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Photovoltaic spring and autumn greenhouse dynamic wind load analysis method

An analysis method and dynamic wind technology, applied in image data processing, special data processing applications, instruments, etc., can solve the problems of long analysis time, cumbersome modeling, and low efficiency, saving analysis time and improving analysis efficiency.

Inactive Publication Date: 2018-09-21
QINGDAO NEW ENERGY SOLUTIONS +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The photovoltaic spring and autumn shed is a new photovoltaic agricultural greenhouse developed according to market demand. It has the advantages of low cost and convenient installation, but the calculation of the structure of this type of greenhouse is more complicated.
The design of photovoltaic light steel herb sheds must comply with the "Code for Design of Steel Structures". According to the PKPM steel structure technical conditions issued by China Building Science and Technology, the greenhouses must meet the conditions of use under dynamic wind load conditions, that is, check the design of the sheds. The structural strength of the type under this working condition is usually checked by engineers and technicians at the current stage using PKPM software, which is cumbersome in modeling and difficult in model import. During the analysis process, the details of the connection and parts of the greenhouse cannot be checked carefully and quantified , compared with the use of ANSYS WORKBENCH module, the analysis of PKPM has the problems of long analysis time, high difficulty and low efficiency

Method used

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  • Photovoltaic spring and autumn greenhouse dynamic wind load analysis method
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  • Photovoltaic spring and autumn greenhouse dynamic wind load analysis method

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Experimental program
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Embodiment 1

[0031] A dynamic wind load analysis method for a photovoltaic spring and autumn shed, comprising the following steps:

[0032] (1) Based on the construction drawing of the photovoltaic spring and autumn shed, use Solid Works to build a three-dimensional geometric model and save it in STP format;

[0033] (2) The 3D geometric model in STP format is imported into the SPACECLAIM module of ANSYS workbench software;

[0034] (3) Based on the SPACECLAIM module, the overall surface of the greenhouse model is processed;

[0035] (4) In the Engineering Data module, define the material properties of the photovoltaic light steel herb shed according to the requirements of the engineering drawings;

[0036] (5) Decompose the photovoltaic spring and autumn shed into two parts: the bracket and the arch;

[0037] (6) Partial treatment of the greenhouse support; the thin-walled light steel part of the main body is treated with the middle surface, and then meshed; the light steel connection o...

Embodiment 2

[0048] This embodiment is except following feature, all the other are with embodiment 1;

[0049] The properties of the material in the step (4) are: Q235A, elastic modulus 2.12e+11Pa, Poisson's ratio 0.288, material yield strength 235MPa;

Embodiment 3

[0051] The properties of the material in the step (4) are: Q345, elastic modulus 2.06e+11Pa, Poisson's ratio 0.28, material yield strength 345MPa.

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Abstract

The present invention discloses a photovoltaic spring and autumn greenhouse dynamic wind load analysis method, which solves the problems of long analysis time, large difficulty and low efficiency of the current analysis method. The method comprises the following steps: three-dimensional modeling and importing, mid-surface extraction processing, definition of material attributes, mesh generation for greenhouse brackets and arches respectively, local processing on key concerned parts, mid-surface extraction processing on the lock block, beam processing of the arch, constraint of the degree of freedom, setting of load substeps, application of the wind pressure spectrum, and running the solution. According to the method disclosed by the present invention, the stress and deformation of the greenhouse can be accurately analyzed, the analysis time is saved, the analysis efficiency is improved, and the ability to meticulously and quantitatively check and calibrate the connection, the localityand other details of the greenhouse is ensured.

Description

technical field [0001] The patent of this invention provides a dynamic wind load analysis method for photovoltaic spring and autumn sheds based on ANSYS Workbench. Background technique [0002] Photovoltaic spring and autumn shed is a new type of photovoltaic agricultural greenhouse developed according to market demand. It has the advantages of low cost and convenient installation, but the calculation of the structure of this type of greenhouse is more complicated. The design of photovoltaic light steel herb sheds must comply with the "Code for Design of Steel Structures". According to the PKPM steel structure technical conditions issued by China Building Science and Technology, the greenhouses must meet the conditions of use under dynamic wind load conditions, that is, check the design of the sheds. The structural strength of the type under this working condition is usually checked by engineers and technicians at the current stage using PKPM software, which is cumbersome in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/20
CPCG06T17/20G06F30/23
Inventor 董筱王宝营吕秋红于洋刘崧崧姜荣升袁涛刘善亮何洪胜秦元明安志勇刘会来
Owner QINGDAO NEW ENERGY SOLUTIONS