ECMM140 | University of Exeter

MODULE TITLE	Vibration Engineering	CREDIT VALUE	15
MODULE CODE	ECMM140	MODULE CONVENER	Dr Ki Young Koo (Coordinator)

DURATION: TERM	1	2	3
DURATION: WEEKS	3	0	0

Number of Students Taking Module (anticipated)	20

DESCRIPTION - summary of the module content

This module will provide you with basic knowledge and understanding relevant to vibration engineering of large civil engineering structures. Particular emphasis will be given to theoretical concepts of single- (SDOF) and multiple-degree-of-freedom (MDOF) systems which form foundations of general structural dynamics for dealing with wind, blast and impact engineering disciplines. The module will then focus you on specific problems of environmental vibrations affecting serviceability of structures occupied and dynamically excited by humans (floors, footbridges and grandstands) or by ground borne vibrations due to over and underground traffic, construction and blasting. Methods and tools used routinely for measuring and analysing vibration signals from these structures will be described.

AIMS - intentions of the module

To develop concepts of SDOF and MDOF systems and apply them to real life vibration serviceability problems.

INTENDED LEARNING OUTCOMES (ILOs) (see assessment section below for how ILOs will be assessed)

On successful completion of this module you should be able to:

Module Specific Skills and Knowledge

1. Perform calculation and analyse vibration response of SDOF systems.
2. Perform calculation and analyse vibration response of MDOF systems.

3. Interpret relevant codes of practice and perform vibration serviceability assessment.

Discipline Specific Skills and Knowledge

4. Demonstrate an understanding of the SDOF and MDOF concepts

5 Ability to rationalise a real life vibration serviceability problem and perform its assessment;

6. Ability to interpret vibration signals from civil structures

Personal and Key Transferable / Employment Skills and Knowledge

7. Undertake independent studies;

SYLLABUS PLAN - summary of the structure and academic content of the module

Single Degree of Freedom (SDOF) systems

Equation of motion of undamped and damped systems.
Free vibration.
Vibration under harmonic and periodic excitations.
Vibration under non-periodic and random excitation.

Multiple Degree of Freedom (MDOF) systems

Equations of motion of undamped and damped systems.
Modal analysis and mode superposition technique.
Free vibration.
Vibration under harmonic and periodic excitation.
Vibration under non-periodic and random excitation.

Experimental measurements and analysis of vibration

Characteristics and components of a measurement system
Experimental data analysis and interpretation

Vibration serviceability design

General principles and approach
Human-induced excitation
Vibration serviceability design of footbridges, floors, staircases and grandstands under human-induced excitation.

LEARNING AND TEACHING

LEARNING ACTIVITIES AND TEACHING METHODS (given in hours of study time)

Scheduled Learning & Teaching Activities	33	Guided Independent Study	117	Placement / Study Abroad	0

DETAILS OF LEARNING ACTIVITIES AND TEACHING METHODS

Category	Hours of study time	Description
Scheduled Learning & Teaching activities	22	Lectures
Scheduled Learning & Teaching activities	11	Tutorials
Guided Independent Study	117	Independent Study

ASSESSMENT

FORMATIVE ASSESSMENT - for feedback and development purposes; does not count towards module grade

Form of Assessment	Size of Assessment (e.g. duration/length)	ILOs Assessed	Feedback Method
There will be opportunities to reflect on and review work undertaken towards assessed Coursework.			Discussion within Tutorials

SUMMATIVE ASSESSMENT (% of credit)

Coursework	30	Written Exams	70	Practical Exams	0

DETAILS OF SUMMATIVE ASSESSMENT

Form of Assessment	% of Credit	Size of Assessment (e.g. duration/length)	ILOs Assessed	Feedback Method
Single Degree of Freedom Systems Exercise	10	Upto 10 Pages	1, 4	Paper marked and returned
Multiple Degree of Freedom Systems Exercise	10	Upto 10 Pages	2, 4	Paper marked and returned
Vibration Service Ability Assessment	10	Upto 10 Pages	3, 5	Paper marked and returned
Examination	70	2 hours	1 - 7	Not applicable

DETAILS OF RE-ASSESSMENT (where required by referral or deferral)

Original Form of Assessment	Form of Re-assessment	ILOs Re-assessed	Time Scale for Re-assessment
All above	Written Examination	All	August Ref/Def Examination Period

RE-ASSESSMENT NOTES

All referred/deferred assessments will be by Written Exam 100%

RESOURCES

INDICATIVE LEARNING RESOURCES - The following list is offered as an indication of the type & level of
information that you are expected to consult. Further guidance will be provided by the Module Convener

Basic reading:

ELE: http://vle.exeter.ac.uk/

Web based and Electronic Resources:

Journal papers and the most recent conferences papers.

NDOF simulator

Other Resources:

Reading list for this module:

Type	Author	Title	Edition	Publisher	Year	ISBN
Set	Smith JW	Vibration of Structures: applications in civil engineerign design		London, Chapman and Hall	1988
Set	Maia, NMM, Silva, JMM, He, J, Lieven, NAJ, Lin, RM, Skingle, GW	Theoretical and Experimental Modal Analysis		Research Studies Press Ltd. & John Wiley and Sons	1997	9073802261
Set	Inman, DJ	Engineering Vibration	2nd	Prentice-Hall	2001	013726142x
Set	Chopra A	Earthquake dynamics of Structures, a Primer Earthquake		Engineering Research Institute	2005	1932884076

CREDIT VALUE	15	ECTS VALUE	7.5

PRE-REQUISITE MODULES	ECMM149
CO-REQUISITE MODULES

NQF LEVEL (FHEQ)	7	AVAILABLE AS DISTANCE LEARNING	No
ORIGIN DATE	Wednesday 22nd January 2014	LAST REVISION DATE	Thursday 19th November 2015

KEY WORDS SEARCH	Vibration, engineering, serviceability, floor vibration, footbridge vibration, stadia vibration, dynamic testing, modal testing, accelerometer, spectrum analyser, signal analysis, spectrum, human-induced dynamic loading, human walking, human running

Vibration Engineering - entry