Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"statistical energy analysis"”.
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Vibration localization and statistical energy analysis in coupled systems
… parameter is conducted on coupled systems. The analysis of a coupled pendulums system results in the analytical expression of the natural frequencies of the system. The response of the system for harmonic excitation and random input is developed. Two single Euler-Bemouilli beams coupled by a …
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Statistical response predictions in complex systems with dissipation
… are examined for the purpose of improving statistical response predictions such as those formulated in statistical energy analysis and statistical room acoustics. Both the statistical distribution of modal decay rates and the effect of dissipation on the intermodal correlations of natural …
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Structural evaluation of fixed offshore platforms
… extensively studied; the dynamic measurement and analysis techniques are described. A parallel computer model of this tower was used to simulate the effect of removal of structural members on natural frequency. The parameters which determine the level of minimum detectable damage are discussed. …
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Radiated Noise Assessment of Shipboard Systems Using Vibration Analysis
… in complex systems - Finite Element Analysis and Statistical Energy Analysis. Those methods were implemented on a simple metal cabinet with limited success—however, a frequency-gain model constructed using a set of planned experiments, performed with reasonable accuracy. Later on, the …
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Toward a theory of diffuse energy transport in large irregular structures
"We develop a ""concatenation ansatz"" of energy flow in large, complex structures to predict the response of a nominally diffusive system. The concatenation ansatz is inspired by statistical energy analysis (SEA) which is, in turn, based on an analogy to diffusive heat transfer. Where in heat …
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Investigating the feasibility of using dynamic stiffness beam functions in a hybrid structure-borne noise prediction model
… systems. A review of the mechanisms through whichenergy is generated from train sources and propagates into buildings, as well as a review of the existing empirical and theoretical models for the prediction of structure-bornenoise in buildings has been undertaken. A proposal for the simplification …
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Statistical Vibro-Acoustic Modelling of Nonlinear Systems with Applications in Vehicles
… efficient vibro-acoustic models to predict the statistical structural-acoustic response of a system to random inputs, as well as analysing the degree of dependency of the response to nonlinear behaviour in the interface between the excitation and the structure. Key aspects of the impact that a …
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Vibro-acoustic dynamics in the presence of uncertainty and nonlinearity
… using a combination of deterministic and statistical approaches that are well suited to each regime. The Hybrid FE-SEA method combines the most prevalent of these respective techniques, namely the Finite Element (FE) method and Statistical Energy Analysis (SEA). This partitions the system …
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The calculation of noise from railway bridges and viaducts
… an analytical model of the track is coupled to a statistical energy analysis (SEA) model of the bridge. This approach forms a suitable basis from which to develop a better model here by concentrating on its weaknesses. <br/>A mid-frequency calculation for the power input to the bridge via a …