基于多物理场的先导式电磁阀阻尼器时滞特性研究

Hansheng Wen, Haibo Huang, Wenjian Zhang, Mingliang Yang, Weiping Ding
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引用次数: 0

摘要

半主动悬挂系统的发展引入了先导式电磁阀阻尼器(PSVD),它可以根据不同的路况调整阻尼特性,同时兼顾稳定性和舒适性。然而,PSVD 的附加控制系统和阀控部件使得在切换控制电流信号时避免阻尼力响应的时滞成为一项挑战。这种时滞特性会严重影响控制系统的性能,使其难以达到最佳动态性能,并可能危及驾驶员和乘客的安全。因此,理解和表示 PSVD 时滞特性并研究其影响已成为半主动悬架领域的重要研究领域。本文首先解释了 PSVD 时滞特性的产生机理。文章分析了 PSVD 的结构和工作原理,确定了两种主要的时滞类型:电磁时滞和惯性时滞。针对现有模拟模型的局限性,该研究将参数化和有限元模拟相结合,创建了 PSVD 的多物理场时滞特性动力学表示模型,其中包含电、磁、机械和流体等方面。为了验证时滞特性仿真模型的准确性,对 PSVD 的速度和时滞特性进行了测试。将模拟结果与测试结果进行比较,结果表明滞后时间的最大误差符合工程信心要求。这证实了建立 PSVD 时滞特性仿真模型的可行性。最后,我们利用仿真模型分析了 PSVD 在不同工作条件下的总滞后时间。它探讨了 PSVD 总滞后时间与各组件滞后时间之间的关系,提出了滞后时间分解关系,并研究了滞后时间的关键影响因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Research of time lag characteristics of Pilot-operated Solenoid Valve Damper based on multi-physics field
The development of semi-active suspensions has introduced Pilot-operated Solenoid Valve Dampers (PSVD) that can adjust damping characteristics for different road conditions while considering stability and comfort. However, the PSVD’s additional control system and valve-controlled components make it challenging to avoid time lag in the response of the damping force when the control current signal is switched. This time lag characteristic significantly impacts the performance of the control system, making it difficult to achieve optimal dynamic performance and potentially compromising the safety of drivers and passengers. As a result, understanding and representing the PSVD time lag characteristics and investigating their influence have become important research areas in the field of semi-active suspension. This article begins by explaining the mechanism behind the generation of PSVD time lag characteristics. It analyzes the structure and operating principle of the PSVD, identifying two main types of time lag: electromagnetic time lag and inertial time lag. To address the limitations of existing simulation models, the study combines parameterization and finite element simulation to create a multi-physics field time lag characteristics kinetic representation model of the PSVD, incorporating the electric, magnetic, mechanical, and fluid aspects. To validate the accuracy of the time lag characteristics simulation model, tests on the velocity and time lag characteristics of the PSVD are conducted. The simulation results are compared to the test results, demonstrating that the maximum error of the lag time meets the engineering confidence requirement. This confirms the feasibility of establishing a simulation model for the PSVD time lag characteristics. Finally, we analyze the PSVD total lag time under different working conditions using the simulation model. It explores the relationship between the PSVD total lag time and the lag time of each component, proposes a lag time decomposition relationship, and investigates the crucial influencing factors on the lag time.
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