Das eine Reihe an bekannten Benchmark-Szenarien für Windsimulation vorgestellt。 Der Nachfolgende Beitrag dreht sich dabei um den “案例 A - 高层建筑,形状为 2:1:1”。 Im Folgenden wird das beschriebene Szenario in RWIND2 nachgebildet und die Ergebnisse mit den simulierten und derexperimentellen Resultate des AIJ verglichen.
在 1990-1/NA/A1:2012-08 的基础上,根据 DIN EN 1992-1-1/NA/A1:2015 设计了一根钢筋混凝土柱,其常温下承载力承载力(ULS)是正常的。 本设计采用名义曲率法;见 DIN EN 1992-1-1,章节 5.8.8。 该柱位于三跨框架结构的边缘,该结构由 4 根悬臂柱和 3 个铰接在柱上的独立桁架组成。 柱子承受垂直方向的荷载,预制桁架的作用是雪荷载和风荷载。 将结果与文献进行了比较。
货架支架采用工字形截面。 The axial rotation is restricted on both ends while warping is enabled. The structure is loaded by two transverse forces in the middle. The verification example is based on the example introduced by Gensichen and Lumpe.
由四根倾斜杆件和一个竖向杆件组成的平面桁架,在上部节点处施加竖向力和与平面外的力。 Assuming the large deformation analysis and neglecting the self-weight, determine the normal forces of the members and the out-of-plane displacement of the upper node.
验算示例描述了作用在建筑物模型上多个风向的风荷载。 The model consists of eight cubes. The velocity fields obtained by the RWIND simulation are compared with the measured values from the experiment. The experimental data are measured using a thermistor anemometer in the wind tunnel.
验算示例描述了作用在建筑物地面墙壁上的压力荷载。 The buildings are simplified to rectangular objects and scaled down while maintaining the elevation ratios. The pressure distribution on the walls of the model of a medium-high building was conducted by an experiment. The chosen results (pressure coefficient Cp) are compared with the measured values.
验算示例描述了城市街道中的高层建筑周围流动(按比例模型)。 The example is given by the Architectural Institute of Japan (AIJ). The chosen results (velocity magnitude) are compared with the measured values.
This verification example compares wind load calculations on a duopitch roof building using the ASCE 7-16 standard and using CFD simulation in RWIND Simulation. 该模型根据规范 ASCE 7-16 进行定义的。
This verification example compares wind load calculations on a flat roof building using the ASCE 7-16 standard and using CFD simulation in RWIND Simulation. 该模型根据规范 ASCE 7-16 进行定义的。
一个球面上有均匀的粘性流体流。 The velocity of the fluid is considered at infinity. The goal is to determine the drag force. The parameters of the problem are set so that the Reynolds number is small and the radius of the sphere is also small, thus the theoretical solution can be reached - Stokes flow (G. G. Stokes 1851).
在验算示例中比较了使用规范 EN 1991-1-4 和使用 RWIND Simulation 中的 CFD 模拟对双坡屋顶建筑物的风荷载进行计算。 The building is defined according to the sketch, and the inflow velocity profile is taken according to the standard EN 1991-1-4.
在验算示例中比较了欧洲规范EN 1991-1-4和使用RWIND Simulation中的CFD模拟计算一栋平屋面建筑物的风荷载。 The building is defined according to the sketch, and the inflow velocity profile is taken according to the standard EN 1991-1-4.
在两个同心圆柱体的两个半径半径之间的各向同性预应力拉伸膜,该预应力位于一个不与竖轴平行的平面上。 Find the final minimum shape of the membrane - the helicoid - and determine the surface area of the resulting membrane. The add-on module RF-FORM-FINDING is used for this purpose. Elastic deformations are neglected both in RF-FORM-FINDING and in the analytical solution; self-weight is also neglected in this example.
该验算示例是基于验算示例 0122 编写的. A single-mass system without damping is subjected to an axial loading force. An ideal elastic-plastic material with characteristics is assumed. Determine the time course of the end-point deflection, velocity, and acceleration.
圆柱形膜结构通过各向同性预应力被拉伸。 Find the final minimal shape of the membrane - catenoid. Determine the maximum radial deflection of the membrane. The add-on module RF-FORM-FINDING is used for this purpose. Elastic deformations are neglected both in RF-FORM-FINDING and in the analytical solution; self-weight is also neglected in this example.
一个对称的浅结构结构,由八个相同的桁架构件组成,这些桁架嵌在铰支座中。 The structure is loaded by a concentrated force and alternatively by imposed nodal deformation over the critical limit point when the snap-through occurs. Imposed nodal deformation is used in RFEM 5 and RSTAB 8 to obtain the full equilibrium path of the snap-through. The self-weight is neglected in this example. Determine the relationship between the actual loading force and the deflection, considering large deformation analysis. Evaluate the load factor at the given deflections.
绳索上的施加荷载都为均匀荷载。 This causes the deformed shape in the form of the circular segment. Determine the equilibrium force of the cable to obtain the given sag of the cable. The add-on module RF-FORM-FINDING is used for this purpose. Elastic deformations are neglected both in RF-FORM-FINDING and in the analytical solution; self-weight is also neglected in this example.
球形球形膜充满压力和体积(这些值仅用于有限元模型定义)的气体。 Determine the overpressure inside the balloon due to the given isotropic membrane prestress. The add-on module RF-FORM-FINDING is used for this purpose. Elastic deformations are neglected both in RF-FORM-FINDING and in the analytical solution; self-weight is also neglected in this example.
该结构由四个桁架杆件组成,桁架铰接。 The structure is loaded by a concentrated force and alternatively by imposed nodal deformation over the critical limit point, when snap-through occurs. Imposed nodal deformation is used in RFEM 5 and RSTAB 8 to obtain the full equilibrium path of the snap-through. The self-weight is neglected in this example. Determine the relationship between the actual loading force and the deflection, considering large deformation analysis. Evaluate the load factor at given deflections.