考虑波激振动的超大型船舶疲劳损伤计算

doi:10.19423/j.cnki.31-1561/u.2022.03.077

船舶 ›› 2022, Vol. 33 ›› Issue (03): 77-85.DOI: 10.19423/j.cnki.31-1561/u.2022.03.077

考虑波激振动的超大型船舶疲劳损伤计算

周陈炎, 孟巧, 吴颖高

南通理工学院电气与能源工程学院南通 226000

收稿日期:2022-01-11 修回日期:2022-02-22 出版日期:2022-06-25 发布日期:2022-07-14
作者简介:周陈炎（1993-）,男,硕士,讲师,研究方向：船舶结构强度可靠性分析。孟巧（1982-）,女,硕士,讲师。研究方向：船舶水动力计算。吴颖高（1961-）,男,博士,教授/研究员级高工。研究方向：船舶大数据分析。
基金资助:
南通市市级科技计划项目（JCZ20183）

Fatigue Damage Calculation of Ultra-Large Ships Considering Wave Induced Vibration Effects

ZHOU Chenyan, MENG Qiao, WU Yinggao

College of Electrical and Energy Engineering, Nantong Institute of Technology, Nantong 226000, China

Received:2022-01-11 Revised:2022-02-22 Online:2022-06-25 Published:2022-07-14

摘要/Abstract

摘要： 超大型船舶由于相对刚度较低,导致波激振动现象明显。常规的准静态谱分析法未考虑船体的弹性特征及与水动力载荷的耦合效应,无法求解考虑波激振动下的船舶疲劳损伤问题。针对上述问题,以应力模态叠加法为基础,来解决考虑波激振动影响时的船体疲劳强度评估问题,并以某超大型矿砂船为例进行疲劳计算,将结果与准静态谱分析法的结果进行对比分析。结果表明：计及波激振动效应,疲劳应力响应在高频段出现双峰甚至多峰现象,峰值点出现在遭遇频率接近船体固有频率时。波激振动效应使船体结构疲劳寿命大大降低,对于北大西洋海况,船舶在压载工况下的波激振动效应相较满载工况更明显。此方法对解决考虑波激振动下的船舶疲劳评估问题具有一定的参考意义。

关键词: 超大型船舶, 波激振动, 应力模态叠加, 谱分析法, 疲劳损伤

Abstract: Springing occurs obviously for ultra-large ships due to their relatively low stiffness. The conventional quasi-static spectral analysis method cannot solve the problem of ship fatigue damage with consideration of springing, as it ignores the coupling effect of the elastic characteristics of the hull and the hydrodynamic load. To address the above problems, the stress-mode superposition method is used to solve the problem of the fatigue strength assessment for ship hull considering the springing effect. The fatigue of an ultra-large ore ship is calculated and compared with the results of the quasi-static spectral analysis method. The results show that considering the springing effect, the fatigue stress response has double peaks or even multi-peaks in the high frequency band when the encounter frequency is close to the natural frequency of the hull. The springing effect has a greater impact on fatigue when the ship sails in the bow quartering sea, and the springing greatly reduces the fatigue life of partial hull structures. This method can provide references for the ship fatigue assessment under the consideration of springing effect.

Key words: ultra-large ship, springing, stress modal superposition, spectral analysis method, fatigue damage

中图分类号:

U661.43

周陈炎, 孟巧, 吴颖高. 考虑波激振动的超大型船舶疲劳损伤计算[J]. 船舶, 2022, 33(03): 77-85.

ZHOU Chenyan, MENG Qiao, WU Yinggao. Fatigue Damage Calculation of Ultra-Large Ships Considering Wave Induced Vibration Effects[J]. Ship & Boat, 2022, 33(03): 77-85.

参考文献

[1] 张志康,李丹丹,林焰,等.波激振动对超大型集装箱船疲劳强度的影响研究[J] .中国造船,2019(1):1-10.
[2] GUI Hongbin, CHEN Zhanyang. Investigation of springing and whipping responses of ships based on nonlinear hydroelastic method[C] //第二届船舶振动噪声国际研讨会论文集,2019:24-28.
[3] ZHANG Ming, YU Haicheng, FENG Guoqing, et al. Investigation on effects of springing and whipping on fatigue damages of ultra-large container ships in irregular seas[J] . Journal of Marine Science and Technology, 2021,26:432-458.
[4] IACS. Container ships guidelines for surveys, assessment and repaie hull structures[S] . London: Wither & Co., Ltd., 2005.
[5] RAN Huilong, ZHANG Kaihong ,LI Hui . Research of springing and whipping influence on ultra-large containerships’ fatigue analysis[J] . Journal of Shanghai Jiaotong University (Science),2018(3):429-437.
[6] ABS. Guidance notes on springing asessment for container carriers: ABS 0172-2014[S] . US:American Bureau of Shipping,2014.
[7] IACS. Common Structural Rules for Buil Carriers and Oil Tankers[S] . 2018.
[8] YANG Peng, ZHANG Wei, DING Jun, et al. Experimental investigation of nonlinear springing and fatigue assessment of a 308 000 DWT oil tanker and a 205 000 DWT bulk carrier in a basin [J] . Ocean Engineering,2020,217,Article 107984.
[9] MALENICA S, SENJANOVIĆ I, TOMAŠEVIĆ S, et al. An efficient hydroelastic model for wave induced coupled torsional and horizontal ship vibrations[C] //Proceeding of the 21th International Workshop on Water Waves and Floating Bodies IWWWFB, UK, 2006.
[10] 赵南,纪肖,李辉.弹振对船舶疲劳强度的影响[J] .大连海事大学学报,2012(1):21-24.
[11] STORHAUG G, MOAN T.Springing/whipping response of a large ocean-going vessel investigated by an experimental method[C] //Hydroelasticity in Marine Technology. Wuxi,China,2006:89-102.
[12] 汪雪良,赵南,丁军,等. VLCC在波浪中弹性响应的理论与模型试验研究[J] .船舶力学,2016(增1):127-136.
[13] MALENICA S, TUITMAN J T, BIGOT F, et al.Some aspects of 3D linear hydroelastic models of springing[C] //8th Int. Conference on Hydrodynamics ICHD 2008. 2008.
[14] 陆鑫森,金咸定,刘涌康. 船体振动学[M] . 北京:国防工业出版社,1980.
[15] 中国船级社. 船体结构疲劳强度指南[S]. 北京:人民交通出版社,2018.
[16] HSE. Offshore Technology Report[R]. UK: BOMEL Ltd.,2001.
[17] JIAO G, MOAN T.Probabilistic analysis of fatigue due to Gaussian load processes[J]. Probabilistic Enegineering Mechanics,1990(2):76-83.
[18] 焦甲龙,卿川东,任慧龙,等. 基于FEM-BEM法考虑弹振效应的超大型船舶结构疲劳损伤分析[J].中国造船,2019(2):117-130.

编辑推荐

Metrics

联系电话：（021）63161688-105006
传真：（021）63151255
E-mail：chuanbo@maric.com.cn

考虑波激振动的超大型船舶疲劳损伤计算

Fatigue Damage Calculation of Ultra-Large Ships Considering Wave Induced Vibration Effects

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 3

编辑推荐

Metrics

[1]	周陈炎, 吴颖高, 孟巧, 陈玲. 基于谱分析法的铝合金三体船疲劳强度直接计算分析[J]. 船舶, 2021, 32(05): 40-46.
[2]	朱东华;. 波致立管疲劳损伤计算方法研究[J]. 船舶, 2014, 25(06): 21-26.
[3]	孙雪荣;乔国瑞;. 超大型耙吸挖泥船的自由振动分析[J]. 船舶, 2014, 25(03): 1-6.