| Related citation: | Luning Cui,Si Chen,Yaping Wang,Lei Zhang,Peng Gao.Safety Analysis and Optimization on Ship-Borne Vehicle Mooring[J].Journal of Harbin Institute Of Technology(New Series),2022,29(4):58-64.DOI:10.11916/j.issn.1005-9113.21042. |
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| Author Name | Affiliation | | Luning Cui | No.92942 Unit of People's Liberation Army of China, Beijing 100161, China | | Si Chen | School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China | | Yaping Wang | School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China | | Lei Zhang | Marine Design and Research Institute of China, Shanghai 200011, China | | Peng Gao | School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110780, China |
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| Abstract: |
| Aiming at the mooring stability of the ship-borne vehicles and the safety of steel chain links under high sea condition, the rigid-flexible coupling dynamics model of deck-vehicle-mooring chain was established, the load characteristics of the mooring chain under class-9 sea state were obtained. The failure mode of the chain link and the influence law of the torsion angle on the stress distribution was obtained. Based on Miner's linear cumulative damage theory, the fatigue life of the mooring chain link was analyzed using the corrected mooring link S-N curve. The existing safety hazards were pointed out. The optimization of the mooring scheme was proposed. The conclusions are as follows: 1) The mooring scheme can meet the mooring stability requirements of vehicles under high sea condition. 2) The failure mode on the outside of the link crown was mainly tensile failure, and the failure mode on the inside is mainly contact fatigue failure under compression. 3) The torsion angle had a significant effect on the stress situation of the chain link. When it exceeds 15 degrees, it will no longer meet the strength requirements. 4) Through the optimization of the mooring scheme, the fatigue life of the steel chain link has been significantly increased |
| Key words: sea conditions mooring safety strength fatigue life |
| DOI：10.11916/j.issn.1005-9113.21042 |
| Clc Number:U661.43 |
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| Descriptions in Chinese: |
| 舰船装载车辆系留安全性分析与优化 崔鲁宁1 ，陈思2 ，王亚平2 ，张磊3 ，高鹏4 （1中国人民解放军92942部队，北京，100161；2南京理工大学机械工程学院，南京，210094；3.中国船舶与海洋工程设计研究院，上海，200011；4.沈阳工业大学机械工程学院, 沈阳 110870） 中文说明：针对高海况下的舰船装载车辆系留安全性问题，建立了甲板-车辆-系留索的刚柔耦合动力学仿真模型，对系固稳定性进行了分析，获得高海况下系留索的载荷特性，分析了链环强度破坏模式，获得了不同弯曲角度对钢链环应力分布影响规律。基于系留索钢链环修正的S-N曲线，采用Miner线性累积损伤理论，进行了钢链环疲劳寿命的分析，分析了存在的安全隐患。通过分析获得以下结论： 1）系留方案能够满足高海况下车辆系留稳定性要求。 2）通过链环静强度分析，链环冠部外侧主要为拉伸破坏形式，链环冠部内侧主要为受压的接触疲劳破坏形式。 3）不同平面外弯曲角度对钢链环强度有显著影响，超过15°将不再满足强度要求。 4）通过系留方案的优化，钢链环疲劳寿命得到显著增加。 关键词：海况，系留，安全性，强度，疲劳寿命 |
