CAJ | 학술논문

为了实现氢氧发动机的动态燃烧稳定性试验评定,基于国内外液体火箭发动机动态稳定性评定的相关经验,并结合 CPIA655关于稳定性评定的准则,进行了氢氧发动机动态稳定性评定的方案探讨.分析表明,氢氧发动机有必要在全系统热试车状态下进行动态稳定性评定试验.所选定的扰动装置和传感器在喷注器面安装的方案可实现性最好,结构变动最小,可保持试验在原型燃烧室状态下进行,同时扰动效果较好,传感器敏感性较好.
위료실현경양발동궤적동태연소은정성시험평정,기우국내외액체화전발동궤동태은정성평정적상관경험,병결합 CPIA655관우은정성평정적준칙,진행료경양발동궤동태은정성평정적방안탐토.분석표명,경양발동궤유필요재전계통열시차상태하진행동태은정성평정시험.소선정적우동장치화전감기재분주기면안장적방안가실현성최호,결구변동최소,가보지시험재원형연소실상태하진행,동시우동효과교호,전감기민감성교호.
In order to carry out dynamic combustion stability rating of a LOX/LH2 rocket engine, the schemes of stability rating for the LOX/LH2 rocket engine are investigated based on the stability rating datum of some rocket engines and the basic criteria of CPIA655, including the evaluation standard, testing method, disturbance method, dynamic pressure testing and structure design. Compared to other schemes, the selected scheme that disturbance device and high frequency pressure sensors install on injector surface has better feasibility and less structural changes, which could ensure the rating test to be carried in a prototype engine, thereby leading to better disturbance efficiency and measure sensitivity.