基于ANSYS气动套管补贴装置中心拉杆的模态分析  

MODEL ANALYSIS OF THE MIDDLE DRAW ROD OF THE CASING SUBSIDIES DEVICE BASE ON THE ANSYS

作　　者：向颖[1] 丁毅[1] 曾珊琪[1] 韩艳华[1] 

机构地区：[1]陕西科技大学设计与艺术学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2011年第3期89-92,共4页Journal of Shaanxi University of Science & Technology

摘　　要：针对机械结构设计中多注重静力学的分析和计算,而忽略动态特性的影响,使得一些机械结构在实际工况下出现强度、动态性能和抗振性不满足要求的问题,作者利用ANSYS软件对用于油井中的气动套管补贴装置的中心拉杆进行模态分析,得到中心拉杆前10阶固有频率和振型,从而得出其在动态下是否满足机械结构所要求力学性能的依据.实践证明,借助有限元的模态分析可以有效地提高机械结构设计的准确性、可靠性以及设计效率.Aiming at the shortage that some mechanical structures cannot satisfy the requirements of strength, dynamic performance and seismic performance in actual working conditions because that designers pay more attentions to analysis and calculation of static and ignore the influence of dynamic characteristic. It was carried out with the ANSYS software that the model analysis of the middle draw rod of an casing subsidies device using in the oilfield, and then the top ten natural frequencies and the corresponding modal shapes are gained, which offering the basis for meeting the required mechanical properties of the mechanical structures or not, under the dynamic. It is be proved by the way of practice, that the application of the finite element in engineering design can improve the precision and efficiency of design.

关 键 词：ANSYS 机械结构 套管补贴装置 中心拉杆 模态分析 

分 类 号：TH122[机械工程—机械设计及理论]