Impact of Non-linear Damping on Vibration Characteristics of Spur Pair Gear

This chapter delves into the impact of non-linear damping on the vibration characteristics of spur gear systems, focusing on dynamic modeling, the influence of non-linear damping, and its effects on transmission error. The study introduces an exponential kernel damping model and time-varying stiffness to simulate gear behavior, comparing it with traditional linear damping methods. Key findings include the observation that non-linear damping leads to higher dynamic transmission error amplitudes and more frequent tooth impacts, providing a more realistic representation of gear meshing behavior. The Continuous Wavelet Transform (CWT) is utilized for detailed time-frequency analysis, revealing distinct frequency components and energy distribution patterns. The conclusion emphasizes the importance of accounting for non-linear damping effects in gear systems, highlighting the benefits of demodulation methods and high-resolution analysis for evaluating non-linear damping impacts.