Research on Weak Fault Diagnosis Method of Dual - Axes Precision Gear Transmission System Aircraft Strength Research Institute China

Format:

Book

Conference/Event

Author/Creator:

Han, Wei, author.

Contributor:

Chang, Yingjie

Conference Name:

SAE 2024 Vehicle Powertrain Diversification Technology Forum (2024-12-06 : Xi'An, China)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2025

Summary:

This paper focuses on the weak fault diagnosis of a dual - axes precision gear transmission system. Firstly, it elaborates on the structure and working principle of the system. Comprising components like azimuth and pitch channels, motors, and control units, the pitch channel's gear transmission chain is a key research area.Subsequently, fault modes and their harmfulness are analyzed. Different faults such as tooth surface wear and pitting are considered. These faults can lead to serious consequences like system failure and mission deviation.Based on this, a test system is constructed. It includes sensors and a data acquisition system to simulate faults and collect vibration signals. The signals are then analyzed to understand the system's behavior.Finally, a weak fault feature index based on time - domain entropy is developed. A threshold setting method based on severity index is also proposed. These methods together enable the accurate diagnosis of weak faults in the system, which is crucial for ensuring the proper functioning and reliability of the dual - axes precision gear transmission system

Notes:

Vendor supplied data

Publisher Number:

2025-01-7052

Access Restriction:

Restricted for use by site license