噪声与振动控制2017，Vol.37Issue(5)：38-41,4.DOI:10.3969/j.issn.1006-1355.2017.05.008
BTA深孔钻杆系统流固耦合非线性动力学研究
Study on Nonlinear Dynamic Responses of a BTA Deep-hole Drilling Shaft System with Fluid-structure Interaction
摘要
Abstract
An approach to analyze the nonlinear dynamic responses of the deep-hole drilling shaft system considering fluid-structure interaction is presented. Based on the theories of fluid flow in pipelines, the governing dynamic equations of the drilling shaft system are constructed considering the interaction between the drilling shaft and the cutting fluid. The dynamic equations are discretized using Galerkin method. The fourth order Runge-Kutta method is used to obtain the numerical solution of the equations. The nonlinear characteristics of the drilling shaft system are further analyzed by the bifurcation diagram, phase diagram and spectrogram of the dynamic system. The numerical results in this study show that the drilling shaft system has rich and complex nonlinear dynamic behaviors such as periodical motion, quasi-periodical motion and chaotic motion. This work may provide a theoretical guidance for dynamic design and control for deep hole drilling systems.关键词
振动与波/深孔加工/非线性动力学特性/流固耦合/Galerkin方法Key words
vibration and wave/deep hole drilling/nonlinear dynamic behavior/fluid- structure interaction/Galerkin method分类
机械制造引用本文复制引用
马国红,沈兴全..BTA深孔钻杆系统流固耦合非线性动力学研究[J].噪声与振动控制,2017,37(5):38-41,4.基金项目
国家国际科技合作资助项目(2013 DFA70770) （2013 DFA70770）
高等学校博士学科点专项科研基金资助项目(20131420110002) （20131420110002）
中北大学研究生科技立项项目(20161312) （20161312）
