一个钢悬臂梁,具有矩形截面,一侧完全固定,另一侧自由。 The aim of this verification example is to determine the natural frequencies of the structure.
双质量振型由两个线性弹簧和质量点组成,这些弹簧和质量集中在节点处。 The self-weight of the springs is neglected. Determine the natural frequencies of the system.
矩形钢板 实现边缘简支。 Determine the natural frequencies of the rectangular plate.
双质量系统由两个轴和两个质量组成,它们的质量是在一定距离处的集中质量,这些质量和惯性矩作为节点质量。 The left shaft is fixed, and the right mass is free. Neglecting the self‑weight of the shafts, determine the torsional natural frequencies of the system.
圆形薄膜由线力张拉。 Determine the natural frequencies of the circular membrane.
平面桁架结构为简支结构。 The aim of this verification example is to determine the natural frequencies of the structure.
左端支承一个 I 形截面的悬臂梁,图中显示了扭矩荷载。 The aim of this example is to compare the fixed support with the fork support and to investigate the behavior of some representative quantities. Comparison is also made to the solution by means of plates. Small deformations are considered, and the self-weight is neglected. Determine the rotation in the midpoint of the cantilever, and in case of the member entity with warping, determine the values of the primary torsional moment, the secondary torsional moment, and the warping moment both on the left end (point A) and the right end (point B).
矩形膜面由线力张拉。 Determine the natural frequencies of the given membrane.
通过周期函数对悬臂梁(SDOF 体系)进行时程分析。 Vertical deformations and accelerations calculated with direct integration and modal analysis in RF‑/DYNAM Pro - Forced Vibrations are compared with the analytical solution.
在给定的边界条件下,杆件受到扭矩和轴力。 Neglecting its self-weight, determine the beam's maximum torsional deformation as well as its inner torsional moment, defined as the sum of a primary torsional moment and torsional moment caused by the normal force. Provide a comparison of those values while assuming or neglecting the influence of the normal force. The verification example is based on the example introduced by Gensichen and Lumpe.
用夹具夹住一块圆形钢板。 Determine the natural frequencies of the circular plate.
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.
一栋两层单跨框架结构处于地震作用下。 The modulus of elasticity and cross‑section of the frame beams are much larger than those of the columns, so the beams can be considered rigid. The elastic response spectrum is given by the standard SIA 261/1:2003. Neglecting self-weight and assuming the lumped masses are at the floor levels, determine the natural frequencies of the structure. For each frequency obtained, specify the standardized displacements of the floors as well as equivalent forces generated using the elastic response spectrum according to the standard SIA 261/1.2003.
验算示例由日本建筑协会(AIJ)提供, The chosen results (velocity magnitude) 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.
该类型的悬臂梁截面为矩形,在端部有一个质量块。 Furthermore, it is loaded by an axial force. Calculate the natural frequency of the structure. Neglect the self‑weight of the cantilever and consider the influence of the axial force for the stiffness modification.
该模型初始定义了一个具有间隙和两个弹簧的单质量系统的柔性体系。 Determine the natural oscillations of the system - deflection, velocity, and acceleration time course.
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.