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Frequency Response ...
Frequency Response Calculations of a Nonlinear Structure a Comparison of Numerical Methods
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- Chen, Yousheng, 1985- (author)
- Linnéuniversitetet,Institutionen för maskinteknik (MT),Maskinteknik
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- Linderholt, Andreas, 1968- (author)
- Linnéuniversitetet,Institutionen för maskinteknik (MT),Maskinteknik
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- Abrahamsson, Thomas, 1956 (author)
- Chalmers University of Technology, Sweden,Strukturdynamik,Chalmers tekniska högskola
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(creator_code:org_t)
- ISBN 9783319045214
- 2014-03-11
- 2014
- English.
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In: Nonlinear Dynamics, Volume 2. - Cham : Springer. - 9783319045221 - 9783319045221 ; 2, s. 35-44
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http://dx.doi.org/10...
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Abstract
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- Mechanical systems having presence of nonlinearities are often represented by nonlinear ordinary differential 5 equations. For most of such equations, exact analytic solutions are not found; thus numerical techniques have to be used. 6 In many applications, among which model calibration can be one, steady-state frequency response functions are the desired 7 quantities to calculate. 8 The objective of this paper is to compare the performance of computations of nonlinear frequency response functions 9 (FRFs) calculated directly within the frequency domain, using the Multi-Harmonic Balance method, with the time-domain 10 methods Runge–Kutta, Newmark and Pseudo Force in State Space (PFSS). The PFSS method is a recently developed state- 11 space based force feedback method that is shown to give efficient solutions. 12 The accuracy and efficiency of the methods are studied and compared using a model of a cantilever beam connected to a 13 non-linear spring at its free end.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Keyword
- Numerical methods
- simulation
- Nonlinear
- Structural Dynamics
- Harmonic Balancing
- State Space
- Maskinteknik
- Mechanical Engineering
Publication and Content Type
- ref (subject category)
- kon (subject category)
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