The Research Of Near-Space Vehicle Operational Flight Environment Adaptability Evaluation Framework

Weapon system evaluation and the technology assessment is not only the effective way in the scheme optimization and the upgrade of the weapon performance, but also in the control of the develop risk and the develop time and expense. Toward the new kind of weapon system of the near-space long-distance glide aircraft, in the process of flying, it will be confronted with those complex environments of long-time flying, wide airspace, and great speed scopes, The task section plane get large difference between the new kind weapon system and the tradition kind, thus, it relate to more critical technology, so, we must aim to characteristic of this kind fly vehicle, carry out the research of assessment technology. There for, this paper pay attention to the research of verify assessment method of whole performance and the critical technology assessment method when the vehicle is flying under the environment of flight.First of all, according to weapons system operational flight adaptability environment's evaluation demand, summarizes the general techniques of system evaluation , including system analysis method, the creation of the index system and the evaluation model, and the study of the comprehensive method of index; According to the principle of system analysis, the paper brings forward a set of system analysis and critical technology identification method based on technology roadmap, decomposition the system analysis into combat requirement analysis, system tactical technical index requirement analysis, system composition analysis, system technology decomposition, and puts forward the critical technology for particle degree evaluation, through the particle degree evaluation, adjust the size of the critical technology's particle degree and modify the level of technology in the technology breakdown structure; And then create aircraft operational environment adaptability evaluation index, the environmental adaptability is divided into mechanics, heat, pneumatic, particle erosion environment, and then decompose each of the environmental indicators, the indicators of the bottom level of the index can be checked and calculated, each specific indicators on the bottom of the index are given to each major module to solve, the overall framework platform is to synthesize the indicators after the bottom indicators have been given out, and then give out a index synthetic example. In the process of checking the sample index, also is the process of collect the evidence material of the critical technologies, according to the characteristics of the critical technology, gathering the evidence material of the critical technology, searching for the technical difficulties; Finally, summarized the process and method of the technology readiness level assessment, apply the critical technology recognition method process to distinguish the near-space glide vehicles preliminarily.Through the research of this paper, complete the near-space hypersonic vehicle operational flight environment adaptable overall scheme and critical technology evaluation analysis, establish the evaluation index system and the top comprehensive evaluation software framework, combed the critical technology assessment method and technology approach , forming a complete set of tactical technical index, design scheme and engineering experiment, the comprehensive evaluation assessment framework of critical technology readiness assessment.