Rolling element bearings are the most critical parts of any rotary mechanism. One of the
challenges in any bearing design is to minimize the friction and maximize life for a particular …

The increased need in pointing performance for Earth observation and science Space
missions together with the use of lighter and flexible structures directly come with the need of …

Reaction wheel assemblies (RWAs) are a source of disturbance in satellites, and they are
regarded as the largest jitter contributor in optical payloads. In order to ensure a stringent …

MINIMIZING microvibrations onboard spacecraft is a key issue for current and future space
systems that require high pointing accuracy and stringent stability performance [1–3], for …

Predicting, managing, controlling, and testing spacecraft microvibrations due to on-board
internal disturbance sources is a formidable multi-disciplinary systems engineering …

In order to suppress the influence of the synchronous vibration generated by the unbalance
of magnetically suspended control moment gyro on the attitude control accuracy and stability …

The micro-vibrations generated by equipment onboard spacecraft can significantly affect the
performance of sensitive payloads; in particular mid to high frequency band micro-vibrations …

MOMENTUM exchange devices are a fundamental component of most spacecraft for both
coarse attitude control and precision pointing. Many modern spacecraft include three or …

The control moment gyroscope (CMG) is used as the actuator of attitude control for modern
satellites. Because of static and dynamic rotor imbalances and installation errors, it becomes …

抄録 Investigating disturbance properties of reaction wheels (RWs), a key component in
attitude control system of spacecraft, is important for health monitoring of RWs, exploration of …