Engineering

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ECMM140 - Vibration Engineering (2015)

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MODULE TITLEVibration Engineering CREDIT VALUE15
MODULE CODEECMM140 MODULE CONVENERDr 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 33.00 Guided Independent Study 117.00 Placement / Study Abroad 0.00
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 Search
Set Smith JW Vibration of Structures: applications in civil engineerign design London, Chapman and Hall 1988 [Library]
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 [Library]
Set Inman, DJ Engineering Vibration 2nd Prentice-Hall 2001 013726142x [Library]
Set Chopra A Earthquake dynamics of Structures, a Primer Earthquake Engineering Research Institute 2005 1932884076 [Library]
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 22 January 2014 LAST REVISION DATE Thursday 19 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