DYNM08006 2020 Engineering Dynamics

Demonstrate an understanding of the relationships between displacement, velocity and acceleration applied to linear and rotational systems.

Analyse problems involving conservation of momentum and conservation of energy.

Apply graphical methods to analyse mechanisms.

Analyse rotational systems, and recognise the importance of balancing rotating machinery and solve balancing problems

Analyse the motion and forces within a variety of vibrating systems.

Determine the torque for accelerating gear trains.

This module will be taught with theory classes backed up by practical laboratory experiments. 

The students will learn from doing and the theory behind it to gain a fuller understanding of the topics being covered. 

Reports will be written for the laboratory experiments where the students will have to make sound conclusions based on their experimental results. This will account for 30% of the module marks. 

The other 70% will be based on a terminal exam.

Students who do not achieve a pass mark will have to repeat any failed element, but if they have achieved 40% in ant element, they wil not have to repeat that element. 

1.      General kinematics: differential relationships, variable acceleration, projectile motion with air resistance.

 2.      Rotational system: torque and angular acceleration, moment of inertia for standard shapes and composite shapes, parallel and perpendicular axis theorems, kinetic energy due to rotation, drum/mass system, simultaneous rotation and translation.

3.      Energy Methods: work, energy, conservation of energy.

4.      Mechanisms: mechanism examples, relative motion, velocity and acceleration diagrams, torque, power.

5.      Vibrations: simple harmonic motion: free vibration; spring/mass system, pendulum, rotational system, stiffnesses in series and parallel: damped free vibration; logarithmic decrement: undamped forced vibration; harmonic force applied to mass, harmonic displacement applied to support: damped forced vibrations; transverse vibrations.

6.      Dynamic balancing: masses in single plane, masses in several transverse planes, reciprocating mass, slider/crank mechanism, accelerometer.

7.      Gear trains: torque required for acceleration of gear train, optimum gear ratio, epicyclic gears.

8.      Gyroscopic motion: angular momentum, gyroscopic torque, reactions at bearings.

9.      Computer software: Modelling with working model and excel, (for example, projectile motion, mechanisms, vibrations).