跨介质冲压发动机理论性能与工作参数分析

针对空水一体跨介质导弹应用需求，提出了一种采用同一金属基固体推进剂，能够实现在空中和水中工作的跨介质冲压发动机方案。分析了空中和水中典型工况下，金属基固体推进剂配方、空/水燃比、金属种类等对跨介质冲压发动机理论性能的影响。针对给定的跨介质导弹飞行弹道和金属基固体推进剂配方，对发动机设计参数进行了选取，并完成了空中和水中工作条件下发动机工作参数计算，从理论上验证了该跨介质冲压发动机方案的可行性。

Theoretical performance and working parameters analysis of trans-medium ramjet

A scheme of trans-medium ramjet engine which can work in both air and water with the same metal solid propellant is proposed to satisfy the application requirements of air-water integrated trans-medium missiles. We study the influence of the solid propellant formulation, air/water fuel ratio and metal type on the theoretical performance of trans-medium ramjets, followed by the selection of the design parameters of the engine with a given flight trajectory of the trans-medium missile and the metal based solid propellant. The operating parameters of the engine working in both air and water are obtained, theoretically verifying the feasibility of the scheme of trans-medium ramjets.