Das Architectural Institute of Japan (AIJ) ha una revisione del benchmark Benchmark-Szenarien für Windsimulation vorgestellt. Der Nachfolgende Beitrag dreht sich dabei um den "Caso A - grattacielo con forma 2:1:1". Im Folgenden wird das beschriebene Szenario in RWIND2 nachgebildet und die Ergebnisse mit den simulierten und der experimentellen Resultate des AIJ verglichen.
L'esempio di verifica descrive i carichi di pressione sulle pareti di edifici in disposizione in tandem situati a livello del suolo. 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.
L'esempio di verifica descrive il flusso in stato stazionario attorno a un grattacielo in blocchi urbani (modello in scala). The example is given by the Architectural Institute of Japan (AIJ). The chosen results (velocity magnitude) are compared with the measured values.
L'esempio di verifica descrive il flusso in stato stazionario attorno a un edificio isolato (modello in scala).L'esempio è fornito dall'Architectural Institute of Japan (AIJ). The chosen results (velocity magnitude) are compared with the measured values.
Una membrana è tesa mediante precompressione isotropa tra due raggi di due cilindri concentrici che non giacciono in un piano parallelo all'asse verticale. 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.
Una struttura di copertura a guscio sotto carico di pressione è modellata dove i bordi diritti sono liberi, mentre sui bordi curvi le traslazioni y e z sono vincolate. Neglecting self‑weight, compute the maximum (absolute) vertical deflection, and compare the results with COMSOL Multiphysics 4.3.
Quattro colonne sono fissate nella parte inferiore e collegate da un blocco rigido nella parte superiore. The block is loaded by pressure and modeled by an elastic material with a high modulus of elasticity. The outer columns are modeled by linear elastic material and the inner columns by a stress-strain diagram with decaying dependence. Assuming only the small deformation theory and neglecting the structure's self-weight, determine its maximum deflection.
A cantilever beam with an I-beam cross-section of length L is defined. The beam has five mass points with masses m acting in the X-direction. Il peso proprio è trascurato. The frequencies, mode shapes, and equivalent loads of this 5-DOF system are analytically calculated and compared with the results from RSTAB and RFEM.