大跨空间结构风速时程模拟需考虑风的时间相关性和空间相关性。
In wind speed time history simulation of large-span spatial structures, both time and spatial correlation should be considered.
它可分文本演示类、象再现类、程模拟类、理示意类、算绘图类等。
It can be classified into different categories, such as text demonstration, phenomenon reappearing, procedure simulation, principle illustration, calculating and drawing, etc.
分析了地震加速度时程模拟的常规方法，指出初始加速度时程的选取十分重要。
The normal method to simulate earthquake acceleration time history is analyzed, and it is shown clearly that choice of initial acceleration time history is important.
利用等时段的特征线法数值模拟三峡永久船闸输水系统不补水工况下的输水特性，得出了输水管道沿程各节点水头及流量的变化规律。
The characteristic line method is used to simulate the characteristics of the water conveyance system of the ship lock in the Three-Gorges Project.
给出了楼板加速度时程的模拟方法。
The method of modeling floor acceleration processes is presented.
其次采用ANSYSLS - DYNA进行了仿真模拟，给出了凹陷变形的时程曲线，获得了与现场实验较一致的结果。
Furthermore, the temporal curves of the maximal depression displacement are obtained by ANSYS LS-DYNA. The simulation results agree with those of the tests.
基于数值模拟方法的风速时程曲线在桥梁结构风振分析中被广泛采用。
Wind speed time series obtained with numerical simulation methods are adopted in structural analysis of wind-induced vibration.
研究了大跨空间结构脉动风荷载的随机模拟技术，基于神经网络进行了风速时程的随机模拟。
The random simulation of dynamic wind load for large-span structures is studied. Wind speed processes based on artificial neural networks are generated.
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.
应用几种不同的湍流模型，模拟计算水力光滑管的沿程阻力系数。
Friction loss factors of hydraulically smooth pipes have been calculated by using several different turbulent models.
采用快速傅立叶变换法（FFT）编制了风荷载模拟程序，实现了随机风场的计算机仿真，仿真得到了16维脉动风荷载时程样本。
Using FFT to workout a wind load simulation program. The computer simulation of the stochastic wind field is achieved. The 16-dimensional random process is got.
利用随机模拟方法给出了可调中心距齿轮链空程在各种情况下的模拟曲线及计算结果。
In this paper, the simulate curve and result for the backlash Center Adjustable Gear train in various cases are given by the random simulate method.
在桥梁抖振精细时程分析基础上，模拟出构件的应力时程，并以南京长江二桥为实例对公式进行了验证。
Based on the accurate bridge buffeting analysis of time history, the time history of components is simulated and numerical example is presented to testify this method.
为了分析海上风机结构在时域内的风振动力反应，进行了脉动风速时程数值模拟研究。
To analyze the wind-induced dynamic response of offshore wind turbine in time domain, the numerical simulation of fluctuating wind velocity time series was studied.
以往对换热器壳程流场和温度场的数值模拟都是建立在多孔介质模型基础上进行的，存在许多问题。
Generally the numerical stimulation on flow field and temperature field of shell distance is based on porous medium model.
在楼扳分区刚性假定的基础上，以弹性变形梁模拟空中连廊的变形，建立了时程分析的复合刚片系振动模型。
Based on the assumption that the floor is infintely rigid in different areas and that the spatial corridors can be modeled as an elastic beam, a composite rigid panel series model is presented.
本文首次验证了纵流壳程换热器选用波纹管作为换热元件采用单元流道模型对壳程进行数值模拟的正确性，同时验证了数值模拟结果的正确性。
The correctness of using periodic unit duct model to simulate the shell-side flow and heat transfer is confirmed for the first time, when using the corrugated tube.
将模拟出的风荷载作用于单层球面网壳，用有限元程序ANSYS进行了网壳结构的风振响应时程分析。
The simulated wind vibration loads are then applied to the time-history analysis of wind vibration response of single-layer spherical latticed shells by the finite-element program ANSYS.
提出了一种管壳式换热器壳程单相流动和传热的三维模拟方法。
A three dimensional thermal-hydraulic model is developed for the analysis of fluid flow and heat transfer in shell-and-tube heat exchanger.
因此，研究实际地震动时程强度包络函数的特性，对合理模拟地震动时程具有重要的意义。
So studying of the envelope function of the practical ground motion acceleration records is very important.
通过分析目标谱分布，并运用MODTRAN模拟计算背景程辐射和整层大气透过率，得到对应不同目标的权函数。
The weight functions were obtained by analyzing target spectra distribution and background radiance, transmittance computed by MODTRAN.
研究主要包括以下几个方面：1风速时程数值模拟及基于数值模拟的风振时程分析研究。
And the contents are as follows: 1 numerical simulation of wind speed and wind vibration time-history analysis based on numerical simulation.
以基于风洞试验风压数据的风振时程分析结果为参考，对基于数值模拟的风荷载时程进行校核并应用于该结构的风振时程分析。
Wind vibration analysis based on numerical simulation mentioned above checked by the results gained time-history analysis based on wind tunnel test data is applied in this paper.
论文首次运用精细时程积分法(PIM)对柴油机裂纹轴系扭转振动进行时域数值模拟，并对裂纹所导致时变刚度的动态性质作了分析。
The precision time step integration method (PIM) is used for the torsion vibration numerical simulation of diesel engine cracked shafting first, and the dynamic stiffness caused by crack is analyzed.
本文从实验和数值模拟两方面，对静止和旋转增程固体火箭发动机补燃室燃烧流场进行了研究。
The combustion flow field in secondary combustion chamber for static and spinning extended solid rocket ramjet were studied experimentally and numerically in detail.
采用结构代表胞元模型数值模拟了在不同相对密度范围的单型铝蜂窝结构在单向压缩过 程中的变形、失稳和破坏现象。
The model of representative unit cell (RUC) is used to numerically simulate the deformation, instability and collapse of single-mode aluminum honeycombs under uniaxial compression.
此外在本文的数值研究过程中发现，MIT零方程模型非常适于复杂条件下的室内气流组织模拟计算，其综合性能优于其它常用模型；
In addition, my computational experience show that MIT zero equation turbulence model have a better performance than other two equation turbulence model in simulating complex indoor airflow;
高速旋转试验台是模拟底排一火箭复合增程炮弹内的固体火箭发动机实验设计的。
The estimation of extend-range solid rocket motor in high speed rotation is a key technique.
计算结果表明该方法可有效地模拟具有时间相关性、空间相关性的节点脉动风速时程。
Statistical analysis results of numerical wind speed time series show that the method is efficient in simulating nodal wind speed time series which has time and space correlativity.
采用零方程模型和3点动量风口模型，应用计算流体力学软件PHOENICS模拟了某候机厅空调气流组织方案的速度场和温度场。
Simulates the air distribution in an air conditioned airport ball by PHOENICS using zero equation turbulent model and three point momentum draught model.
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