# Moment of Inertia Research

by airforce840
Tags: inertia, moment, research
 Sci Advisor P: 5,095 Have you thought about simply using a pendulum to calculate the moments of inertia? Take a look at the attached PDF and perhaps a bit of googling will help. The method has been around for a lot of years. I have used it a couple of times to calculate the MOI of some complicated parts. One thing as a note...if I remember correctly, the angular displacement has to be relatively small since there is a mathematical approximation involved that states that $$sin \theta = \theta$$