作者基于等效风谱理论,给出了高层建筑结构在风荷载作用下可靠度分析的方法。
In this paper, reliability analysis method of tall building under the action of wind is put forward based on the equivalent wind spectrum theory.
这一风场模拟是一个新的尝试,即不依靠已有的风谱,而是利用实际风速时程记录的方法。
The method making a new task in simulating natural wind. not to depend on old wind spectrum, it depends on real wind velocity continuous records.
风场模拟涉及的风参数主要包括脉动风谱和空间相关函数,对风洞中的风场参数进行了实测拟合并应用于风场模拟当中。
Wind field parameters involved in wind field simulation include mainly turbulent wind power spectrum density and spatial-correlation function, which is measured and applied to wind simulation.
首先建立了脉动风荷载的功率谱密度函数矩阵。
The matrix of power spectral density function of fluctuating wind load is established first.
这两类太阳风探测仪都是通过测量太阳风粒子的E/Q谱的空间分布来确定太阳风速度、温度和数密度。
Both of the two kinds of detectors can obtain the spectral of E/Q ofions. Then the velocity, temperature and density distributions can be obtained by E/Qspectral.
提出了一种有效而实用的风荷载模拟方法。利用工程实际中普遍采用的风速谱,采用多维自。
An efficient and practical method of wind load simulation. Commonly used in engineering practice using the wind speed spectrum, the use of multi-dimensional self.
根据可压缩情况下的流体力学方程组,导出垂直切变风场中大气声重波的谱方程。
By using the compressible hydrodynamic equations, a spectral equation describing propagation of AGW's in a region of vertical wind shear is derived.
风洞试验中对风剖面、湍流积分尺度及湍流谱作了模拟。
The wind speed profile turbulence integral scale, and turbulence spectrum are simulated in the wind tunnel test.
引入横风力谱模型,分析了某高宽比为6的方形截面高层建筑在不同地貌和风速条件下的横风向风振响应。
With the across-wind force spectrum, the across-wind dynamic responses of tall square-section buildings with aspect ratio of 6 is analyzed in the conditions of different ground and wind velocities.
为考虑风力发电机组桨叶旋转效应,准确确定作用在桨叶风荷载,研究基于旋转样本谱进行风场模拟的问题。
In order to consider the rotational effect of blades and determine the exact loads of the wind turbine system, wind field simulation based on the rotationally sampled spectrum was studied.
生成了若干关键点的功率谱密度(PSD)和响应的均方值,以及荷载风振系数、位移风振系数。
As a result, some parameters of the key points have been got including the power spectrum density (PSD), the response variance, the gust response factor for load and displacement.
随着一次风煤粉浓度下降,K的发射谱线强度下降。
The emitted line intensity of K decreases with reducing of the concentration of pulverized coal.
将谐波合成法与修正的谱描述法结合用于大跨度桥梁主梁及桥塔上的随机风场模拟。
A combination of the wave superposition method and the modified spectral representation method is applied to a wind field simulation for whole bridge including the deck and the towers.
本文研究声重波在垂直切变风场中传播时谱结构的改变。
In this paper, the variation of spectral structure of acoustic gravity waves (AGW's) propagating through a region of vertical wind shear is investigated.
本文用四系数的低阶谱模式研究了一个可移动风应力强迫作用下的海流方程多态解的问题。
Multiple solutions to ocean equations under the influence of moving wind-stress with four Fourier comPonents are studied.
运用空气动学原理,研究了大庆油田的陆地风场特性,进行了井架结构风载荷谱理论分析。
The principle of the aerodynamics is used to study the land wind field characteristic of the Daqing oil field and the wind load spectrum theory of oil rig derrick has been established.
而现有海浪谱缺少风对海浪影响的观测资料,因此我们进一步构造了风力模型,模拟风力作用下的海浪。
Because spectrum of ocean waves is short of observation information about the affect of wind force on ocean waves, a wind force model is constructed to simulate ocean waves under wind force.
对于连续突风,由频响函数求得响应的功率谱密度。
The approach of continuous gust response was based on the calculation of the power spectral density.
麦克风间距的限制是互功率谱加权声源测向方法最大的问题,声源测向精度、角度分辨率与麦克风间距成反比。
The method used in the literature greatly limit the distance between the microphone-array, and the precision of direction finding is related to the distance of the microphone-array.
文中将提出普遍型的风浪谱,其中除风速外,尚包括风时与风区作为参量。
Generalized wind wave spectra are proposed. In addition to wind speed they contain duration and fetch as parameters.
同时指出,如需按CQC方法进行精细计算,就必须首先获得结构各点风荷载之间互功率谱密度函数的实部和虚部。
It is also pointed out that, only after both real part (or co-spectrum) and imaginary part (or quadrature spectrum) of cross spectra between random wind loads of an…
系统阐述了这种方法的分析过程,其中涉及到脉动风压规格化功率谱的推导以及脉动风荷载功率谱的计算。
Relating to the deduction of wind pressure uniform spectrum and calculation of wind load spectrum, analytical progress of M. Shinozuka method is systemically discussed.
系统阐述了这种方法的分析过程,其中涉及到脉动风压规格化功率谱的推导以及脉动风荷载功率谱的计算。
Relating to the deduction of wind pressure uniform spectrum and calculation of wind load spectrum, analytical progress of M. Shinozuka method is systemically discussed.
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