Numerical Analysis and Reduction of Blade-Vortex Interaction (BVI) Noise in Helicopter Using Numerical Simulation

In this article, we present the numerical analysis of a Free Standing Riser. The numerical simulation was carried out using a commercial riser analysis software suit. The numerical model’s dimensions were the same of a 1/70 reduced scale model deployed in a previous experiment. The numerical results were compared with experimental results presented in a previous article [1]. Discussion about the model and limitations of the numerical analysis is included.

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Vibro-Stone Column Reinforcement Mechanism and Numerical Analysis

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.446-449.1940 ◽

2012 ◽

Vol 446-449 ◽

pp. 1940-1943

Author(s):

Yang Liu ◽

Hong Xiang Yan

Keyword(s):

Numerical Simulation ◽

Numerical Analysis ◽

Pore Pressure ◽

Numerical Procedure ◽

Numerical Results ◽

Excess Pore Pressure ◽

Stone Column ◽

Reinforcement Mechanism ◽

Consolidation Theory ◽

Excess Pore

Numerical simulation of vibro-stone column is taken to simulate the installation of vibro-stone column. A relationship based on test is adopted to calculate the excess pore pressure induced by vibratory energy during the installation of vibro-stone column. A numerical procedure is developed based on the formula and Terzaghi-Renduric consolidation theory. Finally numerical results of composite stone column are compared single stone column.

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Blade-vortex interaction experiments - Velocity and vorticity fields

10.2514/6.1990-30 ◽

1990 ◽

Cited By ~ 5

Author(s):

MICHAEL WILDER ◽

MATTHEW PESCE ◽

DEMETRI TELIONIS ◽

DAVIDR. POLING

Keyword(s):

Vortex Interaction ◽

Blade Vortex Interaction

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On Numerical Simulation of the Stepped Soil-Nail Wall

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.353-356.692 ◽

2013 ◽

Vol 353-356 ◽

pp. 692-695

Author(s):

Chang Zhi Zhu ◽

Quan Chen Gao

Keyword(s):

Numerical Simulation ◽

Numerical Analysis ◽

Internal Force ◽

Numerical Results ◽

Analysis Model ◽

Foundation Pit ◽

Soil Nails ◽

Soil Nail ◽

Soil Nail Wall ◽

Design And Construction

Based on an Engineering Example which was supported by the stepped soil-nail wall, a numerical analysis model was established by FLAC3D,and the process of the excavation and supporting was simulated, and the numerical results of the soil nails internal force and foundation pit deformation were obtained. The simulated result was consistent with the measured results. It shows that the method of FLAC3D numerical analysis can be used to the numerical analysis of foundation pit excavation and supporting, and it will provide the basis for the design and construction of practice project.

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