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Through the research into the characteristics of 7-DoF high dimensional nonlinear dynamics of a vehicle on bumpy road, the periodic movement and chaotic behavior of the vehicle were found.The methods of nonlinear frequency response analysis, global bifurcation, frequency chart and Poincaré maps were used simultaneously to derive strange super chaotic attractor.According to Lyapunov exponents calculated by Gram-Schmidt method, the unstable region was compartmentalized and the super chaotic characteristic of the nonlinear system was verified.Numerical results by 4-order Runge-Kutta method presented the multiform dynamic behavior of the system. 相似文献
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特种钢丝绳隔振器静态实验研究 总被引：1，自引：0，他引：1
在分析航空发动机外部管路的工况和结构特点的基础上,设计了适合在发动机外部管路支承中使用的类似于悬臂梁结构的钢丝绳隔振器,并对其进行了静态实验研究.静态实验中得到不同结构参数钢丝绳隔振器的滞迟回线、刚度变形幅值关系曲线和能耗系数变形幅值关系曲线.通过分析表明:钢丝绳隔振器呈现明显的滞迟特性,隔振器的刚度、阻尼等性能随变形幅值变化表现出明显的非线性特性,同时,通过改变钢丝绳的结构参数,可以获得具有不同性能的钢丝绳隔振器,以满足不同工况的需求.研究结果对钢丝绳隔振器在航空发动机外部管路中的应用具有重要参考价值. 相似文献
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