考虑迟滞特性的自增容弹性压力油箱建模研究

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关键词：液压元件；轻量化；压力油箱；数学模型；迟滞特性；编织纤维中图分类号：TH137DOI：10.3969/j.issn.1004-132X.2026.02.002 开放科学（资源服务）标识码（OSID）：

Modeling of Self-expanding Elastic Pressurized Reservoir Considering Hysteresis Characteristics

YAO Jing1.2 WANG Dingyu2 LIANG Dong² HAO Jinlu² HE Aiwen² 1.State Key Laboratory of Crane Technology，Yanshan University，Qinhuangdao，Hebei， 066004 2.School of Mechanical Engineering，Yanshan University，Qinhuangdao，Hebei， O66004

Abstract：To meet the demands for high-pressure，lightweight hydraulic reservoirs in high-end mo bile equipment，a self-expanding elastic pressurized reservoir （SEPR） was proposed. The rubber-woven composite material was used to replace the traditional metal reservoir shell. The system achieved oil volume compensation and pressure output through the flexible deformations of rubber and the reinforcement provided by the extermal woven fiber.Based on the geometric characteristics of the Woven fiber and the force analysis of the shell，the ideal static mathematical modelof the SEPR was established，and the Maxwellhysteresis model was introduced to modify the model. The relationships among SEPR structural parameters，volume，and pressure were obtained. Based on the flow equation，force balance equation，and volume formula，the dynamic nonlinear mathematical model of the SEPR was established. Based on the tests of displacement/pressure hysteresis characteristics of the SEPR，the model parameters were identified. The results show that the SEPR may reach a maximum pressure of 530kPa while weighing only 950 g. The SEPR exhibits strong motion-tracking behavior with the hydraulic cylinder under sinusoidal excitation.As the step amplitude increases，both of the pressure rise time and the pressure change amplitude increases under the oil inlet conditions.

Key words：hydraulic component；lightweight；pressurized reservoir；mathematical model；hyster esis characteristic；woven fiber

0 引言

液压系统具有功重比高、响应快、可无级调速等优点，是高端移动装备实现大功率传动与驱动的核心部件。（剩余15562字）