A new shock factor of SWATH catamaran subjected to underwater explosion

OCEAN ENGINEERING

卷:130

Article

Guo, Jun¹  Ji, Xiu-bin²  Wen, Yan-yan¹  Cui, Xiong-wei¹ 

[1] Harbin Engn Univ, Coll Shipbldg Engn, Harbin 150001, Peoples R China

[2] CSIC, Res Inst 703, Harbin 150001, Peoples R China

关键词: SWATH catamaran;    Underwater explosion;    New shock factor;    Impact environment;   

DOI  :  10.1016/j.oceaneng.2016.12.017

来源: Elsevier

【 摘 要 】

In order to measure the extreme degree of the impact environment on a SWATH (small waterplane area twin hull) catamaran subjected to an underwater explosion, this work defines a new type of shock factor based on shock wave energy. This new shock factor is used as a parameter to describe the response from this kind of ship, and it is divided into two categories according to characteristics of the SWATH catamaran structure. This research used finite element software to simulate and calculate the response of SWATH catamaran subjected to an underwater explosion. The validity of this new shock factor is proved in three categories, including total kinetic energy, total strain energy and shock spectrum. The results show that the responses of the SWATH catamaran structure are similar when the new shock factor is equal, and it is also appropriate for situations involving short explosive distances.

【 授权许可】

Free