scholarly journals Hydrodynamic Loading on Vibrating Piezoelectric Microresonators

2018 ◽  
Author(s):  
Huacheng Qiu ◽  
Helmut Seidel
Keyword(s):  
Hydrodynamic Loading

scholarly journals Effect of Roughness of Mussels on Cylinder Forces from a Realistic Shape Modelling

2021 ◽  
Vol 9 (6) ◽  
pp. 598
Author(s):  
Antoine Marty ◽  
Franck Schoefs ◽  
Thomas Soulard ◽  
Christian Berhault ◽  
Jean-Valery Facq ◽  
...  
Keyword(s):  
Marine Species ◽  
Offshore Structures ◽  
Offshore Wind ◽  
Mooring Lines ◽  
Shape Modelling ◽  
Offshore Wind Turbines ◽  
Specific Effects ◽  
Hydrodynamic Loading ◽  
Floating Offshore Wind Turbines ◽  
Realistic Shape

After a few weeks, underwater components of offshore structures are colonized by marine species and after few years this marine growth can be significant. It has been shown that it affects the hydrodynamic loading of cylinder components such as legs and braces for jackets, risers and mooring lines for floating units. Over a decade, the development of Floating Offshore Wind Turbines highlighted specific effects due to the smaller size of their components. The effect of the roughness of hard marine growth on cylinders with smaller diameter increased and the shape should be representative of a real pattern. This paper first describes the two realistic shapes of a mature colonization by mussels and then presents the tests of these roughnesses in a hydrodynamic tank where three conditions are analyzed: current, wave and current with wave. Results are compared to the literature with a similar roughness and other shapes. The results highlight the fact that, for these realistic roughnesses, the behavior of the rough cylinders is mainly governed by the flow and not by their motions.

scholarly journals A MONTE-CARLO MODEL FOR CAISSON OVERTURNING BY TSUNAMIS

2020 ◽  
pp. 1
Author(s):  
Jennifer L. Irish ◽  
Robert Weiss ◽  
Beverly Goodman-Tchernov
Keyword(s):  
Monte Carlo ◽  
Scaling Law ◽  
Monte Carlo Model ◽  
Community Resilience ◽  
Coastal Inundation ◽  
Hazard Exposure ◽  
Hydrodynamic Loading ◽  
Robust Planning

Robust planning, engineering, and design in regions exposed to coastal inundation and wave extremes are critically important for ensuring economic and community resilience. To address this need, the profession is moving toward multi-faceted, risk-based approaches based on probabilistic hazard exposure that account for uncertainty. Herein, a Monte-Carlo model for sliding and overturning of caissons under extreme hydrodynamic loading is presented. The model may be used to support risk-based analyses during caisson design as well as in the characterization of inundation extremes from contemporary hazard reconnaissance and from the geological and archaeological records. Herein, model applications are presented (1) to characterize the 2nd century AD Mediterranean tsunami that damaged the ancient harbor of Caesarea, Israel and (2) to develop a scaling law for overturning.

Corrigendum to: “Spatial–structural properties of woody riparian vegetation with a view on reconfiguration under hydrodynamic loading” [Ecol. Eng. 85 (2015) 85–94]

2016 ◽  
Vol 94 ◽  
pp. 698
Author(s):  
Clemens Weissteiner ◽  
Johanna Jalonen ◽  
Juha Järvelä ◽  
Hans Peter Rauch
Keyword(s):  
Structural Properties ◽  
Riparian Vegetation ◽  
Hydrodynamic Loading

scholarly journals Hybrid simulation of a structure to tsunami loading

2019 ◽  
Vol 23 (1) ◽  
pp. 3-21
Author(s):  
Bahareh Forouzan ◽  
Dilshan SP Amarsinghe Baragamage ◽  
Koushyar Shaloudegi ◽  
Narutoshi Nakata ◽  
Weiming Wu
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Tsunami Wave ◽  
Hybrid Simulation ◽  
Structural Response ◽  
Fluid Loading ◽  
Hydrodynamic Loading ◽  
Simulation Step ◽  
Displacement Based ◽  
Structural Hybrid

A new hybrid simulation technique has been developed to assess the behavior of a structure under hydrodynamic loading. It integrates the computational fluid dynamics and structural hybrid simulation and couples the fluid loading and structural response at each simulation step. The conventional displacement-based and recently developed force-based hybrid simulation approaches are adopted in the structural analysis. The concept, procedure, and required components of the proposed hybrid simulation are introduced in this article. The proposed hybrid simulation has been numerically and physically tested in case of a coastal building impacted by a tsunami wave. It is demonstrated that the force error in the displacement-based approach is significantly larger than that in the force-based approach. The force-based approach allows for a more realistic and reliable structural assessment under tsunami loading.

Closure to “Hydrodynamic Loading on River Bridges” by Stefano Malavasi and Alberto Guadagnini

2005 ◽  
Vol 131 (7) ◽  
pp. 622-623 ◽  
Author(s):  
Stefano Malavasi ◽  
Alberto Guadagnini
Keyword(s):  
Hydrodynamic Loading

Polyurea coated aluminum plates under hydrodynamic loading: Does side matter?

2016 ◽  
Vol 98 ◽  
pp. 1-12 ◽  
Author(s):  
O. Rijensky ◽  
D. Rittel
Keyword(s):  
Hydrodynamic Loading ◽  
Aluminum Plates

On the Dynamic Behaviour of Offshore Foundation Footings in a Moving Ocean Bed

2006 ◽  
Author(s):  
Vincent O. S. Olunloyo ◽  
Charles A. Osheku
Keyword(s):  
Dynamic Behaviour ◽  
Integral Transform ◽  
Three Dimensional ◽  
Dynamic Interaction ◽  
External Excitation ◽  
Foundation Soil ◽  
Hydrodynamic Loading ◽  
Response Profiles ◽  
And Performance ◽  
Soil Dynamic

The reliability of partly submerged production storage platforms deployed for the exploitation of geo-resources in deep and ultra-deep offshore locations is strongly influenced by the dynamic stability and performance of their foundation footings under hydrodynamic loading and external excitation. This paper presents an integral transform approach for investigating the effects of the three-dimensional motion of the gripping ocean bed subsoil layer under pressurized external excitation. For this, the fluid-foundation-soil dynamic interaction boundary value problem is modeled as an elastic plate on an elastic foundation. In particular, closed form expressions for the dynamic response profiles and the natural frequency of vibration as modulated by the ocean bed poro-mechanics are analysed and presented.

Hydrodynamic Loading For Harbor Protection

2019 ◽  
Author(s):  
Ibrahim Naeem ◽  
Emad Ud Din ◽  
Muhammad Sajid ◽  
Zaib Ali
Keyword(s):  
Hydrodynamic Loading
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