CN114547781B - Marine mast performance evaluation method and system based on virtual reality - Google Patents
Marine mast performance evaluation method and system based on virtual reality Download PDFInfo
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Abstract
The invention provides a marine mast performance evaluation method and system based on virtual reality, wherein the method comprises the following steps: data acquisition is carried out on the first mast, and a three-dimensional structure scanning result is obtained; performing three-dimensional solid modeling to obtain a first mast solid model; constructing an environment and task data set; building a first virtual test platform, and implanting the first mast entity model into the first virtual test platform to obtain environment test list information and task test list information; virtual testing is carried out on the first mast based on the test list information and the first virtual test platform; and carrying out mechanical analysis and hazard analysis on the test result to obtain a first analysis result set and a second analysis result set, and carrying out performance evaluation on the first mast. The technical problems that the method for evaluating the performance of the mast is poor in intuitiveness, the performance evaluation accuracy of the mast in an actual application scene is low, and the evaluation work difficulty is high are solved.
Description
Technical Field
The invention relates to the field of artificial intelligence, in particular to a marine mast performance evaluation method and system based on virtual reality.
Background
The use of the marine mast can be traced back to the sailing age for hanging sails at the earliest, and along with the development of the age, the effect of the mast is changed, and the mast is used for hanging banners, installing antennas, installing signal lamps and providing a mounting platform for radar and other equipment. As the effect of the mast becomes more and more diverse, the structure of the mast becomes more and more complex, and higher demands are also being made on the quality, stability, etc. of the mast. Because the mast has large volume and complex structure, when the mast is subjected to performance evaluation in the actual production process, the working difficulty is high, and the safety performance of the mast in the use process cannot be accurately controlled. Moreover, the mast performance evaluation work is time-consuming and labor-consuming, and the evaluation cannot be repeated for a plurality of times.
The technical problems of poor intuitiveness of the mast performance evaluation method, low performance evaluation accuracy of the mast in an actual application scene and higher evaluation work difficulty exist in the prior art.
Disclosure of Invention
The application provides a method and a system for evaluating the performance of a marine mast based on virtual reality, which solve the technical problems of poor intuitiveness of the mast performance evaluation method, low performance evaluation accuracy of the mast in an actual application scene and higher evaluation work difficulty in the prior art. The technical effects that a technician can more intuitively evaluate the performance of the marine mast through the virtual reality technology, and meanwhile, the performance of the mast in a specific application scene can be reliably evaluated through the construction of a virtual scene, so that the evaluation work difficulty is reduced are achieved.
In view of the above problems, the application provides a marine mast performance evaluation method and system based on virtual reality.
In a first aspect, the application provides a method for evaluating performance of a marine mast based on virtual reality, wherein the method comprises the following steps: based on a three-dimensional laser scanning technology, acquiring data of a first mast to obtain a three-dimensional structure scanning result of the first mast; performing point cloud data processing and three-dimensional solid modeling on the three-dimensional structure scanning result to obtain a first mast solid model; constructing an environment data set and a task data set based on the application information of the first mast; building a first virtual test platform according to the environment data set and the task data set, and implanting the first mast entity model into the first virtual test platform; acquiring environment test list information and task test list information based on the environment data set and the task data set; performing virtual testing on the first mast in the first virtual testing platform based on the environment testing list information and the task testing list information; performing mechanical analysis and hazard analysis on the virtual test result of the first mast to obtain a first analysis result set and a second analysis result set; and performing performance evaluation on the first mast based on the first analysis result set and the second analysis result set.
In another aspect, the application provides a system for evaluating performance of a marine mast based on virtual reality, wherein the system comprises: the first acquisition unit is used for acquiring data of the first mast based on a three-dimensional laser scanning technology and acquiring a three-dimensional structure scanning result of the first mast; the second obtaining unit is used for carrying out point cloud data processing and three-dimensional entity modeling on the three-dimensional structure scanning result to obtain a first mast entity model; a first construction unit for constructing an environment data set and a task data set based on the application information of the first mast; the first execution unit is used for building a first virtual test platform according to the environment data set and the task data set, and implanting the first mast entity model into the first virtual test platform; the third obtaining unit is used for obtaining environment test list information and task test list information based on the environment data set and the task data set; the second execution unit is used for carrying out virtual test on the first mast in the first virtual test platform based on the environment test list information and the task test list information; the fourth obtaining unit is used for carrying out mechanical analysis and hazard analysis on the virtual test result of the first mast to obtain a first analysis result set and a second analysis result set; and the third execution unit is used for evaluating the performance of the first mast based on the first analysis result set and the second analysis result set.
In a third aspect, the present application provides a system for virtual reality based performance evaluation of a marine mast, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method of any one of the first aspects when the program is executed.
One or more technical schemes provided by the application have at least the following technical effects or advantages:
the data acquisition is carried out on the first mast, so that a three-dimensional structure scanning result is obtained; performing point cloud data processing and three-dimensional solid modeling to obtain a first mast solid model; constructing an environment data set and a task data set; building a first virtual test platform according to the environment data set and the task data set, and implanting the first mast entity model into the first virtual test platform to further obtain environment test list information and task test list information; virtual testing is carried out on the first mast based on the test list information and the first virtual test platform; the application provides a marine mast performance evaluation method and system based on virtual reality, which achieve the technical effects that technicians can more intuitively evaluate the performance of the marine mast through virtual reality technology, and meanwhile, the performance of the mast in a specific application scene can be reliably evaluated through virtual scene construction, so that the evaluation work difficulty is reduced.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
Drawings
FIG. 1 is a schematic flow chart of a method for evaluating performance of a marine mast based on virtual reality according to an embodiment of the application;
fig. 2 is a schematic flow chart of obtaining a first analysis result set according to a virtual reality-based marine mast performance evaluation method according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of a method for evaluating performance of a marine mast based on virtual reality to obtain a second analysis result set according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a system for evaluating performance of a marine mast based on virtual reality according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an exemplary electronic device according to an embodiment of the present application.
Reference numerals illustrate: the device comprises a first obtaining unit 11, a second obtaining unit 12, a first constructing unit 13, a first executing unit 14, a third obtaining unit 15, a second executing unit 16, a fourth obtaining unit 17, a third executing unit 18, an electronic device 300, a memory 301, a processor 302, a communication interface 303, and a bus architecture 304.
Detailed Description
The application provides a method and a system for evaluating the performance of a marine mast based on virtual reality, which solve the technical problems of poor intuitiveness of the mast performance evaluation method, low performance evaluation accuracy of the mast in an actual application scene and higher evaluation work difficulty in the prior art. The technical effects that a technician can more intuitively evaluate the performance of the marine mast through the virtual reality technology, and meanwhile, the performance of the mast in a specific application scene can be reliably evaluated through the construction of a virtual scene, so that the evaluation work difficulty is reduced are achieved.
As the effect of the mast becomes more and more diverse, the structure of the mast becomes more and more complex, and higher demands are also being made on the quality, stability, etc. of the mast. Because the mast has large volume and complex structure, when the mast is subjected to performance evaluation in the actual production process, the working difficulty is high, and the safety performance of the mast in the use process cannot be accurately controlled. Moreover, the mast performance evaluation work is time-consuming and labor-consuming, and the evaluation cannot be repeated for a plurality of times. The existing mast performance evaluation technology has the technical problems that the intuitiveness of the mast performance evaluation method is poor, the performance evaluation accuracy of the mast in the actual application scene is low, and the evaluation work difficulty is high.
Aiming at the technical problems, the technical scheme provided by the application has the following overall thought:
the application provides a marine mast performance evaluation method based on virtual reality, wherein the method comprises the following steps: data acquisition is carried out on the first mast, and a three-dimensional structure scanning result is obtained; performing point cloud data processing and three-dimensional solid modeling to obtain a first mast solid model; constructing an environment data set and a task data set; building a first virtual test platform according to the environment data set and the task data set, and implanting the first mast entity model into the first virtual test platform to further obtain environment test list information and task test list information; virtual testing is carried out on the first mast based on the test list information and the first virtual test platform; and carrying out mechanical analysis and hazard analysis on the test result to obtain a first analysis result set and a second analysis result set, and carrying out performance evaluation on the first mast.
Having described the basic principles of the present application, various non-limiting embodiments of the present application will now be described in detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1, an embodiment of the present application provides a method for evaluating performance of a marine mast based on virtual reality, where the method includes:
S100: based on a three-dimensional laser scanning technology, acquiring data of a first mast to obtain a three-dimensional structure scanning result of the first mast;
s200: performing point cloud data processing and three-dimensional solid modeling on the three-dimensional structure scanning result to obtain a first mast solid model;
specifically, in order to build a three-dimensional visualization model, a solid mast, i.e. the first mast, is first scanned using a three-dimensional laser technique. The first mast is any mast produced by any enterprise. And the texture photo obtained by scanning and the original point cloud data form a three-dimensional structure scanning result of the first mast. And further performing operations such as noise reduction, cutting, simplification, registration and the like on the point cloud data, obtaining a relatively complete model through a topological relation, and mapping the texture photo and the model to obtain the first mast entity model. By establishing the three-dimensional model, the mast can be visualized in a three-dimensional space, so that convenience in mast quality and performance verification and detection is improved, and the visualization degree in mast performance evaluation is improved.
S300: constructing an environment data set and a task data set based on the application information of the first mast;
S400: building a first virtual test platform according to the environment data set and the task data set, and implanting the first mast entity model into the first virtual test platform;
in particular, the application information of the first mast includes, but is not limited to, the application scenario and the task in charge of the mast. The tasks responsible for this can be understood as the uses, such as: providing a supporting platform, lifting observing and communicating equipment and the like for radar and other equipment. And thus constructing an environment data set and a task data set according to the specific application information of the first mast. The environment data set comprises wind power data, air humidity data, PH value data and the like. The task data set is set according to the specific task of the first mast, as an example without limitation: if the first mast is responsible for supporting, the task data is the mass of the bearing object; if the first mast is responsible for lifting, the task data is lifting distance data.
Setting up a virtual test platform by taking the environment data set and the task data set as virtualized resources, wherein the virtual test platform is exemplified by: and constructing an application environment module and an application task module by using various data in the real application environment, and constructing a virtual test platform through the application environment module and the application task module. After the test environment is built, the built first mast entity model is imported into the first virtual test platform, namely, the first mast entity model is built first, and a final virtual test platform is built together through the first mast entity model and a pre-built basic virtual environment through a virtual reality technology. The first virtual test platform can simulate various environments and task processes of the first mast in the actual application process, and achieves the technical effect of laying a foundation for reliable and efficient evaluation of the application performance of the first mast.
S500: acquiring environment test list information and task test list information based on the environment data set and the task data set;
s600: performing virtual testing on the first mast in the first virtual testing platform based on the environment testing list information and the task testing list information;
in particular, different levels of environmental information are obtained according to the extent to which the environmental data affects the mast in the set of environmental data, thereby constructing the environmental test list information, for example: wind test lists are constructed using wind of different wind levels. And obtaining tasks with different grades according to the influence degree of different task data on the mast, and forming the task test list information. And performing virtual simulation test on the first mast according to the constructed environment test list information and the task test list information. Examples are: 8-level wind power test, 10-level wind power test, different-level bearing test and the like.
S700: performing mechanical analysis and hazard analysis on the virtual test result of the first mast to obtain a first analysis result set and a second analysis result set;
s800: and performing performance evaluation on the first mast based on the first analysis result set and the second analysis result set.
Further, as shown in fig. 2, the embodiment S700 of the present application further includes:
s710: performing grid division based on the first mast solid model, and obtaining a finite element model of the first mast after setting working conditions;
s720: based on the virtual test result of the first mast, carrying out statics analysis on the finite element model to obtain a displacement analysis result;
s730: performing vibration mode analysis on the finite element model to obtain a displacement deformation analysis result;
s740: and obtaining the first analysis result set based on the displacement analysis result and the displacement deformation analysis result.
Further, as shown in fig. 3, step S700 of the embodiment of the present application further includes:
s751: obtaining fault information and connection relation of each part of the first mast;
s752: constructing a first logical relationship database based on the fault information of each part, the connection relationship and the overall fault information of the first mast;
s753: dividing importance of each part of the first mast to obtain a part importance analysis result;
s754: performing risk assessment on the fault information of each part to obtain a risk assessment result;
s755: constructing a reliability analysis model based on the first logic relation database, the part importance analysis result and the risk assessment result;
S756: and carrying out hazard analysis on the virtual test result of the first mast according to the reliability analysis model to obtain the second analysis result set.
Specifically, multiple groups of virtual tests are performed, a virtual test result set is collected, and mast mechanics analysis and mast harmfulness analysis are performed. The mechanical analysis preferably uses finite element analysis technology, and the hazard analysis is based on the components and the connection relation of the mast, so as to analyze the overall hazard of the mast. The mechanical analysis result set is the first analysis result set, and the hazard analysis result is the second analysis result set.
During mechanical analysis, firstly, the first mast solid model is subjected to grid division, namely, the problem of overall complexity of the model is divided into finite units which have different finite sizes and shapes and are connected with each other, and the finite element model of the first mast is obtained after working condition setting is performed through computer simulation software. And carrying out statics analysis on the finite element model, wherein the statics analysis is mainly used for analyzing stress conditions in a virtual test project, and the mechanical analysis can be carried out through the existing analysis software. Further obtaining a mechanical analysis result, and representing a statics analysis result by using displacement generated by the stress of the first mast, wherein the larger the displacement is, the larger the stress is, so as to obtain the displacement analysis result. In order to avoid resonance, the natural frequency of the mast is measured by adopting the finite element model, namely vibration modal analysis is performed, and resonance phenomenon is prevented. And obtaining a displacement deformation analysis result by software analysis, wherein the displacement deformation analysis result comprises a modal analysis result and a displacement deformation result of the mast, and analyzing natural frequencies under different external conditions according to the displacement deformation analysis result. The displacement analysis result and the displacement deformation analysis result form the first analysis result set.
The damage analysis is carried out by constructing a reliability analysis model, and firstly, fault analysis and connection relation analysis are carried out on all parts forming the first mast, so that possible fault information of the parts and connection relations among the parts are mastered. And constructing a first logic relation database through the relevance between the integral faults and the local faults, namely the logic relation between the first mast systematic faults, the fault information of each part and the fault information of a plurality of part combinations. And carrying out importance division on each part aiming at the structure of the first mast, and carrying out risk assessment of fault information. The importance division can be performed according to the importance degree of the parts to the whole mast function; risk assessment may be based on the risk of the part failing to compromise the overall mast. And constructing a reliability analysis model according to the first logic relation database, the part importance analysis result and the risk assessment result. And obtaining test fault information of the part according to the virtual test result, and evaluating the first mast harmfulness in the virtual test result according to the importance of the part, the harmfulness of the part risk to the overall fault and the logic relation database of the part fault and the overall system fault to obtain a second analysis result set. The technical effect of improving the scientificity and the accuracy of the hazard evaluation can be achieved.
And the first mast is subjected to performance evaluation by integrating the first analysis result set and the second analysis result set, so that the use danger of the first mast caused by the quality problem of the mast and risk factors brought by the manufacturing process is timely found through the analysis of mechanical analysis and risk analysis of the virtual test result.
Further, the embodiment S200 of the present application further includes:
s210: obtaining a point cloud data set of the three-dimensional structure scanning result;
s220: obtaining curvature information and reduced proportion threshold information of the first mast;
s230: and based on the curvature information of the first mast and the reduction ratio threshold information, performing point cloud data reduction on the point cloud data set according to the curvature negative correlation.
Specifically, because the model of the first mast has certain complexity, a large amount of point cloud data can be obtained during three-dimensional laser scanning, so that the data amount is redundant during three-dimensional model construction, and the model construction efficiency is reduced. There is a need to streamline point cloud data. Collecting curvature information of the first mast, presetting reduced proportion threshold value information, wherein the reduced proportion threshold value information corresponds to the curvature information, and manually setting by technicians; where the curvature is larger, the thin-scale threshold information is smaller. As an example, without limitation: where the curvature is low, the thin-scale threshold may be set to 90%, and where the curvature is high, the thin-scale threshold may be set to 10%. The point cloud data is reduced according to the curvature negative correlation, and the data is reduced according to the reduced proportion threshold information correspondingly set by different curvatures, so that the data volume of the point cloud data is reduced, and the effect of better retaining the surface characteristics of the model is achieved.
Further, the embodiment S300 of the present application further includes:
s310: acquiring application region information and application season information based on the application information of the first mast;
s320: acquiring a weather parameter threshold based on the application region information and the application season information;
s330: according to the weather parameter threshold, weather data combination and grading are carried out, and weather environment information of each grade is obtained;
s340: and constructing an environment data set based on the weather environment information of each level.
Specifically, the application information of the first mast further includes application region information and application season information. According to the application region information and the application season information, the environmental conditions most suitable for the first mast test can be designed, and the weather parameter threshold value is obtained, wherein the weather parameter threshold value comprises threshold value intervals of temperature, humidity, wind power level, rainwater, atmospheric pollution degree and the like. Exemplary: if the first mast is an export product, the environmental data construction is required according to meteorological parameters of the export land. And obtaining a large amount of weather data according to the weather parameter threshold, and combining the weather data based on the actual weather condition of the application season information of the application region so as to simulate a real environment. And grading according to the severe conditions of the environment, wherein the higher the grade is, the worse the environment is, the weather environment information of each grade is obtained, and the environment data set is constructed by integrating all weather environment information of each grade. By decomposing the application information, the region information and the season information are obtained, and the environment data set can be designed truly and efficiently, so that the design of the virtual space is closer to the use environment of the first mast.
Further, the embodiment of the application further comprises:
s810: obtaining a performance evaluation result of the first mast;
s820: transmitting the performance evaluation result to a first visual interface to obtain a first verification instruction;
s830: according to the first verification instruction, verifying the performance evaluation result;
s840: if the performance evaluation result meets a preset performance evaluation standard, a first verification result is obtained;
s850: and if the performance evaluation result does not meet the preset performance evaluation standard, obtaining a second verification result.
Specifically, after performance evaluation, performance evaluation results are visually presented and verified, and the performance evaluation results are transmitted to equipment such as a virtual reality helmet or VR glasses worn by a technician in a data transmission mode to generate the first visual interface. In order to verify the performance evaluation result, a first verification instruction is generated. The technician presets a preset performance evaluation standard for the data such as the manufacturing, the application and the like of the first mast in advance, and verifies the actual performance evaluation result. And if the performance evaluation result meets the preset performance evaluation standard, obtaining a first verification result, wherein the first mast performance meets the preset standard and can be delivered for use. If the performance evaluation result does not meet the preset performance evaluation standard, a second verification result is obtained, and the performance of the first mast does not meet the preset standard, so that the first mast cannot be delivered to a factory for use, and technicians and engineers are required to deeply debug the performance evaluation result. Through visual verification of the performance evaluation result, the interactivity of the performance evaluation can be improved, and meanwhile, evaluation data can be repeatedly consulted and checked by technicians, so that the performance verification and performance evaluation efficiency of the technicians can be improved.
Further, step S300 of the embodiment of the present application further includes:
s350: acquiring a random emergency set based on the application information of the first mast;
s360: generating emergency test list information according to the random emergency set,
s370: performing an emergency virtual test on the first mast based on the emergency test list information;
s380: and carrying out mechanical analysis on the virtual test result of the emergency, and obtaining a third analysis result set.
Specifically, according to the application information of the first mast, historical use information of the first mast is obtained, and a random emergency set is obtained from the historical use information. For example: the emergency braking of the ship where the first mast is located is caused by the influence of other ships, and the ship is out of control and unbalanced due to sudden bad weather. The emergency test list information is designed according to the emergency set, and the emergency test list information comprises, but is not limited to, weather data of an emergency, task events and the like. As an emergency, the mechanical properties of the first mast are severely affected, for example: during emergency braking, the stress condition of the mast changes suddenly. Therefore, the mechanical analysis is carried out on the virtual test result of the emergency, and a finite element analysis method is preferably adopted to obtain a third analysis result set. By carrying out virtual test and mechanical analysis on the random emergency, the random emergency in the use process of the first mast can be simulated, so that various performances in the application process of the first mast are ensured to the greatest extent, the mast quality and market competitiveness are improved, and the safety of ships and crews is ensured.
In summary, the method and the system for evaluating the performance of the marine mast based on virtual reality provided by the embodiment of the application have the following technical effects:
1. the data acquisition is carried out on the first mast, so that a three-dimensional structure scanning result is obtained; performing point cloud data processing and three-dimensional solid modeling to obtain a first mast solid model; constructing an environment data set and a task data set; building a first virtual test platform according to the environment data set and the task data set, and implanting the first mast entity model into the first virtual test platform to further obtain environment test list information and task test list information; virtual testing is carried out on the first mast based on the test list information and the first virtual test platform; the technical scheme of performing mechanical analysis and hazard analysis on the test results to obtain a first analysis result set and a second analysis result set and performing performance evaluation on the first mast is provided.
2. Because the application information of the first mast is decomposed to obtain the region information and the season information, the environment data set can be designed truly and efficiently, and the design of the virtual space is more close to the technical effect of the use environment of the first mast.
3. Because the virtual test and the mechanical analysis are carried out on the random emergency, the random emergency in the use process of the first mast can be simulated, so that various performances in the application process of the first mast are ensured to the greatest extent, the mast quality and the market competitiveness are improved, and the technical effect of safety of ships and crews is ensured.
Example two
Based on the same inventive concept as the method for evaluating the performance of the marine mast based on the virtual reality in the foregoing embodiment, as shown in fig. 4, an embodiment of the present application provides a system for evaluating the performance of the marine mast based on the virtual reality, where the system includes:
the first obtaining unit 11 is configured to perform data acquisition on a first mast based on a three-dimensional laser scanning technology, and obtain a three-dimensional structure scanning result of the first mast;
the second obtaining unit 12 is configured to perform point cloud data processing and three-dimensional solid modeling on the three-dimensional structure scanning result, so as to obtain a first mast solid model;
A first construction unit 13, wherein the first construction unit 13 is configured to construct an environment data set and a task data set based on the application information of the first mast;
the first execution unit 14 is configured to build a first virtual test platform according to the environment data set and the task data set, and implant the first mast solid model into the first virtual test platform;
a third obtaining unit 15, where the third obtaining unit 15 is configured to obtain environment test list information and task test list information based on the environment data set and the task data set;
the second execution unit 16 is configured to perform a virtual test on the first mast in the first virtual test platform based on the environment test list information and the task test list information;
a fourth obtaining unit 17, where the fourth obtaining unit 17 is configured to perform mechanical analysis and hazard analysis on the virtual test result of the first mast, to obtain a first analysis result set and a second analysis result set;
and a third execution unit 18, where the third execution unit 18 is configured to perform performance evaluation on the first mast based on the first analysis result set and the second analysis result set.
Further, the system includes:
a fifth obtaining unit, configured to obtain a point cloud data set of the three-dimensional structure scanning result;
a sixth obtaining unit for obtaining curvature information and reduced proportion threshold information of the first mast;
and the fourth execution unit is used for carrying out point cloud data reduction on the point cloud data set according to the curvature negative correlation relationship based on the curvature information of the first mast and the reduction proportion threshold value information.
Further, the system includes:
a seventh obtaining unit for obtaining application region information and application season information based on the application information of the first mast;
an eighth obtaining unit configured to obtain a weather parameter threshold based on the application region information and the application season information;
a ninth obtaining unit, configured to perform weather data combination and classification according to the weather parameter threshold value, to obtain weather environment information of each level;
and the second construction unit is used for constructing an environment data set based on the weather environment information of each level.
Further, the system includes:
a tenth obtaining unit, configured to perform grid division based on the first mast solid model, and obtain a finite element model of the first mast after setting a working condition;
an eleventh obtaining unit, configured to perform statics analysis on the finite element model based on a virtual test result of the first mast, to obtain a displacement analysis result;
a twelfth obtaining unit, configured to perform vibration modal analysis on the finite element model, to obtain a displacement deformation analysis result;
a thirteenth obtaining unit for obtaining the first analysis result set based on the displacement analysis result and the displacement deformation analysis result.
Further, the system includes:
a fourteenth obtaining unit for obtaining fault information and connection relation of each part of the first mast;
the third construction unit is used for constructing a first logical relation database based on the fault information of each part, the connection relation and the integral fault information of the first mast;
A fifteenth obtaining unit, configured to divide importance of each part of the first mast, to obtain a part importance analysis result;
a sixteenth obtaining unit, configured to perform risk assessment on fault information of each part, to obtain a risk assessment result;
the fourth construction unit is used for constructing a reliability analysis model based on the first logic relation database, the part importance analysis result and the risk assessment result;
a seventeenth obtaining unit, configured to perform hazard analysis on the virtual test result of the first mast according to the reliability analysis model, to obtain the second analysis result set.
Further, the system includes:
an eighteenth obtaining unit configured to obtain a performance evaluation result of the first mast;
a nineteenth obtaining unit, configured to transmit the performance evaluation result to a first visual interface, to obtain a first verification instruction;
the fifth execution unit is used for checking the performance evaluation result according to the first checking instruction;
A twentieth obtaining unit configured to obtain a first verification result if the performance evaluation result meets a preset performance evaluation criterion;
a twenty-first obtaining unit configured to obtain a second verification result if the performance evaluation result does not satisfy a preset performance evaluation criterion.
Further, the system includes:
a twenty-second obtaining unit, configured to obtain a random emergency set based on application information of the first mast;
a first generation unit for generating emergency test list information according to the random emergency set,
the sixth execution unit is used for carrying out emergency virtual test on the first mast based on the emergency test list information;
the twenty-third obtaining unit is used for carrying out mechanical analysis on the virtual test result of the emergency event to obtain a third analysis result set.
Exemplary electronic device
An electronic device of an embodiment of the present application is described below with reference to fig. 5.
Based on the same inventive concept as the method for evaluating the performance of the marine mast based on the virtual reality in the foregoing embodiment, the embodiment of the present application further provides a system for evaluating the performance of the marine mast based on the virtual reality, including: a processor coupled to a memory for storing a program that, when executed by the processor, causes the system to perform the method of any of the first aspects.
The electronic device 300 includes: a processor 302, a communication interface 303, a memory 301. Optionally, the electronic device 300 may also include a bus architecture 304. Wherein the communication interface 303, the processor 302 and the memory 301 may be interconnected by a bus architecture 304; the bus architecture 304 may be a peripheral component interconnect (peripheral component interconnect, PCI) bus, or an extended industry standard architecture (extended industry Standard architecture, EISA) bus, among others. The bus architecture 304 may be divided into address buses, data buses, control buses, and the like. For ease of illustration, only one thick line is shown in fig. 5, but not only one bus or one type of bus.
Processor 302 may be a CPU, microprocessor, ASIC, or one or more integrated circuits for controlling the execution of the programs of the present application.
The communication interface 303 uses any transceiver-like system for communicating with other devices or communication networks, such as ethernet, radio access network (radio access network, RAN), wireless local area network (wireless local area networks, WLAN), wired access network, etc.
The memory 301 may be, but is not limited to, ROM or other type of static storage device that may store static information and instructions, RAM or other type of dynamic storage device that may store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a CD-ROM or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory may be self-contained and coupled to the processor through bus architecture 304. The memory may also be integrated with the processor.
The memory 301 is used for storing computer-executable instructions for executing the inventive arrangements, and is controlled by the processor 302 for execution. The processor 302 is configured to execute computer-executable instructions stored in the memory 301, thereby implementing the method for evaluating performance of a marine mast based on virtual reality according to the above embodiment of the present application.
Alternatively, the computer-executable instructions in the embodiments of the present application may be referred to as application program codes, which are not particularly limited in the embodiments of the present application.
The embodiment of the application provides a marine mast performance evaluation method based on virtual reality, which comprises the following steps: data acquisition is carried out on the first mast, and a three-dimensional structure scanning result is obtained; performing point cloud data processing and three-dimensional solid modeling to obtain a first mast solid model; constructing an environment data set and a task data set; building a first virtual test platform according to the environment data set and the task data set, and implanting the first mast entity model into the first virtual test platform to further obtain environment test list information and task test list information; virtual testing is carried out on the first mast based on the test list information and the first virtual test platform; and carrying out mechanical analysis and hazard analysis on the test result to obtain a first analysis result set and a second analysis result set, and carrying out performance evaluation on the first mast.
Those of ordinary skill in the art will appreciate that: the first, second, etc. numbers referred to in the present application are merely for convenience of description and are not intended to limit the scope of the embodiments of the present application, nor represent the sequence. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one" means one or more. At least two means two or more. "at least one," "any one," or the like, refers to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one of a, b, or c (species ) may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable system. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers, data centers, etc. that can be integrated with the available medium. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
The various illustrative logical blocks and circuits described in connection with the embodiments of the present application may be implemented or performed with a general purpose processor, a digital signal processor, an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic system, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the general purpose processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing systems, e.g., a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software unit executed by a processor, or in a combination of the two. The software elements may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. In an example, a storage medium may be coupled to the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC, which may reside in a terminal. In the alternative, the processor and the storage medium may reside in different components in a terminal. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Although the application has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary illustrations of the present application defined by the present application and are deemed to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the scope of the application. Thus, the present application is intended to include such modifications and alterations insofar as they come within the scope of the application or the equivalents thereof.
Claims (5)
1. The marine mast performance evaluation method based on virtual reality is characterized by comprising the following steps of:
based on a three-dimensional laser scanning technology, acquiring data of a first mast to obtain a three-dimensional structure scanning result of the first mast;
performing point cloud data processing and three-dimensional solid modeling on the three-dimensional structure scanning result to obtain a first mast solid model;
constructing an environment data set and a task data set based on the application information of the first mast;
Building a first virtual test platform according to the environment data set and the task data set, and implanting the first mast entity model into the first virtual test platform;
acquiring environment test list information and task test list information based on the environment data set and the task data set;
performing virtual testing on the first mast in the first virtual testing platform based on the environment testing list information and the task testing list information;
performing mechanical analysis and hazard analysis on the virtual test result of the first mast to obtain a first analysis result set and a second analysis result set;
performing performance evaluation on the first mast based on the first analysis result set and the second analysis result set;
performing grid division based on the first mast solid model, and obtaining a finite element model of the first mast after setting working conditions;
based on the virtual test result of the first mast, carrying out statics analysis on the finite element model to obtain a displacement analysis result;
performing vibration mode analysis on the finite element model to obtain a displacement deformation analysis result;
Based on the displacement analysis result and the displacement deformation analysis result, obtaining the first analysis result set;
obtaining fault information and connection relation of each part of the first mast;
constructing a first logical relationship database based on the fault information of each part, the connection relationship and the overall fault information of the first mast;
dividing importance of each part of the first mast to obtain a part importance analysis result;
performing risk assessment on the fault information of each part to obtain a risk assessment result;
constructing a reliability analysis model based on the first logic relation database, the part importance analysis result and the risk assessment result;
performing hazard analysis on the virtual test result of the first mast according to the reliability analysis model to obtain the second analysis result set;
obtaining a performance evaluation result of the first mast;
transmitting the performance evaluation result to a first visual interface to obtain a first verification instruction;
according to the first verification instruction, verifying the performance evaluation result;
if the performance evaluation result meets a preset performance evaluation standard, a first verification result is obtained;
If the performance evaluation result does not meet the preset performance evaluation standard, a second verification result is obtained;
acquiring a random emergency set based on the application information of the first mast;
generating emergency test list information according to the random emergency set,
performing an emergency virtual test on the first mast based on the emergency test list information;
and carrying out mechanical analysis on the virtual test result of the emergency, and obtaining a third analysis result set.
2. The method of claim 1, wherein the method comprises:
obtaining a point cloud data set of the three-dimensional structure scanning result;
obtaining curvature information and reduced proportion threshold information of the first mast;
and based on the curvature information of the first mast and the reduction ratio threshold information, performing point cloud data reduction on the point cloud data set according to the curvature negative correlation.
3. The method of claim 1, wherein the method comprises:
acquiring application region information and application season information based on the application information of the first mast;
acquiring a weather parameter threshold based on the application region information and the application season information;
According to the weather parameter threshold, weather data combination and grading are carried out, and weather environment information of each grade is obtained;
and constructing an environment data set based on the weather environment information of each level.
4. A system for virtual reality-based performance evaluation of a marine mast, the system comprising:
the first acquisition unit is used for acquiring data of the first mast based on a three-dimensional laser scanning technology and acquiring a three-dimensional structure scanning result of the first mast;
the second obtaining unit is used for carrying out point cloud data processing and three-dimensional entity modeling on the three-dimensional structure scanning result to obtain a first mast entity model;
a first construction unit for constructing an environment data set and a task data set based on the application information of the first mast;
the first execution unit is used for building a first virtual test platform according to the environment data set and the task data set, and implanting the first mast entity model into the first virtual test platform;
the third obtaining unit is used for obtaining environment test list information and task test list information based on the environment data set and the task data set;
The second execution unit is used for carrying out virtual test on the first mast in the first virtual test platform based on the environment test list information and the task test list information;
the fourth obtaining unit is used for carrying out mechanical analysis and hazard analysis on the virtual test result of the first mast to obtain a first analysis result set and a second analysis result set;
the third execution unit is used for evaluating the performance of the first mast based on the first analysis result set and the second analysis result set;
performing grid division based on the first mast solid model, and obtaining a finite element model of the first mast after setting working conditions;
based on the virtual test result of the first mast, carrying out statics analysis on the finite element model to obtain a displacement analysis result;
performing vibration mode analysis on the finite element model to obtain a displacement deformation analysis result;
based on the displacement analysis result and the displacement deformation analysis result, obtaining the first analysis result set;
obtaining fault information and connection relation of each part of the first mast;
Constructing a first logical relationship database based on the fault information of each part, the connection relationship and the overall fault information of the first mast;
dividing importance of each part of the first mast to obtain a part importance analysis result;
performing risk assessment on the fault information of each part to obtain a risk assessment result;
constructing a reliability analysis model based on the first logic relation database, the part importance analysis result and the risk assessment result;
performing hazard analysis on the virtual test result of the first mast according to the reliability analysis model to obtain the second analysis result set;
obtaining a performance evaluation result of the first mast;
transmitting the performance evaluation result to a first visual interface to obtain a first verification instruction;
according to the first verification instruction, verifying the performance evaluation result;
if the performance evaluation result meets a preset performance evaluation standard, a first verification result is obtained;
if the performance evaluation result does not meet the preset performance evaluation standard, a second verification result is obtained;
acquiring a random emergency set based on the application information of the first mast;
Generating emergency test list information according to the random emergency set,
performing an emergency virtual test on the first mast based on the emergency test list information;
and carrying out mechanical analysis on the virtual test result of the emergency, and obtaining a third analysis result set.
5. A system for virtual reality-based performance evaluation of a marine mast, comprising: a processor coupled to a memory for storing a program which, when executed by the processor, causes the system to perform the method of any one of claims 1 to 3.
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