基于CFD的液力变矩器导轮优化设计
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河北省科技计划项目(12211906);河北省高等学校科学技术研究重点项目(ZH2012015)


Hydraulic torque converter stator blade optimization design based on the CFD
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    摘要:

    基于CAD-CFD,分析影响液力变矩器整体性能的因素并进行优化。首先使用BladeGen对液力变矩器进行参数化造型,基于CFX软件对不同速比工况进行计算,统计液力变矩器性能变化曲线并与试验对比。分析导轮能头分布特点,并根据流场分布对导轮进行结构优化,使内、外环上导轮翼型结构分别适应不同的速比工况,最终实现对低速比工况时导轮能头损失的优化,优化后涡轮输出力矩增量最大达到175.36 N·m,液力变矩器在0速比工况下变矩比增加0.344,效率在0.274速比工况下增加2.95%。

    Abstract:

    Hydraulic torque converter optimization design was based on CAD-CFD, this paper analysis the influence factors to the whole performance and optimal design the hydraulic torque converter. Modeling of the hydraulic torque converter was parameterized by using BladeGen at first, the working conditions in different speed ratio were calculated by basing on CFX, statistical performance curves of the hydraulic torque was compared with experiment results. This paper analyzed the characteristics of energy head distribution, and obtained optimal structure by according to flow field, made aerofoil structure in internal and external ring adapt to the working conditions with different speed ratio, the energy head optimization of state working in low speed ration working conditions was achieved, which above increasd the turbine output torque; the maximum increment of turbine output torque at low speed rate working conditions reached to 175.36N·m. After optimization, the hydraulic torque converter torque ratio increased 0.344 with 0 speed ratio working condition,the efficiency increased 2.95% in 0.274 speed ratio working condition.

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刘安然,石祥钟,孟燕.基于CFD的液力变矩器导轮优化设计[J].河北工程大学自然版,2016,33(2):103-107

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  • 收稿日期:2016-03-28
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  • 在线发布日期: 2016-06-29
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