Study on Vibration Reduction Design of Steel-Composite Materials Hybrid Mounting for Ships

Abstract

Abstract: Several mountings, such as steelcomposite material hybrid mounting with/without vibration isolation mass and the steel mounting, were optimized considering the vibration level difference and stress constraints. And the weight of structure is chosen as the objective function. The corresponding structural dynamic optimization mathematical models were established. By introducing the Kriging surrogate programming, the models were solved by multiisland genetic algorithm. The computational results show the steelcomposite material hybrid mounting has better effect than the conventional steel mounting in vibration reduction. The introduction of composite materials plays a key role on vibration. The effectiveness of vibration isolation mass was also demonstrated. The adoption of optimal design method is a necessary means during the design of hybrid mounting.

Key words: hybrid structures, mounting, isolation mass, structural dynamic optimization

CLC Number:

Lv Lin-Hua , YANG De-Qing. Study on Vibration Reduction Design of Steel-Composite Materials Hybrid Mounting for Ships[J]. Journal of Shanghai Jiaotong University, 2012, 46(08): 1196-1202.

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