摘要
根据有限元理论,利用ANSYS软件建立了旋转细长梁有限元理论模型。在转速为100 r/min、钻压为200 N条件下,研究内筒轴向压力、细长比的因素影响以及内筒转速对内筒横向位移的变化情况。结果表明:随着细长比的增长,距离中间节点越远的节点,起始时间越滞后。在有自重影响下,下节点的横向位移随轴向力变化,位移依次变大。内筒随着转速的增加,内筒的横向位移也逐渐变大。
Based on finite element theory, using ANSYS software a rotating slender beam finite element theo- retical model is established. The rotational speed of 100 r/min, drilling pressure 200 N under the conditions of the study, tube axial pressure, the slenderness ratio of the factors, as well as drilling pressure for 200 N under the con- ditions of the internal tube of the inner cylinder speed transverse displacement changes. The results showed that： with the growth of the slenderness ratio, the farther the node from the intermediate node, the start time, the more lag; weight impact, the next node horizontal displacement changes with the axial force, displacement followecl by larger; the inner cylinder with speed increases, the lateral displacement of the inner cylinder is gradually larger.
出处
《科学技术与工程》
北大核心
2012年第29期7710-7712,7718,共4页
Science Technology and Engineering
关键词
细长梁
旋转
横向位移
slender beam rotation transverse displacement
