Moment of inertia of triangle about tip formula

Thread starter RussellJ
Start date May 22, 2009
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Formula Inertia Moment Moment of inertia Triangle

AI Thread Summary

The discussion centers on calculating the moment of inertia for a four-blade propeller, with the blades assumed to be triangular in shape. The user sought a formula for the mass moment of inertia about the tip of each triangular blade but found existing resources insufficient. Ultimately, the user decided to perform the integral calculation despite initially wanting to avoid it. The conversation highlights the challenges of finding specific formulas for geometric shapes in engineering applications. The thread concludes with the user acknowledging the need to resort to integration for a solution.

May 22, 2009

RussellJ

Homework Statement

Calculate the moment of inertia of a 4 blade propeller

Homework Equations

The Attempt at a Solution

I am assuming the propeller blades to be triangles and need a formula for the mass moment of inertia about the tip of each triangular blade. Google hasn't helped thus far. Integration isn't necessary.

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May 22, 2009

RussellJ

Case closed. I sucked it up and did the integral.

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