CN116452053B - Ship structure fire fighting capability comprehensive evaluation method based on three-parameter interval gray number - Google Patents
Ship structure fire fighting capability comprehensive evaluation method based on three-parameter interval gray number Download PDFInfo
- Publication number
- CN116452053B CN116452053B CN202310426862.XA CN202310426862A CN116452053B CN 116452053 B CN116452053 B CN 116452053B CN 202310426862 A CN202310426862 A CN 202310426862A CN 116452053 B CN116452053 B CN 116452053B
- Authority
- CN
- China
- Prior art keywords
- fire
- fire fighting
- ship structure
- positive
- parameter interval
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000011156 evaluation Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 claims abstract description 53
- 238000012163 sequencing technique Methods 0.000 claims abstract description 13
- 230000008520 organization Effects 0.000 claims abstract description 5
- 239000013598 vector Substances 0.000 claims description 21
- 239000011159 matrix material Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 4
- 238000010606 normalization Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 7
- 241001522301 Apogonichthyoides nigripinnis Species 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 4
- 244000309464 bull Species 0.000 abstract 1
- 230000002457 bidirectional effect Effects 0.000 description 6
- 238000004880 explosion Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000013210 evaluation model Methods 0.000 description 1
- 238000012854 evaluation process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012887 quadratic function Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G06Q10/06393—Score-carding, benchmarking or key performance indicator [KPI] analysis
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/26—Government or public services
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Landscapes
- Business, Economics & Management (AREA)
- Human Resources & Organizations (AREA)
- Engineering & Computer Science (AREA)
- Strategic Management (AREA)
- Educational Administration (AREA)
- Tourism & Hospitality (AREA)
- Economics (AREA)
- Development Economics (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Entrepreneurship & Innovation (AREA)
- Theoretical Computer Science (AREA)
- General Business, Economics & Management (AREA)
- Marketing (AREA)
- Operations Research (AREA)
- Quality & Reliability (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Ocean & Marine Engineering (AREA)
- Game Theory and Decision Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention relates to the technical field of fire fighting capability assessment, in particular to a ship structure fire fighting capability comprehensive assessment method based on three-parameter interval gray numbers, which comprises the following steps: establishing a fire fighting capacity evaluation index system of the ship structure, and normalizing; the organization expert group scores fire fighting capacity evaluation indexes of the ship structure, the given estimated value requirement is the ash number of a three-parameter interval, and the weight of each index is determined; calculating positive and negative bulls, positive and negative bulls-eye distances and positive and negative bulls-eye distances of fire fighting capability evaluation indexes of each ship structure; and sequencing the calculated closeness or consistency coefficient of the fire fighting capacity of each ship structure, wherein the sequencing result is the sequencing of the fire fighting capacity of the ship structure. The invention solves the problems of small sample and uncertain information faced by the current ship structure fire fighting capability assessment by utilizing the advantages of the ash number of the three-parameter interval in processing uncertain information on the basis of the ship structure fire fighting capability assessment index system.
Description
Technical Field
The invention relates to the technical field of fire fighting capability assessment, in particular to a ship structure fire fighting capability comprehensive assessment method based on three-parameter interval gray numbers.
Background
The ship vitality is the research on how to guarantee, maintain and recover the ship fight. The disasters suffered by ships as maritime combat tools or vehicles in the process of completing tasks are mainly from two categories, namely combat damages and accident disasters. Therefore, the fire and explosion protection capability of the ship is an important component of the ship's vitality. From the viewpoint of guaranteeing various disasters of 'prevention-limitation-elimination' of ship vitality, the fire-proof and explosion-proof capabilities of ships are fully considered in the design and construction period, so that the assessment of the fire-proof capabilities of ship structures is a key problem in the ship performance assessment research.
Although some studies have been made on the fire protection capability evaluation of ships, no systematic study has been made in terms of fire protection structure and fire protection equipment. In addition, as the disaster occurrence of the ship has uncertainty, and the fire and explosion prevention evaluation index often needs to be described by using a language value, and meanwhile, test data are difficult to obtain through tests on the fire and explosion prevention comprehensive capacity of the ship under the real disaster, the ambiguity of the language value and the lack of the real test data lead to the difficulty in realizing the comprehensive evaluation of the fire and explosion prevention capacity of the ship by the conventional evaluation method. In order to solve the difficulties of small sample and uncertain information faced by the current ship structure fire fighting capability assessment, we provide a ship structure fire fighting capability comprehensive assessment method based on three-parameter interval gray numbers.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides the comprehensive fire fighting capability evaluation method for the ship structure based on the three-parameter interval gray number, and the problems of small sample and uncertain information faced by the current ship structure fire fighting capability evaluation are solved by utilizing the advantages of the three-parameter interval gray number in the aspect of processing uncertain information on the basis of the ship structure fire fighting capability evaluation index system.
The invention provides the following technical scheme: the ship structure fire fighting capacity comprehensive evaluation method based on the three-parameter interval gray number comprises the following steps:
s1, establishing a fire-fighting capacity evaluation index system of a ship structure, and normalizing a three-parameter interval gray number evaluation matrix of fire-fighting capacity indexes of each ship structure by adopting a normalization method to obtain a normalized decision matrix;
S2, scoring fire fighting capability evaluation indexes of the ship structure by an organization expert group, wherein the given evaluation value requirement is a three-parameter interval gray number, and determining each index weight;
S3, calculating positive and negative targets, positive and negative target distances and positive and negative target distances of fire fighting capacity evaluation indexes of the ship structures based on three-parameter interval gray number base knowledge;
S4, sequencing the closeness or consistency coefficient of the fire fighting capacity of each ship structure calculated by using the two-way projection method as a reference, wherein the sequencing result is the sequencing of the fire fighting capacity of the ship structure.
Preferably, the indexes of the fire-fighting capability evaluation index system of the ship structure in the step S1 include a fireproof structure C 1, a fire alarm capability C 2, a fire extinguishing system C 3 and a portable fire extinguishing apparatus C 4.
Preferably, the fireproof structure C 1 is used as a first-level index, and the second-level index comprises a second-level index for controlling ventilation and heat source C 11 of combustible substances, dividing fireproof areas C 12 and adopting C 13 of nonflammable materials;
The fire alarm capacity C 2 is used as a primary index, and the secondary indexes comprise a fire detection system C 21, a fire alarm system C 22 and a fire extinguishing system starting alarm system C 23;
The fire extinguishing system C 3 is used as a first-level index, and the second-level index comprises a whole ship fire extinguishing system C 31, an ammunition cabin and jet fuel cabin fireproof system C 32 and a power device cabin fireproof system C 33;
The portable fire extinguishing equipment C 4 is used as a first-level index, and the second-level index comprises a movable fire pump C 41, a foam generator C 42, a fire extinguisher C 43, a fire-fighting tool C 44 and a personal protection equipment C 45.
Preferably, in the step S2, the tissue expert gives a three-parameter interval gray number type score according to the importance of each evaluation index according to a percentage; calculating the weight of the evaluation index;
And respectively giving out the ash values of all the evaluation indexes of the fire fighting capacity of the ship structure in three parameter intervals by expert groups, and carrying out standardized treatment to obtain a consistent three parameter interval ash number decision table.
Preferably, the proximity coefficient of the bi-directional projection method in the step S4 is:
Wherein the larger λ * i, the better scheme a i, and vice versa;
Wherein A i,Aj represents the alternative scheme, and A +,A- represents the positive ideal scheme and the negative ideal scheme; Representing the projection of vector A iA+ formed by alternative A i and positive ideal A + on A _A+,/> Representing the projection of a _A+ onto a iA_.
Preferably, the consistency coefficient in the step S4 is:
wherein A i,Aj represents the alternative scheme, and A +,A- represents the positive ideal scheme and the negative ideal scheme; a -A+ represents the vector formed by the positive and negative ideal points, Representing the projection of vector a iA+ formed by alternative a i and the positive ideal a + onto a -A+,Representing the projection of AA + onto a iA_.
The invention provides a ship structure fire fighting capacity comprehensive evaluation method based on three-parameter interval gray numbers, which can realize distinguishing the fire fighting capacity of the ship structure, and compared with a unidirectional projection method, the evaluation method provided by the invention has stronger distinguishing capacity;
the basic thought of the original two-way projection method is subjected to mathematical analysis, so that the error source of the original method is pointed out and corrected, and the corrected evaluation method is verified to be more reasonable through carrying out example calculation on the fire fighting capacity of the four ship structures;
Because of the complexity and uncertainty of the objective things, the decision maker can only give evaluation information in the form of interval gray numbers, and compared with the interval gray numbers, the three-parameter interval gray numbers show the value with highest possibility in the interval number through the center of gravity, so that the comprehensive evaluation method can more accurately express the true intention of the decision maker, and the decision result is more in line with objective facts.
Drawings
FIG. 1 is a schematic diagram of a bi-directional projection method according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a technical scheme that: the ship structure fire fighting capacity comprehensive evaluation method based on the three-parameter interval gray number comprises the following steps:
S1, establishing a fire-fighting capacity evaluation index system of a ship structure, normalizing a three-parameter interval gray number evaluation matrix of each fire-fighting capacity index of the ship structure by adopting a normalization method to obtain a normalized decision matrix
S2, scoring fire fighting capability evaluation indexes of the ship structure by an organization expert group, wherein the given estimated value requirement is three-parameter interval gray number, and determining each index weight w j, j=1, 2 and … m;
S3, respectively calculating positive and negative target centers and positive and negative target center distances of fire fighting capacity evaluation indexes of the ship structures based on three-parameter interval gray number base knowledge The positive and negative bulls-eye distance epsilon (+);
S4, sequencing the closeness or consistency coefficient of the fire fighting capacity of each ship structure calculated by using the two-way projection method as a reference, wherein the sequencing result is the sequencing of the fire fighting capacity of the ship structure.
Fire fighting capability evaluation index system of ship structure
Because the task attribute is special, inflammable and explosive substances are more on the ship, compared with the civil ship, the disaster possibility is higher, and therefore, the requirements on the fireproof and explosion-proof capacity of the ship are higher. This requires that the ship be constructed to minimize the possibility of fire explosion, minimize the extent of fire spread, and allow the fire to be quickly controlled to be extinguished. To achieve this, measures such as structural fire protection, limited use of combustible materials, and reliable fire protection equipment are mainly adopted. Specifically, the structural fire prevention mainly adopts two measures of controlling combustible substances, ventilation, heat sources and ship cabins, arranging fire-resistant partitions and the like; to reduce the possibility of fire and slow down the flame propagation speed in the event of fire, combustible materials are limited to be used at the living service places, corridor, stairway and the like of the naval staff; due to the special nature of ships, rescue conditions are very difficult when they are on the sea, and therefore reliable and efficient fire fighting equipment must be provided. Based on the above analysis, a fire fighting capability assessment index system of the ship structure can be constructed as shown in table 1.
TABLE 1 fire fighting capability evaluation index system for ship structure
Mathematical analysis and correction of two-way projection method
Basic idea of two-way projection method
Scheme ordering is always one of key points in decision method research, and the basic idea of the two-way projection method in the prior art is as follows: let a certain alternative scheme in the decision process be denoted as a i, a positive ideal scheme (also called positive ideal point) be denoted as a +, a negative ideal scheme (also called negative ideal point) be denoted as a -, and a vector formed by the positive and negative ideal points be denoted as a -A+. The projection of vector a iA+ formed by alternative a i and positive ideal a + on a -A+ is noted asThe projection of vector A iA- formed by alternative A i and negative ideal A - onto A-A + is denoted/>The projection of A-A + onto A iA+ is denoted/>The projection of A-A + onto A iA- is denoted/>Referring to the TOPSIS decision method, construct a closeness formula [12],
The larger λ i, the better scheme a i, and vice versa.
The prior art, on this basis, gives a consistency coefficient gamma i,
The larger the uniformity coefficient γ i, the better the solution a i is explained.
Mathematical analysis of bi-directional projection
The above-mentioned two-way projection method has defects, and is described below by using a triangle schematic diagram.
Point a i,Aj in fig. 1 represents alternative a i,Aj, respectively, and points a +, a-represent positive and negative ideal schemes, respectively. Scheme a i,Aj in the figure is the same as the projection of the vector formed by the positive ideal scheme a + on a -A+, namely a iAj⊥A-A+, the drop foot being point C; the projections of the vectors A-A + on the vectors formed by the alternative scheme A i,Aj and the ideal scheme A + are respectively A +Di,A+Dj, the drop feet are respectively D i,Dj, and then the measure of A +Di,A+Dj is respectively A +Di||,||A+Dj
As shown in fig. 1 (1), if only the unidirectional projections of the alternative solution a i,Aj on A-A + are considered, the solution a i,Aj cannot distinguish between the merits and the merits. If the distance between A i,Aj and A + or the included angle between A iA-,AjA- and A -A+ are considered further, the scheme A i is obviously better than the scheme A j, which completely accords with the normal judgment of people.
But as shown in FIG. 1 (1), I A+D j||＜||A+Di I, i.eAlso because A iAj⊥A-A+, i.e./>Substituting it into the calculations of equations (1) and (2) yields readily available λ j＞λi,γj＞γi, i.e., scheme a j is better than scheme a i, which is clearly contradictory to the above description, and is contrary to routine.
This contradiction arises because the prior art gives a basic idea of closeness and consistency coefficient formula derived from TOPSIS, where schemes A i are related to closenessOrdering is performed in whichFor the distance of scheme a i from the positive and negative ideal schemes, respectively, the larger μ i, the better the scheme. In this relative proximity structure, the distance/>, of scheme A i from the positive ideal schemeDominantly influencing the value of mu i,/>The larger the μ i, the larger the scheme. Distance of scheme A i from negative ideal scheme/>The effect on the value of mu i is smaller. In the bi-directional projection method, the distance between the alternative scheme A i and the positive ideal scheme A + is the projection/>, by the vector A iA+, on the vector A -A+ formed by the positive and negative ideal schemesBut the prior art does not stand out/>, as in the construction of relative closeness μ i in TOPSIS decisions, when constructing relative closeness or uniformity coefficients for bi-projectionIs the dominant position of (3).
Correction of closeness and consistency coefficients
According to the mathematical analysis of the principle of the bi-directional projection method, the following new definition of the closeness of the bi-directional projection method is given.
The closeness coefficient of the two-way projection method is
The larger λ * i, the better scheme a i, and vice versa.
Corresponding to the prior art, consistency coefficients are obtainable, in particular as follows:
theorem, set a dispersion function Wherein gamma i * is the coefficient of uniformity,
The larger γ i * indicates the better scheme a i.
And (3) proving: considering that the function f (gamma i *) is a quadratic function with respect to gamma i *, the corresponding function curve is a quadratic curve with an upward opening, so that the minimum value of f (gamma i *) is located at the vertex of the quadratic curve, and the abscissa at the vertex is found, thus obtaining the conclusion of the above theorem.
As shown in fig. 1 (2), a _Dj||＜||A_Di, i.eAnd because A iAj⊥A-A+, i.e./>It is easy to know that they are substituted into the formulas (3) and (4), respectivelyI.e., scheme a i is preferred over scheme a j, which is consistent with the analytical conclusion of the scheme ordering described above. It is shown that the sorting of the patterns by using the new closeness lambda * i and the consistency coefficient gamma i * is more reasonable.
Ship structure fire fighting capacity comprehensive evaluation model under three-parameter interval gray number
Three parameter interval gray number base knowledge
Definition 1 existing upper boundThe gray number with the lower bound x is called interval gray number and is expressed as/>And/>If the number of interval gray numbers with the highest probability is known, the interval gray number can be expressed as/>Called the three-parameter interval gray number, wherein/>Is/>The number with the highest probability of value is called the gravity center.
According to the algorithm of the three-parameter interval gray number, the distance between two three-parameter interval gray numbers can be defined.
Definition 2 setting upAnd/>Two three-parameter interval ash numbers are:
is the ash number in the three-parameter interval And/>Is a distance of (3).
Definition 3 setting upThe ash value of the corresponding three-parameter interval is recorded as/>Then record
Is the optimal ideal effect vector, and is also called as a positive bulls-eye vector.
Definition 4 setting upThe ash value of the corresponding three-parameter interval is recorded as/>Then call for
Is the optimal ideal effect vector, also called the negative bulls-eye vector.
Definition 5 setting upFor the evaluation vector of scheme a i,Is a positive target vector,/>Is a negative target vector, let
Then call forRespectively, the positive target distance and the negative target distance of the scheme A i under the evaluation index set, epsilon ± is the positive target distance and the negative target distance in the evaluation process, wherein w j, j=1, 2 and … m are the weights of all the evaluation indexes.
Standardized processing of fire fighting capability assessment decision matrix of ship structure
In order to eliminate the difference of different attribute dimensions in the evaluation decision matrix, unify the influence direction of decision information, and decide the matrix for the gray number of the three-parameter intervalGiving a normalization formula: is provided withThe benefit indexes are as follows:
The cost index is as follows:
After normalizing the original decision matrix, a consistency three-parameter interval gray number decision matrix can be obtained Because the indexes in the fire fighting capacity evaluation index system of the ship structure are benefit type, the ship structure can be evaluated by using the formula (7).
Ship structure fire fighting capability evaluation index weight determination method based on three-parameter interval gray number
The weight of the fire fighting capacity evaluation index j (j=1, 2, … m) of the ship structure by the tissue expert group { S 1,S2…Sn } gives a three-parameter interval gray number estimated value ofScale/>Is the maximum measure of the index j weight estimation value, wherein/>For the minimum value of the lower bound of the estimated value of index j (j=1, 2, … m),The maximum value of the upper bound of the value is estimated for index j (j=1, 2, … m). Order the
Wherein the method comprises the steps ofFor the real weight of index j (j=1, 2, … m), h si is the ratio of the weight error of index j given by expert s i to the maximum measure of the weight estimation value of index j (the weight error given by expert is represented by the difference between the center of gravity of the gray number of the three-parameter interval and the real weight). For each of the criticizing specialists, h si can be considered to be identical for the evaluation index j (j=1, 2, … m). Therefore, the weight of index j/>The method comprises the following steps:
Wherein the method comprises the steps of
Determination of closeness and consistency coefficients
In order to realize the sequencing of the fire fighting capability of structures of different ships, the section gives the closeness and consistency coefficients of the two-way projection under the three-parameter interval gray number according to the mathematical analysis of the two-way projection method and the three-parameter interval gray number base knowledge, wherein the closeness and consistency coefficients are respectively as follows:
Wherein the method comprises the steps of Is positive and negative target distance epsilon ± at/>Projection on,/>For/>Projection on positive and negative bulls-eye spacing ε ±, i.e.
Examples
The decision model provided by the invention is used for evaluating the structural fire fighting capacity of four ships.
In the first step, five experts in organization give three-parameter interval gray number type scores according to the importance of each evaluation index according to a percentage system, as shown in table 2.
Table 2 expert gives the ash values in the three-parameter interval for each index importance
Weights of 14 evaluation indexes can be calculated according to 4.3 to be w＝[0.0569 0.0570 0.0670 0.0717 0.0777 0.0753 0.0783 0.0810 0.0695 0.0766 0.0729 0.0805 0.0646 0.0709].
Secondly, respectively giving out three-parameter interval ash values of each evaluation index of the fire fighting capacity of the four ship structures by expert groups, and carrying out standardized processing according to the fire fighting capacity evaluation decision matrix of the ship structures to obtain a consistent three-parameter interval ash number decision table, see table 3
TABLE 3 three parameter interval ash values and positive and negative ideal value decision table for fire fighting capacity of four ship structures
The positive and negative targets obtained by definition 3 and definition 4 are respectively
{[0.92,0.95,1.00],[0.95,0.97,1.00],[0.95,0.98,1.00],[0.94,0.97,1.00],[0.80,0.83,0.85],[0.90,0.95,0.97],[0.86,0.88,0.92],[0.85,0.89,0.95],[0.85,0.87,0.91],[0.82,0.85,0.91],[0.81,0.83,0.85],[0.88,0.90,0.91],[0.82,0.86,0.90],[0.91,0.95,0.99]} And (3) with
{[0.70,0.72,0.78],[0.50,0.55,0.58],[0.85,0.86,0.88],[0.65,0.69,0.71],[0.17,0.20,0.23],[0.58,0.60,0.62],[0.46,0.48,0.52],[0.55,0.59,0.65],[0.65,0.71,0.71],[0.60,0.62,0.71],[0.59,0.60,0.62],[0.58,0.61,0.65],[0.62,0.65,0.70],[0.79,0.84,0.85]}.
The distance between the positive and negative targets can be obtained by the formula (6): epsilon ± = 0.3152 and the target distances of each ship from the positive and negative targets are as shown in table 4:
table 4 target distances between each ship and the positive and negative targets respectively
The sorting of the fire fighting capacity of the four ship structures is calculated by using a one-way projection method as a reference and a two-way projection method, and the specific results are shown in table 5:
Table 5 ranking table of fire fighting capabilities of ship structure under calculation results of various methods
( And (3) injection: 1. the existing two-way projection method and the improved two-way projection method in the table adopt consistency coefficients for sorting, and the larger the result is, the better the scheme is; 2. the projection of the scheme and the positive target connecting line on the positive and negative target connecting line is calculated by the unidirectional projection method in the table, so that the smaller the result is, the better the scheme is. )
As can be seen from table 5: (1) For the fire-fighting capacity of the structures of the ships S 1 and S 3, the unidirectional projection method cannot be used for distinguishing the advantages and disadvantages, and the other two methods can be distinguished, so that the other two methods are better than the unidirectional projection method; (2) The fire fighting capacity of the four ship structures calculated by the corrected bidirectional projection method is ranked as S 3＞S1＞S2＞S4, and under the bidirectional projection method in the prior art, the fire fighting capacity of the ship structures is ranked as S 1＞S3＞S2＞S4, wherein the ranks of the ship structures S 1 and S 3 are exactly opposite to the ranks of the corrected bidirectional projection method, which are identical to the mathematical analysis results in the mathematical analysis of the bidirectional projection method, so that the unreasonable part exists in the conventional bidirectional projection method, and the corrected bidirectional projection method is further proved to be more reasonable and scientific.
The structural fire fighting capability of a ship is an important ring in the vitality of the ship. The invention provides a new comprehensive fire fighting capacity evaluation method for the ship structure based on the ash number of the three-parameter interval on the basis of providing a fire fighting capacity evaluation index system for the ship structure. This method has significant advantages over other evaluation methods: (1) In the example, for the structural fire fighting capacity of ships S 1 and S 3, the unidirectional projection method cannot distinguish the advantages and disadvantages, but the method provided by the invention can realize the distinction, and the evaluation method provided by the invention has stronger distinguishing capacity compared with the unidirectional projection method; (2) The basic thought of the original two-way projection method is subjected to mathematical analysis, so that the error source of the original method is pointed out and corrected, and the corrected evaluation method is verified to be more reasonable through carrying out example calculation on the fire fighting capacity of the four ship structures; (3) Because of the complexity and uncertainty of the objective things, the decision maker can only give evaluation information in the form of interval gray numbers, and compared with the interval gray numbers, the three-parameter interval gray numbers show the value with highest possibility in the interval number through the center of gravity, so that the comprehensive evaluation method can more accurately express the true intention of the decision maker, and the decision result is more in line with objective facts.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. The ship structure fire fighting capacity comprehensive evaluation method based on the three-parameter interval gray number is characterized by comprising the following steps of: the method comprises the following steps:
s1, establishing a fire-fighting capacity evaluation index system of a ship structure, and normalizing a three-parameter interval gray number evaluation matrix of fire-fighting capacity indexes of each ship structure by adopting a normalization method to obtain a normalized decision matrix;
S2, scoring fire fighting capability evaluation indexes of the ship structure by an organization expert group, wherein the given evaluation value requirement is a three-parameter interval gray number, and determining each index weight; respectively giving out the ash values of three-parameter intervals of each evaluation index of the fire fighting capacity of the ship structure, and carrying out standardized treatment to obtain a consistent three-parameter interval ash number decision table;
S3, calculating positive and negative targets, positive and negative target distances and positive and negative target distances of fire fighting capacity evaluation indexes of the ship structures based on three-parameter interval gray number base knowledge;
S4, sequencing the closeness or consistency coefficient of the fire fighting capacity of each ship structure calculated by using a one-way projection method as a reference, wherein the sequencing result is sequencing the fire fighting capacity of the ship structure;
the proximity coefficient of the bi-directional projection method in the step S4 is:
Wherein the larger λ * i, the better scheme a i, and vice versa;
Wherein A i,Aj represents the alternative scheme, and A +,A- represents the positive ideal scheme and the negative ideal scheme; representing the projection of vector A iA+ formed by alternative A i and positive ideal A + on A -A+,/> Representing the projection of a -A+ onto a iA-;
The consistency coefficient in the step S4 is as follows:
wherein A i,Aj represents the alternative scheme, and A +,A- represents the positive ideal scheme and the negative ideal scheme; a -A+ represents the vector formed by the positive and negative ideal points, Representing the projection of vector a iA+ formed by alternative a i and the positive ideal a + onto a -A+,Representing the projection of a -A+ onto a iA-.
2. The ship structure fire fighting capacity comprehensive evaluation method based on the three-parameter interval gray number according to claim 1, which is characterized in that: the indexes of the ship structure fire-fighting capacity evaluation index system in the step S1 comprise a fireproof structure C 1, a fire alarm capacity C 2, a fire extinguishing system C 3 and a portable fire extinguishing apparatus C 4.
3. The ship structure fire fighting capacity comprehensive evaluation method based on the three-parameter interval gray number according to claim 2, which is characterized in that: the fireproof structure C 1 is used as a first-level index, and the second-level index comprises a second-level index which controls ventilation of combustible substances and a heat source C 11, divides a fireproof area C 12 and adopts a nonflammable material C 13;
The fire alarm capacity C 2 is used as a primary index, and the secondary indexes comprise a fire detection system C 21, a fire alarm system C 22 and a fire extinguishing system starting alarm system C 23;
The fire extinguishing system C 3 is used as a first-level index, and the second-level index comprises a whole ship fire extinguishing system C 31, an ammunition cabin and jet fuel cabin fireproof system C 32 and a power device cabin fireproof system C 33;
The portable fire extinguishing equipment C 4 is used as a first-level index, and the second-level index comprises a movable fire pump C 41, a foam generator C 42, a fire extinguisher C 43, a fire-fighting tool C 44 and a personal protection equipment C 45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310426862.XA CN116452053B (en) | 2023-04-19 | 2023-04-19 | Ship structure fire fighting capability comprehensive evaluation method based on three-parameter interval gray number |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310426862.XA CN116452053B (en) | 2023-04-19 | 2023-04-19 | Ship structure fire fighting capability comprehensive evaluation method based on three-parameter interval gray number |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116452053A CN116452053A (en) | 2023-07-18 |
| CN116452053B true CN116452053B (en) | 2024-04-19 |
Family
ID=87119862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310426862.XA Active CN116452053B (en) | 2023-04-19 | 2023-04-19 | Ship structure fire fighting capability comprehensive evaluation method based on three-parameter interval gray number |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116452053B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110037435A (en) * | 2009-10-07 | 2011-04-13 | 한국해양연구원 | Ship damage assessment and control system and operating method thereof |
| CN108663727A (en) * | 2017-03-31 | 2018-10-16 | 西北工业大学 | The method for estimating height of evaporation duct within the scope of world marine site using evaporation rate |
| CN110135741A (en) * | 2019-05-20 | 2019-08-16 | 中国船舶重工集团公司第七0三研究所 | Hot drill evaluating system and method based on carrier-borne aircraft fire |
| CN115859028A (en) * | 2022-11-24 | 2023-03-28 | 广东科技学院 | Method for inducing gray number weighted average clustering operator in three-parameter interval based on set hedging |
-
2023
- 2023-04-19 CN CN202310426862.XA patent/CN116452053B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110037435A (en) * | 2009-10-07 | 2011-04-13 | 한국해양연구원 | Ship damage assessment and control system and operating method thereof |
| CN108663727A (en) * | 2017-03-31 | 2018-10-16 | 西北工业大学 | The method for estimating height of evaporation duct within the scope of world marine site using evaporation rate |
| CN110135741A (en) * | 2019-05-20 | 2019-08-16 | 中国船舶重工集团公司第七0三研究所 | Hot drill evaluating system and method based on carrier-borne aircraft fire |
| CN115859028A (en) * | 2022-11-24 | 2023-03-28 | 广东科技学院 | Method for inducing gray number weighted average clustering operator in three-parameter interval based on set hedging |
Non-Patent Citations (5)
| Title |
|---|
| Bidirectional projection grey target decision-making model based on three-parameter interval grey number;Ping Xiong;《Journal of Physics》;20230809;第2558卷;1-8 * |
| Research on Projection Gray Target Model Based on FANP-QFD for Weapon System of Systems Capability Evaluation;Yunke Sun;《IEEE Systems Journal 》;20201014;第15卷(第3期);4126 - 4136 * |
| 三参数区间灰数的多属性灰靶决策方法;朱山丽;《河南科学》;第34卷(第7期);1031-1036 * |
| 基于AHP法的大型舰船飞行甲板的火灾风险评价模型;张琳;《舰船电子工程》;第34卷(第3期);120-123+17 * |
| 基于广义灰数的双向投影灰靶决策模型拓展研究;刘中侠;《系统工程理论与实践》;第39卷(第3期);776-782 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116452053A (en) | 2023-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110135741A (en) | Hot drill evaluating system and method based on carrier-borne aircraft fire | |
| Azzi et al. | Evacuation simulation of shipboard fire scenarios | |
| Bukowski et al. | Developing rational, performance‐based fire safety requirements in model building codes | |
| CN116452053B (en) | Ship structure fire fighting capability comprehensive evaluation method based on three-parameter interval gray number | |
| CN115062986A (en) | Well site fire-extinguishing emergency rescue risk evaluation method based on multi-source data fusion | |
| Carhart et al. | The Ex-Shadwell: Full Scale Fire Research and Test Ship | |
| Bloshchynskyi | Peculiarities of Professional Training of the US Border Patrol Special Operations Group's Agents | |
| Arborea et al. | Preventive fire risk assessment of Italian architectural heritage: An index based approach | |
| CN117668570A (en) | Device, method and equipment for selecting laying of fireproof cable | |
| CN116363825B (en) | Method and device for displaying fire spreading trend, electronic equipment and medium | |
| CN111932054A (en) | Method for evaluating environmental adaptability of explosion hazard of electrical equipment emergency equipment | |
| Zhu et al. | High-rise building group regional fire risk assessment model based on AHP | |
| Bartram | Validation of the Micropat battery | |
| Solomon et al. | Sources of human instability in the handling of nuclear weapons | |
| Zhou et al. | A review of cabin fire and numerical simulation technology and intelligent fire protection technology | |
| Sprague et al. | A methodology for evaluation of ship fire safety | |
| Chu et al. | Development of the Navy’s 3D mine impact burial prediction model (IMPACT35) | |
| Fitzgerald et al. | Firesafety Analysis of the Polar Icebreaker Replacement Design | |
| Fowell | Assessing toxic hazard as it relates to overall fire hazard | |
| Rasbash | A modular approach to the subject of fire safety engineering | |
| Ricciardelli | Seafarers as first responders: An ethnographic study of safety and survival training | |
| Maljković et al. | How important is training in marine firefighting equipment-SCABA? | |
| Deere | Ship design with the human factor: evacuation and normal operations modelling in the ship design process | |
| Liu et al. | Influence of carrier corridor configuration on evacuation performance | |
| Drager et al. | SIMLAB. A training simulator for emergency preparedness decisions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |