分布式全液压压裂车驱动系统振动溯源及抑制

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关键词：全液压压裂车；泵控马达液压系统；振动溯源；谐振抑制；蓄能器中图分类号：TH137.1DOI：10.3969/j.issn.1004-132X.2026.03.024 开放科学（资源服务）标识码（OSID）：

Abstract：The low intrinsic frequency and low constant damping ratio of the pump-controled motor hydraulic systems resulted in system resonance. To solve the problem in hydraulic systems of 318E distributed fully hydraulic fracturing trucks，a resonance origin-tracing and suppression study was conducted through experiments and classical control theory. Firstly，experiments were carried out on the fracturing trucks，and through the frequencycharacterization，it was initially determined that the resonance originated from proximity of fracturing pump excitation frequency and hydraulic system intrinsic frequency. Further， a mathematical model of the pump-motor systems was established to determine the intrinsic frequency of hydraulic systems.A theoretical model of the fracturing pumps was established to clarify that under specific flow，the frequency of fracturing pump operating torque fluctuation was similar to the intrinsic frequency of hydraulic systems，leading to system resonance. The system resonant was then avoided by introducing an accumulator to reduce the inherent frequency to an uncommon flow. The experimental results show that compared with the original system without the accumulator，the peak pressure resonance of the hydraulic systems is reduced by 60% ，and the life and reliability of the hydraulic systems are greatly improved.

Key words： fullhydraulic fracturing truck； pump-controlled motor hydraulic system； resonance trace-ability；resonance suppression；accumulator

0 引言

近年国际石油能源价格出现大幅波动，同时受到能源供需矛盾的影响，油气，尤其是我国储量世界第一的页岩气，正逐渐成为推动国家未来工业发展的重要资源。（剩余12749字）