CN102930139A - Optimal anti-settlement scheme seeking method for straightening ship - Google Patents
Optimal anti-settlement scheme seeking method for straightening ship Download PDFInfo
- Publication number
- CN102930139A CN102930139A CN2012103773464A CN201210377346A CN102930139A CN 102930139 A CN102930139 A CN 102930139A CN 2012103773464 A CN2012103773464 A CN 2012103773464A CN 201210377346 A CN201210377346 A CN 201210377346A CN 102930139 A CN102930139 A CN 102930139A
- Authority
- CN
- China
- Prior art keywords
- scheme
- boats
- ships
- optimum
- value
- 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.)
- Pending
Links
Images
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention aims to provide an optimal anti-settlement scheme seeking method for straightening a ship. The optimal anti-settlement scheme seeking method comprises the following steps of: selecting six indexes, namely a transverse inclination angle, a longitudinal inclination angle, a minimum freeboard height, a maximum static stable arm, a minimum movable stable arm and a balanced stable core height of the ship as targets for determination; performing effect estimation on the six indexes by three estimation methods, namely a technique for order preference by similarity to ideal solution (TOPSIS) method, a simple linear weighing method and a linear distribution method, obtaining value quantification values O1, O2 and O3 of the three estimation methods; and obtaining an optimal anti-settlement scheme OP for straightening the ship by comparing the value quantification sizes of the three schemes, wherein OP is equal to max(O1, O2 and O3). Each anti-settlement scheme effect can be estimated by a math calculation method; a value quantification method is performed on the scheme effects; the optimal scheme is determined by a scheme effect quantification value sequencing method; and therefore, the stability of the ship is improved.
Description
Technical field
What the present invention relates to is a kind of method that improves stability of ship, specifically anti-heavy method.
Background technology
Large heel and trim tend to occur after the impaired water inlet of boats and ships.Ship can since the reduction of stability and sharply reducing of freeboard and in the hole do not topple if the breakage of boats and ships is subject to effectively processing the serious boats and ships that may cause.Whether effectively can improve the stability of boats and ships, increase the freeboard value of boats and ships and heel and the trim that reduces boats and ships, be the measure of suing and labouring criterion.The guarantee of boats and ships vitality and fighting capacity also relies on the righting measure to determine rapidly and effectively.1), stop spreading of water impaired ship Counter-Flooding cardinal rule has:: for boats and ships can not being toppled breakage after and can continuing safe form even finish the work, then need the reserve buoyancy of other boats and ships and stability to obtain enough recoveries, and with its righting.2), balance hull: the anti-heavy adjustment of boats and ships should be paid attention to the recovery of stability and save reserve buoyancy, just can adjust floading condition after stability meets the demands.Can not come the balance metacentric height with the method that applies opposition is the hull of negative value; When disabled ship had sufficiently high positive initial stability, then the adjustment of floading condition can directly realize by adjusting heel and trim.After floading condition and stability are transferred preliminary whole finishing, can also take to add the filling seawater, lay down the stability that the method such as goods further improves boats and ships.The process of suing and labouring according to disabled ship, Adopts measure is exactly spreading of restriction water at first, this is the key that concerns safety of ship, after the development of infringement is controlled, also must recover rapidly stability and the righting boats and ships of boats and ships, if the stability of boats and ships does not have to recover or boats and ships are keeping the state of inclination, then can make boats and ships still locate to be at stake, hindered suing and labouring of boats and ships.Disposal route when 3), negative metacentric height appears in boats and ships: the stability of boats and ships can be owing to having a plurality of cabins damage and water inflow and large-area free surface occurring and greatly reduction.Boats and ships can be in the hole when metacentric height is reduced to negative value.Therefore, when the large tracts of land free surface occurring, can adjust boats and ships by the situation that negative metacentric height occurs.Initial stability is when negative, and boats and ships can the run-off the straight because center of gravity is higher than metancenter, and the raising of center of gravity also increased the danger that boats and ships topple, for fear of the appearance of this situation will improve metacentric height arrive on the occasion of.The method that improves has usually: reduce the free flow of free surface and seawater; In the hold of symmetry, fill it up with Ballast Water; The vertical that removes symmetrically top load or symmetry moves down load.
Summary of the invention
The object of the present invention is to provide the anti-heavy scheme of optimum of a kind of righting boats and ships that can improve stability of ship to seek method.
The object of the present invention is achieved like this:
The anti-heavy scheme of the optimum of a kind of righting boats and ships of the present invention is sought method, it is characterized in that:
(1) select high, the maximum lever of statical stability of heeling angle, trim angle, minimum freeboard of boats and ships, minimum dynamical stability arm, high 6 indexs of weighing apparatus metancenter as the target of making a strategic decision;
(2) adopt respectively TOPSIS method, simple linear weighted method, three kinds of appraisal procedures of linear distribution method that 6 indexs in the step (1) are carried out recruitment evaluation, obtain the numerical quantization value O of appraisal procedure in three
1, O
2, O
3
(3) draw the anti-heavy scheme O of optimum of righting boats and ships by the numerical quantization size of three kinds of schemes relatively
P, i.e. O
P=max (O
1, O
2, O
3).
The present invention can also comprise:
1, described TOPSIS appraisal procedure step is:
(1) structure of initial decision matrix: yes-no decision integrates as X={X
1..., X
n, X
iRepresent i scheme, X
iIn the integrating as Y of each property value
i={ Y
I1..., Y
1n, wherein the value of j attribute of i scheme is Y
Ij, the property value of available each scheme of matrix representation;
(2) the initial decision matrix that standardizes all transforms to each property value in (0,1) scope;
(3) determine solution and the poorest solution of property value optimum;
(4) ask each to separate the distance of optimum solution and the poorest two solutions of solution;
(5) scheme is sorted, select one of optimum to be adopted, optimal case numerical quantization value is O
1
2, described simple linear weighted method step is:
(1) the initial decision matrix Z={Z of structure
1..., Z
n;
(2) the initial decision matrix of standard;
(3) determine attribute weights: ω={ ω
1..., ω
n;
(4) seek getting optimal case:
U
i=ω
1Z
I1+ ω
2Z
I2+ ... + ω
nZ
In, i=1,2 ..., m, max (U
i)=U
j, i.e. U
jBe the anti-heavy scheme of the best, optimal case U
jThe numerical quantization value is O
2
3, described linear distribution method step is:
(1) according to decision matrix, with arranged sequentially by from high to low of each attribute in each scheme;
(2) structure weight order matrix;
(3) adopt the method for two-value linear programming to seek optimal case, optimal case numerical quantization value is O
3
4, the weight matrix of the heeling angle of boats and ships, trim angle, high, the maximum lever of statical stability of minimum freeboard, minimum dynamical stability arm, high 6 indexs of weighing apparatus metancenter is w=(0.10,0.05,0.46,0.02,0.15,0.22).
Advantage of the present invention is: adopt mathematic calculation to assess each anti-heavy scheme effect, and the scheme effect is adopted the numerical quantization method, adopt at last scheme effect quantized values sort method to determine optimal case, improved the stability of boats and ships.
Description of drawings
Fig. 1 is the schematic diagram of the inventive method.
Embodiment
For example the present invention is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1, the anti-heavy scheme of the optimum of a kind of righting boats and ships that the present invention relates to is sought method, the basic thought of the method is to use multiple science computing method to assess anti-heavy scheme, adopt mathematic calculation to assess each anti-heavy scheme effect, and to scheme effect employing numerical quantization method, adopt at last scheme effect quantized values sort method to determine optimal case.
The criterion of the insubmersibility of boats and ships is more, and the anti-heavy highest goal that decreases pipe improves each insubmersibility index exactly, makes the vitality of recovering boats and ships obtain maximum recovery.But in the actual conditions, restriction even conflicting all standard all are optimized each standard to be and impossible realize mutually, and the raising of a certain standard must cause the reduction of another or several standards.Such as, when for the initial stability that improves boats and ships hold being carried out ballast, minimum freeboard can reduce because of reducing of reserve buoyancy, i.e. and initial stability raising has caused reducing of minimum freeboard.Therefore, it is impossible wanting to make the anti-heavy scheme that can optimize each standard, also is unnecessary, and what really need to set up is that a cover possesses the anti-heavy system that the heavy standard of antagonism has the comprehensive evaluation ability.This individual system represents the importance of every insubmersibility standard with the size of weighted value, and provides the method for weighing its risk factor, makes system select to threaten maximum standard to be optimized to safety of ship according to the actual spoilage situation.Realize the most effectively eliminating in the shortest time danger of boats and ships.
In order comparatively comprehensively to study criterion to the impact of boats and ships insubmersibility, Ben Fanming selects following 6 indexs as the target of decision-making: the heeling angle of boats and ships, the trim angle of boats and ships, high, the maximum lever of statical stability of minimum freeboard, minimum dynamical stability arm, weighing apparatus metancenter are high.The weight of each standard determines by Multi-Objective Decision Theory, and the weight matrix that obtains is w=(0.10,0.05,0.46,0.02,0.15,0.22).
The prerequisite of feasible anti-heavy solution formulation is to have grasped the shipbreaking state, and this state is judged, formulates anti-heavy scheme according to the result who judges, the decision maker selects optimum conduct commander's scheme from a series of anti-heavy scheme.Every kind of scheme all exists advantage and deficiency, therefore to carry out comprehensive assessment to these schemes, except will avoiding artificial subjective factor, also should choose the multiple assessment method, result by the assessment of Comprehensive Correlation multiple assessment method comes various anti-heavy scheme is sorted, and the result who obtains like this can be more accurate and realistic.The present invention selects three kinds of appraisal procedures namely: the TOPSIS method; The simple linear weighted method; The linear distribution method is as comprehensive estimation method.The specific embodiments of each method is as follows:
1) TOPSIS method
The TOPSIS method is namely approached the ranking method of ideal solution, and the method for its ordering is based on " ideal solution " and " negative ideal solution " of decision-making problem of multi-objective.The preferred embodiments of imagination is " ideal solution ", and its each property value all reaches best.The worst scheme of supposing is " negative ideal solution ", and its each property value all is worst-case value.In application process, the optimum solution in all schemes can be considered nearest apart from ideal solution, and negative ideal solution that scheme farthest of distance.Concrete steps are as follows:
A. the structure of initial decision matrix.The yes-no decision collection is made as X={X
1..., X
n, X
iRepresent i scheme, X
iIn the integrating as Y of each property value
i={ Y
I1..., Y
1n, wherein the value of j attribute of i scheme is Y
Ij, the property value of available each scheme of matrix representation.
B. initial decision matrix standardizes.Because the unit of each property value is different, the property value in the initial decision matrix is widely different, therefore must standardize to property value, and each attribute is all transformed in (0,1) scope.
C. determine solution and the poorest solution of property value optimum.
D. ask the distance of each solution to two solution.
E. scheme is sorted, select optimum one to be adopted, and optimal case is carried out the numerical quantization method representation is O
1
2) simple linear weighted method
The most frequently used method is the simple linear weighted method in the decision-making problem of multi-objective solution procedure.The decision matrix of standard quantification and the weights of attribute are the essential informations that method needs.The basic process of assessment is: each scheme all properties is weighted summation, therefrom selects the scheme of numerical value maximum as the anti-heavy scheme of optimum.Concrete algorithm steps is as follows:
A. construct initial decision matrix Z={Z
1..., Z
n.
B. the initial decision matrix of standard.
C. determine attribute weights: ω={ ω
1..., ω
n.
D. seek getting optimal case.
U
i=ω
1Z
I1+ ω
2Z
I2+ ... + ω
nZ
In, i=1,2 ..., m, max (U
i)=U
j, i.e. U
jBe the anti-heavy scheme of the best, and to optimal case U
jCarrying out the numerical quantization method representation is O
2
3) linear distribution method
The linear distribution method need to be determined each scheme with respect to the priority of target, does not need to provide first decision matrix.Its basic thought is: one more preferential, and then its several important goals also come the front.Concrete calculation procedure is as follows:
A. according to decision matrix, with arranged sequentially by from high to low of each attribute in each scheme.
B. construct the weight order matrix.
C. adopt the method for two-value linear programming to seek optimal case, and optimal case is carried out the numerical quantization method representation is O
3
At last, draw the anti-heavy scheme O of optimum of righting boats and ships by the numerical quantization size that compares three kinds of schemes
P, i.e. O
P=max (O
1, O
2, O
3).
Claims (5)
1. the anti-heavy scheme of the optimum of righting boats and ships is sought method, it is characterized in that:
(1) select high, the maximum lever of statical stability of heeling angle, trim angle, minimum freeboard of boats and ships, minimum dynamical stability arm, high 6 indexs of weighing apparatus metancenter as the target of making a strategic decision;
(2) adopt respectively TOPSIS method, simple linear weighted method, three kinds of appraisal procedures of linear distribution method that 6 indexs in the step (1) are carried out recruitment evaluation, obtain the numerical quantization value O of appraisal procedure in three
1, O
2, O
3
(3) draw the anti-heavy scheme O of optimum on righting naval vessel by the numerical quantization size of three kinds of schemes relatively
P, i.e. O
P=max (O
1, O
2, O
3).
2. the anti-heavy scheme of the optimum of a kind of righting boats and ships according to claim 1 is sought method, and it is characterized in that: described TOPSIS appraisal procedure step is:
(1) structure of initial decision matrix: yes-no decision integrates as X={X
1..., X
n, X
iRepresent i scheme, X
iIn the integrating as Y of each property value
i={ Y
I1..., Y
1n, wherein the value of j attribute of i scheme is Y
Ij, the property value of available each scheme of matrix representation;
(2) the initial decision matrix that standardizes all transforms to each property value in (0,1) scope;
(3) determine solution and the poorest solution of property value optimum;
(4) ask each to separate the distance of optimum solution and the poorest two solutions of solution;
(5) scheme is sorted, select one of optimum to be adopted, optimal case numerical quantization value is O
1
3. the anti-heavy scheme of the optimum of a kind of righting boats and ships according to claim 2 is sought method, and it is characterized in that: described simple linear weighted method step is:
(1) the initial decision matrix Z={Z of structure
1..., Z
n;
(2) the initial decision matrix of standard;
(3) determine attribute weights: ω={ ω
1..., ω
n;
(4) seek getting optimal case:
U
i=ω
1Z
I1+ ω
2Z
I2+ ... + ω
nZ
In, i=1,2 ..., m, max (U
i)=U
j, i.e. U
jBe the anti-heavy scheme of the best, optimal case U
jThe numerical quantization value is O
2
4. the anti-heavy scheme of the optimum of a kind of righting boats and ships according to claim 3 is sought method, and it is characterized in that: described linear distribution method step is:
(1) according to decision matrix, with arranged sequentially by from high to low of each attribute in each scheme;
(2) structure weight order matrix;
(3) adopt the method for two-value linear programming to seek optimal case, optimal case numerical quantization value is O
3
5. the anti-heavy scheme of the optimum of arbitrary described a kind of righting boats and ships is sought method according to claim 1-4, it is characterized in that: the weight matrix of the heeling angle of boats and ships, trim angle, high, the maximum lever of statical stability of minimum freeboard, minimum dynamical stability arm, high 6 indexs of weighing apparatus metancenter is w=(0.10,0.05,0.46,0.02,0.15,0.22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103773464A CN102930139A (en) | 2012-10-08 | 2012-10-08 | Optimal anti-settlement scheme seeking method for straightening ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103773464A CN102930139A (en) | 2012-10-08 | 2012-10-08 | Optimal anti-settlement scheme seeking method for straightening ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102930139A true CN102930139A (en) | 2013-02-13 |
Family
ID=47644936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103773464A Pending CN102930139A (en) | 2012-10-08 | 2012-10-08 | Optimal anti-settlement scheme seeking method for straightening ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102930139A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925237A (en) * | 2015-06-17 | 2015-09-23 | 中国人民解放军海军工程大学 | Hull righting method based on ship inclining reason classification |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528639A (en) * | 2003-09-12 | 2004-09-15 | 旃 陈 | Ship damage sinking-preventing technique |
-
2012
- 2012-10-08 CN CN2012103773464A patent/CN102930139A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528639A (en) * | 2003-09-12 | 2004-09-15 | 旃 陈 | Ship damage sinking-preventing technique |
Non-Patent Citations (2)
| Title |
|---|
| 李炳煌等: "构建舰船抗沉智能决策支持系统", 《航海工程》 * |
| 谢田华等: "船舶抗沉计算与决策模型研究", 《中国航海》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925237A (en) * | 2015-06-17 | 2015-09-23 | 中国人民解放军海军工程大学 | Hull righting method based on ship inclining reason classification |
| CN104925237B (en) * | 2015-06-17 | 2017-02-22 | 中国人民解放军海军工程大学 | Hull righting method based on ship inclining reason classification |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111859806B (en) | Intelligent ship-oriented liquid tank loading method and system | |
| CN105825061A (en) | Method for calculating random floating state of ship on basis of STL model | |
| Piscopo et al. | The overall motion sickness incidence applied to catamarans | |
| CN104063563A (en) | Method for calculating ocean spring layer characteristic values through multi-line-segment least square fitting | |
| Chen et al. | Optimization of ship’s subdivision arrangement for offshore sequential ballast water exchange using a non-dominated sorting genetic algorithm | |
| CN110816792A (en) | Stability adjusting system and method for underwater robot | |
| CN109978393A (en) | Routing scheme water-area navigation methods of risk assessment based on ship domain | |
| CN102930139A (en) | Optimal anti-settlement scheme seeking method for straightening ship | |
| CN104392138A (en) | Emergency decision auxiliary method for bilging of damaged cabin of ship | |
| CN104925237A (en) | Hull righting method based on ship inclining reason classification | |
| CN107358154A (en) | Head motion detection method and device and living body identification method and system | |
| CN110956388B (en) | Method for generating yield increasing scheme of offshore oil and gas reservoir | |
| CN110443409A (en) | A kind of harbour Containers For Export prestowage planning method | |
| CN113792486B (en) | Underwater glider depth average flow prediction method based on VMD-SSA-LSSVM | |
| CN1312636C (en) | Morphologic filter automatic destination detecting method | |
| CN111674524A (en) | Bottom-up molded line layered design method for ballastless water ship | |
| CN103903003A (en) | Method for using Widrow-Hoff learning algorithm | |
| CN111612351A (en) | Method for assessing damage risk of marine aquaculture net cage facilities | |
| CN110203339A (en) | A kind of design method of inclined ladder for ship | |
| CN106447088A (en) | Construction site disaster prediction method based on genetic algorithm | |
| Brizzolara et al. | Wind heeling moments on very large ships. Some insights through CFD results | |
| Chen et al. | Mechanism and simulation of personifying intelligent decision-making for vessel collision avoidance | |
| CN118195313A (en) | Carrier-based aircraft landing risk assessment method | |
| Wang et al. | Research on Barge Stability Automatic Adjustment Method of Jacket Sliding into Water | |
| Yamano et al. | Stern waves consisting of forward-oriented breaking waves and the remaining following waves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |