Vibration Reduction Control of Variable Stiffness Torsional Vibration Absorber Based on Real Vehicle Transmission SystemDynamic Characteristics

doi:10.12382/bgxb.2021.0475

Abstract

Abstract: The semi-control of the frequency adaptive magnetorheological elastomer(MRE) torsional vibration absorber is a key step to reduce torsional vibration in the powertrain system. In this paper, aiming at the powertrain system of a tracked vehicle, a dynamic system model with a MRE variable stiffness torsional vibration absorber is established. Based on the model, a control strategy combining transient look-up table and steady-state optimization is proposed to significantly reduce the deviation of the identified external excitation dominant frequency, allowing the absorber to be capable of quickly following the dominant external excitation frequency, thereby achieving semi-active control of the vibration absorber. The simulation and experimental results indicate that the proposed integrated control scheme can improve damping performance by 10%.

Key words: variablestiffnesstorsionalvibrationabsorber, powertrainsystem, controlstrategy, externalexcitationdominantfrequency

CLC Number:

U463.212

GAO Pu， XIANG Changle， LIU Hui. Vibration Reduction Control of Variable Stiffness Torsional Vibration Absorber Based on Real Vehicle Transmission SystemDynamic Characteristics[J]. Acta Armamentarii, 2022, 43(10): 2443-2450.

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