Gas turbine assembly training method based on virtual reality

Abstract

The invention aims to provide a gas turbine assembly training method based on virtual reality, and belongs to the field of gas turbines. Comprising the following steps: establishing a system typical part fault analysis database; establishing a three-dimensional model database of the gas turbine system; building a system virtual environment for the prefabricated three-dimensional simulation model; developing and generating a process verification function module, and performing accurate sequence control on the virtual maintenance and assembly process of the gas turbine; generating a three-dimensional model preform with a man-machine interaction function; outputting a system training model; designing and developing a training system; a man-machine interaction interface is designed and developed, and a gas turbine assembly training system based on virtual reality is obtained; and the system guides the trainees to complete assembly training and outputs a training result. For some narrow spaces, the real assembling environment is simulated, and the system calculates the operation space required by personnel, the spatial position of the system and the accuracy of the assembling position to automatically decide whether assembling can be completed or not.

Description

Technical Field

[0001] The invention relates to a gas turbine assembly method, in particular to a gas turbine assembly training method. Background Art

[0002] As an important power equipment, gas turbines have high system integration and automation, and high technical requirements for operation, maintenance, inspection and repair. The training costs for disassembly, inspection, maintenance and repair are high, the assembly efficiency is low, and there are many unsafe factors in actual operation. By using virtual reality technology to simulate the real gas turbine assembly scene in the real environment, trainees can assemble and repair gas turbines in a virtual scene. It has a highly immersive experience and a convenient virtual reality interactive operation environment, providing full-factor, full-process assembly guidance and training solutions. After searching the existing technical literature, it was found that the patent "A Virtual Reality Industrial Simulation Training System" applied by Chen Xuewen et al. integrates virtual reality technology and industrial simulation training into a general method suitable for large-space operations, and has achieved good results. However, this method cannot be applied to the professional field of gas turbines, including handling gas turbine assembly and maintenance training problems in a limited space, and there is also a lack of gas turbine assembly process control methods. Summary of the invention

[0003] The purpose of the present invention is to provide a gas turbine assembly training method based on virtual reality, which can enable trainees to complete immersive assembly training of key components of a gas turbine in a virtual environment and guide and train the trainees in the assembly process.

[0004] The object of the present invention is achieved in that:

[0005] The present invention provides a gas turbine assembly training method based on virtual reality, which is characterized by comprising the following steps:

[0006] (1) Analyze the failure modes of typical gas turbine system components and establish a typical component failure analysis database;

[0007] (2) using 3D Max technology to classify and model typical parts, tools and workshops of the gas turbine system in the assembly fault analysis database of step (1), prefabricate and render three-dimensional models based on geometric size parameters and material performance parameters of the gas turbine, tools and workshops, and establish a three-dimensional model database of the gas turbine system;

[0008] (3) Using a virtual reality head mounted display device to build a system hardware environment, using the three-dimensional simulation model prefabricated in step (2) to build a system virtual environment, and further lightweighting the three-dimensional simulation model;

[0009] (4) compiling the control logic of the gas turbine maintenance and assembly process based on the fault analysis database in step (1), importing the compiled gas turbine maintenance and assembly process into the system environment built in step (3), developing and generating a process verification function module, and performing precise sequential control of the virtual maintenance and assembly process of the gas turbine;

[0010] (5) Based on the lightweight three-dimensional model obtained in step (3), a three-dimensional model preform of typical parts of a gas turbine system is manufactured to generate a three-dimensional model preform with a human-computer interaction function;

[0011] (6) developing a training model based on step (4), embedding the fault analysis database in step (1) into the training function module in the form of video animation, and outputting a system training model;

[0012] (7) integrating the three-dimensional model preform generated in step (5) with the system training model generated in step (6) to design and develop a training system;

[0013] (8) Design and develop a human-computer interaction interface and integrate it with the training system developed in step (7) to obtain a gas turbine assembly training system based on virtual reality.

[0014] (9) Trainees use the system integrated in step (8) to perform functional testing. The system guides trainees to complete assembly training and outputs training results.

[0015] The present invention may also include:

[0016] 1. Step (1) Establishing a typical system component failure analysis database includes:

[0017] Write maintenance and assembly plans for gas turbines and build a framework for system fault analysis database;

[0018] Collect typical component failure data, clean, organize and classify the collected data;

[0019] Establish a typical parts failure data maintenance method module;

[0020] Establish a general description language standard for typical parts maintenance and assembly;

[0021] The typical parts failure data maintenance method module and the maintenance assembly general description language are integrated into the system failure analysis database.

[0022] 2. Step (2) Establishing a three-dimensional model database of a gas turbine system includes the following steps:

[0023] Count, sort and classify the three-dimensional models that need to be modeled;

[0024] Use 3d Max technology to create three-dimensional models and render the materials of the three-dimensional models;

[0025] Perform parametric curve and surface triangulation on the 3D model, and use triangle network to approximate the accurate 3D model;

[0026] Design the framework of the gas turbine system three-dimensional model database and establish the gas turbine system three-dimensional model database.

[0027] 3. Step (3) The process of further lightweighting the three-dimensional simulation model is as follows:

[0028] Integrate the 3D model into the system virtual environment;

[0029] Simplify the internal structure of the 3D model, hide or delete unnecessary structural models;

[0030] Reduce the lighting and material rendering effects of components in the internal structure of the 3D model to generate a lightweight 3D model.

[0031] 4. Step (4) The writing process of the control logic of the gas turbine maintenance and assembly process is as follows:

[0032] Compile gas turbine maintenance and assembly procedures based on the fault analysis database;

[0033] Sort out the logical relationship between all functional modules and design the gas turbine maintenance and assembly process flow;

[0034] Draw a flow chart to standardize the gas turbine maintenance and assembly process;

[0035] The control logic of gas turbine maintenance and assembly process is written using the standard maintenance and assembly general description language.

[0036] 5. Step (6) Developing the training model includes the following steps:

[0037] Write training function module plan and design the technical framework of training function module;

[0038] Design and develop video animation teaching function module based on gas turbine system fault analysis database;

[0039] Write training process elements and develop training function modules;

[0040] The video animation teaching function module is integrated with the training function module to generate a training model.

[0041] The advantages of the present invention are:

[0042] 1. The present invention can be used by trainees in gas turbine maintenance and assembly training scenarios;

[0043] 2. Trainees can learn and master gas turbine maintenance and assembly operations through virtual reality training;

[0044] 3. For some smaller spaces, the system simulates the real assembly environment and calculates the operating space required by the personnel, their own spatial position and the accuracy of the assembly position to automatically decide whether the assembly can be completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the system framework of the present invention;

[0046] Figure 2 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0047] The present invention is described in more detail below with reference to the accompanying drawings:

[0048] Combination Figure 1-2 The present invention provides a gas turbine assembly training method based on virtual reality, comprising the following steps:

[0049] Step 1: Analyze the failure modes of typical components of the gas turbine system and establish a typical component failure analysis database. (1) Write a maintenance and assembly plan for the gas turbine and build a framework for the system failure analysis database; (2) Collect typical component failure data, clean, organize and classify the collected data; (3) Establish a typical component failure data maintenance method module; (4) Establish a typical component maintenance and assembly general description language standard; (5) Integrate the typical component failure data maintenance method module and the maintenance and assembly general description language into the system failure analysis database.

[0050] Step 2: Use 3d Max technology to classify and model typical parts, tooling and workshops of the gas turbine system in the fault analysis database of step 1. Prefabricate and render three-dimensional models based on the precise geometric size parameters and material performance parameters of the gas turbine, tooling and workshop, and establish a system three-dimensional model database. (1) Count, sort and classify the three-dimensional models that need to be modeled; (2) Use 3d Max technology to make three-dimensional models and render the materials of the three-dimensional models; (3) Perform parametric curve and surface triangulation on a large number of three-dimensional models, and use triangle networks to approximate the precise three-dimensional models; (4) Design the functional structure of the system three-dimensional model database and establish the system three-dimensional model database.

[0051] Step 3: Use a virtual reality head mounted display device to build the system hardware environment, build the system virtual environment with the 3D simulation model prefabricated in step 2, and further lightweight the 3D simulation model. (1) Integrate the 3D model into the system virtual environment; (2) Simplify the internal structure of the 3D model, hide or delete unnecessary structural models; (3) Reduce the rendering effects of light, shadow, material, etc. of the components in the internal structure of the 3D model to generate a lightweight 3D model.

[0052] Step 4: Based on the fault analysis database in step 1, compile the control logic of the gas turbine maintenance and assembly process, import the compiled gas turbine maintenance and assembly process into the system environment built in step 3, develop and generate the process verification function module, and perform precise process control on the virtual maintenance and assembly process of the gas turbine. (1) Compile the maintenance and assembly steps of the gas turbine according to the fault analysis database; (2) Sort out the logical relationship between all functional modules and design the gas turbine maintenance and assembly process flow; (3) Draw a flow chart to standardize the description of the gas turbine maintenance and assembly process; (4) Use the standard maintenance and assembly general description language to compile the control logic of the gas turbine maintenance and assembly process.

[0053] Step 5: Based on the lightweight 3D model obtained in step 3, a 3D model preform of typical gas turbine system components is produced to generate a 3D model preform with human-computer interaction function; (1) The 3D models with human-computer interaction function are sorted out; (2) The 3D models are classified according to different functions, and different functional components are mounted according to functional requirements; (3) The 3D models with mounted functional components are generated into 3D model preforms with different functions.

[0054] Step 6: Develop a training model based on step 4, embed the fault analysis database in step 1 into the training function module in the form of video animation, output the system training model, and integrate it with the 3D model prefabricated body generated in step 5 into the system. (1) Write a training function module plan and design a technical framework for the training function module; (2) Based on the gas turbine system fault analysis database, design and develop a video animation teaching function module; (3) Write training process elements and develop a training function module; (4) Integrate the video animation teaching function module with the training function module to generate a system training model.

[0055] Step 7: Integrate it with the 3D model prefabricated body generated in step 5 and the system training model generated in step 6 to design and develop a training system.

[0056] Step 8: Design and develop a human-computer interaction interface and integrate it with the training system developed in step 7 to obtain a gas turbine assembly training system based on virtual reality. (1) Sort out the names of training scenario tasks and design a human-computer interaction interface; (2) Write a system manual and develop a system usage guidance function; (3) Design and develop a human-computer interaction function.

[0057] Step 9: Trainees use the system integrated in step 8 to perform functional testing. The system guides trainees to complete assembly training and automatically outputs training results.

Claims

1. A gas turbine assembly training method based on virtual reality, characterized by: The steps include: (1) Analyze the failure modes of typical gas turbine system components and establish a typical component failure analysis database; (2) using 3D Max technology to classify and model typical parts, tools and workshops of the gas turbine system in the assembly fault analysis database of step (1), prefabricate and render three-dimensional models based on geometric size parameters and material performance parameters of the gas turbine, tools and workshops, and establish a three-dimensional model database of the gas turbine system; (3) Using a virtual reality head mounted display device to build a system hardware environment, using the three-dimensional simulation model prefabricated in step (2) to build a system virtual environment, and further lightweighting the three-dimensional simulation model; (4) compiling the control logic of the gas turbine maintenance and assembly process based on the fault analysis database in step (1), importing the compiled gas turbine maintenance and assembly process into the system environment built in step (3), developing and generating a process verification function module, and performing precise sequential control of the virtual maintenance and assembly process of the gas turbine; (5) Based on the lightweight three-dimensional model obtained in step (3), a three-dimensional model preform of typical parts of a gas turbine system is manufactured to generate a three-dimensional model preform with a human-computer interaction function; (6) developing a training model based on step (4), embedding the fault analysis database in step (1) into the training function module in the form of video animation, and outputting a system training model; (7) integrating the three-dimensional model preform generated in step (5) with the system training model generated in step (6) to design and develop a training system; (8) Design and develop a human-computer interaction interface and integrate it with the training system developed in step (7) to obtain a gas turbine assembly training system based on virtual reality. (9) Trainees use the system integrated in step (8) to perform functional testing. The system guides trainees to complete assembly training and outputs training results.

2. The gas turbine assembly training method based on virtual reality according to claim 1 is characterized by: Step (1) establishing a typical system component failure analysis database includes: Write maintenance and assembly plans for gas turbines and build a framework for system fault analysis database; Collect typical component failure data, clean, organize and classify the collected data; Establish a typical parts failure data maintenance method module; Establish a general description language standard for typical parts maintenance and assembly; The typical parts failure data maintenance method module and the maintenance assembly general description language are integrated into the system failure analysis database.

3. The gas turbine assembly training method based on virtual reality according to claim 1 is characterized by: Step (2) of establishing a three-dimensional model database of a gas turbine system comprises the following steps: Count, sort and classify the three-dimensional models that need to be modeled; Use 3d Max technology to create three-dimensional models and render the materials of the three-dimensional models; Perform parametric curve and surface triangulation on the 3D model, and use triangle network to approximate the accurate 3D model; Design the framework of the gas turbine system three-dimensional model database and establish the gas turbine system three-dimensional model database.

4. The gas turbine assembly training method based on virtual reality according to claim 1 is characterized by: Step (3) is to further lighten the three-dimensional simulation model as follows: Integrate the 3D model into the system virtual environment; Simplify the internal structure of the 3D model, hide or delete unnecessary structural models; Reduce the lighting and material rendering effects of components in the internal structure of the 3D model to generate a lightweight 3D model.

5. The gas turbine assembly training method based on virtual reality according to claim 1 is characterized by: Step (4) The writing process of the control logic of the gas turbine maintenance and assembly process is as follows: Compile gas turbine maintenance and assembly procedures based on the fault analysis database; Sort out the logical relationship between all functional modules and design the gas turbine maintenance and assembly process flow; Draw a flow chart to standardize the gas turbine maintenance and assembly process; The control logic of gas turbine maintenance and assembly process is written using the standard maintenance and assembly general description language.

6. The gas turbine assembly training method based on virtual reality according to claim 1 is characterized by: Step (6) Developing a training model includes the following steps: Write training function module plan and design the technical framework of training function module; Design and develop video animation teaching function module based on gas turbine system fault analysis database; Write training process elements and develop training function modules; The video animation teaching function module is integrated with the training function module to generate a training model.

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