Ship construction element integrated control model construction and collaboration degree judgment method

Abstract

The invention discloses a ship construction element integrated control model construction and collaboration degree judgment method, which comprises the following steps: determining five elements of progress, cost, quality, safety and environmental protection as a ship construction project based on synergetics, and constructing a ship construction process collaboration degree network structure model; analyzing influence factors of the five subsystems, and determining order parameter indexes; constructing five subsystem element sets; analyzing the relationship among the elements, and constructing an influence factor association table; calculating the weight value of each element, and carrying out coordination decision-making on each element; a ship construction project collaboration degree calculation model is constructed, the ship construction project system collaboration degree is obtained according to calculation of the ship construction project subsystem order degree, and the collaboration condition of all elements of a ship construction project is achieved through a quantitative method. According to the method, all elements of the ship construction project are coordinated through a quantitative method.

Description

Technical Field

[0001] The present invention relates to the field of shipbuilding, and more particularly to a method for constructing an integrated control model of shipbuilding elements and determining their coordination degree. Background Art

[0002] Currently, most domestic shipbuilding companies are limited to managing two or three of the following elements during the shipbuilding process: progress, quality, and cost. There is little research on the comprehensive integration of the five elements of shipbuilding project progress, cost, quality, safety, and environmental protection. For shipbuilding companies that consider integrating two or three of these elements, finding a good balance between these three is not easy. This situation leads to the following problems:

[0003] (1) The three elements of shipbuilding progress, quality, and cost are interrelated and mutually constrained. If they are not coordinated well, the efficiency and benefits of shipbuilding will be seriously affected. For example, if one pursues progress unilaterally during shipbuilding, quality control may be neglected, resulting in frequent quality problems, which in turn require rework or rectification, slowing down the overall progress. If too much emphasis is placed on quality without considering progress requirements, the construction period may be extended and costs increased. Excessive quality requirements may also lead to increased costs, such as the use of more expensive materials and more complex processes.

[0004] (2) Failure to pay attention to safety and the environment often leads to serious problems such as safety accidents, project rework, and construction environmental pollution. Summary of the Invention

[0005] To solve the above problems, the present invention provides a method for constructing an integrated control model of ship construction elements and judging the degree of coordination, which solves the problems of one-sided consideration of elements, poor coordination between elements, and inability to quantitatively judge the coordination of elements during the ship construction process.

[0006] The present invention adopts the following technical solutions:

[0007] A method for constructing an integrated control model of shipbuilding elements and determining the degree of coordination, characterized by comprising the steps of:

[0008] Step 1: Based on synergetics, we identify progress, cost, quality, safety, and environmental protection as the five elements of a shipbuilding project, and construct a network structure model of the shipbuilding process synergetics.

[0009] Step 2: Analyze the influencing factors of the five subsystems of progress, cost, quality, safety and environmental protection, and determine the order parameter indicators;

[0010] Step 3: Construct the five subsystem element sets of schedule, cost, quality, safety and environmental protection;

[0011] Step 4: Analyze the relationships between the elements of schedule and cost, schedule and quality, schedule and safety, schedule and environmental protection, cost and quality, cost and safety, cost and environmental protection, quality and safety, quality and environmental protection, and safety and environmental protection, and construct a correlation table of influencing factors;

[0012] Step 5: Calculate the weight of each element and make coordinated decisions on each factor;

[0013] Step 6: Construct a shipbuilding project coordination degree calculation model, obtain the shipbuilding project system coordination degree based on the calculation of the order degree of the shipbuilding project subsystem, and use a quantitative method to realize the coordination of various elements of the shipbuilding project.

[0014] Furthermore, in step 1, a network structure model of the shipbuilding process coordination degree is constructed based on the ANP network analytic hierarchy process, in which progress, cost, quality, safety and environmental protection affect each other.

[0015] Furthermore, in step 4, the first row of the influencing factor association table represents all factors as parent nodes, the first column represents all factors as child nodes, and each column represents that the factor as the parent node is affected by the corresponding factor as the child node.

[0016] Furthermore, in step five, an evaluation team is organized to compare and score the relative importance of each element. For pairs of elements with a direct influence relationship, a 1-9 scale method is used to score them. The scoring results are collected, and a corresponding judgment matrix is ​​constructed for each pair of elements with a mutual influence relationship. The weight value of each element is determined through calculation.

[0017] Furthermore, in step 2 and step 3,

[0018] (1) Analysis of factors affecting the construction progress subsystem of shipbuilding projects and their corresponding order parameters, S1 =

[0019] {O 11 ,O 12 ,O 13 ...,O 1j}, where j is the number of influencing factors in the ship construction schedule subsystem S1, O 1j

[0020] Indicates the order parameter index of the ship construction progress subsystem;

[0021] (2) The shipbuilding cost subsystem is S2, S2 = {O 21 ,O 22 ,O 23 ...,O 2j}, where j is the number of influencing factors in subsystem S2, O 2jIndicator representing the order parameter of the shipbuilding cost subsystem;

[0022] (3) The shipbuilding quality subsystem is S3, S3 = {O 31 ,O 32 ,O 33 ...,O 3j}, where j is the number of influencing factors in subsystem S3, O 3j Represents the order parameter index of the shipbuilding quality subsystem;

[0023] (4) The shipbuilding safety subsystem is S4, S4 = {O 41 ,O 42 ,O 43 ...,O 4j}, where j is the number of influencing factors in subsystem S4, O 4j Represents the order parameter index of the shipbuilding safety subsystem;

[0024] (5) The shipbuilding environmental protection subsystem is S5, S5 = {O 51 ,O 52 ,O 53 ...,O 5j}, where j is the number of influencing factors in subsystem S5, O 5j It represents the order parameter index of the environmental protection subsystem of ship construction.

[0025] Furthermore, the dimensions of the shipbuilding project construction progress subsystem S1 include system establishment, resource allocation, process execution, uncontrollable factors and quality inspection impact; among them:

[0026] System establishment, influencing factors include:

[0027] The degree of perfection of the shipbuilding progress management system, its corresponding order parameter is O 11 , the order parameter attribute is "+"; resource allocation, influencing factors include:

[0028] The degree of matching of production materials, the corresponding order parameter is O 12 , the order parameter attribute is "+";

[0029] The adequacy of production space, the corresponding order parameter is O 13 , the order parameter attribute is "+";

[0030] Process execution, factors affecting it include:

[0031] The proportion of shipbuilding plans completed on schedule, the corresponding order parameter is O 14 , the order parameter attribute is "+";

[0032] The proportion of key tasks completed on time, the corresponding order parameter is O 15, the order parameter attribute is "+";

[0033] Uncontrollable factors include:

[0034] The number of times uncontrollable situations occur, and the corresponding order parameter is O 16 , the order parameter attribute is "-";

[0035] Quality inspection impact, influencing factors include:

[0036] The number of quality inspection items, the corresponding order parameter is O 17 , the order parameter attribute is "-";

[0037] Quality inspection level, its corresponding order parameter is O 18 , the order parameter attribute is "-";

[0038] The dimensions of the shipbuilding cost subsystem S2 include budget planning, cost control, and resource utilization; among them:

[0039] Budget planning, factors influencing it include:

[0040] The accuracy of budget preparation, the corresponding order parameter is O 21 , the order parameter attribute is "+";

[0041] Cost control, influencing factors include:

[0042] The effectiveness of cost control measures, the corresponding order parameter is O 22 , the order parameter attribute is "+";

[0043] Material cost fluctuation, the corresponding order parameter is O 23 , the order parameter attribute is "-";

[0044] Resource utilization, influencing factors include:

[0045] Resource utilization, the corresponding order parameter is O 24 , the order parameter attribute is "+";

[0046] Equipment idle rate, its corresponding order parameter is O 25 , the order parameter attribute is "-";

[0047] The dimensions of the shipbuilding quality subsystem S3 include production design standards, construction technology and quality inspection; among them:

[0048] Production design standards, influencing factors include:

[0049] The rationality of the production design standard, the corresponding order parameter is O 31 , the order parameter attribute is "+";

[0050] Construction technology, influencing factors include:

[0051] The advanced nature of the construction technology, its corresponding order parameter is O 32 , the order parameter attribute is "+";

[0052] The skill level of the construction workers, whose corresponding order parameter is O 33 , the order parameter attribute is "+";

[0053] Quality inspection, influencing factors include:

[0054] The accuracy of the detection equipment, the corresponding order parameter is O 34 , the order parameter attribute is "+";

[0055] The quality problem rectification rate, whose corresponding order parameter is O 35 , the order parameter attribute is "+";

[0056] The dimensions of the ship safety subsystem S4 include system specifications, personnel training and accident prevention; among which:

[0057] Institutional norms, influencing factors include:

[0058] The soundness of the safety management system, the corresponding order parameter is O 41 , the order parameter attribute is "+";

[0059] Personnel training, influencing factors include:

[0060] The coverage of safety training, the corresponding order parameter is O 42 , the order parameter attribute is "+";

[0061] Safety facilities equipped, the corresponding order parameter is O 43 , the order parameter attribute is "+";

[0062] Accident prevention, influencing factors include:

[0063] Safety hazard inspection rate, its corresponding order parameter is O 44 , the order parameter attribute is "+";

[0064] The accident rate, whose corresponding order parameter is O 45 , the order parameter attribute is "-";

[0065] The S5 dimension of shipbuilding environmental protection includes environmental protection measures and pollutant emissions; among which:

[0066] Environmental protection measures, influencing factors include:

[0067] The enforcement strength of environmental protection measures, whose corresponding order parameter is O 51 , the order parameter attribute is "+";

[0068] Pollutant emissions, influencing factors include:

[0069] The pollutant emission compliance rate, the corresponding order parameter is O 55 , the order parameter attribute is "+";

[0070] Resource conservation, the corresponding order parameter is O 53 , the order parameter attribute is "+";

[0071] The number of environmental complaints, whose corresponding order parameter is O 54 , the order parameter attribute is "-";

[0072] Among them, “+” indicates that the order parameter has a positive effect on the order of the subsystem, and “-” indicates that the order parameter has a negative effect on the order of the subsystem.

[0073] Furthermore, step six includes:

[0074] (1) According to the order parameter order degree calculation formula in synergetics, the order parameter O in the ship construction progress subsystem S1 is calculated. 1j The order degree U(O 1j ), and obtain the order degree U(O1) of subsystem S1 through linear weighted summation; and use this to calculate the order degrees U(O2), U(O3), U(O4), and U(O5) of subsystems S2, S3, S4, and S5 respectively;

[0075] (2) According to the order of the above subsystems, the coordination degree of the elements of the shipbuilding project at any time point t is calculated by using the coordination degree calculation formula compared with the initial stage of shipbuilding; among them, in the initial stage of shipbuilding, the shipbuilding progress subsystem

[0076] The order of S1 is U 0 (O1), the order of the ship construction cost subsystem S2 is U 0 (O2), the order of the shipbuilding quality subsystem S3 is U 0 (O3), the order degree of the shipbuilding safety subsystem S4 is U 0 (O4), the order degree of the shipbuilding environmental protection subsystem S5 is U 0 (O5); At time t, the order of the ship construction progress subsystem S1 is U t (O1), the order of the ship construction cost subsystem S2 is U t (O2), the order of the shipbuilding quality subsystem S3 is U t (O3), the order degree of the shipbuilding safety subsystem S4 is U t (O4), the order degree of the shipbuilding environmental protection subsystem S5 is U t (O5); then at time t, the coordination degree S of the shipbuilding project is calculated according to the following formula:

[0077]

[0078] in:

[0079]

[0080] When μ=1, it means that the progress, cost, quality, safety and environmental protection subsystems develop in a coordinated manner; when μ=-1, it means that the progress, cost, quality, safety and environmental protection subsystems develop in conflict with each other; S∈[-1,1], when S∈

[0081] When S∈[0,1], it indicates that the progress, cost, quality, safety and environmental protection subsystems develop in a coordinated manner. At this time, the larger the S value, the higher the degree of coordination. When S∈[-1,0], it indicates that the progress, cost, quality, safety and environmental protection subsystems do not develop in a coordinated manner. At this time, the smaller the S value, the higher the degree of discoordination.

[0082] Beneficial effects

[0083] Compared with the prior art, the present invention has the following beneficial effects:

[0084] The present invention provides a method for constructing an integrated control model for shipbuilding elements and determining their synergetics. Based on synergetics, the five elements of a shipbuilding project are identified as progress, cost, quality, safety, and environmental protection, and a five-element integrated control model is constructed. By analyzing the factors influencing the order of each subsystem of progress, cost, quality, safety, and environmental protection, the subsystem order parameter indicators are determined. Finally, a shipbuilding project synergetics calculation model is constructed. Based on the calculation of the order of the subsystems of the shipbuilding project, the system synergetics of the shipbuilding project is obtained. This is used to determine the synergetics of the elements of the shipbuilding project, and quantitatively achieves synergetics among the elements of the shipbuilding project. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] Figure 1 This is a flow chart of a method for constructing an integrated control model of shipbuilding elements and determining coordination degree according to an embodiment of the present invention.

[0086] Figure 2 This is a diagram of the network structure model of the shipbuilding process coordination degree according to an embodiment of the present invention. DETAILED DESCRIPTION

[0087] The present invention is further described below with reference to specific embodiments and accompanying drawings.

[0088] See Figure 1 The embodiment of the present invention provides a method for constructing an integrated control model of ship construction elements and judging the degree of coordination, which solves the problems of one-sided consideration of elements, poor coordination between elements, and inability to quantitatively judge the coordination status of elements in the ship construction process.

[0089] The present invention adopts the following technical solutions:

[0090] A method for constructing an integrated control model of shipbuilding elements and determining the degree of coordination, characterized by comprising the steps of:

[0091] Step 1: Based on synergetics, we identify progress, cost, quality, safety, and environmental protection as the five elements of a shipbuilding project, and construct a network structure model of the shipbuilding process synergetics.

[0092] Step 2: Analyze the influencing factors of the five subsystems of progress, cost, quality, safety and environmental protection, and determine the order parameter indicators;

[0093] Step 3: Construct the five subsystem element sets of schedule, cost, quality, safety and environmental protection;

[0094] Step 4: Analyze the relationships between the elements of schedule and cost, schedule and quality, schedule and safety, schedule and environmental protection, cost and quality, cost and safety, cost and environmental protection, quality and safety, quality and environmental protection, and safety and environmental protection, and construct a correlation table of influencing factors;

[0095] Step 5: Calculate the weight of each element and make coordinated decisions on each factor;

[0096] Step 6: Construct a shipbuilding project coordination degree calculation model, obtain the shipbuilding project system coordination degree based on the calculation of the order degree of the shipbuilding project subsystem, and use a quantitative method to realize the coordination of various elements of the shipbuilding project.

[0097] In step one, if Figure 2 As shown in the figure, based on synergetics, the five elements of shipbuilding projects are determined to be progress, cost, quality, safety and environmental protection. Progress, cost, quality, safety and environmental protection affect each other. Based on the ANP network hierarchical analysis method, a network structure model of the synergy degree of the shipbuilding process is constructed.

[0098] In step 2, the influencing factors of the five subsystems of progress, cost, quality, safety and environmental protection are analyzed to determine the ordinal parameter indicators. For example, the progress subsystem is affected by eight factors, namely, “the degree of perfection of the shipbuilding progress management system”, “the degree of matching of production materials”, “the degree of sufficiency of production sites”, “the proportion of shipbuilding plans completed on schedule”, “the proportion of key tasks completed on schedule”, “the number of uncontrollable situations such as bad weather and natural disasters”, “the number of quality inspection items”, and “the quality inspection level”. The corresponding ordinal parameter is 0. 11 ~O 18 .

[0099] As shown in Table 1. The order parameter attributes in Table 1 represent the positive and negative effects of the order parameter on the order of the subsystem, "+" indicates that the order parameter has a positive effect on the order of the subsystem, and "-" indicates that the order parameter has a negative effect on the order of the subsystem.

[0100] Table 1 Influencing factors and order parameter attributes of each subsystem of shipbuilding project

[0101]

[0102]

[0103] In step three, construct a set of five subsystem elements: schedule, cost, quality, safety and environmental protection.

[0104] The element set of the progress subsystem S1 is {O 11 , O 12 , O 13 , O 14 , O 15 , O 16 , O 17 , O 18}; The element set of cost subsystem S2 is {O 21 , O 22 , O 23 , O 24 , O 25}; The element set of the quality subsystem S3 is {O 31 , O 32 , O 33 , O 34 , O 35}; The element set of the security subsystem S4 is {O 41 , O 42 , O 43 , O 44 , O 45}; The element set of environmental protection subsystem S5 is {O 51 , O 52 , O 53 , O 54}.

[0105] In step 4, analyze the relationships between the elements in the ten relationships: schedule and cost, schedule and quality, schedule and safety, schedule and environmental protection, cost and quality, cost and safety, cost and environmental protection, quality and safety, quality and environmental protection, and safety and environmental protection. Construct an influencing factor association table. The first row in the table represents all factors as parent nodes, the first column represents all factors as child nodes, and each column indicates which child factors influence the parent factor.

[0106] For example, ① Progress and cost: the proportion of shipbuilding plans completed on schedule in the progress subsystem. 14 and the proportion of key tasks completed on schedule 15 Will affect the effectiveness of cost control measures in the cost subsystem. 22 If the schedule is delayed, it may lead to increased costs, because the extension of the construction period will increase the cost of equipment rental, labor, etc. At the same time, the accuracy of the budget preparation in the cost subsystem is 21 It will affect the resource allocation in the progress subsystem, such as the procurement time and quantity of production materials. If the budget is inaccurate, it may lead to untimely supply of production materials and affect the progress. 21 It will affect O 12 , O 13 .

[0107] ② Progress and quality: the degree of matching of production materials in the progress subsystem 12 and the adequacy of production space 13 Will affect the advancement of construction technology in the quality subsystem 32 and construction workers' skill level 33 For example, insufficient space may limit the use of advanced process equipment, thus affecting quality. 12 , O 13 It will affect O 32 , O 33 . Quality problem rectification rate in the quality subsystem 35 It will affect the progress. If the quality problems are not rectified in time, it will lead to rework and delay the progress. 35 It will affect O 14 , O 15 .

[0108] ③ Progress and safety: The number of times uncontrollable situations such as bad weather and natural disasters occur in the progress subsystem 16 Will affect the safety facilities in the safety subsystem. 43 and safety hazard detection rate O 44 For example, severe weather may damage safety facilities, which require timely inspection and replenishment, while increasing safety hazards. 16 It will affect O 43 , O 44 The soundness of the safety management system in the safety subsystem 41 It will affect the progress. A sound system will help reduce the downtime caused by safety accidents and ensure the progress. 41 It will affect O 14 , O 15 .

[0109] ④ Progress and environmental protection: the number of quality inspection items in the progress subsystem O 17and quality inspection level O 18 Will affect the implementation of environmental protection measures in the environmental protection subsystem 51 For example, if environmental issues are discovered during quality inspection, it may prompt the strengthening of environmental protection measures. 17 , O 18 It will affect O 51 The number of environmental complaints in the environmental protection subsystem O 54 It may affect the progress. If there is a complaint due to environmental problems, it may be necessary to stop work for rectification, which will affect the progress. 54 It will affect O 14 , O 15 .

[0110] ⑤ Cost and quality: Material cost fluctuations in the cost subsystem 23 Will affect the rationality of production design standards in the quality subsystem. 31 If the material cost fluctuates significantly, it may prompt the company to adjust the design standards to take cost factors into consideration during design, thus affecting the quality. 34 It will affect the cost. Accurate testing equipment can help to find quality problems in time and avoid the cost increase caused by quality problems. 34 It will affect O 22 .

[0111] ⑥ Cost and safety: resource utilization in the cost subsystem 24 Will affect the coverage of safety training in the safety subsystem 42 For example, if the resource utilization rate is high and the economic benefits of the enterprise are good, more funds may be invested in safety training. 43 It will affect the cost. The purchase and maintenance of safety facilities require cost investment, so O 43 It will affect O 22 .

[0112] ⑦ Cost and Environmental Protection: The Accuracy of Budget Preparation in the Cost Subsystem 21 Will affect the resource conservation in the environmental protection subsystem. 53 . Accurate budget helps to plan resources rationally and promote resource conservation, so O 21 It will affect O 53 The pollutant emission compliance rate in the environmental protection subsystem is O 52 It will affect the cost. If the pollutant emissions do not meet the standards, there may be fines and other increased costs. 52 It will affect O 22 .

[0113] ⑧Quality and safety: the advancement of construction technology in the quality subsystem 32and construction workers' skill level 33 Will affect the accident rate in the safety subsystem 45 Advanced technology and highly skilled personnel can help reduce safety accidents caused by construction quality problems, so O 32 , O 33 It will affect O 45 . Coverage of safety training in the safety subsystem 42 It will affect the quality. Improving the safety awareness of construction workers will help ensure the quality of construction. 42 It will affect O 33 .

[0114] ⑨Quality and environmental protection: rationality of production design standards in the quality subsystem 31 Will affect the resource conservation in the environmental protection subsystem. 53 Reasonable design standards can optimize material usage and save resources, so O 31 It will affect O 53 The enforcement of environmental protection measures in the environmental protection subsystem 51 Will affect the quality, good environmental protection measures will help to ensure the construction environment and improve the quality, so O 51 It will affect O 33 .

[0115] ⑩Safety and environmental protection: Safety facilities in the safety subsystem 43 Will affect the pollutant emission compliance rate in the environmental protection subsystem 52 For example, the deployment and use of safety facilities such as fire-fighting equipment may affect pollutant emissions, so O 43 It will affect O 52 The number of environmental complaints in the environmental protection subsystem O 54 It will affect safety. Complaints caused by environmental problems may lead to construction obstruction and affect safety management. 54 It will affect O 41 .

[0116] Based on the analysis of the relationships between the elements in the ten pairs of relationships, namely, progress and cost, progress and quality, progress and safety, progress and environmental protection, cost and quality, cost and safety, cost and environmental protection, quality and safety, quality and environmental protection, and safety and environmental protection, the influencing factor association table shown in Table 2 is constructed. The first row in the table represents all factors as parent nodes, the first column represents all factors as child nodes, and each column represents which factors as child nodes affect the factors as parent nodes.

[0117] Table 2 Subsystem influencing factors correlation table

[0118]

[0119] In step five, an expert team is organized, including ship design experts, ship construction engineers, project management experts, safety experts, and environmental protection experts. They are invited to compare and score the relative importance of each element. For pairs of elements with direct influence, a 1-9 scale is used to score. The expert scoring results are collected, and a corresponding judgment matrix is ​​constructed for each pair of elements with mutual influence. The weight value of each element is determined through calculation. For example, for O 11 To O 21 Experts will judge the extent of the impact based on their experience and professional knowledge. 11 To O 21 If the impact is relatively strong, a score of 7 may be given; conversely, if the impact is relatively small, a score of 3 may be given.

[0120] Collect expert scoring results and construct a judgment matrix. 11 , O 21 For example, let a ij Indicates O 1i To O 2j The relative importance of (i = 1 means O 11 , j=1 means O 21 ), then construct the judgment matrix where a 12 The value obtained by the expert scoring. For each pair of elements that have a mutual influence relationship, a corresponding judgment matrix is ​​constructed.

[0121] Through calculation, the weight value of each element can be determined, as shown in Table 3.

[0122] Table 3 Weight values ​​of each element

[0123]

[0124]

[0125] Based on the calculated weights of each element, coordination decisions are made for each factor.

[0126] Taking the coordination decision of schedule and cost as an example, the coordination decision of each pair of elements is explained.

[0127] ①The degree of perfection of the shipbuilding progress management system ( 11 ) and budget preparation accuracy (O 21 )

[0128] Weight comparison: O 11 The weight is 0.04, O 21 The weight is 0.05;

[0129] During the project planning phase, budget accuracy is crucial. This is because an accurate budget is the economic foundation for a smooth project. Without a reasonable budget, the schedule management system will be difficult to implement effectively. Therefore, ensure a reasonable budget first, then refine the schedule management system based on the budget.

[0130] ②The degree of perfection of the shipbuilding progress management system ( 11 ) and the effectiveness of cost control measures ( 22 )

[0131] Weight comparison: O 11 The weight is 0.04, O 22 The weight is 0.07;

[0132] When optimizing the schedule management system and strengthening cost control measures create competition for resources, prioritize the effectiveness of cost control measures, as poor cost control can lead to a breakdown in the funding chain, which in turn can affect the entire project schedule.

[0133] ③The degree of perfection of the shipbuilding progress management system ( 11 ) and material cost fluctuations (O 23 )

[0134] Weight comparison: O 11 The weight is 0.04, O 23 The weight is 0.04;

[0135] If material cost fluctuations could impact the implementation of the schedule management system (e.g., changes in funding allocation), comprehensive considerations are necessary. If the fluctuations are large and have a significant impact on costs, stabilize material costs first. If improvements to the schedule management system can effectively address cost fluctuations, then improve the schedule management system first.

[0136] ④The degree of perfection of the shipbuilding progress management system ( 11 ) and resource utilization (O 24 )

[0137] Weight comparison: O 11 The weight is 0.04, O 24 The weight is 0.02;

[0138] When low resource utilization affects progress, since the degree of perfection of the progress management system has a higher weight, priority should be given to improving the progress management system, and resource utilization can be indirectly improved through reasonable progress arrangements.

[0139] ⑤The degree of perfection of the shipbuilding progress management system ( 11 ) and equipment idle rate (O 25 )

[0140] Weight comparison: O 11 The weight is 0.04, O25 The weight is 0.02;

[0141] If equipment idleness affects progress management, start with the progress management system, such as optimizing the equipment scheduling plan, while considering reducing the equipment idle rate, but the improvement of the progress management system is the priority consideration.

[0142] ⑥ The degree of matching of production materials (O 12 ) and budget preparation accuracy (O 21 )

[0143] Weight comparison: O 12 The weight is 0.04, O 21 The weight is 0.05;

[0144] When preparing a budget, fully consider the funds needed to procure the necessary means of production. If budget constraints affect the procuring of the necessary means of production, prioritize budget accuracy to ensure sufficient funds for the procurement of the appropriate means of production.

[0145] The coordination decisions on the degree of production materials matching and the effectiveness of cost control measures, the degree of production materials matching and material cost fluctuations, the degree of production materials matching and resource utilization, the degree of production materials matching and equipment idle rate, the degree of production site adequacy and the accuracy of budget preparation can refer to the coordination decisions of the above six pairs of elements and will not be repeated here.

[0146] In step six, a shipbuilding project coordination degree calculation model is constructed. The system coordination degree of the shipbuilding project is obtained based on the calculation of the order degree of the shipbuilding project subsystem. This is used to judge the coordination of the elements of the shipbuilding project and to achieve the coordination of the elements of the shipbuilding project using a quantitative method.

[0147] Taking subsystem S1 as an example, the order parameter O in the shipbuilding progress subsystem S1 can be calculated according to the order parameter order calculation formula in synergetics. 1j The order degree U(O 1j ), and through linear weighted summation, we can get the order U(O1) of subsystem S1. The same method can be used to calculate the order U(O2), U(O3), U(O5), and U(O4) of subsystems S2, S3, S4, and S5.

[0148] According to the order of the above subsystems, compared with the initial stage of ship construction, the coordination degree calculation formula can be used to calculate the coordination degree of the elements of the ship construction project at any time point t. Assumption: In the initial stage of ship construction, the order of the ship construction progress subsystem S1 is U 0 (O1), the order of the ship construction cost subsystem S2 is U 0 (O2), the order of the shipbuilding quality subsystem S3 is U 0(O3), the order degree of the shipbuilding safety subsystem S4 is U 0 (O4), the order degree of the shipbuilding environmental protection subsystem S5 is U 0 (O5); At time t, the order of the ship construction progress subsystem S1 is U t (O1), the order of the ship construction cost subsystem S2 is U t (O2), the order of the shipbuilding quality subsystem S3 is U t (O3), the order degree of the shipbuilding safety subsystem S4 is U t (O4), the order degree of the shipbuilding environmental protection subsystem S5 is U t (O5).

[0149] At time t, the coordination degree S of the shipbuilding project can be calculated according to the following formula.

[0150]

[0151] in:

[0152]

[0153] The synergy S value calculated using the above formula can be used to quantitatively determine the synergy between the elements of a shipbuilding project. When μ = 1, it indicates that the progress, cost, quality, safety, and environmental protection subsystems are developing in a coordinated manner; when μ = -1, it indicates that the progress, cost, quality, safety, and environmental protection subsystems are developing in a contradictory manner, that is, they are not synergistic. S∈[-1,1], when S∈[0,1], it indicates that the progress, cost, quality, safety, and environmental protection subsystems are developing in a coordinated manner. In this case, a larger S value indicates a higher degree of synergy. When S∈[-1,0], it indicates that the progress, cost, quality, safety, and environmental protection subsystems are not developing in a coordinated manner. In this case, a smaller S value indicates a higher degree of dissynergy.

[0154] Assume that at the beginning of the project, the order of each system is:

[0155] Ship Construction Progress Subsystem U 0 (O1) = 0.4;

[0156] Ship construction cost subsystem U 0 (O2) = 0.5;

[0157] Shipbuilding quality subsystem U 0 (O3) = 0.45;

[0158] Shipbuilding Safety Subsystem U 0 (O4) = 0.55;

[0159] Shipbuilding Environmental Protection Subsystem U 0(O5)=0.48.

[0160] At a certain point in the project, the order of each subsystem becomes:

[0161] Ship Construction Progress Subsystem U t (O1) = 0.6;

[0162] Ship construction cost subsystem U t (O2) = 0.55;

[0163] Shipbuilding quality subsystem U t (O3) = 0.5;

[0164] Shipbuilding Safety Subsystem U t (O4) = 0.6;

[0165] Shipbuilding Environmental Protection Subsystem U t (O5)=0.52.

[0166] Substitute into the formula Calculation is performed in .

[0167] Calculation can be obtained: Then μ=1

[0168]

[0169] but

[0170] According to the calculation results, it can be concluded that when the project reaches this moment, the five elements of progress, cost, quality, safety and environmental protection develop in a coordinated manner, but the degree of coordinated development is not very high.

[0171] The examples described in the present invention are merely descriptions of the preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field should fall within the scope of protection of the present invention.

Claims

1. A method for constructing an integrated control model of shipbuilding elements and determining the degree of coordination, characterized in that: Including steps: Step 1: Based on synergetics, we identify progress, cost, quality, safety, and environmental protection as the five elements of a shipbuilding project, and construct a network structure model of the shipbuilding process synergetics. Step 2: Analyze the influencing factors of the five subsystems of progress, cost, quality, safety and environmental protection, and determine the order parameter indicators; Step 3: Construct the five subsystem element sets of schedule, cost, quality, safety and environmental protection; Step 4: Analyze the relationships between the elements of schedule and cost, schedule and quality, schedule and safety, schedule and environmental protection, cost and quality, cost and safety, cost and environmental protection, quality and safety, quality and environmental protection, and safety and environmental protection, and construct a correlation table of influencing factors; Step 5: Calculate the weight of each element and make coordinated decisions on each factor; Step 6: Construct a shipbuilding project coordination degree calculation model, obtain the shipbuilding project system coordination degree based on the calculation of the order degree of the shipbuilding project subsystem, and use a quantitative method to realize the coordination of various elements of the shipbuilding project.

2. The method for constructing an integrated control model of shipbuilding elements and determining the degree of coordination according to claim 1 is characterized in that: In step 1, a network structure model of the shipbuilding process coordination degree is constructed based on the ANP network analytic hierarchy process, in which progress, cost, quality, safety and environmental protection affect each other.

3. The method for constructing an integrated control model of shipbuilding elements and determining the degree of coordination according to claim 1 is characterized in that: In step 4, the first row in the influencing factor association table represents all factors as parent nodes, the first column represents all factors as child nodes, and each column represents that the factor as the parent node is affected by the corresponding factor as the child node.

4. The method for constructing an integrated control model of shipbuilding elements and determining the degree of coordination according to claim 1 is characterized in that: In step five, organize an evaluation team to compare and score the relative importance of each element. For pairs of elements with a direct influence relationship, use the 1-9 scale method to score, collect the scoring results, and construct a corresponding judgment matrix for each pair of elements with a mutual influence relationship. Through calculation, determine the weight value of each element.

5. The method for constructing an integrated control model of shipbuilding elements and determining the degree of coordination according to claim 1 is characterized in that: In steps 2 and 3, (1) Analysis of the factors affecting the construction progress subsystem of shipbuilding projects and their corresponding order parameters, S1 = {O 11 , O 12 , O 13 ......, O 1j }, where j is the number of influencing factors in the ship construction schedule subsystem S1, O 1j Indicates the order parameter index of the ship construction progress subsystem; (2) The shipbuilding cost subsystem is S2, S2 = {O 21 , O 22 , O 23 ......, O 2j }, where j is the number of influencing factors in subsystem S2, O 2j Indicator representing the order parameter of the shipbuilding cost subsystem; (3) The shipbuilding quality subsystem is S3, S3 = {O 31 , O 32 , O 33 ......, O3j}, where j is the number of influencing factors in subsystem S3, O 3j Represents the order parameter index of the shipbuilding quality subsystem; (4) The shipbuilding safety subsystem is S4, S4 = {O 41 , O 42 , O 43 ......, O 4j }, where j is the number of influencing factors in subsystem S4, O 4j Represents the order parameter index of the shipbuilding safety subsystem; (5) The shipbuilding environmental protection subsystem is S5, S5 = {O 51 , O 52 , O 53 ......, O 5j }, where j is the number of influencing factors in subsystem S5, O 5j It represents the order parameter index of the environmental protection subsystem of ship construction.

6. The method for constructing an integrated control model of shipbuilding elements and determining the degree of coordination according to claim 5 is characterized in that: The dimensions of the shipbuilding project construction schedule subsystem S1 include system establishment, resource allocation, process execution, uncontrollable factors and quality inspection impact; among them: System establishment, influencing factors include: The degree of perfection of the shipbuilding progress management system, its corresponding order parameter is O 11 , the order parameter attribute is "+"; Resource allocation, influencing factors include: The degree of matching of production materials, the corresponding order parameter is O 12 , the order parameter attribute is "+"; The adequacy of production space, the corresponding order parameter is O 13 , the order parameter attribute is "+"; Process execution, factors affecting it include: The proportion of shipbuilding plans completed on schedule, the corresponding order parameter is O 14 , the order parameter attribute is "+"; The proportion of key tasks completed on time, the corresponding order parameter is O 15 , the order parameter attribute is "+"; Uncontrollable factors include: The number of times uncontrollable situations occur, and the corresponding order parameter is O 16 , the order parameter attribute is "-"; Quality inspection impact, influencing factors include: The number of quality inspection items, the corresponding order parameter is O 17 , the order parameter attribute is "-"; Quality inspection level, its corresponding order parameter is O 18 , the order parameter attribute is "-"; The dimensions of the shipbuilding cost subsystem S2 include budget planning, cost control, and resource utilization; among them: Budget planning, factors influencing it include: The accuracy of budget preparation, the corresponding order parameter is O 21 , the order parameter attribute is "+"; Cost control, influencing factors include: The effectiveness of cost control measures, the corresponding order parameter is O 22 , the order parameter attribute is "+"; Material cost fluctuation, the corresponding order parameter is O 23 , the order parameter attribute is "-"; Resource utilization, influencing factors include: Resource utilization, the corresponding order parameter is O 24 , the order parameter attribute is "+"; Equipment idle rate, its corresponding order parameter is 0 25 , the order parameter attribute is "-"; The dimensions of the shipbuilding quality subsystem S3 include production design standards, construction technology and quality inspection; among them: Production design standards, influencing factors include: The rationality of the production design standard, the corresponding order parameter is O 31 , the order parameter attribute is "+"; Construction technology, influencing factors include: The advanced nature of the construction technology, its corresponding order parameter is O 32 , the order parameter attribute is "+"; The skill level of the construction workers, whose corresponding order parameter is O 33 , the order parameter attribute is "+"; Quality inspection, influencing factors include: The accuracy of the detection equipment, the corresponding order parameter is O 34 , the order parameter attribute is "+"; The quality problem rectification rate, whose corresponding order parameter is O 35 , the order parameter attribute is "+"; The dimensions of the ship safety subsystem S4 include system specifications, personnel training and accident prevention; among which: Institutional norms, influencing factors include: The soundness of the safety management system, the corresponding order parameter is O 41 , the order parameter attribute is "+"; Personnel training, influencing factors include: The coverage of safety training, the corresponding order parameter is O 42 , the order parameter attribute is "+"; Safety facilities equipped, the corresponding order parameter is O 43 , the order parameter attribute is "+"; Accident prevention, influencing factors include: Safety hazard inspection rate, its corresponding order parameter is O 44 , the order parameter attribute is "+"; The accident rate, whose corresponding order parameter is O 45 , the order parameter attribute is "-"; The S5 dimension of shipbuilding environmental protection includes environmental protection measures and pollutant emissions; among which: Environmental protection measures, influencing factors include: The enforcement strength of environmental protection measures, whose corresponding order parameter is O 51 , the order parameter attribute is "+"; Pollutant emissions, influencing factors include: The pollutant emission compliance rate, the corresponding order parameter is O 55 , the order parameter attribute is "+"; Resource conservation, the corresponding order parameter is O 53 , the order parameter attribute is "+"; The number of environmental complaints, whose corresponding order parameter is O 54 , the order parameter attribute is "-"; Among them, "+" indicates that the order parameter has a positive effect on the order of the subsystem, and "" indicates that the order parameter has a negative effect on the order of the subsystem.

7. The method for constructing an integrated control model of shipbuilding elements and determining the degree of coordination according to claim 6 is characterized in that: Step six includes: (1) According to the order parameter order degree calculation formula in synergetics, the order parameter O in the ship construction progress subsystem S1 is calculated. 1j The order degree U(O 1j ), and obtain the order degree U(O1) of subsystem S1 through linear weighted summation; and use this to calculate the order degrees U(O2), U(O3), U(O4), and U(O5) of subsystems S2, S3, S4, and S5 respectively; (2) Based on the order of the above subsystems, the coordination degree of the elements of the shipbuilding project at any time point t is calculated by using the coordination degree calculation formula compared with the initial stage of shipbuilding; among them, in the initial stage of shipbuilding, the order of the shipbuilding progress subsystem S1 is U 0 (O1), the order of the ship construction cost subsystem S2 is U 0 (O2), the order of the shipbuilding quality subsystem S3 is U 0 (O3), the order degree of the shipbuilding safety subsystem S4 is U 0 (O4), the order degree of the shipbuilding environmental protection subsystem S5 is U 0 (O5); At time t, the order of the ship construction progress subsystem S1 is U t (O1), the order of the ship construction cost subsystem S2 is U t (O2), the order of the shipbuilding quality subsystem S3 is U t (O3), the order degree of the shipbuilding safety subsystem S4 is U t (O4), the order degree of the shipbuilding environmental protection subsystem S5 is U t (O5); then at time t, the coordination degree S of the shipbuilding project is calculated according to the following formula: in: When μ=1, it indicates that the progress, cost, quality, safety and environmental protection subsystems develop in a coordinated manner; when μ=-1, it indicates that the progress, cost, quality, safety and environmental protection subsystems develop in a counter-productive manner; S∈[-1, 1], when S∈[0, 1], it indicates that the progress, cost, quality, safety and environmental protection subsystems develop in a coordinated manner, and the larger the S value, the higher the degree of coordination; when S∈[-1, 0], it indicates that the progress, cost, quality, safety and environmental protection subsystems do not develop in a coordinated manner, and the smaller the S value, the higher the degree of discoordination.

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