓi yawa → 2. Auna ainihin girman → 3. Zaɓi nau'in ramuwa → 4. Yi lissafin ta dabara
Lokacin aikawa: Juni-17-2025
