Influence of the vertical loads and eccentricity on the bent frame’s natural period of vibration;
竖向荷载对排架结构自振周期的影响
And then,by using structural mechanics,we analyze and calculate tank horizontal stiffness and natural period of vibration,and stress of lower support columns and tie-rod under the effects of horizontal seismic force and wind .
将球壳和上支柱处理为刚体,球罐质量集中于球心,下支柱处理为结构梁,拉杆处理为只能受拉的绳索(计算中只考虑受拉拉杆),按结构力学分析计算球罐水平刚度和自振周期,以及在水平地震力和风力载荷作用下,下支柱和拉杆的应力(也可考虑基础不均匀沉降球罐整体倾斜的影响)。
A mathematical expression to determine the natural period of vibrations of hanging tower was obtained by solving the equation of the transverse vibration using the analytical model of elastic continuous body and the method of numerical solution.
根据悬挂式塔设备的固定条件与连续条件 ,利用弹性连续体分析模型与数值解法求解振动方程 ,提出了简支条件下悬挂式塔设备自振周期的计算方法。
Study on natural period of homogeneous rock slope and its estimation method
均质岩石边坡自振周期及其估算方法研究
Structural natural periods are important indexes to reflect on absorbed seismic energy, a formula for structural frequency is deducted according to variation principle in this paper, various ap.
结构自振周期是直接反映结构吸收地震能量多少的重要指标 ,本文基于能量变分原理推导了结构频率的计算公式 ,介绍了工程中计算结构自振周期常用的几种近似方法 ,讨论了影响结构自振周期的主要因素。
The natural periods and modes of the CFT arch bridge are calculated by using the subspace iteration method.
以京珠高速公路郑州黄河大桥主桥为研究对象,采用ANSYS有限元程序,建立了下承式钢管混凝土系杆拱桥的空间力学计算模型,利用子空间迭代法计算了该桥梁结构的自振周期和振型,对桥梁的模态特性进行了分析,计算结果可为该桥的设计、施工以及使用阶段的健康检测和维护提供技术参数和依据。
In vitro fertilization and embryo transfer following natural cycles in poor responders.;
卵巢低反应者应用自然周期方案体外受精-胚胎移植的价值
Compare the outcome of frozen-thawed embryo transfer between in natural cycles and artificial cycles
自然周期与人工周期方案冻融胚胎移植结局比较
Referring to the endometrial preparation programs for frozen-thawed embryo transfer, there were two main choices in clinic: natural cycle and hormone-replacement cycle.
冻融胚胎移植周期的子宫内膜准备方案，目前在临床上主要有两种：自然周期和激素替代周期。
Study on Mechanism of Vibration Frequency of Free Site in Microseism Test;
地脉动测试自由场地自振周期的机理研究
Calculation & actual measurement method on natural vibration period of tall buildings
高层建筑结构的自振周期的计算与实测
Study on natural period of homogeneous rock slope and its estimation method
均质岩石边坡自振周期及其估算方法研究
Comparison analysis of natural vibration period of frame-shear wall structure under different constraint conditions
地下室不同约束条件下框-剪结构自振周期对比分析
seismometer free period
地震检波器自由振荡周期
In addition to amplitude and wavelength, a periodic wave is characterized by its frequency.
除了振幅和波长，周期波有它自己的频率。
Periodic Motions and Bifurcations of Multi-degree-of-freedom Vibro-impact Systems;
多自由度冲击振动系统的周期运动和分岔
The Period of Micro-Amplitude Vibration of a Ball in a Free-moving Circular Concave
球在可自由移动的球形空腔内作小振动的周期
QUASI-PERIODIC MOTIONS OF A THREE-DEGREE-OF-FREEDOM VIBRATING SYSTEM WITH TWO RIGID CONSTRAINS
三自由度双侧刚性约束振动系统的概周期运动
A single cycle of such a disturbance.
这种振动的一个周期
Stabilty and Bifurcatuons of Periodic Moton in a Two-degree-of-freedom Vibro-Impact System;
一类两自由度碰撞振动系统的周期运动稳定性与分岔
Taiji Graph Reflects the Most Basic Cyclical Motion,the Simple Harmonic Vibration
太极图反映了自然界最基本的周期运动——简谐振动
The higher modes have shorter periods than the fundamental mode and, moreover, they have higher velocities.
高振型波比基阶振型波周期短，波速高。
The microseism source excitation model and the relation between the magnitude and vibration cycle
微震振源激振模型及振动周期与震级的关系
Each machine cycle takes 12 oscillator or clock cycles.
每个机器周期为12个振荡器或时钟周期。
Vibration Localization in Ordered and Disordered Periodic Double-Leaf Stiffened Panels;
周期和失谐周期加劲双层板中的振动局部化
Transition in the Periodic,quasi-Periodic and chaotic calcium oscillations
周期,准周期和混沌的复杂钙振荡之间的转换
Vibration Attenuation and Isolation of Two-dimensional Periodic Composite Thin Plates;
二维周期性复合结构薄板的减振隔振性能研究