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natural frequencies
    Iteration Method for Finding the Damped Natural Frequencies of Foundation Vibration
    基础阻尼振动固有频率迭代求解
    The Iteration Method with Convergent Factor for the Natural Frequencies and Modes of Vibration
    收敛因子法迭代求振动固有频率和振型
    Calculation and Measurement of Natural Frequencies of Vertical Flexible Beam
    垂直柔性梁固有频率的计算与测试
    The Basis of Finite Element Method Analysis of Natural Frequencies and Modes of Electrical Machine Stators
    电机定子固有频率及其模态的有限元法分析基础
    TWO NEW AND SIMPLE APPROXIMATE FORMULAS ON THE NATURAL FREQUENCIES
    两个计算固有频率新的简便近似公式
    Calculation of Natural Frequencies of Complicated System
    复杂系统扭振固有频率计算
    Perturbation Analysis and Estimation of Dynamic Characteristics of a structure with close Natural Frequencies
    具有集聚固有频率的结构的动特性摄动分析和估计
    THE CALCULATION OF NATURAL FREQUENCIES OF ELASTIC SIMPLY SUPPORTED BEAMS WITH CONCENTRATED MASS
    带集中质量的弹性简支梁固有频率的计算
    THEORETICAL CALCULATIONS OF THE NATURAL FREQUENCIES AND DOMINANT MODES OF TORSIONAL VIBRATIONS
    扭转振动固有频率与主振型的理论计算
    CALCULATING THE NATURAL FREQUENCIES OF OVERHEAD CONVEYER STRUCTURE BY RICCATI'S TRANSLATIVE-MATRIX METHOD
    用Riccati传递矩阵法计算悬挂输送机金属结构的固有频率
    Optimum Design of Ply Orientation Angle for Natural Frequencies of Composite laminates Based on Genetic Algorithm
    基于遗传算法的复合材料层压板固有频率的铺层角优化设计
    Sensitivity of Natural Frequencies of Hull Plated Grillage and its Practical Method of Calculation
    船体板架固有频率的敏感性及实用计算方法
    OPTIMIZATION OF PLY STACKING SEQUENCE FOR NATURAL FREQUENCIES OF COMPOSITE LAMINATES BY GENETIC ALGORITHM
    基于遗传算法的复合材料层压板固有频率的铺层顺序优化
    Calculation of Natural Frequencies of Stators for Switched Reluctance Motors
    开关磁阻电机定子固有频率的计算
    Statistics of Natural Frequencies for Bridge Structures
    桥梁结构固有频率的统计特征
    Calculating the Natural Frequencies of Elastic thin Plates of Variablethickness by Finite Strip-Riccati Transfer Substructure Method
    变厚度弹性薄板固有频率计算的有限条-Riccati迁移子结构法
    Using the general software ANSYS in this paper, vertical coupling vibration of vehicle-rail-floating slab system is simulated, and then natural frequencies, foundation counterforce, vibration acceleration and displacement of car body, interaction force of wheel and rail are obtained, the decreasing vibration efficiencies of floating slab structure and it of general monolithic roadbed are compared, the vertical vibration characteristic of car body is analyzed asa train is passing through the floating slab structures different frequency.
    本文利用通用软件ANSYS,进行了车辆—轨道—钢弹簧浮置板系统的竖向耦合振动分析,得到了耦合系统的固有频率、基础反作用力、车体振动加速度、车体位移、轮轨力等,比较了浮置板结构相对于普通整体道床结构的减振效果,分析了列车经过不同固有频率浮置板时的车体振动特性。
    A Practical Method and Its Software for Design Natural Frequencies Modification of Hull Grillage Beam
    船体板架固有频率实用修改方法及软件设计
    Modifying Structural Natural Frequencies Using the Second Order Sensitivity
    应用二阶灵敏度修改结构固有频率
    Computation of Natural Frequencies of a Rotating Beam
    旋转梁的固有频率计算
 

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