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Planar Kinematics of a Rigid Body: Review I 1. Particle vs. Rigid body 2. Planar motion vs. Spatial motion 3. Type of planar motion ME 316 Handout 1 1 Review: Planar Kinematics of a Rigid Body 1. Particle Versus Rigid Body A Particle: A & B have the same motion B A Rigid body: A and B may have different motions B ME 316 Handout 1 2 2. Planar motion vs. Spatial motion Example 1 ME 316 Handout 1 3 Example 2 ME 316 Handout 1 4 Spatial motion - Example ME 316 Handout 1 5 Planar motion – Scientific Definition All particles of a rigid body move along paths which are equidistant from a fixed plane, the body is said to undergo planar motion A body system consists of several rigid bodies. When all rigid bodies undergo planar motion, the system is said to undergo planar motion ME 316 Handout 1 6 3. Types of planar motion Translation ME 316 Handout 1 7 3. Types of planar motion Rotation at a fixed axis Planar general motion ME 316 Handout 1 8 Types of planar motion – Scientific definition Translation: every line segment on the body remains parallel to its original direction during the motion Rotation about a fixed axis: all the particles move along circular paths General plane motion: a combination of translation and rotation. ME 316 Handout 1 9
"Planar Kinematics of a Rigid Body"