Journal of Food, Agriculture and Environment

Dynamic response analysis of multi-level intake structure

Author(s):

Yuan Ding ¹*, Tongchun Li ¹, Lanhao Zhao ¹, Minzhe Zhou ¹, Xiaona Li ¹, Yun Guo ², Fei Wang ³

Recieved Date: 2013-07-18, Accepted Date: 2013-10-06

Abstract:

In this paper, a three dimensional finite element model is established for the multi-level intake structure. The natural vibration characteristics of the intake structure is analyzed and calculated by considering fluid-structure interaction effect, achieved the influence of fluid on the structure natural vibration characteristic: the natural frequency of the intake structure decreased obviously after considering fluid-structure interaction effect, and the maximum frequency decline rate reached 72%. The hydrodynamic pressure is the results of the three dimensional flow field numerical simulation under the process of power on and off, taking the hydrodynamic pressure as a load applied to the intake structure, using the time history analysis method to analyze the dynamic response of the intake, obtaining the displacement and stress distribution of the intake in the process of power on and off, verifying the security of the scheme, and providing the basis for the safety of the water intake design.

Keywords:

Multi-level intake structure, natural vibration characteristics, FSI, time history analysis method

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Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Environment
Pages: 2415-2418

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