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| Wind Turbine Blade FSI (Part 2) - Panel |
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| Wind Turbine Blade FSI (Part 2) - Panel |
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Pre-Analysis & Start-Up
Pre-Analysis
Root Radial Force
The radial force is the outward force that comes from a spinning mass. It is equal and opposite to the reaction force at the root of the blade that keeps the blade connected to the hub. It can also be thought of as the mass times the radial acceleration.
You might remember from your Dynamics course that radial acceleration is equal to,
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{latex}
$$a_r=\ddot{r}-r {\dot{\theta}}^2$$
{latex} |
Here,
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{latex}
$$\ddot{r} $$
{latex} |
is 0 because the radius is constant (i.e the blade is fixed in the radial direction)The radial force is simply equal to,
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{latex}
$$F_r = m a_r$$
{latex} |
Substituting the radial acceleration and expressing angular velocity as
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{latex}
$\omega$
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we get: Wiki Markup |
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{latex}
$$F_r = m r \omega^2$$
{latex} |
2. Simple Bending Moment Calculation
Start-Up
Please follow along to start Part 2 of this project! We will start by defining the material for the blade.
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<iframe width="640" height="360" src="//www.youtube.com/embed/P1B_hEW0pZI" frameborder="0" allowfullscreen></iframe> |
Summary of steps in the above video:
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This module is from our free online simulations course at edX.org (sign up here). The edX interface provides a better user experience and the content has been updated since it was first recorded, so we recommend that you go through the module there rather than here. Also, you will be able to see answers to the questions embedded in the module there |
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Go to Step 2: Geometry
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