• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Technical Conference and Table Top Exhibition >METHODS OF STEP-BY-STEP REDUCTION OF STRUCTURAL MASS OF LV LARGE-SIZE PAYLOAD FAIRINGS BY APPLYING ADVANCED COMPOSITE MATERIALS
【24h】

METHODS OF STEP-BY-STEP REDUCTION OF STRUCTURAL MASS OF LV LARGE-SIZE PAYLOAD FAIRINGS BY APPLYING ADVANCED COMPOSITE MATERIALS

机译：通过施加先进的复合材料，通过应用先进的复合材料逐步降低LV大尺寸有效载荷整体化的方法

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Since the end of 1980s large-size payload fairings for LV Proton made of composite materials are used in Khrunichev Space Center. A carbon-fiber reinforced plastic (CFRP) payload fairing (PLF) 13m long and 4.35m over was developed for the Proton-M LV with its Breeze-M upper stage. The maiden flight of that PLF took place in 1999. Since that time the payload fairing structure has been improved more than once. Due to the use of new composite material types it became possible to reduce the payload fairing mass from 3000 kg to 2000 kg with the PLF length increased from 13 m to 15m. Methods to resolve the problem of mass reduction for a large-scale payload fairing of a three-layer structure with CFRP skins are examined. The main way of decreasing the PLF case mass is by applying up-to-date high strength carbonic fibers with a high elastic modulus. A problem of optimization of the PLF three-layer structure is examined. The second way is to reduce the density of the honeycomb core; the third way is to reduce the mass of glues and filling compositions. Tests of specimen, units or full-scale structures were conducted at every stage of the PLF mass reduction.
机译：自20世纪80年代以来，在Khrunichev Space Center中使用了由复合材料制成的LV质子的大尺寸有效载荷整流罩。碳纤维增强塑料（CFRP）有效载荷整流罩（PLF）为13米长和4.35米，为Proton-M LV开发了其微风-M上阶段。该PLF的少女航班于1999年举行。由于该时间，有效载荷整流结构已经多次提高。由于使用新的复合材料类型，可以将有效载荷整流量从3000公斤降低到2000千克，PLF长度从13米增加到15米。研究了用CFRP皮肤对三层结构进行大规模有效载荷整体化的质量减少问题的方法。降低PLF壳体质量的主要方式是施加具有高弹性模量的高强度碳纤维。检查了PLF三层结构的优化问题。第二种方法是降低蜂窝核心的密度;第三种方法是降低胶水和填充组合物的质量。在PLF质量减少的每个阶段进行样品，单位或全尺度结构的测试。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号