| 液力减速器制动性能及其两相流分析方法研究 |
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| 引用本文： | 魏巍,李慧渊,邹波,闫清东.液力减速器制动性能及其两相流分析方法研究[J].北京理工大学学报,2010,30(11):1281-1284. |
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| 作者姓名： | 魏巍 李慧渊 邹波 闫清东 |
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| 作者单位： | 北京理工大学,车辆传动重点实验室,北京,100081;北京理工大学,机械与车辆学院,北京,100081;中国北方车辆研究所,北京,100072;北京理工大学,机械与车辆学院,北京,100081 |
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| 基金项目： | 北京理工大学国家重点实验室基金资助项目(9140C35020905) |
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| 摘 要： | 为对车用液力减速器在制动过程中制动性能进行准确预测,在全充液的单一液相流动到不充液的单一气相流动的整个工作过程中,对于无内环的液力元件采用混合入、出口的边界条件处理方法,对充液率分别为100%、80%、60%、40%及20%时的工况分别进行CFD液力减速器内流场数值模拟,获取不同充液率和不同转速下的制动性能曲线,并得到对应不同工况的速度和压力场分布特性.结果表明,CFD数值模拟可以较为准确地预测制动性能,并且混合入、出口的边界条件处理方法更符合无内环叶轮机械内部的实际流动本质.
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| 关 键 词： | 液力减速器 两相流 制动性能 充液率 |
| 收稿时间： | 2009/11/30 0:00:00 |
Study on Braking Performance and Analysis of Two-Phase Flow in Vehicular Hydraulic Retarder |
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| WEI Wei,LI Hui-yuan,ZOU Bo and YAN Qing-dong.Study on Braking Performance and Analysis of Two-Phase Flow in Vehicular Hydraulic Retarder[J].Journal of Beijing Institute of Technology(Natural Science Edition),2010,30(11):1281-1284. |
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| Authors: | WEI Wei LI Hui-yuan ZOU Bo and YAN Qing-dong |
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| Institution: | WEI Wei1,2,LI Hui-yuan3,ZOU Bo2,YAN Qing-dong2(1.National Key Laboratory of Vehicular Transmission,Beijing Institute of Technology,Beijing 100081,China,2.School of Mechanical Engineering,3.China North Vehicle Research Institute,Beijing 100072,China) |
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| Abstract: | To accurately predict brake performance of vehicular hydraulic retarder during brake process,in the working procedure from liquid phase to gas phase,the working condition with different liquid-filled ratios of 100%,80%,60%,40%and 20% were numerically simulated by imposing reasonable boundary condition of mixing flow passage inlet and outlet.The brake performance curves and power loss curve of different liquid-filled ratios and rotating speeds were obtained.Result of simulation shows that the CFD numerical s... |
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| Keywords: | hydraulic retarder two-phase flow brake performance liquid-filled ratio |
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