自然频率
- 网络frequency;Natural Frequency
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然后根据Laplace变换与Z变换的关系,可以得到系统的无阻尼自然频率和阻尼比。
The undamped natural frequency and damping ratio are obtained in comparison of Laplace transform with Z-transform .
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研究了频率偏差系数k随电网自然频率偏差特性β改变对CPS考核值的影响。
A thorough study is made into the influence of frequency error factor k varied with grid 's natural frequency error performance β on appraisal value of Control Performance Standard ( CPS ) .
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本科目即在教导学生如何应用ANSYS软体解有关结构,热传及自然频率分析等问题。
In this course , we teach students how to use ANSYS to solve the engineering problems .
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基于WAMS的系统自然频率特性系数确定方法
Calculation of Frequency Characteristic Coefficients for an Interconnected Power System Based on WAMS
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NLTK支持多种基于自然频率分布数据进行概率预测的方法。
NLTK supports a variety of techniques for projecting probabilities based on raw frequency data .
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本文采用ANSYS程序对其建立其有限元模型,并用子空间迭代法对结构进行了模态分析,得到了结构的自然频率和振型特征。
The software ANSYS is adopted to establish the finite element model of the structure and the subspace method is used to analyze the structural modal characteristics , then natural frequencies and mode shapes of the structure are obtained .
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文中利用Hamilton原理,采用Love薄壳简化假设,设位移为不受边界条件限制的多项式解,通过求解能量法的特征方程得到结构的自然频率。
From Hamilton 's principle , applying the Love 's simplification for thin shell , the displacements were assumed to be polynomial functions which are not limited by boundary conditions . The nature frequencies were calculated by solving proper characteristic equation .
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然后将它们转化为对应的Fredholm积分方程,得到了材料性质对称分布的简支梁弯曲振动的自然频率。
By converting it to a Fredholm integral equation , numerical results of the natural frequencies for free vibration are obtained for simply-supported beams with symmetrically-distributed material properties .
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联网条件下按联络线功率频率偏差控制(TBC)是自动发电控制(AGC)的主要方式,通过对其控制量进行分析,认为频率偏差系数取系统自然频率特性时能体现电网运行的原则。
The TBC is the main model used in AGC in the interconnected power system . When the coefficient of the frequency bias is equal to the natural area frequency responses characteristic , the system will operate meeting the principles well .
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为了设计并加工轻重量、高刚度的用于Cassegrain式空间遥感相机中的主镜,首先根据重量和自然频率的高低优选主镜的背部基体形状。
A central supported primary mirror of Cassegrain system used in space remote sensing camera is studied in this paper . In order to obtain a lightweight and high stiffness mirror , the best rear shape is selected by the criteria of weight and natural frequency .
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地震采集中检波器自然频率的试验分析
Test and analysis of geophone 's free frequency in seismic acquisition
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计算了望远镜的前十阶自然频率和模态阵型。
The first ten nature frequencies and modals were calculated .
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矩形平板的自然频率计算平板湍流摩阻系数的显式表达式
An explicit expression of the turbulent frictional drag coefficient for a flat plate
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任意四边形薄板自然频率的加权残值法计算
Calculation of Frequency of Arbitrary , Tetragon Plate with Method of Weighted Residuals
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这是空间氢原子释放的自然频率。
It is the natural frequency of emission of the hydrogen atoms in space .
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结果表明,脱层降低了自然频率。
The results show that the presence of a delamination decrease the natural frequencies .
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不同边界条件下脱层对层合梁自然频率的影响
Effect of delamination on the natural frequencies of laminated beam under various boundary conditions
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研究表明,在所研究的频率范围内,弹性轴轴承系统存在两阶自然频率。
The result showed that a flexible shaft-bearing system has two order natural frequencies .
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取得了修正剪切梁自然频率的特征方程。
The characteristic equation for free vibration of a modified shear beam is obtained .
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重点介绍基于自然频率的波形综合雷达目标识别方法。
The emphasis is placed on wave form synthesis target discrimination based on natural frequency .
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应用功的互等定理计算矩形弹性薄板的自然频率
Application of the Reciprocal Theorem for Calculating the Natural Frequencies of Rectangular Elastic Thin Plates
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三峡升船机承船厢浅水船波自然频率的研究
Natural Frequencies of Shallow Water Waves in the Ship Reception Chamber of a Ship Lift
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本文提出了用锁相环跟踪抖动机构自然频率漂移的方法,设计了一种新型抖动控制器。
A dither control method using phase lock technology is presented and a controller is developed .
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模型导弹的自然频率计算
Natural frequencies of a model missile
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讨论了梯度变化和转动惯量对自然频率的影响。
The effects of gradient variation and rotary moment of inertia on the natural frequencies are discussed .
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关键词:微型陀螺仪、单晶、轴角速率感测、动自然频率与模态。
Keywords : micro-gyroscope , silicon single crystal , three-axis angular-rate sensing , natural frequency and mode shapes .
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对某一梯度指数以小的改变,当自然频率超过临界频率,它会有突变。
For some gradient index , the natural frequencies have an abrupt jump when across its critical frequencies .
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研究结果对在水平激励下的圆柱壳进行了频率响应,考虑自由液面的响应比没有考虑自由液面的响应高很多,且最大响应发生在液体晃动的自然频率附近。
The frequency response of cylindrical shell with free surface is analyzed with horizontal acceleration excitation of earthquake .
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而当表面波的频率大于射流振翅摆动的自然频率时,频率锁定现象将不存在。
The phenomenon does not occur when the wave frequency is above the nature frequency of jet flapping motion .
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让问题更复杂的是,一旦横杆的尺寸缩小,振动的自然频率便会增加。
Compounding this problem , the natural frequency of the vibration increases as the size of the beam is decreased .