高超声速可调进气道的记忆合金变形原理及其气动调节规律研究

项目名称： 高超声速可调进气道的记忆合金变形原理及其气动调节规律研究

项目编号： No.91216112

项目类型： 重大研究计划

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 谭慧俊

作者单位： 南京航空航天大学

项目金额： 85万元

中文摘要： 记忆合金在高超声速可调进气道上有着良好的应用前景。在上一个国家自然基金项目的支持下，课题组在基于记忆合金的高超声速可调进气道气动原理方面取得了较大进展。以此为基础，本项目拟针对前期提出的各种气动调节措施，结合记忆合金片、记忆合金弹簧开展形状记忆合金的变形规律与控制方法研究，并据此发展既便于记忆合金技术实现，又符合进气道气动调节原理的高超声速进气道变结构方法，分析掌握变结构进气道的性能调节规律和记忆合金变形/流场结构耦合作用规律，最终通过典型部位变形试验、进气道模型吹风试验展示记忆合金变形方法的可实现性，检验高超声速可调进气道的流场结构和气动性能。通过高超声速进气道空气动力学和功能材料学间的学科交叉，本项目有望进一步将记忆合金驱动的高超声速可调进气道技术推向实用，从而以较小的变结构代价获得变几何进气道的性能。

中文关键词： 前体激波系控制；激波/边界层干扰控制；形状记忆合金；高超声速进气道；

英文摘要： Shape memory alloy is a promising material on the development of hypersonic variable inlet. Under the financial support of the preceding NSFC project, the current research team has achieved a remarkable progress on the aerodynamic principle of hypersonic variable inlet driven by shape memory alloy. Based on these results, the current project firstly plans to obtain the deformation law and the corresponding control method of shape memory alloy plate and shape memory alloy spring. Then, the variable structure scheme of hypersonic variable inlet based on shape memory alloy is proposed and the regulation law of hypersonic variable inlet performance is studied. Finally, typical morphing tests and hypersonic variable inlet wind tunnel test are arranged to check the feasibility of shape memory alloy driven inlet and demonstrate its high aerodynamic performance. By combination of hypersonic inlet aerodynamics and functional material, the current project is promising to obtain high inlet performance at a small cost of system weight and complexity, making the hypersonic variable inlets driven by shape memory alloy more realizable.

英文关键词： forebody shock control；control of shock/boundary layer interaction；shape memory alloy；hypersonic inlet；