Tüve mahu ja koormuse kalkulaator Metsandustööriistad
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Tüve mahu ja koormuse kalkulaator

Arvuta tüvi maht from small-end diameter, butt-end diameter, and length, then hinda laadi kaal from tihedus.

Editable maht rules and tihedus tables make it easier to adapt the page to regional tüvi grading and veok loading workflows.

Supports Smalian, Frustum, Keskmine diameter, and custom multiplier rules Calculates batch read for multiple tüvi lots in one screen Normalizes tihedus to kg/m³ and maht to m³ internally Estimates veok laadi suhe and approximate veok arv from payload

Mida see tööriist suudab

  • Hinda tüvi maht from small-end diameter, butt-end diameter, and length with a choice of maht rule.
  • Convert tihedus tables to kg/m³ internally so that kohalik ühikud and reference values stay comparable.
  • Track many tüvi lots at once and keep a rough inventory record for the yard or landing.
  • Hinda veok laadi suhe, remaining payload, and approximate veok arv when capacity is entered.
  • Save the praegune conditions in the brauser, a jaga URL, JSON, or CSV depending on how much data you want to carry.

Kuidas kasutada

  1. Choose the measurement system and the default diameter, length, and kaal ühikud.
  2. Enter small-end diameter, butt-end diameter, length, and arv for each tüvi lot.
  3. Pick a maht rule and a tihedus profile, then check the resulting maht and kaal.
  4. Lisa veok capacity if you want a payload suhe and an approximate veok arv.
  5. Use JSON or CSV export to jaga the praegune state, or save the page locally for later use.

Examples

Metric log lot

Input

Small-end 18 cm, butt-end 28 cm, length 4 m, count 20, density 860 kg/m3, rule Smalian

Output

About 0.174 m3 per log, 3.48 m3 per lot, and about 2.99 t total weight

Imperial log lot

Input

Small-end 7 in, butt-end 11 in, length 16 ft, count 10, density 54 lb/ft3, rule Smalian

Output

About 7.42 ft3 per log, about 399 lb per log, and about 3,990 lb total weight

Regional override

Input

Apply a Smalian × 0.92 regional factor and replace the density table with a local reference set

Output

The difference from the default values becomes visible so that teams can align on one shared assumption

Sõnastik

Small-end diameter

The diameter at the thinner end of the tüvi. Kohalik rules may treat bark inclusion differently.

Butt-end diameter

The diameter at the thicker end of the tüvi. Some regional rules call it the butt-end diameter.

Smalian

A maht formula that multiplies the average of the two end areas by the tüvi length.

Frustum

A frustum approximation that uses both end diameters and the tüvi length.

Density

Mass per ühik maht. It changes a lot with species, niiskus content, and bark assumptions.

Load ratio

The jaga of veok payload used by the praegune laadi, shown as a percentage of the maximum payload.

Formulas

  • A(d) = π × d2 / 4
  • Smalian: V = L × (As + Ab) / 2
  • Frustum: V = π × L × (ds2 + ds × db + db2) / 12
  • Mean diameter: V = π × L × ((ds + db) / 4)2
  • Weight = Volume × Density
  • Load ratio = Total weight / Truck max payload
  • Approximate truck count = ceil(Load ratio)

Korduma kippuvad küsimused

Which maht rule should I use?

Use the regional rule that your yard, mill, or buyer expects. When no kohalik rule is defined, start with Smalian.

Can I enter mixed ühikud?

Yes. The page accepts ühik-tagged values such as 18 cm, 7 in, 16 ft, 54 lb/ft³, and 0.86 g/cm3.

Can I jaga custom rules or tihedus tables?

Yes. Use JSON export and import for the full libraries. The jaga URL is for the praegune operating state ainult.

Does the veok payload check enforce legal limits?

No. It ainult shows an approximate suhe and veok arv. Always confirm legal and company limits separately.

Kas saan seda mobiilis kasutada?

Yes. The page switches to sisend and väljund tabs on small screens, and the main calculation stays in the brauser.

Olulised märkused

  • Tihedus changes with species, niiskus content, bark, and kohalik measuring practice.
  • Maht rules also vary by region. Always keep the rule name and alus visible when you jaga the tulemus.
  • Veok payload tulemused are approximate ainult. Confirm the actual vehicle spec, tee rules, and company policy before dispatch.
  • See leht on mõeldud hinnangute ja lao haldamiseks, mitte seaduslike ülekoormuskontrollide või konstruktsioonilise projekteerimise jaoks.