含复合材料构件的连杆机构运动稳定性研究

Dynamic Stability Analysis of Linkage Mechanisms Fabricated from Composite Materials

在机械系统中应用先进复合材料是改善其动态性能的一条有效途径,本文研究含复合材料构件的机构运动稳定性问题。应用摄动理论导出了该类机构在自激惯性力作用下的运动稳定性条件,得到了机构模态阻尼等与机构运动稳定性之间的关系,对机构各类参数的综合优化。

It is one of the valid strategies improving the dynamic properties of mechanic systems to exploit the advanced composite materials.The dynamic stability of linkage mechanisms fabricated from composite materials is studied in this paper.The conditions of dynamic stability under selfexcitation inertial forces of these mechanisms are derived by use of perturbation theory.The intrinsical relation between the parameters such as modal damping and the dynamic stability of these mechanisms is obtained.This paper is important for the synthetic optimization of these mechanisms'parameters and the improving of these mechanisms' dynamic properties.