Dynamics

Learning Outcomes

Disciplinary Specific Learning Outcomes

Having successfully completed this module you will be able to:

• Discuss the motion of rockets and jet-propelled vehicles
• Analyse both free and forced vibrations of single degree of freedom systems
• Predict the effectiveness of a vibration isolator given single degree of freedom assumptions
• Discuss the motion of rockets and jet-propelled vehicles
• Develop particle and rigid body trajectory equations
• Interpret, process and appropriately plot vibration based transfer functions

Knowledge and Understanding

Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:

• The fundamental concepts of kinetics of systems of particles
• The trade-off between high and low stiffness/damping for vibration isolation
• Conservation of energy and momentum
• Vibration based transfer functions, how they are inter-related and portrayed graphically
• Steady-state vibration analysis of a single degree of freedom mechanical system subjected to harmonic forces and base motion.
• Plane kinematics and kinetics of rigid bodies
• The fundamental concepts of kinematics and kinetics of particles
• The fundamental assumptions of lumped parameter mass, stiffness and damper models
• Free vibrations of a single degree of freedom mechanical system
• Three-dimensional dynamics of rigid bodies
• Rockets and jet propulsion

Dynamics-1 (D1)

• Particle Dynamics: Newton's Laws, particle motion for constant and variable force
• Work, Energy and Momentum: Work done by Force, Kinetic and Potential Energy
• Energy Conservation, Friction, Linear Momentum & Impulse, Simple Rotating Bodies
• Relative motion equation, Relative motion Diagrams
• System of Particles: Centre of Mass, Centre of Mass of a vehicle, Equivalent Particle
• Rocket and Jet Propulsion
• Dynamics of Rigid Bodies: Rotation of rigid body about a fixed axis
• Angular Momentum & its conservation, Moments of inertia, Inertia Matrix

Dynamics-2 (D2)

• The fundamental assumptions of lumped parameter mechanical systems, and concepts of equivalent mass, stiffness and damping
• Free vibration analysis of a single degree of freedom mechanical system
• Steady state forced vibration analysis of a single degree of freedom mechanical system
• Definition of the Frequency Response Function (FRF)
• Converting between different types of FRF and ways of plotting and interpreting them (including dB)
• Mass, stiffness and damping controlled behaviour
• Dynamics of a loudspeaker Vibration isolation: force and motion transmissibility

Teaching and learning methods

Teaching methods include lectures, group tutorials and laboratory sessions. The laboratory concerns the measurement of transfer functions of a loudspeaker and the dynamic effects of structural modification.

Learning activities include self-study and the solution of example problems both in a supervised environment and in your own time.

Summative

This is how we’ll formally assess what you have learned in this module.

Referral

This is how we’ll assess you if you don’t meet the criteria to pass this module.

Repeat

An internal repeat is where you take all of your modules again, including any you passed. An external repeat is where you only re-take the modules you failed.

Repeat Information

Repeat type: Internal & External