Test Rig Description

Figure 1 shows the planetary gearbox test rig. It consists of an induction motor, two planetary gearboxes, and a DC generator which is used to provide different loads to the test rig. The first planetary gearbox was used as a reducer with a transmission ratio of 5.76, and the second planetary gearbox was used as an increaser with a transmission ratio of 7.2.

Instrumentation

The signals measured from the test rig include, encoder signal, current, vibration signal from the planetary gearbox reducer, vibration signal from the planetary gearbox increaser and two temperature sensors on both planetary gearboxes (reducer and increaser). All signals are acquired with a 16-bit, 16-channel, and a sampling frequency of 100 kHz.

Typical Fault Simulation

The planetary gearbox test rig can simulate different types of faults, including sun gear and planet gear. Table 1 shows the fault types and the severities on the sun and planet gears. The fault simulation was performed separately (one fault at each time).

Table 1 Typical fault simulation

Key Publications

• [1] Zeng, Q., Feng, G., Shao, Y., Gu, F. and Ball, A.D., 2020. Planetary Gear Fault Diagnosis Based on An Instantaneous Angular Speed Measurement System With a Dual Detector Setup. IEEE Access, 8, pp.66228-66242.
• [2] Zeng, Q., Feng, G., Shao, Y., Gu, F. and Ball, A.D., 2020. Planetary Gear Fault Diagnosis Based on An Instantaneous Angular Speed Measurement System With a Dual Detector Setup. IEEE Access, 8, pp.66228-66242.
• [3] Guo, J., Shi, Z., Li, H., Zhen, D., Gu, F. and Ball, A.D., 2018. Early fault diagnosis for planetary gearbox based wavelet packet energy and modulation signal bispectrum analysis. Sensors, 18(9), p.2908.
• [4] Guo, J., Zhen, D., Li, H., Shi, Z., Gu, F. and Ball, A.D., 2020. Fault detection for planetary gearbox based on an enhanced average filter and modulation signal bispectrum analysis. ISA transactions.
• [5] Shen, Z., Shi, Z., Zhen, D., Zhang, H. and Gu, F., 2020. Fault Diagnosis of Planetary Gearbox Based on Adaptive Order Bispectrum Slice and Fault Characteristics Energy Ratio Analysis. Sensors, 20(8), p.2433.
• [6] Mones, Z., Alqatawneh, I., Zhen, D., Gu, F., & Ball, A. D. (2019, September). Fault Diagnosis for Planetary Gearbox Using On-Rotor MEMS Sensor and EMD Analysis. In 2019 25th International Conference on Automation and Computing (ICAC) (pp. 1-6). IEEE.
• [7] Mones, Z., Zhen, D., Alqatawneh, I., Zeng, Q., Gu, F., & Ball, A. D. (2018, September). Fault Diagnosis of Planetary Gearboxes via Processing the On-Rotor MEMS Accelerometer Signals. In 2018 24th International Conference on Automation and Computing (ICAC) (pp. 1-6). IEEE.
• [8] Alqatawneh, I., Kuosheng, J., Mones, Z., Zeng, Q., Gu, F., & Ball, A. D. (2018, September). Condition Monitoring and Fault Diagnosis Based on Multipoint Optimal Minimum Entropy Deconvolution Adjusted Technique. In 2018 24th International Conference on Automation and Computing (ICAC) (pp. 1-6). IEEE.
• [9] Tian, X., Abdallaa, G. M., Rehab, I., Gu, F., Ball, A. D., & Wang, T. (2015, September). Diagnosis of combination faults in a planetary gearbox using a modulation signal bispectrum based sideband estimator. In 2015 21st International Conference on Automation and Computing (ICAC) (pp. 1-6). IEEE.