摘要
在固冲发动机地面试验中,模拟来流误差对试验结果有很大影响,开展相关影响评估研究具有重要的理论意义和工程价值。基于一维气动理论,结合某试验固冲发动机,采用小偏差方法评估模拟来流误差对试验结果的影响,给出了发动机性能参数对模拟误差的敏感系数和小偏差方法的适用范围,提出了一套较完整的考虑模拟误差的固冲发动机性能计算方法和固冲发动机地面直连试验时总压总温调节控制精度计算方法。
In the ground test of solid ducted rocket（SDR）,influence of the simulated coming flow error on the test result is very significant,so the research of related influence evaluation has an important theory meaning and engineering value.Based on one-dimension aerodynamics theory and combined with some type of test solid ducted rocket,the influence of simulated coming flow error to ground test of the SDR was evaluated by means of the small deviation model to provide the sensitivity coefficients of motor performance parameters on simulation error and the applying range of small deviation model,and put forward a suit of fairly integrated performance calculating method of solid ducted rocket in consideration of coming flow regulating error and regulating precision of total pressure and total temperature during the direct-connection ground test of SDR.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2011年第1期57-60,共4页
Journal of Solid Rocket Technology
基金
装备预先研究项目(No.51328020106)
关键词
固体冲压发动机
试验技术
小偏差方法
敏感系数
solid ducted rocket
test technology
small deviation model
sensitivity coefficients
