Tekerlek Kümesindeki Arıza Durumunda Uzay Aracı Yönelim Kontrol Sisteminin Sürdürülebilirlik Kabiliyetinin Sağlanması

Bu çalışmada herhangi bir reaksiyon tekerleğinin arızalanması duru- munda manyetik eyleyicinin minimum fazlalık kümesine sahip bir uzay aracı yönelim kontrol sisteminin sürdürülebilirliğini sağlamaya yönelik bir yöntem sunulmaktadır. Bilgisayar simülasyonu so-nuçları elde edilmiş ve General Electric şemasına göre dört tekerlek-ten her- hangi ikisinin arızalanması, tekerlek kümesinin dijital kontro-lünün ve manyetik sürücünün arazi araştırma uydusunun verilen dü-nyasal gözlem kabiliyetini korumasına izin verdiği tespit edilmiştir.

Ensuring Survivability of Spacecraft Attitude Control System at Failures in Flywheel Cluster

A method for ensuring the survivability of a spacecraft attitude con- trol system with minimally redundant cluster of the flywheels and magnetic actuator at the faults of any reaction wheels are presented. The results of computer simulation were obtained and it was found if any two of the four flywheels according to the General Electric scheme fail, digital control of the flywheel cluster and magnetic drive allows the land-survey satellite to maintain the ability for observation of given terrestrial targets.

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