相比于正实性，有限频率正实性则是较近提出的概念，并且亦在控制理论中找到了大量应用。
Compared with positive realness, finite frequency positive realness is a new notion, and it also finds some important applications in control theory.
以位移模型为基础，用有限元中的分离变量法的理论，求解了圆柱壳自由振动的固有频率，计算结果与壳体解析解相一致。
This paper calculate inherent frequency of the free vibration of the cylinder shell with the theory of the separated variable method on the basis of displacement model.
根据波动理论，满足随机响应工程计算精度要求的有限元网格大小与待求高频随机响应问题的频率范围上限有关。
According to wave motion theory, finite element mesh size satisfying the needs of engineering calculating precision is relevant to the upper limit of frequency range of random (response) problems.
运用有限元理论，分析了既有线路在不同支承条件下的固有频率和固有振动特性。
By means of the finite element theory, the inherent frequencies and vibration characteristics for existing rail line under different supporting conditions are analyzed.
通过理论计算，得出了线加速度与敏感元件谐振频率之间的关系，并通过有限元软件对其进行了仿真计算。
Relationship between the linear acceleration and the resonant frequency of the sensing unit was deduced and the finite element method was used to simulate the correctness of the theory.
通过有限元软件计算出了筛体结构的固有频率、固有振型，为振动筛的大型化设计提供了理论依据。
The natural frequency and the natural mode of vibrating screen have been calculated by the software for FEM, proposes the theoretical basis for the design of large-sized vibrating screen.
建立了该钻机井架与钻台结合体固有振动特性理论分析的有限元模型并给出了其固有振动频率结果和相应的主振型。
The finite model of the derrick and drilling platform connecting unit is built and the natural vibration frequency and the corresponding vibration mode of it are given here.
建立了该钻机井架与钻台结合体固有振动特性理论分析的有限元模型并给出了其固有振动频率结果和相应的主振型。
The finite model of the derrick and drilling platform connecting unit is built and the natural vibration frequency and the corresponding vibration mode of it are given here.
应用推荐