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Finally, the torsion vibration nature frequency and torque amplitude factor of a rolling mill are calculated by using finite element method. 最后使用有限元法计算了某钢厂冷轧机主传动轴系的扭振固有频率和转矩放大系数。
Keywords free vibration natural frequency;laminate plate;elliptical plate;differential cubature method; 关键词自由振动固有频率;角铺设层叠板;椭圆板;微分容积法;
Vibration natural frequency 自振特性
Discussion for the influence on downhole temperature on torsion vibration natural frequencies of drill strings 井下温度对钻柱扭转振动固有频率影响的讨论
Equation (4-198) yields a first approximation for the change in the natural frequency of vibration. 方程（4－198）给出了一级近似下的固有振动频率的改变量。
Equation(4-198)yields a first approximation for the change in the natural frequency of vibration. 方程(4-198)给出了一级近似下的固有振动频率的改变量。
The lower the natural frequency of the FST is, the better the performance of vibration isolation is. 浮置板系统的固有频率越低，隔振性能越好。
The results indicate that the natural frequency of vibration of multispan stone arch bridge is closely packed and it has adequate safety allowance. 研究结果表明，多跨度石拱桥作为一个整体，其自振频率较为密集，桥梁具有足够的安全裕量。
Mechanical model of an air-spring vibration isolator is studied.The calculation formula of its fundamental natural frequency is derived. 摘要研究了空气弹簧隔振器的力学模型，导出了固有频率的计算公式。
To alleviate the vibration of ethylene compressor in outlet pipelines,the natural frequency was analyzed and calculated by finite element method. 为减轻乙烯压缩机出口管线的振动,采用有限元方法建立管线模型,对管线结构固有频率进行分析计算。
Both increasing the mass and reducing the support stiffness of the slab can reduce the natural frequency of the FST system to achieve better performance of vibration isolation. 可以通过增加浮置板质量和降低浮置板支承刚度的方法降低浮置板轨道系统的固有频率，以达到较好的隔振性能。
The cable was analyzed by multi-element in FEM, its static results were compared with catenary theory, its natural frequency was compared with the chord vibration theory. 采用拉索多单元模拟法分析拉索，将静力分析结果与悬链线理论解进行了对比，并将自振频率与琴弦理论解进行了对比。
Through the swept frequency experiment study for a kind of CD-ROM,the damp ratio of vibration system and natural frequency of vertical vibration model are obtained. 通过对某型号CD光驱的隔振系统作扫频实验,获得振动系统的阻尼比和竖直振型对应的固有频率。
Calculation of Thermal Capacity for Haloalkanes by Molecular Structure Vibration Nature Frequencies 用分子结构固有频率估算卤代烷理想气体和液体的热容
It is the natural frequency of emission of the hydrogen atoms in space . 这是空间氢原子“释放”的自然频率。
An approach has been made upon problems of tuning natural frequency of variable stiffness elastic support of 3D vibration strengthening polishing vibration table. 对三维强化、抛光振动台变刚度弹性支承调谐固频的问题进行了探讨。
The former causes forced vibration at the circular frequency of the crank shaft and the latter causes transient vibration at the natural frequency of the press. 惯性力激发的振动是以曲轴转速为频率的强迫振动，加工力激发的是以压机固有频率为频率的过渡振动。
INFLUENCE OF RIGID BODY AND DEFORMATION COUPLING ON THE VIBRATING NATURAL FREQUENCIES OF THE BOOM IN A CRANE 刚柔耦合运动对起重机吊臂振动固有频率的影响
The natural frequency and mode of longitudinal and torsional vibration of derricks (masts) looked upon as a system of multi-degree of freedom are calculated as well. 按多自由度空间体系计算井架纵向和扭转振动的自振频率和振型。
It is the natural frequency of emission of the hydrogen atoms in space. 这是空间氢原子“释放”的自然频率。