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Parametric Optimization of Towed Line Array ,s Vibration Isolation Modules Base on Pseudo - parallel Improved Genetic Algorithm

JIANG Guo-he;XUE Feng;XU Ying-bo

2011, 31 (4): 29-32. DOI: 10.3969/j.issn.1006-1355-2011.04.007

Abstract （1708）

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In order to predict the vibration isolation capability of towed line array vibration isolation modules, a planar fluid-structure coupling model of the array is constructed by means of ANSYS code. And the vibration isolation capability is calculated with the consideration of the influence of the load (acoustic module) on the vibration isolation modules. Pseudo-parallel improved genetic algorithm and ANSYS’s parameterized design language APDL are combined to realize the optimization of the main parameters of the vibration isolation modules. And the optimal values of internal oil density, optimal elastic moduli of hull and the components of the isolation modules for 20Hz and 40 Hz exciting frequencies are obtained. This work provides a reference for improving the performance of vibration isolation modules.

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Parameter Calculation and Analysis of Vibration Isolation System in Towed Array Sonar

JIANG Guo-he;XUE Feng;TANG Zeng-yan

2011, 31 (3): 1-4. DOI: 10.3969/j.issn.1006-1355-2011.03.001

Abstract （1713）

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In order to investigate the influence of vibration isolation system parameters of towed array sonar on its vibration isolation effect，a three-dimensional fluid-structure coupling field model is constructed by means of ANSYS. The influence of vibration isolation is calculated by using material parameters of the vibration isolation system. Numerical simulation results are compared with experimental results. Results of the parameter calculation provide a base for the study of vibration capabilities of the isolation system. The results and conclusions have reference values for improving the capability of the vibration isolation system.