Finite element analysis-based winter-heating parallel jointed steel-structured greenhouse simulation method
A simulation method and finite element technology, applied in the field of simulation analysis, can solve problems such as difficulty and time, and achieve the effect of saving analysis time and improving analysis efficiency.
Inactive Publication Date: 2017-04-26
DALIAN UNIV OF TECH QINGDAO NEW ENERGY MATERIALS TECH RES INST CO LTD
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[0004] In order to solve the deficiencies of the prior art, the present invention proposes a finite element analysis-based simulation method for winter warm row steel structure greenhouses, which can directly and quickly analyze the stress and deformation conditions under multi-load combination conditions, and solve the current problems Finite element software analyzes the time, difficulty and efficiency problems faced by steel structure greenhouses
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] Such as figure 1 As shown, the finite element analysis-based simulation method for winter-heated steel structure greenhouses of the present invention comprises the following steps:
[0026] Step (1), establish a three-dimensional model of the steel structure greenhouse through three-dimensional software (such as Pro / e, CATIA, UG, etc.), and then import it into the finite element software, such as ANSYS WORKBENCH;
[0027] Step (2), defining the materia...
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The invention provides a finite element analysis-based winter-heating parallel jointed steel-structured greenhouse simulation method. The method comprises the following steps of (1) establishing a steel-structured greenhouse three-dimensional model through three-dimensional software, and inputting into finite element software; (2) defining greenhouse material attribute in the finite element software; (3) performing grid partitioning on the greenhouse three-dimensional model; (4) copying each analysis item into four duplicates, and enabling five analysis items to share the three-dimensional model, material attribute and grid data; (5) setting dead load, live load, wind load, snow load, earthquake load and boundary condition for each analysis item in sequence separately; (6) solving each analysis item separately and then adding design assistant; (7) adding working condition combination and working condition coefficients in the design assistant in batches; and (8) adding stress and a deformation result; and (9) checking a result. By adoption of the greenhouse simulation method, analysis time can be effectively reduced while analysis efficiency is improved.
Description
technical field [0001] The invention relates to the field of simulation analysis, in particular to a simulation method for winter-heating row steel structure greenhouses based on finite element analysis. Background technique [0002] The design of winter warm row steel structure greenhouses must comply with the "Code for Design of Steel Structures", and at the same time meet the operating conditions under the conditions of dead load, live load, wind load, snow load, and earthquake. According to the PKPM steel structure published by China Building Science and The structural technical conditions require that the greenhouse must meet the conditions of use under five loads and 56 combined working conditions. [0003] At this stage, the finite element analysis for the winter-heating row steel structure greenhouse is generally a combination of a group of working conditions and an analysis item, which takes a long time, is difficult and inefficient. Contents of the invention [...
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IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/23
Inventor 姜荣升刘勃刘善亮袁涛王士刚
Owner DALIAN UNIV OF TECH QINGDAO NEW ENERGY MATERIALS TECH RES INST CO LTD