Module overview
The module provides an overview of relevant topics in mechanical power transmission and methodology of vibration analysis for such mechanical assemblies. The main objective of the module is to learn methods of analysis and design of machines and their components, which are relevant to most industrial applications, including Automotive, Marine and Power Engineering transmissions.
This module is taught together with ELEC3216 Mechanical Power Transmission and Vibration. ELEC6257 has higher requirements on the desired learning outcomes, which will be assessed by a different coursework assignment.
This module is taught together with ELEC3216 Mechanical Power Transmission and Vibration. The two modules are mutually exclusive and you may not take both modules.
Aims and Objectives
Learning Outcomes
Knowledge and Understanding
Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:
- Mathematical techniques for the analysis of torsional vibration of drive systems and of flexible rotors
- The key technological issues in mechanical power transmission
Subject Specific Intellectual and Research Skills
Having successfully completed this module you will be able to:
- Evaluate demand and supply characteristics of electric drives and generators and design of the matching electric circuits
- Calculate natural vibrational frequencies and predict torsional vibration of drive systems
- Investigate a balance between power supply and demand and design an appropriate power transmission mechanism
Transferable and Generic Skills
Having successfully completed this module you will be able to:
- Implement methodology to tackle multidisciplinary problems as encountered in real engineering systems
Syllabus
- Matching power converters to their loads.
- Gear trains: simple, compound, epicyclic and differential gears, gear tooth profiles, split-power drives, power flows.
Automotive and marine applications.
- Hydrostatic drives: Hydrostatic pumps and motors, capacities and leakage coefficients, flow-controlled and valvecontrolled
systems, efficiencies and torque-speed characteristics;
comparison with electro-mechanical drives.
- Hydrokinetic drives: The fluid coupling and the torque converter, torque-speed characteristics.
- Automotive, marine and power-plant applications.
- Belts and linkage mechanisms.
- Energy storage elements and their limitations.
- Natural frequencies of composite assemblies, incorporating component sub-systems, by the use of receptances.
- Torsional vibration of drive systems which include gearing.
- Rotor dynamics of flexible rotors and the influence of their support bearings.
Learning and Teaching
Teaching and learning methods
Lectures, Tutorials, Self-Study
| Type | Hours |
|---|---|
| Preparation for scheduled sessions | 18 |
| Revision | 24 |
| Completion of assessment task | 12 |
| Practical | 4 |
| Follow-up work | 18 |
| Tutorial | 11 |
| Lecture | 33 |
| Wider reading or practice | 30 |
| Total study time | 150 |
Resources & Reading list
Textbooks
R. Holmes. The Characteristics of Mechanical Engineering and Systems. Pergamon.
C.E. Wilson, J.P. Sadler. Kinematics and Dynamics of Machinery. Pearson/Prentice Hall.
A. Esposito. Fluid Power with Applications. Pearson.
F.S. Tse, I.E. Morse, R.T. Hinkle. Mechanical vibrations : theory and applications. Alleyn and Bacon Inc.
D.J. Inman. Engineering Vibration. Prentice Hall.
S.S. Rao, Y.F. Fah. Mechanical Vibrations. Prentice Hall.
Assessment
Summative
This is how we’ll formally assess what you have learned in this module.
| Method | Percentage contribution |
|---|---|
| Examination | 85% |
| Coursework | 15% |
Referral
This is how we’ll assess you if you don’t meet the criteria to pass this module.
| Method | Percentage contribution |
|---|---|
| Examination | 100% |
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.
| Method | Percentage contribution |
|---|---|
| Examination | 100% |
Repeat Information
Repeat type: Internal & External