Inlämning av Examensarbete / Submission of Thesis

Sandeep Shetty; Chukwudi Anthony Okeke ISRN:BTH-AMT-EX--2007/D-04--SE, pp. 50. TEK/avd. för maskinteknik, 2007.

The work

Författare / Author: Sandeep Shetty, Chukwudi Anthony Okeke
Titel / Title: Goal Oriented Estimation of Errors due to Modal Reduction in Dynamics
Översatt titel / Translated title: Goal Oriented Estimation of Errors due to Modal Reduction in Dynamics
Abstrakt Abstract:

The aim of this thesis is the estimation of errors due to reduction in modal superposition method. Mode superposition methods are used to calculate the dynamic response of linear systems. In modal superposition method, it becomes unnecessary to consider all the modes of a particular system. In generally only a few number of modes contribute significantly to the solution. The main aim of the study is to identify the significant modes required for good approximation. Finally, this study constitutes a basis for developing an adaptive method, choosing the minimum number of modes required for certain accuracy. Procedure for evaluating errors is presented and numerical examples illustrate the behavior of the method in the context of forced harmonic response. Finite element modeling and simulation was carried out using MATLAB.

Ämnesord / Subject: Maskinteknik - Mechanical Engineering\Structural Dynamics
Maskinteknik - Mechanical Engineering\Structural Mechanics
Nyckelord / Keywords: Dynamic response, Mode superposition, Harmonic loads, Cantilever beam, Number of modes, Displacements, Stresses, Error estimation, Error contribution

Publication info

Dokument id / Document id:
Program:/ Programme Masters programme in Mechanical Engineering, 60 points
Registreringsdatum / Date of registration: 06/05/2007
Uppsatstyp / Type of thesis: D-Uppsats/Magister/Master


Handledare / Supervisor: Prof. Kenneth Runnesson, Chalmers
Examinator / Examiner: Ansel Berghuvud
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: TEK/avd. för maskinteknik
S-371 41 Karlskrona
+46 455 38 50 00
I samarbete med / In co-operation with: Chalmers

Files & Access

Bifogad uppsats fil(er) / Files attached: bth_amt_ex_2007d04_se.pdf (882 kB, öppnas i nytt fönster)