ISO 24411:2022 宇宙システム - 微振動試験 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 14, Space systems and operations.

Introduction

Spacecraft on-orbit experience a micro-vibration environment which can induce severe disturbances to sensitive payload with high pointing stability and/or position stability. It can affect mission success of payload equipment, e.g. earth observation, space telescopes, optical experiments, telecommunication.

For such applications, it is necessary to verify their resistance to the micro-vibration environment on-orbit. This verification may be supported by spacecraft level micro-vibration tests on ground. In that case:

• the vibration transmissibility from the disturbance sources to the sensitive payloads should be investigated;
• the performance of these payloads under the influence of the relevant disturbance sources should be identified by response measurements;
• the modal parameters of the spacecraft should be extracted to update the analysis model.

This document specifies contents to meet test requirements. It includes test purpose, general test information, test equipment, test requirements and recommendations, test flow and procedure, test interruption and handling, test data and result evaluation, and test reports for spacecraft level micro-vibration tests.

1 Scope

This document specifies requirements for the implementation of spacecraft level micro-vibration tests on space systems to be considered by test providers, including test designers and test engineers. It also gives guidance for spacecraft designers and interested parties.

The spacecraft level micro-vibration test is applicable to space systems which contain payload equipment sensitive to the micro-vibration environment which only induced by the internal disturbance sources on-orbit, e.g. for the purpose of earth observation, space telescopes, optical experiments, telecommunication.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

Bibliography