The munitions and control system is a complex system, and design and test testing face many technical difficulties. New key technologies and test projects are subject to certain restrictions through actual ground or flight tests. The use of virtual simulation integrated testing technology to achieve the synthesis, demonstration, design, manufacture, testing, testing and verification of the munitions, that is, the test testing and data processing analysis in the virtual integrated environment, allowing the designer to use the virtual prototype or semi The physical model is installed on it for testing. With the help of interactive technology and test analysis technology, the designer can perform simulation testing and evaluation experience on the operational performance of the ammunition throughout the life cycle, so that the obtained test test effect is close to or equivalent to The effect achieved in the real environment. Virtual simulation integrated testing can not only be an important supplement to real ground tests and flight tests, but also can replace some traditional real tests to a certain extent, throughout weapon demand analysis, design, development, production, deployment, support, improvement, update, etc. The full life cycle supports the life cycle process and simulation test of the guided missile system, which has the characteristics of high efficiency, optimization, low cost, and low risk. Regardless of the venue, time and number of times, the test process can be played back, reproduced and repeated.
1. Virtual simulation integrated testing function The virtual simulation integrated testing of manufactured missiles should meet the needs of users for comprehensive testing and objective evaluation of products in various stages of demonstration, design, production, testing, diagnosis, maintenance, etc., provide modeling simulation, test process editing, All-digital simulation test, semi-physical closed-loop simulation test, physical open-loop test, intelligent diagnosis and other practical functions related to the test. The integrated test environment for the virtual simulation of manufacturing missiles should have feedback and communication for design, manufacturing, and testing under a unified and interactive user interface environment. CAD technology, manufacturing CAE technology, design database technology and test database, testing Combining verification and testing techniques, optimizing the model, quickly modifying the model, and combining it with data processing, analysis, and test verification techniques to form a set of virtual simulation test application software to achieve simulation model loading, control algorithm height, Parameter optimization, dynamic test diagnosis height, test operation management, etc. Adopt the virtual instrument test development environment VITE (Virtual Instrument Test Environment) developed by Beijing Aerospace Measurement and Control Technology Development Company to achieve the above functions.
The software provides a general and complete system solution for the testing process, which can complete the analysis and processing of the test requirements of the measured object, the resource description of the test system, the development of the test process, the analysis of the system's extremely diverse faults, etc. jobs. Using a virtual instrument test development environment, testers do not need to program, just fill in the test process elements on the fully graphical development interface according to the test needs of the tested object, and the system will automatically generate an execution script for the test task according to the elements. The software has won the second prize of National Defense Science and Technology Progress Award and five national defense patents. It has been widely used in military-civilian equipment and various types of machine, optical, and electrical products to meet various system-level, subsystem-level, module-level, etc. Various stages of testing are required for integration, design, manufacturing, use and maintenance.
Second, the key technology of virtual simulation integrated testing The virtual simulation integrated testing technology mainly includes three elements: environment, model and parameters. The environment mainly studies the effects of nature, mechanics, vibration, electromagnetics, etc. where the guided missiles are in the virtual simulation test. The input of the external environment; the model mainly studies the inherent physical characteristics and operating mechanism of the guided missiles, including digital, equivalent, semi-physical, and special models; the parameters mainly study the collection, analysis, evaluation, and visualization of test parameters. The key technologies of virtual simulation integrated test technology include:
1. The platform technology of the virtual simulation integrated test environment is used to build a unified distributed virtual simulation test integrated environment. On the powerful computing platform, mainstream mainstream ammunition simulation, computer-aided design, intelligent diagnosis, virtual instrument software and virtual reality The core operating components are integrated to form a platform that covers the full life cycle testing of the guided missiles.
2. Virtual Test Prototyping Technology (VTP), VTP is a multi-domain digital model cluster that contains all the key features of munitions. The virtual test prototyping technology is a combination of system modeling methods, system integration analysis and verification methods. The virtual simulation test provides digital model generation, performance, evaluation specifications and data sources, and provides a technical basis for model mapping and data exchange between test physical prototypes.
3. Based on the virtual affordable test test visualization technology, based on advanced hardware technology and software tools, design reasonable hardware, software and interactive means, so that users can interactively observe and manipulate the generated virtual world, realistic simulation of missiles Pilot test process.
4. Virtual test testing and evaluation technology. In a virtual integrated environment, the test data is measured, processed, analyzed, and evaluated through virtual simulation tests to determine the rationality of the test results of the guided missiles, and to obtain system performance evaluation and optimization schemes. Provide technical support for the test and verification of the munitions.
Third, the specific application of virtual simulation integrated testing in the manufacture of munitions The virtual simulation integrated test environment is used for the design and testing of munitions. Users can use the developed virtual test and test system to convert the design scheme into a virtual test prototype, and set the virtual prototype Perform various performance test tests in a virtual environment, combining semi-physical closed-loop simulation testing and physical open-loop testing, comprehensive evaluation and optimization of the design process, the entire simulation test process and result analysis through human-computer interaction through virtual reality, users can change the test test Conditions and content, revision of design parameters, etc. The specific application process and main contents of the virtual simulation integration test of typical guided missiles are: the construction of tool platform, the establishment of virtual proving ground, the design of virtual test human-computer interaction system and its virtual test system, design parameters, input signals and virtual prototype, virtual Interface design of the test site, development of virtual prototypes for guided munitions and targets, virtual simulation modeling and model simplification of guidance control systems, the use of virtual prototypes in virtual test sites, hierarchical hierarchical control of the test process, and virtual test demonstration of flight Verification, semi / physical test testing and full digital verification, acquisition, processing, analysis and evaluation of test results, consistency test and evaluation of virtual test and real test, etc.
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