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Feasibility Study to Extract Artemis-1 Fixed Base Modes While Mounted on a Dynamically Active Mobile Launch Platform

机译：可行性研究在安装在动态主动移动发射平台上时提取Artemis-1固定基础模式

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摘要

There are several challenges associated with the scheduled integrated modal test (IMT) of the Space Launch System (SLS) Artemis-1 flight vehicle mounted on the mobile launcher (ML). While the goal of the test is to characterize the Artemis-1, the inclusion of the ML as the support stand for the test means that the entire system must be well characterized. A considerable amount of effort and schedule will have to be devoted to understanding both the test stand (the ML) and the Artemis-1 flight vehicle, and there is a risk that the effort may not be completed in time for a successful launch. NASA has requested that alternative methods be investigated to generate test results that can remove the effects of the ML from the test. ATA Engineering, Inc., (ATA) was given a reduced model of the Artemis-1 flight vehicle's IMT configuration containing the candidate set of accelerometers and interface degrees of freedom (DOF). The model was used to determine how well ATA's fixed base correction technique is able to estimate fixed base modes from test data collected on the IMT. This paper presents the fixed base correction method results.
机译：与安装在移动发射器（ML）上安装的空间发射系统（SLS）Artemis-1的航班车辆的预定集成模态测试（IMT）有几个挑战。虽然测试的目标是表征Artemis-1，但将ML作为测试的支架置于测试意味着整个系统的表征很好。必须致力于了解考试支架（ML）和Artemis-1的飞行车辆的大量努力和时间表，并且有风险可能不会及时完成努力以成功发布。美国宇航局要求调查替代方法以产生可以去除ML从测试的效果的测试结果。 ATA Engineering，Inc.该模型用于确定ATA的固定基础校正技术如何能够从IMT收集的测试数据估计固定基础模式。本文提出了固定的基础校正方法结果。

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