Experimental research and optimal control of vibration screed system (VSS) based on fuzzy control

• Main Authors: Peiling Wang, Nguyen Van Liem, Jianrun Zhang
• Format: Article
• Language: English
• Published: JVE International 2020-09-01
• Series: Journal of Vibroengineering
• Subjects: asphalt paver dynamic model; vss performance; vibration screed; fuzzy control
• Online Access: https://www.jvejournals.com/article/21560
• ISSN: 1392-8716; 2538-8460

To enhance the compression performance and improve the paving quality of the VSS of the pavers, the experimental research of the VSS is performed to assess the VSS’s vibration stability under various excitations of the tampers and vibrator screed. A VSS’s dynamic model is also established to simulate and evaluate the VSS’s working performance. The root-mean-square (RMS) acceleration responses of the vertical and pitching motions at centre of gravity of the screed floor are chosen as the objective functions. In order to increase the VSS’s working performance, the dynamic parameters of the angular deviations of tampers are then controlled based on Fuzzy control. The research results indicate that the RMS value of the vertical screed motion is remarkably increased, concurrently the RMS value of the pitching screed angle is significantly reduced by controlling the angular deviations of tampers under different excitation frequencies of the VSS. Therefore, the VSS’s working performance is significantly improved in comparison without the control of the angular deviations.