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Visual System Analysis of High Speed On-Off Valve Based on Multi-Physics Simulation
Technical Paper
2022-01-0391
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
High speed on-off valves (HSVs) are widely used in advanced hydraulic braking actuators, including regenerative braking systems and active safety systems, which take crucial part in improving the energy efficiency and safety performance of vehicles. As a component involving multiple physical fields, the HSV is affected by the interaction of the fields-fluid, electromagnetic, and mechanical. Since the opening of the HSV is small and the flow speed is high, cavitation and vortex are inevitably brought out so that increase the valveās noise and instability. However, it is costly and complex to observe the flow status by visual fluid experiments. Hence, in this article a visual multi-physics system simulation model of the HSV is explored, in which the flow field model of the HSV built by computational fluid dynamic (CFD) is co-simulated with the model of hydraulic actuator established by AMESim. Accordingly, the pressure and the opening of the HSV vary with actual working state of the braking system during simulation. The real-time flow status inside the HSV is visually obtained. As a result, it can serve a reference for reducing hydraulic noise, optimizing the structural parameters and control strategy.
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Meng, A., Garris, C., Wei, L., and Liu, H., "Visual System Analysis of High Speed On-Off Valve Based on Multi-Physics Simulation," SAE Technical Paper 2022-01-0391, 2022, https://doi.org/10.4271/2022-01-0391.Also In
References
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