ENGINEERING CALCULATORS
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Engineering calculators (Beta)
Build a signed dimensional chain and compare worst-case bounds with assumption-based RSS.
Click the grid to add ordered vertices. Edit coordinates in mm; separate holes with a blank line. The last vertex closes to the first automatically.
Choose units and enter numbers. Full-width digits and fractions such as 1/8 or 1 3/8 are accepted. Changing a unit converts the entered value.
Reference calculation only. Results do not certify suitability for an actual design or its safety.
Inputs: select a blue symbol to edit Results: red-orange values and lines
3D shows an illustrative extrusion. Its display length does not enter the section calculations. Edit dimensions in 2D.
Y = Σ(si ni); interval = Σ sorted(si[ni+loi, ni+hii]); RSS = √Σ[(hii−loi)/2]²
Displayed values are rounded. Diagrams illustrate the calculation conditions. Initial material and fluid properties are examples; replace them with values for the actual material, temperature and conditions.
ReferenceEquations assume particular loads, supports and deformation ranges. Check inputs, units and the applicability of each equation. Diagrams explain conditions; they are not manufacturing drawings or proof of safety.
Material values are typical values or reference ranges, not certified product properties or ready-to-use design allowables. They vary with standards, product form, dimensions, temper and temperature. Check the specifications and inspection certificates for the actual product.
Displayed safety factors and checks apply only to the supplied inputs and calculation model. They do not automatically establish the safety of a complete design, including code compliance, service life, fatigue or joints. For actual design, manufacture and use, separately verify applicable regulations and standards, product specifications, and the necessary tests and engineering review.
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足す寸法・引く寸法を並べ、最悪値と仮定付きRSSを比較します。
選択した形状・計算方法により、使う項目は変わります。実際の計算は上の図と入力欄で行えます。
寸法列など、選択した方法の条件を入力欄で設定します。
Y = Σ(si ni); interval = Σ sorted(si[ni+loi, ni+hii]); RSS = √Σ[(hii−loi)/2]²
1〜40項の符号付き寸法鎖です。下・上偏差は符号付きで入力します。最悪値は各許容区間を足し合わせます。RSS参考区間は独立な正規ばらつき・各区間中心が工程平均・共通の包含係数を仮定します。実工程の平均・相関・分布を確認した結果ではなく、保証範囲や合格率ではありません。
現在選択中の方法には、操作欄の「計算式・適用条件」を使ってください。参考計算であり、設計全体の安全性を保証するものではありません。
Build a signed dimensional chain and compare worst-case bounds with assumption-based RSS.
The selected model determines which of these inputs and outputs apply. Use the working diagram and input panel above to calculate.
Enter the dimensional chain or model-specific conditions in the input panel.
Y = Σ(si ni); interval = Σ sorted(si[ni+loi, ni+hii]); RSS = √Σ[(hii−loi)/2]²
Signed chain of 1–40 dimensions with signed lower and upper deviations. Worst-case bounds sum the permitted intervals. RSS reference values assume independent normal variation, means at interval centres and a common coverage factor. Actual means, correlation and distributions are not verified; this is not a guaranteed range or yield probability.
The displayed formula and conditions in the working panel apply to the currently selected model. Reference calculation only; it does not certify a complete design.
図で条件を整理してから計算し、最後に実際の部品仕様を確認します。
Understand conditions with diagrams, calculate, then verify actual specifications.
説明用の別モデルです。適用条件を確認してください。数値は自動転記しません。
A separate explanatory model. Check its assumptions; values are not transferred.
