摘要
由于链条应用年限的增加以及作业环境的多变,现有方法计算精度较差,为此提出基于Matlab的船舶链条零件疲劳强度安全系数计算方法。构建船舶链条零件作业模型,分析链条零件疲劳损伤情况,以此为基础,利用Matlab计算船舶链条零件疲劳应力,拆分船舶链条应力倍数,对应实际链条作业情况,通过安全系数函数计算链条零件疲劳强度安全系数,实现了船舶链条零件疲劳强度安全系数的计算。仿真实验结果显示,船舶链条零件疲劳强度安全系数计算值与标准值的差值范围为-0.40~1.23,平均差值为0.31,表明提出方法具备较好的性能。
Due to the increase of the application life of the chain and the changeable working environment,the calculation accuracy of the existing methods is poor.Therefore,the research on the calculation method of the safety factor of fatigue strength of ship chain parts based on Matlab is proposed.Based on the analysis of fatigue damage of ship chain parts,the fatigue stress of ship chain parts is calculated by Matlab,the multiple of ship chain stress is divided,and the safety factor of fatigue strength of ship chain parts is calculated by the safety factor function corresponding to the actual chain operation.The calculation of safety factor of fatigue strength of ship chain parts is realized.The simulation results show that the difference between the calculated value and the standard value of the safety factor of fatigue strength of ship chain parts is-0.40 to1.23,and the average difference is 0.31,which fully shows that the proposed method has good performance.
作者
杨金霞
YANG Jin-xia(Northern Beijing Vocational Education Institute,Beijing 101400,China)
出处
《舰船科学技术》
北大核心
2020年第18期220-222,共3页
Ship Science and Technology
基金
北京高等学校青年英才计划项目(YETP1818)
北京京北职业技术学院2011年度职教研究课题课程改革与研究(京职院[2011]14号
ZHJYJ1103)
关键词
链条
疲劳强度
安全系数
chain
fatigue strength
safety factor
作者简介
杨金霞(1979-),女,硕士,讲师,研究方向为载运工具与理论及车辆运用与维修。
