Gyroscopic angular rate measurement device. In-service troubleshooting experience

The paper considers the gyroscopic device for measuring angular rates, which was designed and developed in the Kuznetsov Research Institute for Applied Mechanics. The device is based on the floated gyroscope with magnetic centering of a floater and a rotor gas-lubricated spin-axis bearing system. Today this gyroscopic device is used in flight controls of Russian-made spacecrafts of various applications (communications satellites, Earth remote sensing satellites, scientific space vehicles). Both functional and kinematic diagrams’ features of the gyroscopic device are described. The main principles and monitoring techniques of the in-service device performance are presented. The basic troubleshooting methodology is discussed. Some real examples of in-service troubleshooting are given. They are analyzed considering their manifestation peculiarities, the study results, confirmation of the primary causes of failures, and follow-up measures to prevent the repeated failures.

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