Model order reduction 模型降阶 ; 提高瞬态计算速度数百倍 ; 型降阶
Existence conditions for expected order reduction model and their analytical expressions are given. Finally, a numerical example is also presented.
文中导出了期望的简化模型的存在条件及解析表达式，并提供了一个数值算例。
The model has fully considered the multi way of transition, as well as the frequency and length affected to the reduction in order to have more practical value.
该模型充分考虑了多径传播，以及频率和长度对衰减的影响，使其更具有实用价值。
In order to analyze the rules of head width reduction of slab during side pressing, a finite element model was established by method of numerical simulation.
为了分析定宽过程中板坯头部失宽的变化规律，利用数值模拟的方法建立了板坯侧压的有限元模型。
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