Study on Nonlinear Dynamic Responses of a BTA Deep-hole Drilling Shaft System with Fluid-structure Interaction

doi:10.3969/j.issn.1006-1355.2017.05.008

Abstract

摘要：

提出一种研究深孔钻杆系统流固耦合的非线性动力响应的方法。基于输液管道的理论，考虑钻杆和切削液耦合作用来构建钻杆系统的动力学模型。采用Galerkin方法对系统运动方程进行离散，并运用四阶Runge-Kutta方法获得系统方程的数值解。通过系统的分岔图、相图和频谱图，分析了钻杆系统振动的非线性特性。研究数值结果表明，钻杆系统具有丰富复杂的非线性动力特性，如周期性运动，拟周期运动和混沌运动，能够为深孔钻杆系统动态设计及控制提供理论指导。

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

CLC Number:

TH113

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.

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Study on Nonlinear Dynamic Responses of a BTA Deep-hole Drilling Shaft System with Fluid-structure Interaction

BTA深孔钻杆系统流固耦合非线性动力学研究

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