An analytical design approach for self-powered active lateral secondary suspensions for railway vehicles

Wang, P; Li, H; Zhang, J; Mei, TX

Abstract

In this paper, an analytical design approach for the development of self-powered active suspensions is investigated and is applied to optimise the control system design for an active lateral secondary suspension for railway vehicles. The conditions for energy balance are analyzed and the relationship between the ride quality improvement and energy consumption is discussed in detail. The modal skyhook control is applied to analyze the energy consumption of this suspension by separating its dynamics into the lateral and yaw modes, and based on a simplified model, the average power consumption of actuators is computed in frequency domain by using the Power Spectrum Density (PSD) of lateral alignment of track irregularities. Then the impact of control gains and actuators' key parameters on the performance for both vibration suppressing and energy recovery/storage is analyzed. Computer simulation is used to verify the obtained energy balance condition and to demonstrate that the improved ride comfort is achieved by this self-powered active suspension without any external power supply.

Citation

Wang, P., Li, H., Zhang, J., & Mei, T. (2015). An analytical design approach for self-powered active lateral secondary suspensions for railway vehicles. Vehicle System Dynamics, 53(10), 1439-1454. https://doi.org/10.1080/00423114.2015.1050964

• Journal Article Type: Article
• Acceptance Date: May 10, 2015
• Publication Date: Aug 27, 2015
• Deposit Date: Jul 31, 2015
• Journal: Vehicle System Dynamics
• Print ISSN: 0042-3114
• Electronic ISSN: 1744-5159
• Publisher: Taylor and Francis
• Peer Reviewed: Peer Reviewed
• Volume: 53
• Issue: 10
• Pages: 1439-1454
• DOI: https://doi.org/10.1080/00423114.2015.1050964
• Publisher URL: http://dx.doi.org/10.1080/00423114.2015.1050964
• Related Public URLs: http://www.tandfonline.com/toc/nvsd20/current