CN105844002A - LS-DYNA based method for optimally designing layout of storage tank area of chemical industry park - Google Patents
LS-DYNA based method for optimally designing layout of storage tank area of chemical industry park Download PDFInfo
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- CN105844002A CN105844002A CN201610161494.0A CN201610161494A CN105844002A CN 105844002 A CN105844002 A CN 105844002A CN 201610161494 A CN201610161494 A CN 201610161494A CN 105844002 A CN105844002 A CN 105844002A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F2111/06—Multi-objective optimisation, e.g. Pareto optimisation using simulated annealing [SA], ant colony algorithms or genetic algorithms [GA]
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Abstract
An LS-DYNA based method for optimally designing a layout of a storage tank area of a chemical industry park. The present invention relates to an LS-DYNA based method for optimally designing a layout of a storage tank area of a chemical industry park. An objective of the present invention is to solve the problems that the existing design method is poor and even unsuccessful in design, and basic materials may have expired, and actual on-site conditions have changes and the like. The method is specifically implemented according to the following steps: 1. defining a constraint condition of selecting a storage tank area of a chemical industry park as a model parameter of numerical simulation, and then generating a keyword k file; 2. inputting the keyword k file into LS-DYNA software to perform resolution so as to obtain a d3plot result file; 3. obtaining a breakage effect value of a whole explosion course; and 4. obtaining a layout manner with a smallest breakage effect value of the whole explosion course of the storage tank area, so as to obtain an optimized design scheme. The method provided by the present invention is applied to the field of layout optimization of the storage tank area of the chemical industry park.
Description
Technical field
The present invention relates to based on the LS-DYNA method to tank area, chemical industrial park layout optimization design.
Background technology
Tank area is exactly the storage tank region being made up of one or several industrial storage tanks, when there is explosion accident, and stronger energy
Amount discharges or produces strong shock wave and gas bubble pulsation effectiveness, easily makes the building of personnel, equipment and the periphery in region
Become destructive injury.And there is energy and shock wave produced by confined explosion in the tank area of multiple storage tank composition, it is likely that
Cause catastrophic domino accident chain effect, cause larger range of blast and loss.Therefore, the layout of tank area sets
Meter to be adjusted according to changing factors such as the size of tank area storage tank, quantity, media types, improper causes certain if designed
Individual link breaks down, and may cause huge casualties and property loss time serious, and result is hardly imaginable.
In recent years, chemical industry obtains significant progress, and the design of tank area, chemical industrial park is that the chemical enterprise construction period can not
Or the part lacked.Country would generally use GB50160-2008 " petrochemical industry enterprise for the layout designs of chemical industry tank area
Industry design fire safety rules ", GB50016-2014 " Code for fire protection design of buildings ", GB 50011-2010 " Seismic Design of Building advise
Model ", GB50351-2005 " tank area fire wall design specification ", GB50010-2010 " Code for design of concrete structures " etc.
A series of relevant criterion.And current tank area layout designs there is also and plans unreasonable, dependence field experience, waste resource
Etc. problem, cause the design of these methods the best, the most failed.
The existing tank area placement scheme according to national standard design is likely encountered that basic material is expired, actual field situation occurs
The problems such as change.At present, in the practice of layout designs in tank area, chemical industrial park, pursue optimized design be researcher not
The pursuit of slack effort and target.
Summary of the invention
The invention aims to solve the design of existing method for designing the best, even failure and be likely encountered basic material
There are the problems such as change in expired, actual field situation, and proposes a kind of excellent to tank area, chemical industrial park layout based on LS-DYNA
The method changing design.
Above-mentioned goal of the invention is achieved through the following technical solutions:
Step one, choose the tank area, the chemical industrial park prototype as numerical simulation, choosing tank area, chemical industrial park constraints
Being defined as the model parameter of numerical simulation, afterwards Hypermesh Software Create keyword k file, keyword k file comprises
Tank area parametric modeling order；
Step 2, the tank area parametric modeling order input LS-DYNA software comprised by keyword k file solve,
D3plot destination file is obtained through numerical simulation calculation；
Step 3, utilize LS-DYNA preprocessor that the d3plot destination file obtained is carried out post processing, obtain superpressure-time
Journey, equivalent stress, displacement data figure, by superpressure-time-histories, equivalent stress, displacement data figure, according to superpressure-time-histories, equivalence
Stress, displacement data figure, by superpressure-time-histories, equivalent stress, displacement data figure, obtain tank area, chemical industrial park complete in blast
The damage effect value of journey, the damage effect value of blast whole process is object function；
Step 4, the model parameter value of adjustment numerical simulation, repetition step one is to three, and the tank area after being adjusted is in blast
Omnidistance damage effect value；Model parameter that optimizing model logarithm value simulates and object function is utilized to repeat parameters optimization
Evaluating, in evaluation emulation, tank area is in the damage effect value of blast whole process, until tank area is the destruction of blast whole process in Fang Zhen
Effect value is minimum, and during omnidistance damage effect value minimum, object function is minimum；Obtain the damage effect value that tank area blast is omnidistance
Minimum layout type, and then obtain optimized design scheme.
Invention effect
LS-DYNA is the most foremost a universal display Dynamic Analysis Software, and it is widely used for processing non-linear asking
Topic, the problem such as nonlinear organization hydrodynamic impact problem, fluid mechanics problem, fluid structurecoupling problem and heat transfer, can be to chemical industry
The challenge of tank area, garden layout is simulated emulation, and it is constantly modified changing by the change arranged by parameter
Enter, obtain optimized design, according to the layout designs of the tank area, chemical industrial park that simulation result optimizes, at tradition cloth
On the basis of office's design, help solution planning is unreasonable, rely on field experience, the problem of waste resource, it is achieved sustained improvement.
ANSYS software is a large-scale, the general finite that can be used to analytical structure, fluid, electromagnetic field, sound field, coupled field etc.
Meta-analysis software, mainly includes pre-treatment, computational analysis, post processing these three module.Can be high by numerical simulation analysis
There is the most complex scenarios of explosion time in degree reduction tank area, chemical industrial park, provides more preferable layout optimization to set for tank area, chemical industrial park
Meter method.
Accompanying drawing explanation
Fig. 1 is LS-DYNA simulation process schematic flow sheet in the present invention；
Fig. 2 is optimization design cycle schematic diagram in the present invention；
Fig. 3 is topological simplicity model in tank area in the present invention.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1, Fig. 2, Fig. 3 and present embodiment is described, the one of present embodiment based on
The LS-DYNA method to tank area, chemical industrial park layout optimization design, specifically prepares according to following steps:
Step one, choose the tank area, the chemical industrial park prototype as numerical simulation, choosing tank area, chemical industrial park constraints
Being defined as the model parameter of numerical simulation, afterwards Hypermesh Software Create keyword k file, keyword k file comprises
Tank area parametric modeling order；
Step 2, the tank area parametric modeling order input LS-DYNA software comprised by keyword k file solve,
D3plot destination file is obtained through numerical simulation calculation；
Step 3, utilize LS-DYNA preprocessor that the d3plot destination file obtained is carried out post processing, obtain superpressure-time
Journey, equivalent stress, displacement data figure, by superpressure-time-histories, equivalent stress, displacement data figure, according to superpressure-time-histories, equivalence
Stress, displacement data figure, by superpressure-time-histories, equivalent stress, displacement data figure, obtain tank area, chemical industrial park complete in blast
The damage effect value of journey, the damage effect value of blast whole process is object function；
Step 4, the model parameter value of adjustment numerical simulation, repetition step one is to three, and the tank area after being adjusted is in blast
Omnidistance damage effect value；Model parameter that optimizing model logarithm value simulates and object function (optimization aim) is utilized to repeat
Being optimized parameter evaluation, in evaluation emulation, tank area is in the damage effect value of blast whole process, until tank area is quick-fried in Fang Zhen
Fried omnidistance damage effect value is minimum, and during omnidistance damage effect value minimum, object function is minimum；Obtain tank area blast whole process
The minimum layout type of damage effect value, and then obtain optimized design scheme.
Detailed description of the invention two: present embodiment is unlike detailed description of the invention one: chemical industrial park storage tank described in step one
District's constraints be tank area size, storage tank size, tank material, storage tank medium, explosive source energy, tank spacing from and
Position relatively.
Other step and parameter are identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment is unlike detailed description of the invention one or two: chemical industrial park described in step 3
Tank area includes the damage effect value of tank area, chemical industrial park explosion time for the first time in the damage effect value that blast is omnidistance and causes two
The damage effect value of the domino chain effect that secondary blast causes.
Other step and parameter are identical with detailed description of the invention one or two.
Detailed description of the invention four: present embodiment is unlike one of detailed description of the invention one to three: described in step 3
LS-DYNA preprocessor is Ls-prepost.
Other step and parameter are identical with one of detailed description of the invention one to three.
Detailed description of the invention five: present embodiment is unlike one of detailed description of the invention one to four: choose described in step one
Tank area, chemical industrial park, as the prototype of numerical simulation, is defined as numerical simulation choosing tank area, chemical industrial park constraints
Model parameter, detailed process is:
Choose the tank area, the chemical industrial park prototype as numerical simulation, utilize the parametric modeling function handle of Hypermesh software
Choose tank area, chemical industrial park constraints and be defined as the model parameter of numerical simulation.
Other step and parameter are identical with one of detailed description of the invention one to four.
Claims (5)
1. one kind based on the LS-DYNA method to tank area, chemical industrial park layout optimization design, it is characterised in that a kind of based on
The method of tank area, chemical industrial park layout optimization design is specifically followed the steps below by LS-DYNA:
Step one, choose the tank area, the chemical industrial park prototype as numerical simulation, fixed choosing tank area, chemical industrial park constraints
Justice is the model parameter of numerical simulation, Hypermesh Software Create keyword k file afterwards, and keyword k file comprises storage tank
District's parametric modeling order；
Step 2, the tank area parametric modeling order input LS-DYNA software comprised by keyword k file solve,
D3plot destination file is obtained through numerical simulation calculation；
Step 3, utilize LS-DYNA preprocessor that the d3plot destination file obtained is carried out post processing, obtain superpressure-time
Journey, equivalent stress, displacement data figure, by superpressure-time-histories, equivalent stress, displacement data figure；According to superpressure-time-histories, equivalence
Stress, displacement data figure, by superpressure-time-histories, equivalent stress, displacement data figure, obtain tank area, chemical industrial park complete in blast
The damage effect value of journey, the damage effect value of blast whole process is object function；
Step 4, the model parameter value of adjustment numerical simulation, repetition step one is to three, and the tank area after being adjusted is complete in blast
The damage effect value of journey；Model parameter that optimizing model logarithm value simulates and object function is utilized to repeat parameters optimization and comment
Valency, evaluates the tank area damage effect value in blast whole process, until tank area is minimum in the damage effect value that blast is omnidistance in Fang Zhen,
During omnidistance damage effect value minimum, object function is minimum, obtains the layout side that blast omnidistance damage effect value in tank area is minimum
Formula, and then obtain optimized design scheme.
A kind of method based on LS-DYNA to tank area, chemical industrial park layout optimization design the most according to claim 1,
It is characterized in that tank area, chemical industrial park constraints described in step one is tank area size, storage tank size, tank material, storage tank
Medium, explosive source energy, tank spacing from and relative position.
A kind of method based on LS-DYNA to tank area, chemical industrial park layout optimization design the most according to claim 2,
It is characterized in that tank area, chemical industrial park described in step 3 includes tank area, chemical industrial park first in the damage effect value that blast is omnidistance
The damage effect value of the domino chain effect that the damage effect value of secondary explosion time and initiation subsequent explosion cause.
A kind of method based on LS-DYNA to tank area, chemical industrial park layout optimization design the most according to claim 3,
It is characterized in that LS-DYNA preprocessor described in step 3 is Ls-prepost.
A kind of method based on LS-DYNA to tank area, chemical industrial park layout optimization design the most according to claim 4,
It is characterized in that the prototype choosing tank area, chemical industrial park described in step one as numerical simulation, choosing tank area, chemical industrial park about
Bundle conditional definition is the model parameter of numerical simulation, and detailed process is:
Choose the tank area, the chemical industrial park prototype as numerical simulation, utilize the parametric modeling function of Hypermesh software choosing
Take tank area, chemical industrial park constraints and be defined as the model parameter of numerical simulation.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106599458A (en) * | 2016-12-13 | 2017-04-26 | 国家超级计算天津中心 | Tianhe supercomputer-based city explosion damage effect assessment method |
| CN109086914A (en) * | 2018-07-12 | 2018-12-25 | 杭州电子科技大学 | Harmful influence vehicle path planning modeling method based on dynamic domino risk |
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| CN103366057A (en) * | 2013-07-05 | 2013-10-23 | 交通运输部天津水运工程科学研究所 | Method for dynamically grading major hazard sources of liquid chemicals in storage tank region of petrochemical wharf |
| JP5760117B1 (en) * | 2014-04-16 | 2015-08-05 | 麗鴻科技股▲ふん▼有限公司 | LED explosion-proof lamp |
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2016
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Patent Citations (3)
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| CN102903013A (en) * | 2012-08-06 | 2013-01-30 | 华南理工大学 | Risk analysis and layout optimization system for chemical industry park |
| CN103366057A (en) * | 2013-07-05 | 2013-10-23 | 交通运输部天津水运工程科学研究所 | Method for dynamically grading major hazard sources of liquid chemicals in storage tank region of petrochemical wharf |
| JP5760117B1 (en) * | 2014-04-16 | 2015-08-05 | 麗鴻科技股▲ふん▼有限公司 | LED explosion-proof lamp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106599458A (en) * | 2016-12-13 | 2017-04-26 | 国家超级计算天津中心 | Tianhe supercomputer-based city explosion damage effect assessment method |
| CN109086914A (en) * | 2018-07-12 | 2018-12-25 | 杭州电子科技大学 | Harmful influence vehicle path planning modeling method based on dynamic domino risk |
| CN109086914B (en) * | 2018-07-12 | 2022-03-25 | 杭州电子科技大学 | Hazardous chemical substance vehicle path planning modeling method based on dynamic domino risk |
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