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首页> 外文期刊>Journal of Fluids Engineering: Transactions of the ASME >Design of the Solenoid Valve of an Antilock Braking System With Reduced Flow Noise
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Design of the Solenoid Valve of an Antilock Braking System With Reduced Flow Noise

机译：减少流动噪声防袋制动系统电磁阀的设计

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摘要

Large eddy simulations are carried out to predict the flow noise produced in the solenoid valve of an antilock braking system (ABS) using Lighthill's acoustic analogy and the Ffowcs Williams and Hawkings (FW-H) surface integral method. The fluid inside the valve is assumed to be incompressible at a fixed temperature. The solenoid valve operation is realized by applying an overset grid methodology to the moving plunger, and the plunger has a linear motion in the axial direction. Several types of solenoid valves are numerically designed to maximally reduce the flow noise. The upstream flow is detached through a small opening between the plunger and the seat, which generates pressure fluctuation around the narrow gap, which is subject to high wall pressure fluctuations and shear stresses. Large eddy simulations are performed by varying the position of the flow separation. An optimal design of the valve is obtained, featuring a small radius of surface curvature, a smooth surface, and a large plunger tip area angle. Measurements are obtained from the optimal design to validate the design in a real vehicle performance test, and the predicted pressure frequency in the solenoid valve agreed well with the experimental results.
机译：进行大型涡流模拟，以预测使用灯灰体的声学比喻和FFOWS威廉姆斯和霍普林斯（FW-H）表面整体方法在防锁制动系统（ABS）的电磁阀中产生的流量噪声。假设阀内的流体在固定温度下不可压缩。通过向移动柱塞施加普雷重电网方法来实现电磁阀操作，并且柱塞在轴向上具有线性运动。几种类型的电磁阀在数值上设计成最大地降低流量噪声。上游流通过柱塞和座椅之间的小开口分离，该阀座和座椅围绕窄间隙产生压力波动，这受到高壁压力波动和剪切应力。通过改变流动分离的位置来执行大的涡流模拟。获得阀门的最佳设计，具有小的表面曲率半径，光滑的表面和大的柱塞尖端面积。从最佳设计中获得测量以验证真实车辆性能测试中的设计，并且电磁阀中的预测压力频率与实验结果很好。

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