管路系统低噪声弹性支撑安装研究

弹性支撑是减小管路系统噪声源向船体结构传递的主要措施,但安装数量较多且受安装条件限制,部分管路支撑直接与船体结构相连,导致弹性支撑也是振动传递的重要途径.本文利用Abaqus有限元软件计算单位激励下管路系统各弹性支撑点的频率响应特性,分析了弹性支撑安装间距、刚度及位置等因素对管路振动噪声特性的影响,提出管路系统弹性支撑的低噪声安装方法,为舰船管路系统弹性支撑设计提供了重要依据.

Pipeline low noise elastic support installation method research

Pipeline's elastic support is the main measure to reduce pipeline system vibration energy transfer to the hull structure, But there are many elastic supports in the ship pipeline system and part of pipeline's elastic supports connected to the hull directly due to installation limitations, So that the elastic support is also a kind of important vibration transmission. This paper obtained frequency response characteristic of each elastic support's unit in the pipeline system under unit excita-tion by means of Abaqus finite element simulation, and the distance between two elastic supports, the stiffness of elastic sup-ports and the location of elastic supports various parameters' influence on the vibration and noise characteristics are ana-lyzed, And then presented the low noise installation methods of elastic support. Provided significant references to the low noise ship pipeline system elastic support design.