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- By adapting Davenport spectrum for horizontally fluctuating wind, wind velocity time history at the opening was simulated by using trigonometric series. 采用Davenport水平脉动风速谱;利用三角级数对开孔处的来流风速时程进行模拟.
- fluctuating wind velocities 脉动风速
- Fluctuating wind pressures acting on buildings are complicated functions of both time and space. 作用在建筑物上的脉动风压是一个空间和时间的复杂函数。
- This is especially true in the daytime when wind velocities are commonly higher than at night. 这种情况在风速通常高于夜间的白天尤其如此。
- Wind driven generators are economical where wind velocities average 6 m/s or more. 风速平均在6米/秒以上的地方，风力发电机是经济的。
- With special reference to the non-Gaussian model of wind-load,the statistical moments of fluctuating wind forces until the 5th order are deduced for Davenport spectrum. 基于风载非Gauss模型推导了Davenport谱下结构脉动风载的五阶统计矩表达。
- Using computer simulation, the results show that fluctuating wind synthesis with time frequency nonstationarity can reflect normal characteristic of fluctuating wind. 通过计算机仿真分析，结果表明小波重构合成的脉动风具有良好的时频非平稳性，能够反映脉动风特性；
- The motion equation of a high-rising structure subjected to fluctuating wind load is developed, with the consideration of soil-pile-structure interaction. 摘要本文推导了考虑桩－土－结构动力相互作用时高层建筑在脉动风荷载作用下的运动方程。
- In accordance with different positions of high speed train in tunnel,unsteady flow formulas for the evaluation of piston wind velocities in tunnel and aerodynamic drag on trains have been established in this paper. 针对高速列车在隧道中不同位置处行驶时，本文分三种情形建立了非恒定流活塞风计算公式，并建立了适用于非恒定流的类似于原朝茂公式的空气阻力计算方法。
- At the same time, the nondimensional spectrum of the fluctuating wind pressure is fitted.And preliminary study of the non-steady computing method of wind-induced vibration response is carried out. 同时对屋盖上的脉动风压无量纲自谱进行了拟合,初步探讨了风振响应的非定常计算方法。
- 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. 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。
- The fluctuating wind loads on a dome-like roof are reconstructed based on the synchronous multi-pressure scanning technique of wind tunnel tests and the proper orthogonal decomposition(POD)method. 根据风洞试验同步多点压力扫描技术和本征正交分解方法重构作用于圆拱顶屋盖的脉动风力。
- The propeller can follow the wind velocity closely during hingspeed gusts. 螺旋桨在有高速狂风时能紧紧地追随风速。
- The propeller can follow the wind velocity closely during high-speed gusts. 螺旋桨在有高速狂风时能紧紧地追随风速。
- The up-convexity of the curves increases as wind velocity increases. 跃移边界层外风速分布可较好地用对数函数来描述。
- three-dimensional fluctuating wind field 三维脉动风场
- spectral density of fluctuating wind load 脉动风压谱
- Control Air. Wind velocity increased or decreased by up to 10 miles per hour +5 miles per hour/level. 操控气流：风速增加或减少10英里每小时加上每显能者等级+5英里每小时。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
