PROBLEM 9.195 Determine the mass moment of inertia of the 0.9-lb machine component shown with respect to the axis AA′. SOLUTION First note that the given shape can be formed adding a small cone to a cylinder and then removing a larger cone as indicated. Now 2.4or 1.2 in.0.41.2hhh+==The weight of the body is given by ()()123123Wmgg mmmg VVVρ==+−=+−or () ()() ()() ()3222231 ft0.9 lb32.2 ft/s0.82.40.21.20.63.6in3312 in.ππρπ=×+−×()23332.2 ft/s2.792530.029090.7854010ftρ−=×+−×or 2413.7266 lb s/ftρ=⋅Then ()()32113.72662.79253100.038332 lbs /ftm−=×=⋅()()32213.72660.02909100.000399 lb s/ftm−=×
This is the end of the preview.
access the rest of the document.