Search - time-varying vibration

Search - time-varying vibration - List

[Algorithm] HT_identification DL : 0: hilbert时频识别（力学领域）Michael feldman编写（自由振动、强迫振动）-hilbert time-frequency identification (mechanical fields) Michael feldman prepared (free vibration, forced vibration)
Update : 2025-04-26 Size : 461kb Publisher : nwei
[matlab] Adaptive-vibration-controlwith-tracking-filters.ra DL : 0: 针对频率周期振荡的振动系统讨论自适应控制问题,在频率跟踪的基础上对频率变化的振动响应进行控制,给出相应的估计、滤波与控制方法。首先在子空间辨识原理的基础上,通过测量信号自相关序列的递推运算获得信号频率然后根据估计频率实时调整带通滤波器的中心频率,使其跟踪信号频率,实现信号分量的跟踪滤波最后在LMS方法的基础上构造对信号分量进行控制的自适应控制器。-The adaptive vibration control of systems excited by forces of periodically varying frequencieswas dis- cussed. The presented adaptive controlwas realized on the basis of tracking of time-varying frequencies and amethod for online frequency estimation, filtering and controlwas proposed. Based on the principle of subspace identification, the time-varying frequencieswere estimated from the recursively computed autocorrelation ofmeasured signals.
Update : 2025-04-26 Size : 392kb Publisher : 黄松
[matlab] WLH DL : 8: 以齿轮系统动力学和非线性动力学理论为基础,针对齿轮系统时变啮合刚度和齿侧间隙耦合作用的具体特点,建立了齿轮系统非线性模型,并用数值积分和数值仿真方法对其在某些参数域中进行了非线性振动研究(Based on the dynamics of a gear system and the theory of nonlinear dynamics, co nsidering characteristics of coupling action of the time-varying mesh stiffness and the gear backlash, a model of the nonlinear gear system is developed. The nonlinear vibration is studied by using numerical integration method and numerical simulation in some parameter fields.)
Update : 2025-04-26 Size : 1kb Publisher : 白天1234