迹字石油化工大學⊙ D Where the errors act the center of stiffness a body behaves as if all its mass in concentrated at its center of mass a body supported by bearings, behaves as if all the bearings are concentrated at the center of stiffness The point at which when a force is applied to a locked-in-place axis, no angular motion of the structure occurs It is also the point about which angular motion occurs when forces are applied elsewhere on the body Found using a center-of-mass type of calculation(K is substituted for M) ◆K: ◆D.Where the Errors Act: The Center of Stiffness • A body behaves as if all its mass in concentrated at its center of mass • A body supported by bearings, behaves as if all the bearings are concentrated at the center of stiffness – The point at which when a force is applied to a locked-in-place axis, no angular motion of the structure occurs – It is also the point about which angular motion occurs when forces are applied elsewhere on the body – Found using a center-of-mass type of calculation (K is substituted for M)