远洋渔船第二代完整稳性薄弱性衡准实船验证分析OA

To address the safety theory deficiencies in China's ocean-going fishing operations under harsh sea condi-tions—characterized by inadequate hazard recognition in waves and insufficient risk control protocols,carry out the study on the seakeeping stability of the ocean-going fishing vessels based on the second-generation intact stability criteria for weakness.Three representative vessel types were selected as research samples:a 40-meter double-deck trawler,a 55-meter longliner,and a 70-meter squid jigger,reflecting mainstream designs in China's distant-water fishing fleet.Guided by the second-generation intact stability criteria issued by IMO and CCS,vulnerability assess-ments were systematically conducted for five critical stability failure modes across three typical operational conditions of each vessel:parametric rolling,pure loss of stability,surf-riding/broaching,excessive acceleration and dead ship stability.By integrating cutting-edge hydrodynamic research advancements into wave stability analysis,this work es-tablishes evaluation criteria and judgment frameworks for assessing wave-induced stability risks in ocean-going fish-ing vessels.It further investigates threshold navigation parameters influencing stability failure modes,ultimately devel-oping a risk probability prediction methodology based on second-generation intact stability criteria.These outcomes provide critical technical support for advancing safety theories in ocean-going fisheries,particularly in enhancing risk identification and mitigation strategies under extreme wave conditions.[Chinese Fishery Quality and Standards,2025,15(01):58-65].