Dynamics of an Autoparametric Pendulum-Like System with a Nonlinear Semiactive Suspension

被引：30

作者：

Kecik, Krzysztof ^{[1
]}

Warminski, Jerzy ^{[1
]}

机构：

[1] Lublin Univ Technol, Dept Appl Mech, PL-20618 Lublin, Poland

来源：

MATHEMATICAL PROBLEMS IN ENGINEERING | 2011年 / 2011卷

关键词：

OF-THE-ART;

D O I：

10.1155/2011/451047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents vibration analysis of an autoparametric pendulum-like mechanism subjected to harmonic excitation. To improve dynamics and control motions, a new suspension composed of a semiactive magnetorheological damper and a nonlinear spring is applied. The influence of essential parameters such as the nonlinear damping or stiffness on vibration, near the main parametric resonance region, are carried out numerically and next verified experimentally in a special experimental rig. Results show that the magnetorheological damper, together with the nonlinear spring can be efficiently used to change the dynamic behaviour of the system. Furthermore, the nonlinear elements applied in the suspension of the autoparametric system allow to reduce the unstable areas and chaotic or rotating motion of the pendulum.

引用

页数：15

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