搜索 - 科创

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从燃烧后的燃料看可能出现了声振能否上一下燃料内孔和喉部的尺寸形成锥孔的主要原因可能是声震荡引起尾部侵蚀燃烧导致燃烧淬灭这个应该说是比较幸运了我的发动机基本一出现声振马上爆还没出现过淬灭完好保存的情况地面试车出现的情况可能是一阶段和二阶段之间的燃料层厚了一点并且喷燃比略小导致第一段燃料燃烧完成后转变为端面燃烧加之喷燃比不够