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发布日期:2021年07月27日
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STRESSES IN ROTATING RINGS (ANNULAR DISKS)

Stresses in Rotating Rings Calculator was developed to calculate radial / tangential stresses (inertia stresses), the change of the inner and outer radiuses of a ring which rotates about its own axis with a uniform angular velocity. The calculator is valid for homogeneous annular disk of uniform thickness. It has been assumed that the effect of deformation could be ignored and the rotating ring is rigid. Rotating elements, such as flywheels and blowers, can be simplified as a rotating ring and stress calculation can be done.The formulas used for stress calculations are given in the List of Equations section.

If there are radial pressures or pulls distributed uniformly along either the inner or outer perimeter of the disk, these stresses shall be superimposed upon the inertia stresses calculated here. Stresses, moments, and shears due to balanced forces (including gravity) shall also be superimposed upon calculated values in here.

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Rotating Disk Stress Calculator:

Stresses in Rotating Disks
 INPUT PARAMETERS
Parameter Value
Rotation speed [w] rpm
Shaft outer radius [R]
Shaft inner radius [R0] 皇带鱼图片最新章节目录_皇带鱼图片无弹窗 皇带鱼图片最新章节目录_皇带鱼图片无弹窗 ,巨乳学院最新章节_巨乳学院无弹窗全文阅读 巨乳学院最新章节_巨乳学院无弹窗全文阅读 ,医龙2最新章节列表_医龙2最新章节目录 医龙2最新章节列表_医龙2最新章节目录
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Density [p]
Poisson's Ratio [ν] ---
Elastic Modulus  [E]

Note: Use dot "." as decimal separator.


 RESULTS
Parameter Value
Radial Tensile Stress  (at any point with a distance r from the center) [σr] ---
Tangential Tensile Stress (at any point with a distance r from the center) [σt] ---
Maximum Radial Stress [(σr)max] ---
Maximum Tangential Stress [(σt)max] ---
Dimensional Change in the Outer Radius [∆R] ---
Dimensional Change in the Inner Radius [∆R0] ---



List of Equations:

Equation
Radial tensile inertia stress [σr]
$${ \sigma }_{ r }=\frac { 3+\upsilon }{ 8 } \cdot \rho \cdot { w }^{ 2 }\cdot ({ R }^{ 2 }+{ R }_{ 0 }^{ 2 }-\frac { { R }^{ 2 }{ R }_{ 0 }^{ 2 } }{ { r }^{ 2 } } -{ r }^{ 2 })$$
Tangential tensile inertia stress [σt]
$${ \sigma }_{ t }=\frac { \rho \cdot { w }^{ 2 } }{ 8 } \cdot \left[ (3+\upsilon )\cdot ({ R }^{ 2 }+{ R }_{ 0 }^{ 2 }+\frac { { R }^{ 2 }{ R }_{ 0 }^{ 2 } }{ { r }^{ 2 } } )-(1+3\upsilon )\cdot { r }^{ 2 } \right] $$
Maximum radial stress [(σr)max]
$${ { (\sigma }_{ r }) }_{ max }=\frac { 3+\upsilon }{ 8 } \cdot \rho \cdot { w }^{ 2 }\cdot { (R-{ R }_{ 0 }) }^{ 2 }$$
Maximum tangential stress [(σt)max]
$${ { (\sigma }_{ t }) }_{ max }=\frac { \rho \cdot { \omega }^{ 2 } }{ 4 } \cdot \left[ (3+\upsilon )\cdot { R }^{ 2 }+(1-\upsilon )\cdot { R }_{ 0 }^{ 2 } \right] $$
Dimensional change in the outer radius [∆R]
$$\Delta R=\frac { \rho \cdot { \omega }^{ 2 }\cdot R }{ 4\cdot E } \cdot \left[ (1-\upsilon )\cdot { R }^{ 2 }+(3+\upsilon )\cdot { R }_{ 0 }^{ 2 } \right] $$
Dimensional change in the inner radius [∆R0]
$${ \Delta R }_{ 0 }=\frac { \rho \cdot { \omega }^{ 2 }\cdot { R }_{ 0 } }{ 4\cdot E } \cdot \left[ (3+\upsilon )\cdot { R }^{ 2 }+(1-\upsilon )\cdot { R }_{ 0 }^{ 2 } \right] $$

Reference: