Research On Mechanical Performance Of The Triangle Mesh Cylinder Mega-latticed Structure

The triangle mesh cylinder mega-latticed structure is a new type of mega-latticed structure whose lattice is a triangle. The combination of latticed composite member and spatial truss beam makes it possible that the substructure can contribute more to the overall stiffness.As the research object, the triangle mesh cylinder mega-latticed structure is analyzed of its static behavior by establishing the finite element model, which is based on the basic theory and method of modeling, appropriate element type and parameter. A variety of parameters, such as span, rise to span ratio, length to span ratio, width of truss beams, thickness of the substructure, section of the beam, etc, which affect the static behavior of the triangle mesh cylinder mega-latticed structure are analyzed.The stability of the triangle mesh cylinder mega-latticed structure is analyzed. By using the finite element analysis software like ANSYS, a variety of parameters, such as span, rise to span ratio, section of the beam, etc, which affect the stability of the triangle mesh cylinder mega-latticed structure are analyzed. By comparing the critical buckling load of the structure under half span load and full loads, the asymmetric load effects on the stability of the structure is analyzed.Modal analysis as the primary method, the seismic analysis of the triangle mesh cylinder mega-latticed structure is made. Then we get the dynamic characteristic of the triangle mesh cylinder mega-latticed structure under seismic loads. By using the finite element analysis software, a variety of parameters, such as rise to span ratio, length to span ratio, width of truss beams, etc, which affect the vibration characteristics of the triangle mesh cylinder mega-latticed structure are analyzed.