Registry

Module Specifications

Current Academic Year 2012 - 2013
Please note that this information is subject to change.

Module Title	Mechanics of Machines 2
Module Code	MM306
School	School of Mechanical and Manufacturing Engineering
Online Module Resources
Module Co-ordinator	Semester 1: Paul Young Semester 2: Paul Young Autumn: Paul Young
Module Teacher	Paul Young
NFQ level	8	Credit Rating	5
Pre-requisite	None
Co-requisite	None
Compatibles	None
Incompatibles	None

Description

To build on Mechanics of Machines 1 by addingPower transmission: gears, belts, clutches.Balancing of shaftsGyroscopic motionDynamics (vibration) of mechanical systems in free, forced and damped modesMeasurement of properties of dynamic systems

Learning Outcomes

1. Analyse and design power transmissions using gears, clutches and belts.
2. Balance shafts statically and dynamically using vector calculus
3. Calculate the natural frequency, damped frequency of single degree of freedom systems
4. Design a vibration isolation system and calculate the response to input forces
5. Undertake laboratory practicals and report scientifically on them in reports and poster form

Workload	Full-time hours per semester
*Type*	*Hours*	*Description*
Laboratory	12	In the lab
Tutorial	12	No Description
Lecture	24	No Description
Laboratory	12	Reports
Assignment	6	Poster
Independent learning	70	Tutorial questions & revision
Total Workload: 136

All module information is indicative and subject to change. For further information,students are advised to refer to the University's Marks and Standards and Programme Specific Regulations at: http://www.dcu.ie/registry/examinations/index.shtml

Indicative Content and Learning Activities

Simple and Compound Gears.
Direct power transmission, gear ratios, design, module, tooth profile..

Belt Drives.
Analysis of interaction between belt and pulley to determine governing equation for slippage. Geometry of system, gear ration and maximum power transmission..

Clutches.
Torque at slip analysis for uniform pressure and constant wear rate. Use of multi-plate clutches. Design for power transmission in a gear train..

Balancing of shafts.
Vector analysis of static and dynamic balancing of rotating shafts.

Gyroscopic motion.
3-D kinetics, calculation the gyroscopic couple under precession of the spin axis..

Free Vibration of SDOF.
Equations of motion, undamped, viscous damping, dry friction damping & hysteretic damping.

Forced vibration of SDOF system.
Sinusoidal Excitation on mass, excitation of base, harmonic excitation..

Assessment Breakdown
Continuous Assessment	20%	Examination Weight	80%

Course Work Breakdown
Type	Description	% of total	Assessment Date
Laboratory	3 practical reports	15%	Other
Poster presentation	Poster to assist others in practicals	5%	Sem 1 End

Reassessment Requirement
Resit arrangements are explained by the following categories; 1 = A resit is available for all components of the module 2 = No resit is available for 100% continuous assessment module 3 = No resit is available for the continuous assessment component
This module is category 1

Indicative Reading List

C.F. Beards: 1995, Beards CF., Engineering Vibration Analysis with Application to Control Systems, Arnold, 034063183X
GH Ryder, MD Bennett: 1990, Mechanics of Machines, 2, Industrial Press, Inc., 083113030X
Daniel J. Inman: 0, Engineering vibration, Pearson, Upper Saddle River, N.J., 0132281732
J. Hannah, R. C. Stephens: 1984, Mechanics of machines, Edward Arnold, London, 0713134712

Other Resources

None

Array

Programme or List of Programmes

BMED

B.Eng. in Biomedical Engineering

BSSA

Study Abroad (DCU Business School)

BSSAO

Study Abroad (DCU Business School)

CAM

B.Eng. Mechanical & Manufacturing Eng