基于局域波分解的大系统派生模态降维研究

文章分析了当前以平衡与截裁为代表的大系统降维理论,鉴于其内容不尽完善,因此基于系统运动模态的特征,在科技与哲理的辩证分析基础上,建立了大系统派生模态理论和组合降维模型。对于工程实际中的系统响应曲线,提出了基于局域波分解的大系统派生模态提取策略实现系统降维。仿真结果表明,基于模态和图形的协同算法应用简便,并可获得较高精度的降维模型。

A Better Model Reduction Algorithm for Large-Scale Systems Using Derived Modal Based on Local Wave Decomposition

Aim.The introduction of the full paper points out what we believe to be the three imperfections of existing model reduction algorithms.So we propose what we believe to be a better one.Section 1 defines the derived modal,which is a new technical term introduced by us;then it defines the combined reduction model,which is also a new technical term introduced by us and is mathematically eq.(4).For the model reduction of a system response curve,section 2 presents a derived modal extraction approach based on loca...