The first aim of this subject is to describe and analyse vibrations and their role in mechanical systems. The second aim of the module is to provide the student with an in-depth knowledge of engineering materials. It also aims to provide the student with further understanding of the relationship between materials microstructure and associated material properties. The concept of fracture toughness and designing against catastrophic failure using fracture mechanics is introduced. This is achieved through lectures in materials science and engineering.
Free Vibration: Introduction, Simple Harmonic, Undamped Free Vibration
Damped Vibration: Damped Vibration – single degree of freedom, Viscous Damping & Coulomb Damping & Log Decrement
Whirling of Shafts: Theory, Deflection at speeds other than critical.
Balancing of Rotating forces: Static balance, dynamic balance, forces on bearings caused by imbalance.
Equilibrium & Non-Equilibrium Phase Diagrams: Lever rule. Eutectic & eutectoid systems. Solid solution strengthening: relationship between strength & microstructure, non-equilibrium solidification, segregation. Heat treatment of carbon steels, cooling curves, hardenability
Failure Mechanisms - Creep, Fatigue & Basic Fracture Mechanics: Solve basic Creep, Fatigue & Catastrophic Failure design problems, using creep curves, Larson-Miller parameter, power law, Miner's Rule, Goodman, Soderburg, & Gerber Methods.
