The Simulation of the Solicitations to which Greenhouses Located on Rooftops are Subjected Based on Modeling with the Finite Element Method

Abstract

The paper presents the work algorithm and results obtained by simulation of the solicitation on greenhouses, located on urban building rooftops. The simulation was performed by modeling with the finite element method and using the ANSYS 15.0 software. For the greenhouse analysis adopted model the tetrahedral finite element is considered, after discrediting yielding 257 826 finite elements and 48559 nodes. The analysis was carried out for values of wind speed of: 10; 15; 20; 25; 27.5 and 30 m/s, separately for actions on the frontal and lateral directions of the greenhouse. The air flow across the surfaces of greenhouses and the variation of thrust and lift forces as well as the overturning moment of the greenhouse, depending on specified wind speeds are presented.