CN106599458A - Tianhe supercomputer-based city explosion damage effect assessment method - Google Patents
Tianhe supercomputer-based city explosion damage effect assessment method Download PDFInfo
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Abstract
The invention relates to the technical field of explosion damage assessment, in particular to a Tianhe supercomputer-based city explosion damage effect assessment method. The method comprises the steps of extracting typical analysis characteristics of city buildings through a BIM; establishing and solving a setting rule according to a simulation model; developing modeling and solving display programs on a simulation software platform and a Tianhe supercomputer platform; realizing automatic simulation model building, solving calculation and display function customization; and realizing city explosion damage effect assessment. According to the method, large-scale and high-precision multi-task parallel calculation of the complex simulation model can be performed based on a Tianhe-1 supercomputer, so that the calculation cycle is shortened; by virtue of the BIM, accurate city geometric information can be quickly extracted, and a corresponding geometric model is generated according to analysis needs; and based on this, a simulation solving model is automatically built according to the analysis needs, and corresponding software and hardware resources are matched, so that the time for adjusting the model by personnel is shortened and relatively good calculation configuration is achieved.
Description
Technical field
The present invention relates to explosive damage assessment technology field, and in particular to a kind of city based on Milky Way supercomputer is quick-fried
Demolition hinders effect evaluation method.
Background technology
Number supercomputer of the Milky Way is first petaflops supercomputer of China, in November, 2010 World super meter
The first in the world is ranked in calculation machine TOP500 rankings, the comprehensive technical level for indicating China's independent development supercomputer enters entry to WTO
The leading ranks in boundary.The development of BIM (BIM) technology so that accurate, accurately record builds a building and city is built
The information of building is possibly realized, and various applications, construction simulation, operation maintenance, virtual roaming etc. can be carried out on its basis.Mesh
It is front that Milky Way BIM cloud systems have been deployed on Milky Way supercomputing platform, carry out related development and the application in BIM fields.It is quick-fried
Fried analysis includes four contents, i.e. explosive detonation, the production of explosive load and propagation, fluid structurecoupling and structural response, if
Needs complete to calculate four contents, then need the whole calculation process for calculating and including whole；If only focusing on the response of structure,
Then blast pressure-time-histories load is loaded directly in structure, or is aided with the method for amendment and calculated.Different software and
Computational methods can all have corresponding solution scheme for said process.At present in terms of blast damage effectiveness evaluation, mainly have with
Lower deficiency：1) due to the restriction of soft hardware equipment, major part injure evaluation calculation scale it is generally less than normal, model has been carried out larger
The simplification of degree, evaluation of result reliability is low；2) blast of architecture ensemble is calculated, and is related to computation structure more and complexity, institute
It is more the modeling of roughening with Practical Calculation, the method for similar heap building blocks sets up building model, and details considers less；3) tradition
Calculating, need artificial constantly adjustment model, the model for being formed without imitating to set up specification；4) solution of automation is not formed
Arrange so that in sinking into the complicated work of model solution.
The content of the invention
The problems referred to above are directed to, the present invention is mainly focused on following purpose：
1) by the solution ability that number supercomputer of the Milky Way is powerful, particularly extraordinary competent ultra-large numerical model is asked
The ability of solution, in being applied to urban explosion occurrence situation analytical calculation, can accelerate for urban planning or construction safety
Decision-making.
2) realize that fine, accurate city model is built, the roughening before reducing inaccurately is modeled.
3) according to the simulation model modeling specification set up, automatic modeling is realized, reduces artificial repeated work dry with artificial
In advance.
4) implementation model automatic calculation is arranged, and is solved and is arranged regularization, is reached and is calculated optimum software and hardware configuration, without the need for every
Secondary all measuring and calculations configuration.
For achieving the above object, the present invention provides following technical scheme：A kind of city based on Milky Way supercomputer is quick-fried
Demolition hinders effect evaluation method, and by BIM model extraction City Building canonical analysis features, experiential simulation model is taken
Setting rule is built and solves, exploitation modeling and solution presentation program, real in simulation Software Platform and Milky Way supercomputing platform
Now automatic simulation model is built, solves calculating and show customizing functions, quickly and easily realizes that urban explosion damage effect is commented
Estimate.
This appraisal procedure when in use, has specific default setting, and several key parameters need to be arranged during calculating, transfers to comment
Estimate method automatically to complete model buildings, solve calculating, show, if necessary can also manual intervention.
Above-mentioned appraisal procedure is comprised the following steps：
1) BIM models characteristic feature is extracted：
According to analysis purpose and needs, extraction and analysis characteristics of objects size and relative position relation；
2) simulation model for customizing builds function：
According to the characteristic size extracted, on the basis of architectural drawing and simulation calculation principle is fully understood, using under
And on method draw successively draw point, line, surface, body, ultimately form the geometrical model suitable for simulation calculation；Also can build by hand
Vertical geometrical model；
According to analysis purpose and needs, determine the explosion analysis stage, have unobstructed reflection, near field or far field, precision, in front and back
Process friendly interface degree, mesh quality requirement etc. and distinguish content, the software for calculation and correspondence solution side according to above-mentioned selected analysis
Method；
On the basis of above-mentioned geometry, adapt to emulate according to, to the requirement of grid, generating in software for calculation and interface
Calculate the building grid and fluid grid (different according to analysis means, selectively to generate fluid grid) for needing；Acquiescence base
This mess generation is arranged, and according to analysis focus respective selection can be adjusted, and reaches the purpose of refinement region-of-interest grid, and
Finally selectively realize that part is of coupled connections；
According to software for calculation and method for solving, blast is set and calculates Parameters in Mathematical Model：By selecting to make in default material storehouse
Material properties and failure criteria, and fire point and TNT equivalents are set in specified explosion site；For calculating four ranks of blast
The method of section, needs the parameter for arranging fluid structurecoupling；Method for fire point is located away from, can adopt one-dimensional result of calculation
Mapping techniques are saving the calculating time；For the method for simply computation structure response, superpressure curve can be loaded.
Above-mentioned several steps are solidified by simulation Software Platform exploitation, formation can be directed to multiple softwares, multiple methods
The model of optimization generates scheme；By above-mentioned several steps, generate computation model and subsequently calculated；
3) simulation model for customizing solves function：
Systemic, multifactorial efficiency and money are carried out by the simulation software to being deployed on number supercomputer of the Milky Way
Test is expended in source, sums up different software and module, the optimum hardware resource arrangement proportioning of different model calculation scales, builds accordingly
Vertical number supercomputer resource deployment scheme of the Milky Way for simulation software；
On the basis of such scheme, exploitation simulation model solves setting program, embeds hardware resource deployment scheme, coordinates day
River supercomputer scheduling system, starts software and distributes optimal hardware resource, is automatically obtained simulation model and solves function.
4) through above step, Numerical Simulation Results are obtained, it is possible to achieve predefined view result shows, due to knot
The demand degree that fruit shows is different, can also take manual mode to make bandwagon effect.Shock wave can be recorded in simulation result
Action intensity, checks damage effectiveness of the analysis object under Explosion Loading, targetedly carries out protecting planning with correlation
Structure design, is that urban planning and architectural design provide design considerations.
Compared with prior art, the invention has the beneficial effects as follows, a kind of urban explosion based on Milky Way supercomputer is ruined
Hinder effect evaluation method, be capable of achieving following Advantageous Effects：
1) based on number supercomputer of the Milky Way, extensive, high-precision complex simulation model multi-task parallel can be carried out
Calculate, shorten calculating cycle；
2) by means of BIM models, can the accurate city geological information of rapid extraction, according to analysis need generate it is corresponding several
What model；
3) on the basis of the geometrical model for generating, needed to set up emulation solving model automatically according to analysis, reduce personnel and adjust
The time of integral mould；
4) based on number supercomputer of the Milky Way and emulation solving model, according to explosion analysis type and purpose, calculating
The factors such as precision, number of grid, Auto-matching software for calculation and hardware resource, reach one and preferably configure.
Description of the drawings
Fig. 1 is that simulation model is injured in overall blast.
Fig. 2 is customs's building simulation model figure.
Fig. 3 is container simulation model figure.
Fig. 4 is local police station's simulation model figure.
Fig. 5 is positive pressure of shock wave figure.
Fig. 6 is container destruction figure.
Fig. 7 is customs's building destruction figure.
In figure, 1. demolition point, 2. container, 3. local police station, 4. freeway bridge, 5. automobile, 6. light rail station, 7. customs is big
Building, 8. air-shed, 9. wall, 10. glass, 11. floors, 12. pillars.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Using a kind of urban explosion Damage Effect Assessment method based on Milky Way supercomputer of the present invention, to occurring in day
The blast of Tianjin Binhai New District is simulated analysis and injures damage effect to surrounding building to assess to explode.
The explosion equivalent of Binhai New Area in Tianjin, official estimates 450 tons of TNT.As shown in figure 1, the periphery of demolition point 1 has container
2nd, it is one outside local police station 3, freeway bridge 4, automobile 5, light rail station 6, customs building 7 and air-shed 8, west side 500m to possess
BIM models industrial park.It is the geometrical model including multiple analysis objects set up in Fig. 1.The purpose of this explosion analysis point
Analysis includes damaged condition of the structures such as glass, wall, vehicle under Blast Shock, and concrete introduction is big with container and customs
Based on building.
1) Geometric Modeling：
According to the environment of demolition point periphery, the BIM model extraction typical characteristic sizes built using existing part, such as
Several angle points and window frame size positions of building, wall thickness, the thickness size of glass and position, the size of floor and thickness
Degree, pillar height and the parameter such as radius, the length of beam and radius.
2) simulation model is built：
According to the characteristic size from BIM model extractions, model is injured in the overall blast for setting up Fig. 1, without BIM models
Container and Viaduct Structure, using measurement method obtain relevant parameter；There is open vehicle simulation model in addition, so
This blast appraisal procedure can directly be read in.
The four-stage of explosion analysis, this analysis is directed to.For the container that demolition point is nearby stacked, such as Fig. 3
It is shown, need to calculate from the beginning of blast, the propagation of explosive load, in terms of fluid structurecoupling and structural response four, and be near field,
Heel row container is blocked, and requires that selection carries out simulation analysis with simulation software LS-DYNA according to this calculating；For distant place
Customs building, as shown in Fig. 2 block without high-rise between demolition point, and intermediate distance 800m, if setting up spatial domain
Analysis, air-grid can take most of computing resource, so using the positive pressure of shock wave time-histories calculated at customs building
Curve, the computational methods being loaded in structure are simulated from ABAQUS software for calculation.Other analysis objects also use similar approach
Obtain using software accordingly.
With reference to the accompanying drawings 3 and accompanying drawing 4, when calculating container, local police station, using the computational methods of fluid structurecoupling, thus from
Also need to generate air-shed grid outside body grid；Customs building using being loaded directly into by the way of shock wave punching press time-history curves,
So without generating air-shed grid, only generating each structured grid of building itself.Contact in region-of-interest such as beam column and floor
Region, appropriate refined net, and the connection of join domain grid node is realized, to transmit calculating data.
After container and customs's building simulation calculating are respectively adopted two softwares of LS-DYNA and ABAQUS, according to
The material depot of foundation, gives material properties and failure principle to all parts respectively.In the calculating of container, fire point is set
Coordinate, and the attribute of TNT is given by the air-shed unit of certain volume, the fluid structurecoupling of air-shed and container is set in addition,
Realize that explosimeter counts the transmission of evidence；At customs building, due to loading superpressure time-history curves, so detonation need not be arranged
Point, as long as given TNT and the relative distance apart from customs building.
Other analysis objects can complete the making of simulation model using similar method.
3) solve and arrange
For with two softwares of LS-DYNA and ABAQUS, through multifactorial system testing, obtain the two softwares different
Efficiency on number supercomputer node of the Milky Way of module and different calculation scales and take resource comparison, summarize these surveys
Test result, obtains how doing the resource deployment scheme of optimum for model.
When exploitation emulation solves setting program, above-mentioned resource deployment scheme is needed to refer to, and coordinate the scheduling system of the Milky Way
System development interface in case can start at any time software and distribution resource, complete simulation model calculating.
4) simulation result shows
Simulation model is calculated after finishing, and can realize that predefined view result is extracted by post-processing interface.Due to not
Have different focus with personnel, its can also operation interface select output view.It is soft by LS-DYNA and ABAQUS two
Part, it can be observed that the response that shock wave punching press value and structure itself occur, container structure has been sent out under shock wave
Raw damage, the glass and part metope in customs building are damaged.According further to superpressure value and it is aided with superpressure to body effect's
Table, can obtain the extent of injury to human body of exploding.Picture concerned shows, referring to the drawings 5, accompanying drawing 6 and accompanying drawing 7.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (5)
1. a kind of urban explosion Damage Effect Assessment method based on Milky Way supercomputer, it is characterised in that the appraisal procedure
Comprise the following steps：
A, BIM model characteristic feature is extracted：
According to analysis purpose and needs, extraction and analysis characteristics of objects size and relative position relation；
B, the simulation model for customizing build function：
According to the characteristic size extracted, on the basis of architectural drawing and simulation calculation principle is fully understood, using from bottom to top
Method draw successively draw point, line, surface, body, ultimately form the geometrical model suitable for simulation calculation；
According to analysis purpose and needs, determine the explosion analysis stage, have unobstructed reflection, near field or far field, precision, process in front and back
The differentiation content that friendly interface degree, mesh quality are required, according to the software for calculation and correspondence method for solving of above-mentioned selected analysis；
On the basis of above-mentioned geometry, according to, to the requirement of grid, generation adapts to simulation calculation in software for calculation and interface
The building grid of needs and fluid grid；The basic mess generation of acquiescence is arranged, and can be adjusted accordingly according to analysis focus
Option, reaches the purpose of refinement region-of-interest grid, and finally selectively realizes that part is of coupled connections；
According to software for calculation and method for solving, blast is set and calculates Parameters in Mathematical Model：Used by selection in default material storehouse
Material properties and failure criteria, and fire point and TNT equivalents are set in specified explosion site；
Above-mentioned several steps are solidified by simulation Software Platform exploitation, formation can optimize for multiple softwares, multiple methods
Model generate scheme；By above-mentioned several steps, generate computation model and subsequently calculated；
C, the simulation model for customizing solve function：
Systemic, multifactorial efficiency is carried out by the simulation software to being deployed on Milky Way supercomputer and resource cost is surveyed
Examination, sums up different software and module, the optimum hardware resource arrangement proportioning of different model calculation scales, sets up accordingly for imitative
The Milky Way supercomputer resource deployment scheme of true software；
On the basis of such scheme, exploitation simulation model solves setting program, embeds hardware resource deployment scheme, coordinates the Milky Way to surpass
Level computer scheduling system, starts software and distributes optimal hardware resource, is automatically obtained simulation model and solves function.
D, through above step, obtain Numerical Simulation Results, realize that predefined view result shows.
2. the urban explosion Damage Effect Assessment method based on Milky Way supercomputer according to claim 1, its feature
It is in step B, can by hand to set up geometrical model.
3. the urban explosion Damage Effect Assessment method based on Milky Way supercomputer according to claim 1, its feature
It is that in step B, during blast calculating Parameters in Mathematical Model is arranged, the method to calculating blast four-stage will be arranged
The parameter of fluid structurecoupling；Method for fire point is located away from, will save calculating using one-dimensional result of calculation mapping techniques
Time；For the method for simply computation structure response, superpressure curve can be loaded.
4. the urban explosion Damage Effect Assessment method based on Milky Way supercomputer according to claim 1, its feature
It is in step B, with simulation software LS-DYNA simulation analysis to be carried out；Calculating is simulated with ABAQUS software for calculation.
5. the urban explosion Damage Effect Assessment method based on Milky Way supercomputer according to claim 1, its feature
It is in step D, manual mode can be taken to make bandwagon effect.
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| CN108763635A (en) * | 2018-04-19 | 2018-11-06 | 中国水产科学研究院渔业工程研究所 | A kind of three-dimensional grid separation analogue system and method based on text mining |
| CN110044290A (en) * | 2019-04-22 | 2019-07-23 | 哈尔滨工程大学 | A kind of warship explosion Damage recognition integrated form measuring instrument |
| CN110084888A (en) * | 2018-08-13 | 2019-08-02 | 北京法之运智慧消防科技有限公司 | A kind of method that BIM is shown |
| CN110955953A (en) * | 2019-07-25 | 2020-04-03 | 北京理工大学 | Method for evaluating damage of multiple kinds of explosive projectiles to building target based on structured grid |
| CN111027197A (en) * | 2019-12-03 | 2020-04-17 | 南方电网科学研究院有限责任公司 | Simulation analysis system and method for power equipment |
| CN113254382A (en) * | 2021-07-09 | 2021-08-13 | 国家超级计算天津中心 | Data processing system for constructing digital numerical value fusion device based on supercomputer |
| CN114912305A (en) * | 2022-03-18 | 2022-08-16 | 武汉理工大学 | Residual ultimate strength evaluation method based on ship structure damage morphology |
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| CN107577855A (en) * | 2017-08-25 | 2018-01-12 | 北京科技大学 | A kind of building spraying fire-extinguishing system disaster evaluation method based on BIM |
| CN107577855B (en) * | 2017-08-25 | 2019-10-18 | 北京科技大学 | A kind of building spraying fire-extinguishing system disaster evaluation method based on BIM |
| CN108763635A (en) * | 2018-04-19 | 2018-11-06 | 中国水产科学研究院渔业工程研究所 | A kind of three-dimensional grid separation analogue system and method based on text mining |
| CN108763635B (en) * | 2018-04-19 | 2019-03-19 | 中国水产科学研究院渔业工程研究所 | A kind of three-dimensional grid separation analogue system and method based on text mining |
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| CN110044290A (en) * | 2019-04-22 | 2019-07-23 | 哈尔滨工程大学 | A kind of warship explosion Damage recognition integrated form measuring instrument |
| CN110955953A (en) * | 2019-07-25 | 2020-04-03 | 北京理工大学 | Method for evaluating damage of multiple kinds of explosive projectiles to building target based on structured grid |
| CN111027197A (en) * | 2019-12-03 | 2020-04-17 | 南方电网科学研究院有限责任公司 | Simulation analysis system and method for power equipment |
| CN111027197B (en) * | 2019-12-03 | 2023-09-26 | 南方电网科学研究院有限责任公司 | Power equipment simulation analysis system and method |
| CN113254382A (en) * | 2021-07-09 | 2021-08-13 | 国家超级计算天津中心 | Data processing system for constructing digital numerical value fusion device based on supercomputer |
| CN114912305A (en) * | 2022-03-18 | 2022-08-16 | 武汉理工大学 | Residual ultimate strength evaluation method based on ship structure damage morphology |
| CN114912305B (en) * | 2022-03-18 | 2023-07-11 | 武汉理工大学 | Residual ultimate strength evaluation method based on ship structure damage morphology |
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