摘要
用数值积分方法 ,分析了无阻尼单自由度参数振动系统在给定的单频刚度激励和单频外载荷激振时的非线性动力学响应特性。研究表明了参数振动问题的主要特征 :1 )单频激励多频响应 ;2 )多频响应中各谐波的分布具有特殊的规律 ;3)
Using numerical method the nonlinear chracteristics of response for the single degree of freedom of parametric vibration system without damping under single frequency stiffness and outer excitations is studied in this paper. It is shown that some important characteristics of parametric vibration system including (1) single frequency excitation leads to multi frequencies response; (2) some special frequency distributed states are found and (3) the response of system shows multi frequencies resonant phenomenon.
出处
《应用力学学报》
CAS
CSCD
北大核心
2003年第2期147-151,共5页
Chinese Journal of Applied Mechanics
