Optimal Design of Traction Gear Modification of High-Speed EMU Based on Radial Basis Function Neural Network

• Published in: IEEE access Vol. 8; pp. 134619 - 134629
• Main Authors: Tang, Zhaoping, Wang, Manyu, Hu, Yutao, Mei, Ziyuan, Sun, Jianping, Yan, Li
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 2020; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Acoustic noise; Analytical models; Computer simulation; Design modifications; Design optimization; Design parameters; Dynamic characteristics; Electric railroads; Finite element method; Gears; Genetic algorithms; Helical gears; High speed rail; Mathematical model; Mathematical models; multi-island genetic algorithm; Neural networks; Noise; Numerical methods; optimal design of modification; Optimization; Parameter modification; Radial basis function; Railcars; RBF neural network; Reliability analysis; Shape; Software; Traction; Traction gear of EMU; Vibrations
• ISSN: 2169-3536; 2169-3536
• DOI: 10.1109/ACCESS.2020.3007449

The dynamic characteristics of the traction gear transmission system have a great influence on the safety, comfort, and reliability of EMU (electric multiple units). Combining the methods of theoretical analysis, numerical simulation, and optimization design theory, establishing a parameterized gear modification model. Meanwhile, designing reasonable shape modification schemes and parameters. The dynamic characteristics, vibration response characteristics, and acoustic response characteristics of gear meshing of CRH380A high-speed EMU under continuous traction conditions are analyzed. The corresponding relationship between gear modification parameters and gear transmission radiation noise is approximated by finite element simulation data and RBF (radial basis function) neural network. Using a multi-island genetic algorithm to optimize gear modification parameters to minimize gear transmission noise, further seeking to meet the low-noise modification design of high-speed train traction helical gear transmission system under continuous operating conditions method.