Active control of an aircraft tail subject to harmonic excitation

• 来源期刊: 力学学报（英文版）
• 年，卷（期）: 2007,（4）
• 页码范围: 451-462
• 页数: 12页
• 语种: 英文

摘要

Vibration of structures is often an undesirable phenomena and should be avoided or controlled. There are two techniques to control the vibration of a system, that is,active and passive control techniques. In this paper, a negative feedback velocity is applied to a dynamical system, which is represented by two coupled second order nonlinear differ-ential equations having both quadratic and cubic nonlinear-ties. The system describes the vibration of an aircraft tail.The system is subjected to multi-external excitation forces.The method of multiple time scale perturbation is applied to solve the nonlinear differential equations and obtain approx-imate solutions up to third order of accuracy. The stability of the system is investigated applying frequency response equations. The effects of the different parameters are stud-ied numerically. Various resonance cases are investigated. A comparison is made with the available published work.