首页|水介质缓速器定子叶轮进液口结构优化设计与分析

水介质缓速器定子叶轮进液口结构优化设计与分析

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为有效降低现有水力缓速器定子叶轮铸造难度、提升定子叶轮铸造成功率及其制动扭矩性能,基于自主研发的水介质缓速器样机结构模型,采用CAD-CFD设计与仿真优化协作方法,采用均匀壁厚的设计思路,设计出一种对称凸台式进液口结构,金属液沿着进液口两侧的叶片(厚度2 mm)对称流向对称的六边形结构的进液口(1.5 mm),浇铸流动性好,可有效避免出现"铸件缺口、缩孔缩松的缺陷";制动力矩CFD仿真计算结果对比显示,对称凸台式进液口沿着相应叶片的对称布局,可以有效降低凸台对涡流损耗效应的扰动,使得该型式定子叶轮发挥出较佳的制动扭矩性能.该研究为进行水介质缓速器样机定子叶轮的结构优化设计与应用打下基础.
Optimization Design and Analysis of the Inlet Structure of the Hydraulic Retarder Stator
In order to effectively reduce the difficulty of casting the stator of the hydraulic retarder,improve the success rate of casting the stator and its braking torque performance,based on the self-developed structural model of the hydraulic retarder prototype,the CAD-CFD design and simulation optimization collaboration method is adopted,and the design concept of uniform wall thickness is adopted.A symmetrical convex liquid inlet structure is designed,and the metal liquid flows symmetrically along the blades on both sides of the inlet(with a thickness of 2 mm)to the symmetrical hexagonal structure inlet(1.5 mm).The casting flow is good,which can effectively avoid defects such as casting gaps,shrinkage,and porosity;the comparison of CFD simulation results for braking torque shows that the symmetrical layout of the inlet of the symmetrical convex table along the corresponding blades can effectively reduce the disturbance of the convex table on the eddy current loss effect,allowing this type of stator to exert better braking torque performance.This study lays the foundation for the structural optimization design and application of the stator of the hydraulic retarder prototype.

Hydraulic retarderLiquid inletOptimization designAnalysis

黄俊刚、陈荣艺、吴书恒

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广州铁路职业技术学院,广东广州 511300

水介质缓速器 进液口 优化设计 分析

广州市科技计划项目2022广州市高等教育教学质量与教学改革工程项目

2022010117662022MSGZS011

2024

拖拉机与农用运输车
洛阳拖拉机研究所 洛阳西苑车辆与动力检验所有限公司 中国农业机械学会拖拉机分会

拖拉机与农用运输车

影响因子:0.157
ISSN:1006-0006
年,卷(期):2024.51(3)
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