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ENGINEERING TRIPOS PART IIA - 2012/2013
Leader: Prof D. Cebon email: dc
Project Type: Standard
Project Category: Design
Prerequisites: 3C5 & 3C6 essential
Timing: Thursdays 11-1pm, Mondays 9-11am, plus afternoons
This project will involve modelling the vibration response of a mechanical system employing different levels of approximation, ranging from simple analytical calculations and one-degree-of-freedom models to comprehensive finite element descriptions of the response. Students will measure the response of various vibrating systems in the laboratory and will compare the experimental measurements with predicted responses.
Students work individually, but coordinate results within groups of three.
Week 1: Collect experimental data and do simple hand-calculations of natural frequencies. Introduction to Matlab. Write first interim report.
Week 2: Preliminary exercises. All students do two 'guided' exercises individually, to calculate vibration frequencies and mode shapes of a simple beam, using: (i) the dynamic stiffness method and (ii) the FE method with Patran. Write second interim report.
Weeks 3 & 4: Develop and implement detailed models. Each student will implement a detailed model of the laboratory component, using either: (i) lumped parameter model (Matlab), (ii) dynamic stiffness method (Matlab), (iii) FE method. Final report comparing the results of all three methods with experimental results.
Three mini-lectures will be presented, covering:
Calculation Methods to be Employed
Format: Submission Date - Marks
Interim report 1: Thursday 16 May 2013 - 15 marks
Interim report 2: Thursday 23 May 2013 - 15 marks
Final report: 4pm Thursday 6 June 2013 - 50 marks
Last updated: November 2012