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Introduction to Rigid Body Kinematics: Conceptual Overview

Explore the fundamental concepts of kinematics for rigid bodies, distinguishing between particles and rigid bodies, planar and spatial motions, and various types of planar motions. Learn about translation, rotation, and general plane motions. Understand the scientific definitions behind these movements and how they apply to rigid body systems.

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Introduction to Rigid Body Kinematics: Conceptual Overview

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  1. Kinematics of a Rigid Body: Basic Concepts • Particle vs. Rigid body • Planar motion vs. Spatial motion • Type of planar motions ME 316 Handout 1

  2. A Particle: A & B have the same motion B A B Review: Planar Kinematics of a Rigid Body 1. Particle Versus Rigid Body Rigid body: A and B may have different motions ME 316 Handout 1

  3. Example 1 2. Planar motion vs. Spatial motion ME 316 Handout 1

  4. Example 2 ME 316 Handout 1

  5. Spatial motion - Example ME 316 Handout 1

  6. 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

  7. 3. Types of planar motion Translation ME 316 Handout 1

  8. 3. Types of planar motion Rotation at a fixed axis Planar general motion ME 316 Handout 1

  9. 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

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