非线性结构振动及其控制系统的多维ARMA模型

本文研究了结构非线性振动及其控制系统的ARMA模型的建立问题。对结构施行等效线性化处理：对状态变量的观测，仅测量结构的前几个位移或速度。将随机激励和观测噪声等维化处理后，建立了等效结构振动及其控制系统的多维ARMA模型。基于多维ARMA模型，给出了结构受风与地震作用下的ARMA模型和模态分析的ARMA模型。

MULTI-DIMENSION ARMA MODEL OF NONLINEAR STRUCTURAL VIBRATION AND CONTROL SYSTEMS

ARMA model of nonlinear structural vibration and control systems were studied in this paper. The equivalent linear sturcture was made. The first few displacements or velocities ofthe structure can be measured. ARMA model was developed after making the dimension of stochastic excitation and observation noise equal. Based on multi-dimension ARMA, the ARMA model of the sturctures under the action of wind and earthquake and the structural model analysis were presented.