新一代远程机动飞行器关键气动问题基础研究

项目名称： 新一代远程机动飞行器关键气动问题基础研究

项目编号： No.11272319

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 王发民

作者单位： 中国科学院力学研究所

项目金额： 95万元

中文摘要： 面对战略飞行器由再入弹道式飞行到大气层内高机动远程滑翔转变，存在以前在工程上没有遇到、理论上没有解决的高超声速空气动力学基础科学问题。针对HTV-2飞行试验中暴露出来的问题，以及我国在该类飞行器研制中遇到的问题，着重研究远程机动飞行器乘波布局、气动力精确测量和飞行稳定性等基础科学问题。根据工程约束构造生成乘波体的"虚拟体"，依据不同热载荷，进行不同区域前缘钝化；调整前缘线控制纵向压心位置，上下表面压力分布改善横向稳定性。研究高马赫数低雷诺数激波风洞来流模拟技术；通过半导体敏感元件提高灵敏度，压电晶体叠加提高轴向力精度，研制适用于高升阻比复杂布局的激波风洞测力天平和相应的实验技术。通过建立新的飞行力学模型，研究飞行器动态特性，重点分析俯仰力矩和滚转力矩等的耦合特性和提高偏航力矩的模拟精度。为远程机动飞行器飞行性能决策提供科学依据；为飞行器气动布局设计、气动力测量和飞行控制提供新概念新方法。

中文关键词： 高超声速；乘波体；静稳定性；动稳定性；气动操纵

英文摘要： Now the strategic flight vehicles are changing from ballistic reentry vehicles to long-distance maneuvering vehicles flying in the atmosphere, we are facing some basic scientific problems on hypersonic aerodynamics that have not met before and have not been solved theoretically. Based on the problems in HTV-2 test flight and our country met this years, our research will focus on waverider configuration of long-distance maneuvering vehicles, accurate aerodynamic measurement and flight stability. For waverider configuration of long-distance maneuvering vehicles, the fictitious-body of waverider will be generated according to engineering constraint conditions, and then the leading edge will be blunted at different region based on different heat load. The leading edge can be adjusted to control the pressure center, and we can change the pressure distribution of upper surface and lower surface to improve lateral stability. Furthermore, the force balance and related experimental technique for high Mach number and low Reynolds number shock tunnel will be developed , semiconductor sensitive elements will be used to increase sensitivity and the superposition of piezoelectric crystal can improve the accuracy of axial force. At last, a new aerodynamic model will be established for the study of dynamic characteristics of fl

英文关键词： hypersonic；waverider；static stability；dynamic stability；aerodynamic control