The invention relates to a ship body low-noise grillage design method based on a band gap theory. The method comprises the following steps that excitation source feature information is determined; carrying out low-noise grillage structure design; optimization design of a grillage structure with a non-periodic characteristic; verifying the optimization scheme design; checking the structural strength; according to the technical scheme, starting from the angle of ship grillage structural design, vibration control serves as the design purpose on the basis of guaranteeing the structural strength, vibration reduction design is carried out in a targeted mode according to the spectral characteristics of equipment excitation, the weight of an empty ship cannot be obviously increased, cabin space resources cannot be occupied, the design scheme is relatively flexible, and the design cost is low. And meanwhile, a good vibration stopping effect is achieved, the defects of traditional means are effectively overcome, and the requirements of current ship vibration reduction design are met.
本发明涉及一种基于带隙理论的船体低噪声板架设计方法,包括以下步骤:确定激励源特征信息;开展低噪声板架结构设计;具备非周期特征的板架结构优化设计;验证优化方案设计;结构强度校核;本技术方案从船舶板架结构设计的角度出发,在保证结构强度的基础上以振动控制为设计目的,针对设备激励的频谱特性,有针对性地开展减振设计,不会明显增加空船重量,也不会占用舱室空间资源,设计方案相对灵活,同时具有较好的止振效果,有效规避了传统手段的弊端,符合目前船舶减振设计的需求。
Hull low-noise grillage design method based on band gap theory
一种基于带隙理论的船体低噪声板架设计方法
2025-03-25
Patent
Electronic Resource
Chinese
Geometric modeling method and device for hull grillage and medium
European Patent Office | 2024
|European Patent Office | 2025
|Engineering Index Backfile | 1967
|