### Resumé

Originalsprog | Engelsk |
---|---|

Titel | Proceedings of INTER-NOISE 2016 : 45th International Congress and Exposition on Noise Control Engineering : Towards a Quieter Future |

Redaktører | Wolfgang Kropp, Otto von Estorff, Brigitte Schulte-Fortkamp |

Antal sider | 12 |

Udgivelses sted | Hamburg |

Forlag | Deutsche Gesellschaft für Akustik, DEGA |

Publikationsdato | 2016 |

Sider | 7469-7480 |

ISBN (Elektronisk) | 978-3-939296-11-9 |

Status | Udgivet - 2016 |

Begivenhed | The 45th International Congress and Exposition on Noise Control Engineering - Hamburg, Tyskland Varighed: 21 aug. 2016 → 24 aug. 2016 Konferencens nummer: 45 |

### Konference

Konference | The 45th International Congress and Exposition on Noise Control Engineering |
---|---|

Nummer | 45 |

Land | Tyskland |

By | Hamburg |

Periode | 21/08/2016 → 24/08/2016 |

Navn | Proceedings of the International Congress on Noise Control Engineering |
---|---|

Nummer | 45 |

### Fingerprint

### Emneord

- Ground Vibration
- Finite Element Analysis
- Small Scale Testing

### Citer dette

*Proceedings of INTER-NOISE 2016: 45th International Congress and Exposition on Noise Control Engineering : Towards a Quieter Future*(s. 7469-7480). Hamburg: Deutsche Gesellschaft für Akustik, DEGA. Proceedings of the International Congress on Noise Control Engineering, Nr. 45

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*Proceedings of INTER-NOISE 2016: 45th International Congress and Exposition on Noise Control Engineering : Towards a Quieter Future.*Deutsche Gesellschaft für Akustik, DEGA, Hamburg, Proceedings of the International Congress on Noise Control Engineering, nr. 45, s. 7469-7480, The 45th International Congress and Exposition on Noise Control Engineering, Hamburg, Tyskland, 21/08/2016.

**Mitigating ground vibration by periodic inclusions and surface structures.** / Andersen, Lars Vabbersgaard; Bucinskas, Paulius; Persson, Peter; Muresan, Mihai; Muresan, Liviu-Ionut; Paven, Ioan-Oreste.

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

TY - GEN

T1 - Mitigating ground vibration by periodic inclusions and surface structures

AU - Andersen, Lars Vabbersgaard

AU - Bucinskas, Paulius

AU - Persson, Peter

AU - Muresan, Mihai

AU - Muresan, Liviu-Ionut

AU - Paven, Ioan-Oreste

PY - 2016

Y1 - 2016

N2 - Ground vibration from traffic is a source of nuisance in urbanized areas. Trenches and wave barriers can provide mitigation of vibrations, but single barriers need to have a large depth to be effective-especially in the low-frequency range relevant to traffic-induced vibration. Alternatively, periodic repetitions of mass, stiffness or both in an infinite structure lead to so-called stop bands in the frequency domain. Harmonic loads applied within these stop bands will not induce propagation of energy through the structure, i.e. the energy stays within a nearfield surrounding the source. Less well-defined behavior can be expected for transient loads and finite structures. However, some mitigation may occur. The paper aims at quantifying the mitigation effect of nearly periodic masses placed on the ground surface using two approaches: a small-scale laboratory model and a three-dimensional finite-element model. The laboratory model employs soaked mattress foam placed within a box to mimic a finite volume of soil. The dynamic properties of the soaked foam ensure wavelengths representative of ground vibration in small scale. Comparison of the results from the two models leads to an assessment of the mitigation that can be expected in a real project compared to the mitigation predicted by a numerical model.

AB - Ground vibration from traffic is a source of nuisance in urbanized areas. Trenches and wave barriers can provide mitigation of vibrations, but single barriers need to have a large depth to be effective-especially in the low-frequency range relevant to traffic-induced vibration. Alternatively, periodic repetitions of mass, stiffness or both in an infinite structure lead to so-called stop bands in the frequency domain. Harmonic loads applied within these stop bands will not induce propagation of energy through the structure, i.e. the energy stays within a nearfield surrounding the source. Less well-defined behavior can be expected for transient loads and finite structures. However, some mitigation may occur. The paper aims at quantifying the mitigation effect of nearly periodic masses placed on the ground surface using two approaches: a small-scale laboratory model and a three-dimensional finite-element model. The laboratory model employs soaked mattress foam placed within a box to mimic a finite volume of soil. The dynamic properties of the soaked foam ensure wavelengths representative of ground vibration in small scale. Comparison of the results from the two models leads to an assessment of the mitigation that can be expected in a real project compared to the mitigation predicted by a numerical model.

KW - Ground Vibration

KW - Finite Element Analysis

KW - Small Scale Testing

KW - Ground Vibration

KW - Finite Element Analysis

KW - Small Scale Testing

M3 - Article in proceeding

T3 - Proceedings of the International Congress on Noise Control Engineering

SP - 7469

EP - 7480

BT - Proceedings of INTER-NOISE 2016

A2 - Kropp, Wolfgang

A2 - Estorff, Otto von

A2 - Schulte-Fortkamp, Brigitte

PB - Deutsche Gesellschaft für Akustik, DEGA

CY - Hamburg

ER -