...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Aeronautical Journal >Riveted patch repairs for helicopter tail drive shafts with battle damage
【24h】

Riveted patch repairs for helicopter tail drive shafts with battle damage

机译：直升机尾部驱动轴的铆钉补丁修复有战斗损坏

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The ability to repair battle damage in a helicopter tail drive shaft (TDS) caused by small arms fire is a very important capability. A successful repair will enable the helicopter to continue its mission or at least allow it to return safely to base. This paper describes assessment of conventional and novel repair techniques using riveted metallic patches to restore the balance and strength of a damaged TDS. Analytical approaches are provided for the design of the repair. Modal analyses indicated that the effect of repair on change of the natural frequency of the TDS was negligible. An experimental testing program was conducted to validate the proposed repair methods. It has been demonstrated that the proposed repair methods achieved sufficient balance restoration by a defined repair procedure, assuming the unbalance could not be measured during a repair in the field. The conventional thin, single aluminium sheet, riveted repair significantly restored static strength. However, it only gave a fatigue life of 15hrs, and thus the repaired shaft may only be used for limited time for a military mission. The improved thick, two-half aluminium shell, riveted repair had sufficient static strength and met the 100-hour fatigue requirement.
机译：修复由小武器射击引起的直升机尾部驱动轴（TDS）战斗损伤的能力是非常重要的功能。成功的维修将使直升机能够继续执行其任务，或者至少使其能够安全返回基地。本文介绍了使用铆接的金属贴片来恢复受损TDS的平衡和强度的常规和新型修复技术的评估。提供了用于维修设计的分析方法。模态分析表明，修复对TDS固有频率变化的影响可忽略不计。进行了实验测试程序以验证所提出的修复方法。已经证明，假设在现场维修期间无法测量不平衡，建议的维修方法可通过定义的维修程序实现足够的平衡恢复。常规的薄铝单片铆接修复可显着恢复静态强度。但是，它的疲劳寿命仅为15小时，因此，修复后的轴只能在有限的时间内用于军事任务。经过改进的厚实的两半铝壳铆接式修复具有足够的静态强度，并满足了100小时的疲劳要求。

著录项

  • 来源
    《The Aeronautical Journal》 |2014年第1205期|811-827|共17页
  • 作者

    J. Wang; A. A. Baker; D. Bitton;

  • 作者单位

    Air Vehicles Division, Defence Science and Technology Organisation Fishermans Bend, Australia;

    Air Vehicles Division, Defence Science and Technology Organisation Fishermans Bend, Australia, Advanced Composite Structures Australia Pty Fishermans Bend, Australia, Co-operative Research Centre for Advanced Composite Structures Fishermans Bend, Australia;

    Advanced Composite Structures Australia Pty Fishermans Bend, Australia, Co-operative Research Centre for Advanced Composite Structures Fishermans Bend, Australia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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