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ELEC6257 Mechanical Power Transmission and Vibration (MSc)

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

Module Aims

The main objective of the module is to illustrate methods of analysis and design of machines and their components relevant to most industrial applications, e.g. Automotive, Marine and Power Engineering transmissions.

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
Subject Specific Intellectual and Research Skills

Having successfully completed this module you will be able to:

  • Investigate a balance between power supply and demand and design an appropriate power transmission mechanism
  • Calculate natural vibrational frequencies and predict torsional vibration of drive systems
  • Evaluate demand and supply characteristics of electric drives and generators and design of the matching electric circuits
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

TypeHours
Practical4
Follow-up work18
Revision24
Lecture33
Preparation for scheduled sessions18
Wider reading or practice30
Tutorial11
Completion of assessment task12
Total study time150

Resources & Reading list

C.E. Wilson, J.P. Sadler. Kinematics and Dynamics of Machinery. 

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

D.J. Inman. Engineering Vibration. 

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

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

A. Esposito. Fluid Power with Applications. 

Assessment

Summative

MethodPercentage contribution
Coursework 15%
Examination  (2 hours) 85%

Repeat

MethodPercentage contribution
Examination 100%

Referral

MethodPercentage contribution
Examination 100%

Repeat Information

Repeat type: Internal & External

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