【摘要】 对一端固定一端滑动受轴向简谐载荷的屈曲梁的混沌运动进行了实验。研究了其基本参数共振和主参数共振两种情况。实验发现混沌运动的形式随着激励频度、激励幅值和阻尼的变化而变化。结出了混沌响应的时间历程、响应谱和Poincare映射。更多还原

【Abstract】 Experiments on the chaotic motions of a clamped-sliding buckled beam to a harmonic axial load are presented. Two types of resonance are studied, fundamental and principal parametric resonance. The types of chaos found in the experiments are varied by different excitation frequencies and excitation amplitudes and damping levels. Long-time histories,spectra of the response, and poincare maps are presented.更多还原