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Choi-Wiliams time frequency analysis of a three degree freedom non-linear system
(Katholieke Universiteit Leuven, 2006)
The response of a non-linear mechanical oscillator, depending on the type of non-linearity, to an excitation of particular harmonic might contain sub- and super-harmonics, transients and chaotic components. The conventional ...
Wavelet transform modulus maxima decay lines: Damage detection in varying operating conditions
(IGI Global, 2015)
An important task in structural health monitoring (SHM) is that of damage detection under varying environmental and operational conditions. Structures, under varying environmental conditions, change their mass, elasticity ...
Identification of hysteretic systems using the differential evolution algorithm
(Affiliation: Dept. of Mechanichal Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, United KingdomCorrespondence Address: Kyprianou, A.Dept. of Mechanichal Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdomemail: Mep96Gak@sheffield.ac.uk, 1998)
In system identification, it is well-known that any non-linear in the parameters system, possesses a complicated error surface with many local minima. In this case the conventional algorithms, such as those based on least ...
Minimum relative entropy criterion for damage detection and location
(Affiliation: Brunel University, School of Engineering and Design, United KingdomAffiliation: University of Cyprus, Department of Mechanical and Manufacturing Engineering, CyprusCorrespondence Address: Mares, C.Brunel University, School of Engineering and DesignUnited Kingdomemail: Cristinel.Mares@brunel.ac.uk, 2009)
Relative entropy has been employed, as an alternative to other regularization methods, in solving ill-conditioned linear inverse problems. Damage detection when treated as structural modification imparted by the damage ...
Estimation of rotational frequency responses
(2003)
Rotational frequency response functions are potentially valuable for structural damage detection but are difficult to obtain because of the practical problems of applying a pure moment. In the literature various indirect ...
Modelling and Simulation of Bolted Joints under Harmonic Excitation
(2003)
Bolted metal joints under harmonic loading exhibit hysteretic behaviour. This is the major source of damping in frame structures with bolted joints, since the material damping of these structures is very small. In this ...