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runingTitle=null, highlight=null, articleAbstract=为了研究金属丝对固体火箭发动机药柱燃速的影响,选择6种导热性能和力学性能均较优的材料,做成细丝嵌入到HTPB推进剂内开展点火试验。分析了材料增速比与抗拉强度的关系以及压强对增速比的影响,开展了基于传热理论及燃面反算的增速比瞬态分析,对比分析了不同材料物性参数对增速比的影响。结果表明,铜银合金、银镍合金的抗拉强度是纯银的2.1倍、3.6倍,增速比分别为纯银的94%和43%,合金材料的增速比和强度更均衡; 工作平稳段平均压强从3.8MPa上升至9.1MPa时,银镍合金最大增速比从2.5提升至2.8; 高压下增速比从0升至最高3.25,随后降至2.65并趋于稳定,增速效果波动较大; 低压下基本无上升下降趋势,增速效果更稳定,与理论分析趋势吻合较好; 不同材料熔点、比热容与增速比呈负相关,与导热系数呈现正相关。, authors=null, authorsList=null, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, 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