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本文提出了确定火箭发动机维修要求和使用寿命的方法。该方法利用了从发动机阵地检修、阵地有缺陷的构件、实验室试验和试车台热试车等方面得到的经验数据。该方法根据与空军后勤部签订的合同,在航空喷气技术系统公司执行大力神Ⅱ武器系统(LGM-25C)使用寿命分析计划的过程中形成。从1965年至今,按照使用寿命分析计划,定期从战斗弹上抽取发动机子样进行试验、分解和分析。迄今,使用寿命分析计划已将大力神Ⅱ发动机的使用寿命由设计目标原有3年延长到19年,并取消了发动机的定期大修。对如何获取信息并将其用于延长发动机及其组件的使用寿命进行了讨论。使用寿命分析计划为制订必需的故障检修措施(设计规范和/或技术规范的更改)和为按时完成所需的后勤保障提供了所需的准备时间。使用寿命分析计划的方法能够精确地确定和规划整个计划寿命期间备件的需要量。
This paper presents ways to determine the rocket engine maintenance requirements and service life. The method uses empirical data obtained from engine overhauls, defective components, laboratory tests, and hot test runs of the test bench. The method was based on a contract with the Air Force Logistics Department formed during the implementation of the life-time analysis program of the Aerospatiale II Weapon System (LGM-25C) by Air Jet Systems. From 1965 to the present, according to the life-cycle analysis plan, regular sampling of engine sub-samples from battle bombs was conducted, analyzed and analyzed. To date, the life-cycle analysis program has extended the service life of the Hercules II engine from its original design goal of three years to 19 years and canceled its regular engine overhaul. Discussions were made on how to obtain information and use it to extend the life of the engine and its components. The life-cycle analysis plan provides the required lead-time to develop the necessary troubleshooting interventions (changes in design specifications and / or specifications) and to provide the required logistical support on time. Life-cycle analysis planning methods accurately identify and plan for the entire planned life cycle spare parts requirements.