Rigid Body Dynamics

Rigid Body Dynamics

Industry relevance

Be it systems / mechanisms / components, when subjected to dynamic loads, develop acceleration and velocities and hence stresses. These have to be computed. to ensure the fundamental parameters such durability (fatigue life), reliability, controllability, observability and performance. The first step is to idealize the component to be rigid and derive all the dynamic loads seen by it and via load path loads seen by other components in the assembly.

Example: Loads on a rigid rotor and hence on bearings

Learning outcomes
Treated with calculus, vector algebra and vector differentiation
  •   Appreciation for kinematics: Translation, rotation, angular acceleration, curvilinear motion and general rotation (Rotating reference axes)
  •   Detailed appreciation for mass moment of inertia and applications
  •   Detailed application of momentum and energy principles.
  •   Detailed understanding of gyroscopic motion and Coriolis force
  •   Appreciation for Dynamic unbalance and unbalance couple
  •   Ability to apply Newton’s II law and sketch FBD’s for moderately complex situations

Course Content - Delivered Via Bloom’s Taxonomy

Module Introduction

  • Introduction


  • Scalars and Vectors
    • Objective assessment (Fact Check)


  • Newton’s laws of motion
    • Objective assessment (Fact Check)
  • Energy and work done
    • Objective assessment (Fact Check)
  • Equation of motion
    • Objective assessment (Fact Check)
  • Mass moment of inertia
    • Objective assessment (Fact Check)
  • Gyroscopic moment
    • Objective assessment (Fact Check)
  • Pure rolling
    • Objective assessment (Fact Check)
  • Rolling friction
    • Objective assessment (Fact Check)
  • Rolling on an inclined plane
    • Objective assessment (Fact Check)

Gamified Assessments

  • 4 Interactive Situations


  • Situation 1 – Projectile analysis
  • Situation 2 – Mass moment of inertia of a cuboid
  • Situation 3 – Coriolis force of a vehicle travelling in equator
    • Objective assessment (Fact Check)


  • Case study – Roller rolling down an inclination
    • Objective assessment (Fact Check)


  • Case study – Gas flow across a typical spool
    • Objective assessment (Fact Check)


  • Situation – Motor power a gear train
    • Objective assessment (Fact Check)

Detailed Mock Interview Situations

  • 7 Fully solved Mock interview situations relevant to Aero and Auto Industries

Summative Assessment

  • Summative Assessment

Course Features
Lectures : 32
Quizzes : yes
Language : English
Assessments : yes
Certificate of Completion : yes
Total time : 02: 30: 42
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