ME 3133 Chapter : Lect 18 RB Motion Instant CentersBLANKS
Document Summary
Assignments: continue reading rigid body kinematics. Meriam & kraige: chp 5. 6 - 5. 7 (important to read ahead & maybe practice a few of the intro acceleration problems: practice problems 5. 104, 5. 107, 5. 115, [5. 119] Planar kinematics of rigid bodies : review general motion: Relative velocity & velocity polygons: instant centers (velocity, example problem(s) Review: general planar motion of rigid bodies relative velocities: any & all planar rigid body motion can be described as: Translation of any one point (a) plus. Rotation about that point: use of relative motion. Two distinct points (a & b) on a single rigid body. Relative velocity of any two distinct points (a & b) on the same rigid body must be perpendicular to the straight line connecting the two (i. e. v. Path of b/a is circular as witnessed by observer riding (translating) with a (& vice-versa)! vb va. At any instant, @ point of contact => If p2 on the ground v v.
