摘要
高功率密度液力变矩器体积小、传递功率大,是重型车辆,特别是军用车辆液力机械传动的核心部件。基于现代计算机技术、CFD技术、CAE技术和CAD技术,建立了车用液力变矩器与发动机动态匹配方法及评价体系、集成一维束理论与三维流场分析的特性预测和叶栅系统优化方法及模型、叶轮流固耦合强度分析方法及LDA叶轮内部流场测试方法,研制了系列高功率密度液力变矩器,能容高达7.8×10-6·min2·r-2·m-1,最高效率88.6%,循环圆有效直径420 mm时可传递功率1103 k W,宽径比最小0.21。
High power density torque converter is small and able to transmit high power, so it＇s widely used in hydro-mechanical transmission of military and heavy vehicles. Based on modem computer technology, computation- al fluid dynamics （CFD） , computer aided engineering （CAE） and design （CAD） , the modem torque converter design methodology is established. The modem design theory consists of dynamic math of torque converter and en- gine, characteristic simulation model and cascade optimization model based on beam line theory and three-dimen- sional flow field simulation, structure analysis based on fluid-structure interface model and speed measurement with LDA devices. Utilizing this methodology, we develop a series of high power density torque converter , whose max power density reaches 7.8 ·10 -6 . min2 ·r-2 · m-1, max peak efficiency reaches 88.6% , minimum flatness ratio reaches 0.21, and the 420 mm torque converter could transmit as much as 1103 kW.
出处
《液压与气动》
北大核心
2015年第4期1-8,共8页
Chinese Hydraulics & Pneumatics
基金
国家基础科研项目(VTDP-2104)
