基于ABAQUS和Fe-Safe的岸桥起重机疲劳寿命分析
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摘要
以岸桥起重机为研究对象,运用ABAQUS和Fe-safe联合仿真方法对梯形架、拉杆及整个起重机疲劳寿命进行分析.首先利用HyperMesh对其进行线模型的构建,在ABAQUS有限元软件中对线模型赋以梁截面属性,从而得到岸桥的有限元模型,并对其进行静强度分析;然后根据实际工况确定岸桥起重机的载荷时间历程,并对其材料疲劳属性进行重新定义;最后将静强度分析结果、载荷时间历程和岸桥材料疲劳属性导入Fe-Safe软件,对其进行近似工作条件下的疲劳寿命分析,得到了岸桥钢结构的疲劳情况及疲劳位置.分析结果与实际情况对比表明,该方法为岸桥起重机疲劳可靠性分析提供另一种途径,为结构设计时使用寿命的估算提供了参考,可有效预测钢结构的疲劳可靠性.
Taking the bridge crane as the research object,the fatigue life of the trapezoid frame,pull rod and the whole crane are analyzed by using the combined simulation method of ABAQUS and Fe-safe in this paper.Firstly,HyperMesh is used to carry out beam section attribute of line model in ABAQUS finite element software,so as to obtain the finite element model of bank bridge and analyze its static strength.Then the load time history of the bridge crane is determined according to the actual working condition and its material fatigue property is redefined.Finally,the results of static strength analysis,load time history and fatigue property of shore bridge material were imported into Fe-safe software to calculate its fatigue life under similar working conditions,the fatigue life and weak position of the bridge crane are obtained.This method shows another way for the fatigue reliability analysis of the quayside crane,and can effectively predict the fatigue reliability of the steel structure which provides a reference for the estimation of the service life of the structure design.
Taking the bridge crane as the research object,the fatigue life of the trapezoid frame,pull rod and the whole crane are analyzed by using the combined simulation method of ABAQUS and Fe-safe in this paper.Firstly,HyperMesh is used to carry out beam section attribute of line model in ABAQUS finite element software,so as to obtain the finite element model of bank bridge and analyze its static strength.Then the load time history of the bridge crane is determined according to the actual working condition and its material fatigue property is redefined.Finally,the results of static strength analysis,load time history and fatigue property of shore bridge material were imported into Fe-safe software to calculate its fatigue life under similar working conditions,the fatigue life and weak position of the bridge crane are obtained.This method shows another way for the fatigue reliability analysis of the quayside crane,and can effectively predict the fatigue reliability of the steel structure which provides a reference for the estimation of the service life of the structure design.
引文
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[13] 郑伟,商跃进,王红,等.动车组转向架构架疲劳强度及寿命分析[J].兰州交通大学学报,2016,35(6):67-71.
[14] LING J,ZHOU S P,WU F Q.Finite element analysis and stress test of quayside container crane[J].Advanced Materials Research,2014,1055:229-233.
[2] 陈飞宇.热点应力法及其在起重机金属结构中的应用[D].武汉:武汉科技大学,2012.
[3] 熊琛琛,徐长生.岸桥金属结构裂纹扩展及疲劳寿命研究[J].湖北工业大学学报,2010,25(5):37-39.
[4] 顾海浩,袁祖强,殷晨波,等.基于n-soft的塔式起重机疲劳载荷谱编制及疲劳剩余寿命估算[J].起重运输机械,2015(11):39-45.
[5] WANG S Q,HUANG X M,MA T,et al.Numerical analysis of reflective cracking and fatigue lives of semi-rigid pavement structures using ABAQUS and FE-SAFE[J].Journal of Southeast University (English Edition),2015(4):541-546.
[6] 陈诗超.门式起重机结构有限元参数化建模方法及软件开发[D].哈尔滨:哈尔滨工业大学,2014.
[7] 机械工业部,城乡建设环境保护部.起重机设计规范:GB 3811-83[S].北京:中国标准出版社,1984.
[8] 潘钟林,译.F.E.M标准:欧洲起重机械设计规范[M].上海:上海振华港口机械公司译丛,1998.
[9] 庄茁,由小川.基于ABAQUS的有限元分析和应用[M].北京:清华大学出版社,2009.
[10] 董达善.起重机械金属结构[M].上海:上海交通大学出版社,2012.
[11] 王进.基于有限元法的塔式起重机钢结构疲劳寿命研究[D].重庆:重庆大学,2005.
[12] 冯飞翔.基于ANSYS的岸桥前大梁疲劳分析[D].武汉:武汉理工大学,2013.
[13] 郑伟,商跃进,王红,等.动车组转向架构架疲劳强度及寿命分析[J].兰州交通大学学报,2016,35(6):67-71.
[14] LING J,ZHOU S P,WU F Q.Finite element analysis and stress test of quayside container crane[J].Advanced Materials Research,2014,1055:229-233.