卡箍装配缺陷对管道强度的影响分析  

Effect of clamp assembly defect to the strength of pipelines

作　　者：张奔[1] 王安强[1] 黄益民[1] 刘永寿[1] 岳珠峰[1] 

机构地区：[1]西北工业大学工程力学系,西安710129

出　　处：《机械设计与制造》2010年第12期85-87,共3页Machinery Design & Manufacture

基　　金：国家高技术研究发展专项(863计划)资助项目(2007AA04Z404);陕西省自然科学基础研究计划项目(SJ08A17);西北工业大学科技创新基金资助项目(2008KJ02019)

摘　　要：卡箍装配是管道装配中最常用的方法,装配缺陷严重影响管道的使用寿命和稳定性。利用ANSYS有限元软件对管道的卡箍装配进行模拟,分别建立正常、过紧和松动三种装配情况下的管道模型,求解并比较了各种装配状态下管道模型的应力、位移和固有频率等特征量。通过改变缺陷装配下管道模型的关键参数,探究装配缺陷程度对管道强度的影响。计算结果表明:装配缺陷使管道的强度特征量发生改变,并且管道的强度随缺陷程度的不同而不同。Clamp assembly method is usually used in the pipeline assembly.Assembly defects is very harmful to the service life and stability of pipeline.Clamp assembly in pipelines is simulated by finite element software—ANSYS,and the models in three assembly cases of normal assembly,tight assembly and loosen assembly are established;then,strength characteristic such as stress,displacement and natural frequencies are solved and compared;finally,key parameters of the pipeline with assembly defects are altered to study influences on strength of the degree of assembly defects.The date calculated above indicate that assembly defects impact strength of pipeline,and the strength is different due to the degree of assembly defects.

关 键 词：卡箍 装配状态 缺陷程度 管道强度 影响分析 管道模型 ANSYS有限元软件 等特征量 同而不同 使用寿命 计算结果 关键参数 固有频率 稳定性 应力 位移 探究 松动 求解 模拟 

分 类 号：TH122[机械工程—机械设计及理论] TH16