摘要
使用液力缓速器,能够较好的避免重型车辆长下坡制动工况下行车制动器的热衰退现象。从简化现用液力缓速器结构、提高产品制造工艺性出发,基于流体输送机械工作原理,提出了一种新型液力缓速器结构并进行了样机设计。通过对原理样机试验测试,初步验证了新型液力缓速器结构方案可行。通过理论计算和应用CFD工具软件,针对新型液力缓速器不同叶型的性能进行数值模拟,得出了缓速器结构优化设计方向,能够对国内液力缓速器技术研究与产品正向开发提供参考。
The application of hydraulic retarder can better avoid the brake-fade of service brakes in heavy vehicles under the braking condition of long downhill path. We propose a new structure of hydraulic retarder and carry out a prototype design based on the working principle of fluid conveying machines to simplify the structure of the existing hydraulic retarder and improve the manufacturability. Through the prototype test,the feasibility of the new hydraulic retarder is validated preliminarily. By theoretical calculation and application of the CFD tool software,we simulate and analyze the performance of the new hydraulic retarder and obtain the optimal design direction of the retarder,which can provide a reference for the technical research and product positive development of hydraulic retarder in China.
出处
《液压与气动》
北大核心
2018年第2期104-110,共7页
Chinese Hydraulics & Pneumatics
关键词
液力缓速器
CFD
制动性能
设计制造
hydraulic retarder
CFD
braking performance
design and manufacture
