721_Dynamics 11ed Manual

721_Dynamics 11ed Manual - Engineering Mechanics Dynamics...

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Unformatted text preview: Engineering Mechanics - Dynamics ky = Iy Chapter 21 ky = 2.35 ft M Problem 21-9 Determine the mass moment of inertia of the homogeneous block with respect to its centroidal x' axis. The mass of the block is m. Solution: m = ρa b h ρ= m abh h ⌠2 m⎮ Ix' = abh ⎮ ⎮ ⌡− h ⎛ 1 a2 + z2⎞ a b dz = m ⎛ 1 a3 b h + 1 a b h3⎞ ⎜ ⎟ ⎜ ⎟ a b h ⎝ 12 12 ⎝ 12 ⎠ ⎠ 2 Ix' = ( m2 2 a +h 12 ) Problem 21-10 Determine the elements of the inertia tensor for the cube with respect to the x, y, z coordinate system. The mass of the cube is m. 719 ...
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

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