Mechanical Power Transmission and Vibration (MSc) | ELEC6257

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:

The key technological issues in mechanical power transmission
Mathematical techniques for the analysis of torsional vibration of drive systems and of flexible rotors

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

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

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

Study time
Type	Hours
Follow-up work	18
Revision	24
Preparation for scheduled sessions	18
Completion of assessment task	12
Tutorial	11
Practical	4
Lecture	33
Wider reading or practice	30
Total study time	150

Resources & Reading list

Textbooks

S.S. Rao, Y.F. Fah. Mechanical Vibrations. Prentice Hall.

D.J. Inman. Engineering Vibration. Prentice Hall.

F.S. Tse, I.E. Morse, R.T. Hinkle. Mechanical vibrations : theory and applications. Alleyn and Bacon Inc.

C.E. Wilson, J.P. Sadler. Kinematics and Dynamics of Machinery. Pearson/Prentice Hall.

R. Holmes. The Characteristics of Mechanical Engineering and Systems. Pergamon.

A. Esposito. Fluid Power with Applications. Pearson.

Assessment

Summative

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

Breakdown
Method	Percentage contribution
Continuous Assessment	15%
Final Assessment	85%

Referral

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

Breakdown
Method	Percentage contribution
Set Task	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.

Breakdown
Method	Percentage contribution
Set Task	100%

Repeat Information

Repeat type: Internal & External