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Article
Mathematical Modeling of the Elastic Ring Time-Varying Transmission Path for Planetary Gear Condition Monitoring
The mounted stationary sensor on the ring casing has become a widely accepted way to monitor the planetary gear condition and one challenging aspect of this method is the modulation effect caused by the moving...
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Chapter and Conference Paper
Adjustment Calculation Method for the Actuators of an Active Main Reflector Antenna
The panel adjustable reflector antenna can achieve higher surface accuracy, and it achieves panel adjustment through numerous actuators located below the panel. In order to quickly calculate the actuators adju...
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Chapter and Conference Paper
Theoretical Analysis of the Bearing Faults Impact on Large Aperture Antenna Pointing Accuracy
The reflector antenna has been widely used in the deep space exploration, radar warning and so on, which are all in a urgent demand for high pointing accuracy. The performance degradation and structural damage...
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Chapter and Conference Paper
Bearing Fault Diagnosis Using Transfer Learning with ICCEMDAN
Bearing is one of the fundamental components in the mechanical system and sometimes, it works for a long time under extreme conditions of high speed, which inevitably induces various faults. In recent years, m...
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Article
Hybrid-panel-based new design idea for large reflector antenna
Large reflector antennas are widely used as radio telescopes and active main reflectors are generally applied to improve the surface accuracy. Considering that the high cost has been one important problem in e...
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Article
The compound fault interaction analysis of the planet bearing system
This paper aims to understand the bearing distributed–localized compound fault interaction in planetary bearing system. To reveal the compound faults coupling mechanism, the planetary gear bearing distributed–...
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Chapter and Conference Paper
A Design Method for Reducing the Number of Actuators of a Large Active Main Reflector Antenna
Active main reflectors are often applied to the large aperture reflector antennas in engineering with a high operation frequency to improve the surface accuracy. Whether it is necessary to install actuators on...
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Chapter and Conference Paper
Dynamic Analysis of Large Aperture Antenna Rotor System Under Wind Disturbance
This paper presents a new strategy to study the vibration response of antenna pitch rotor system under wind load. Taking the pitch rotation mechanism of large reflector antenna as the research object, the thre...
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Article
Open AccessEffect of Facet Displacement on Radiation Field and Its Application for Panel Adjustment of Large Reflector Antenna
Large reflector antennas are widely used in radars, satellite communication, radio astronomy, and so on. The rapid developments in these fields have created demands for development of better performance and hi...
