Research on vibration damping performance of inerter in train vibration absorber

DOI:	10.11809/bqzbgcxb2023.10.005
Keywords:	dynamic vibration absorber; inerter; ISD suspension; intelligent optimization algorithm
Abstract:	The strategy of replacing the actual mass of the power absorber oscillator with the “virtual mass” of the inerter is proposed for the case where the power absorber itself has a large oscillator mass. Based on the “virtual mass” amplification characteristic of the ball screw inerter, the train vertical vibration model with Inerter Spring Damper(ISD) suspension is established, and the train vertical vibration model with conventional Dynamic Vibration Absorber(DVA) and inerter type DVA absorber is established. The dynamic performance of three different train models without DVA, conventional DVA and inerter type DVA is compared and analyzed by using the intelligent optimization algorithm and the empirical formula of conventional DVA parameters. The results show that DVA does have a damping effect on the vehicle vertical vibration, and the actual mass of the vibrator is lower for the same damping performance of the two DVAs, and the vehicle with inerter type DVA has a better damping effect than the traditional DVA vehicle with the same vibrator mass. The results provide a reference for replacing the actual mass of DVA oscillator with the “virtual mass” of the inerter.
Issue:	Vol. 44 No. 10 (2023)
Published:	2023-10-28
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