Centro de masa y momentos de inercia de masa para cuerpos 3D homogéneos
- Page ID
- 83870
Se muestra la forma con el volumen y la ubicación del centro de masa | Momentos masivos de inercia |
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Varilla Esbelta |
\(I_{xx} = I_{zz} = \dfrac{1}{12} ml^2\) \(I_{yy} = 0\) \(I_{xx'} = I_{zz'} = \dfrac{1}{3} ml^2\) |
Placa Rectangular Plana |
\(I_{xx} = \dfrac{1}{12} mh^2\) \(I_{yy} = \dfrac{1}{12} m (h^2 + b^2) \) \(I_{zz} = \dfrac{1}{12} mb^2\) |
Placa Circular Plana |
\(I_{xx} = I_{zz} = \dfrac{1}{4} mr^2\) \(I_{yy} = \dfrac{1}{2} mr^2\) |
Anillo Circular Delgado |
\(I_{xx} = I_{zz} = \dfrac{1}{2} mr^2\) \(I_{yy} = mr^2\) |
Prisma Rectangular \(Volume = dwh\) |
\ begin {alinear*} I_ {xx} &=\ frac {1} {12} m (h^2 + d^2)\\ [4pt] I_ {yy} &=\ frac {1} {12} m (d^2 + w^2)\\ [4pt] I_ {zz} &=\ frac {1} {12} m (h^2 + w^2)\ end {alinear*} |
Cilindro \(Volume = \pi r^2 h\) |
\( I_{xx} = I_{zz} = \dfrac{1}{12} m(3r^2 + h^2) \) \(I_{yy} = \dfrac{1}{2} mr^2\) |
Carcasa cilíndrica delgada |
\(I_{xx} = I_{zz} = \dfrac{1}{6} m(3r^2 + h^2)\) \(I_{yy} = mr^2\) |
Medio Cilindro \(Volume = \dfrac{1}{2} \pi r^2h\) |
\(I_{xx} = I_{zz} = \left( \dfrac{1}{4} - \dfrac{16}{9 \pi^2} \right) mr^2 + \dfrac{1}{12} mh^2\) \(I_{yy} = \left( \dfrac{1}{2} - \dfrac{16}{9 \pi^2} \right) mr^2\) \(I_{xx'} = I_{zz'} = \dfrac{1}{12} m(3r^2 + h^2)\) \(I_{yy'} = \dfrac{1}{2} mr^2\) |
Esfera \(Volume = \dfrac{4}{3} \pi r^3\) |
\(I_{xx} = I_{yy} = I_{zz} = \dfrac{2}{5} mr^2\) |
Shell Esférico |
\(I_{xx} = I_{yy} = I_{zz} = \dfrac{2}{3} m r^2\) |
Hemisferio \(Volume = \dfrac{2}{3} \pi r^3\) |
\(I_{xx} = I_{zz} = \dfrac{83}{320} mr^2\) \(I_{yy} = \dfrac{2}{5} mr^2\) \(I_{xx'} = I_{zz'} = \dfrac{2}{5} mr^2\) |
Concha hemisférica |
\(I_{xx} = I_{zz} = \dfrac{5}{12} mr^2\) \(I_{yy} = \dfrac{2}{3} mr^2\) \(I_{xx'} = I_{zz'} = \dfrac{2}{3} mr^2\) |
Cono Circular Derecho \(Volume = \dfrac{1}{3} \pi r^2 h\) |
\(I_{xx} = I_{zz} = \dfrac{3}{80} m(4r^2 + h^2) \) \(I_{yy} = \dfrac{3}{10} mr^2\) \(I_{xx'} = I_{zz'} = \dfrac{1}{20} m(3r^2 + 2h^2) \) |