Structure fracture analysis method suitable for photovoltaic herb sheds

An analysis method and photovoltaic technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as structural failure, steel structure cracks, photovoltaic greenhouse collapse and economical problems, and achieve the effect of improving safety

Inactive Publication Date: 2018-08-31
QINGDAO NEW ENERGY SOLUTIONS +2
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Problems solved by technology

However, photovoltaic herb sheds are all in outdoor environments, and are mostly built in harsh environments with humidity, cold or strong winds. Under such conditions for a long time, the steel structure of photovoltaic herb sheds is prone to cracks due to corrosion, stress concentration

Method used

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  • Structure fracture analysis method suitable for photovoltaic herb sheds
  • Structure fracture analysis method suitable for photovoltaic herb sheds

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Embodiment Construction

[0019] see Figure 1-Figure 2 Shown, the technical scheme that this specific embodiment adopts is: it comprises the following steps:

[0020] (1) Establish the geometric model of the photovoltaic greenhouse through the 3D modeling software UG, save it as an STP format file, and then import it into the DESIGNMODELER module;

[0021] (2) Open the grid division for global analysis in the grid division software ANSYS MESHING;

[0022] (3) In the Static Structure module, the calculation load combination is calculated according to the building load code, and the global structural stress distribution of the photovoltaic herb shed is obtained;

[0023] (4) Then, the finite element sub-model technology is used for the connection parts of the components of the photovoltaic herb shed, and the connection parts of the components of the photovoltaic herb shed are finely modeled, saved as an STP format file, and then imported into the grid division software ANSYS MESHING for network analysi...

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Abstract

The invention discloses a structure fracture analysis method suitable for photovoltaic herb sheds, and relates to the technical field of photovoltaic herb sheds. The method comprises the following steps of: establishing a geometric model of a photovoltaic shed through three-dimensional modeling software UG, storing the geometric model as an STP-format file, and importing the STP-format file to a DESIGNMODELER module; opening meshing, carrying out global analysis, in meshing software ANSYS MESHING, carrying out mesh refinement on component connection parts such as welding, and bolt connection and geometric deformation components of the photovoltaic herb shed, wherein the meshing is carried out by adoption of a hexahedral element to the greatest extent, and the mesh size is in a range of 2-10mm; and carrying out load combination calculation in a Static Structure module according to a building load standard. By adoption of above technical scheme, the method has the beneficial effects of providing new calculation basis for design of existing photovoltaic herb shed steel structures, calculating stress intensity factors at connection positions of main components of the photovoltaic herbsheds, and judging weak positions of the photovoltaic herb sheds according to crack extension results.

Description

technical field [0001] The invention relates to the technical field of photovoltaic herb sheds, in particular to a structural fracture analysis method suitable for photovoltaic herb sheds. Background technique [0002] In the existing analysis and design methods of photovoltaic herb sheds, the material strength theory is used for structural design. However, photovoltaic herb sheds are all in outdoor environments, and are mostly built in harsh environments with humidity, cold or strong winds. Under such conditions for a long time, the steel structure of photovoltaic herb sheds is prone to cracks due to corrosion, stress concentration and other reasons. If the steel structure of the photovoltaic herb shed has cracks, it will further rapidly expand to the surrounding area and make the structure invalid. Under strong wind conditions, it will cause the overall collapse of the photovoltaic greenhouse and cause serious economic losses. Therefore, it is necessary to solve the probl...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23G06F2119/06Y02E60/00
Inventor 于涛王宝营李丹阳赵崇智于洋何洪胜秦元明安志勇刘会来
Owner QINGDAO NEW ENERGY SOLUTIONS
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