国外高速导弹的头罩防护技术

文中对国外专利上出现的高速导弹的头罩设计及防护技术进行了综述。通过查阅大量国外有关高速导弹头罩防护技术专利，对头罩防护及设计方法进行了分类和梳理，分析了各种技术的优缺点及适用范围。随着导弹飞行速度的提高，头罩表面温度及热应力也不断升高。在航空界一般把马赫数 2.5作为热障的界线，低于这一值，气动加热不严重，可用常规的方法和材料设计、制造飞行器；高于该值，则必须采取克服气动加热问题的措施，如采用抛罩技术、加装激波锥、改变头罩的气动外形、对窗口加装冷却系统等措施。

Dome protecting technologies for overseas high-velocity guided missiles

A summary of dome protecting technologies design of high-velocity guided missiles was made in this paper. Based on a lot of US patents and other references, the classification of dome protecting design methods and analysis of the strengths and weaknesses and the scope of application of the various technologies was made. The temperature and thermal stress of the dome surface increased as the rise of the missile flight. Mach 2.5 is usually considered to be the thermal barrier boundary in aviation world. Conventional methods and materials can be used to design and manufacture aircraft when temperature is below this boundary, otherwise some measures must be taken to overcome the problem of aerodynamic heating, such as removal of a dome cover, installation of the shock wave cone, dome outline design and dome cooling technology.