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本文提供了再入飞行器鼻锥材料筛选试验的结果,这些筛选试验是在俄亥俄州莱特·彼得逊空军基地的空军飞行动力实验室再入鼻锥试验设施上进行的。这些试验称为“M组”试验,是政府部门为发展先进鼻锥材料而进行的若干批鼻锥筛选试验中的第一批试验。至少有10个承包商和政府部门参加了这些试验,共计试验了75个模型和21种材料。这组试验的结果以及试验后的若干分析工作,为当前的鼻锥材料建立了一个广阔的数据基础。这些模型中。有4种是石墨材料,有17种是碳—碳材料。碳—碳编织形式包括1—1—1、1—1—3、1—1—4、1—1—5、2—2—1、2—2—3、2—2—4、2—2—6的排布形式,外加一种极向编织方案。关于碳—碳的制作,至少包括了五种工艺方法。从鼻锥材料在再入鼻锥试验设施中展示的性能来说,最好的材料是994石墨和2—2—3精细编织碳—碳。另外。其余那些石墨和几种碳—碳结构也都是有希望的材料。
This article provides the results of a screening test of material for the nose cone of reentry vehicles that was conducted at the NEXT facility at the Air Force Flight Dynamics Laboratory at Wright Peterson Air Force Base in Ohio. These tests, known as the “Group M” tests, were the first of several batches of nose cone screening tests conducted by government agencies to develop advanced nose cone materials. At least 10 contractors and government agencies participated in these experiments, testing a total of 75 models and 21 materials. The results of this group of tests and several post-test analyzes have established a vast data base for current nose cone materials. In these models. There are 4 kinds of graphite materials, 17 kinds of carbon-carbon materials. Carbon-carbon braid forms include 1-1-1, 1-1-3, 1-1-4, 1-1-5, 2-2-1, 2-2-3, 2-2-4, 2- 2-6 arrangement of the form, plus a kind of polar weaving program. About carbon-carbon production, including at least five processes. From the performance of the nose cone material demonstrated in the reentry nose cone test facility, the best materials are 994 graphite and 2-2-3 finely braided carbon-carbon. In addition. The rest of those graphite and several carbon-carbon structures are also promising materials.