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圧縮コイルバネの計算 |
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工事名
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装置名
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バネ材質 |
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SUS-WH |
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最大許容応力 |
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68 |
kg/mm^2 |
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横弾性係数 |
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G : |
8200 |
kg/mm^2 |
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線径 |
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d : |
5 |
mm |
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コイル平均径 |
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D : |
35 |
mm |
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有効巻き数 |
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n : |
6 |
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自由高さ |
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H0 : |
92 |
mm |
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取付時高さ |
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H1 : |
80 |
mm |
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荷重計算高さ |
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H2 : |
72 |
mm |
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使用最大たわみ時高さ |
Hmax : |
70 |
mm |
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密着高さ |
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Hmin = (n + 1.5) * d |
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37.5 |
mm |
(両端の座の巻き数 1) |
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バネ指数 |
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C = D/d |
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7.00 |
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(4〜10が適当) |
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応力修正係数 |
k = ((4C-1)/(4C-4))+(0.615/C) |
1.213 |
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バネ定数 |
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p = (G * d^4)/(8*n*D^3) |
2.490282 |
kg/mm |
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取付時 |
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たわみ |
δ1 = H0 - H1 |
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12 |
mm |
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荷重 |
P1= p * δ1 |
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29.88338 |
kg |
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剪断応力 |
τ1 = (k * 8 * D * P1) / (π * d^3) |
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25.84268 |
kg/mm^2 |
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荷重計算高さ時 |
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たわみ |
δ2 = H0 - H2 |
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20 |
mm |
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荷重 |
P2= p * δ2 |
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49.80564 |
kg |
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剪断応力 |
τ2 = (k * 8 * D * P2) / (π * d^3) |
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43.07113 |
kg/mm^2 |
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使用最大たわみ時 |
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たわみ |
δmax = H0 - Hmax |
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22 |
mm |
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荷重 |
Pmax= p * δmax |
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54.7862 |
kg |
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剪断応力 |
τmax = (k * 8 * D * Pmax) / (π * d^3) |
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47.37825 |
kg/mm^2 |
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