可重复使用航天器力学试验方法及试验条件设计综述

Dynamic test method and design of test specifications for reusable spacecraft

  • 摘要: 针对可重复使用航天器的力学环境试验方法及试验条件设计,系统调研了当前最具代表性的2种国外可重复使用航天器的力学试验方法及其设计方法,包括航天飞机耐久性试验、损伤容限试验、无损检测方法,并将该方法的参照标准MIL-STD-1530D《飞机结构完整性计划(ASIP)》与我国GJB 67.6A—2008《军用飞机结构强度规范 第6部分:重复载荷、耐久性和损伤容限》进行对比分析,以及将“猎鹰9号”火箭基于Miner准则设计的部组件随机振动试验量级与试验时间与NASA-HDBK-7005、MIL-STD-1540E的计算结果进行对比分析,最后给出对我国开展可重复使用航天器力学试验方法和试验条件设计方法研究的建议。

     

    Abstract: In view to selecting appropriate dynamic tests and the related test conditions for reusable spacecraft, this paper investigates the test method and the design of test conditions for two kinds of typical reusable spacecraft developed in other countries. Firstly, the durability test, the damage tolerance tests, and the non-destructive inspection of space shuttles are discussed, with an analysis and a comparison between the MIL-STD-1530D Aircraft Structural Integrity Program (ASIP) and the GJB 67.6A—2008 Military Airplane Structural Strength Specification Part 6:Repeated Loads, Durability And Damage Tolerance. Then, the random vibration test level and the test duration designed for units on the Falcon-9 based on the Miner Criteria are compared with the calculation result according to the NASA-HDBK-7005 and the MIL-STD-1540E. Finally, suggestions are made for the domestic researches for developing China’s reusable spacecraft and the way to carry out dynamic test as well as to determine the test specifications.

     

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