Dynamics of a weakly nonlinear string on an elastic foundation with a partly prescribed discrete spectrum

In this paper the dynamics of a weakly nonlinear elastic string on a Winkler elastic foundation is studied. The foundation may be spatially heterogeneous. At one end of the string a mass-spring system is attached, and the other end of the string is fixed. The string is assumed to be long, and the lower part of the spectrum of the string is...

Dynamics and buckling loads for a vibrating damped Euler–Bernoulli beam connected to an inhomogeneous foundation

In this paper, the dynamics and the buckling loads for an Euler–Bernoulli beam resting on an inhomogeneous elastic, Winkler foundation are studied. An analytical, asymptotic method is proposed to determine the stability of the Euler–Bernoulli beam for various types of inhomogeneities in the elastic foundation taking into account different...

Experimental application of FRF-based model updating approach to estimate soil mass and stiffness mobilised under pile impact tests

The dynamic response of structures in contact with soil is receiving increasing interest and there is a growing need for more accurate models capable of simulating the behaviour of these systems. This is particularly important in the field of offshore wind turbines, where accurate estimates of system frequency are needed to avoid resonance, and...

An iterative method to infer distributed mass and stiffness profiles for use in reference dynamic beam-Winkler models of foundation piles from frequency response functions

Accurate characterisation of soil behaviour in Dynamic-Soil-Structure Interaction (DSSI) applications remains a significant challenge. Knowledge of the operational soil-structure interaction stiffness is important for applications ranging from earthquake engineering to offshore structures subjected to wind and wave loading. A number of...

Dimensionering van asfaltbekledingen op golfbelasting: Toetsing rekenmethode van de leidraad asfalt

In het kader van werkgroep 4 'Dijkbekledingen' van de Technische Adviescommissie voor de Waterkeringen (TAW) is in het verleden een onderzoek gestart naar het gedrag van gesloten asfaltbekledingen onder invloed van verschillende belastingen (golfklappen, overdruk onder de bekleding) en bij verschillende randvoorwaarden. Dit onderzoek heeft zich...