基于CFD的汽车液力变矩器输出功率测试系统设计
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摘要
针对传统汽车液力变矩器输出功率测试系统受到误差影响,导致测试效果较差,提出基于CFD的汽车液力变矩器输出功率测试系统设计。根据系统硬件框图,采用STC15F2K60S2型号单片机作为内部集成主要芯片,为系统测试提供服务。采用LM2596型号的变压芯片设计输出功率变压模块,依据该模块设定技术指标。使用MAX4070型号放大器设计接口电路,改善系统测试出现的误差问题。根据软件流程对液力变矩器内部各个叶轮进行划分,采用CFD计算方法对每一次迭代过程中的独立方程进行求解,由此完成系统软件部分设计。由实验结果可知,该系统测试效果最高可达到85%,促进了汽车液力变矩器的发展。
Since the traditional output power testing system of vehicle hydraulic torque converter has poor test effect due to the influence of errors, the design of CFD-based output power testing system of vehicle torque converter is proposed. According to the hardware block diagram of the system,the microcontroller STC15F2K60S2 is used as the main internal integration chip to provide service for system testing. The voltage converter chip LM2596 is used to design the voltage converter module of output power,and the technical indexes are set according to the module. The amplifier MAX4070 is adopted to design the interface circuit to improve the error of the system test. According to the software flow,each impeller inside the hydraulic torque converter is divided,and the CFD calculation method is used to solve the independent equation of each iteration process,and the system software is designed. The experimental results show that the test results of the system can reach up to 85%,and the system can promote the development of vehicle hydraulic torque converter.
Since the traditional output power testing system of vehicle hydraulic torque converter has poor test effect due to the influence of errors, the design of CFD-based output power testing system of vehicle torque converter is proposed. According to the hardware block diagram of the system,the microcontroller STC15F2K60S2 is used as the main internal integration chip to provide service for system testing. The voltage converter chip LM2596 is used to design the voltage converter module of output power,and the technical indexes are set according to the module. The amplifier MAX4070 is adopted to design the interface circuit to improve the error of the system test. According to the software flow,each impeller inside the hydraulic torque converter is divided,and the CFD calculation method is used to solve the independent equation of each iteration process,and the system software is designed. The experimental results show that the test results of the system can reach up to 85%,and the system can promote the development of vehicle hydraulic torque converter.
引文
[1]单丰武.基于CFD的汽车液力变矩器泵体内部流场研究[J].机械设计与制造工程,2017,46(10):93-96.SHAN Fengwu. Research on the flow field of pump body based on CFD[J]. Machine design and manufacturing engineering,2017,46(10):93-96.
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[7]洪碧光,王鹏晖,张秀凤,等.基于CFD的无压载水船型浅水中岸壁效应数值模拟[J].船海工程,2017,46(2):6-11.HONG Biguang,WANG Penghui,ZHANG Xiufeng,et al. Numerical simulation of wall effect for ballast-free ship in shallow water based on CFD[J]. Ship&ocean engineering,2017,46(2):6-11.
[8]柏德鸿,宗原,赵玲.基于CFD的强化裂解炉管设计[J].化工学报,2017,68(2):660-669.BAI Dehong,ZONG Yuan,ZHAO Ling. Computational fluid dynamics assisted design of cracking coils[J]. CIESC journal,2017,68(2):660-669.
[9]彭正虎,赵丽梅,吴怀超,等.基于遗传算法的装载机发动机与液力变矩器匹配优化分析[J].机床与液压,2017,45(11):126-130.PENG Zhenghu,ZHAO Limei,WU Huaichao,et al. Based on genetic algorithm loader engine and hydraulic torque converter matching optimization analysis[J]. Machine tool&hydraulics,2017,45(11):126-130.
[10]苏华,余志雄.基于CFD的沟槽-织构复合型滑动轴承性能分析[J].润滑与密封,2017,42(7):19-25.SU Hua,YU Zhixiong. Computational fluid dynamics analysis of a journal bearing with groove-texture composite structure[J]. Lubrication engineering,2017,42(7):19-25.
[11]张海宁,白福.液力变矩器外形参数测量方法研究[J].电子设计工程,2017,25(6):127-131.ZHANG Haining,BAI Fu. Research on measuring method of hydraulic torque converter shape parameters[J]. Electronic design engineering,2017,25(6):127-131.
[12] WANG Yiping,WANG Tao,LI Shuai. Aerodynamic drag reduction of vehicle based on free form deformation[J]. Journal of mechanical engineering,2017,53(9):135-143.
[2]石祥钟,孟燕,赵文鲁,等.基于CFD的双涡轮液力变矩器的改进研究[J].液压与气动,2016(5):37-41.SHI Xiangzhong,MENG Yan,ZHAO Wenlu,et al. Improvement of a dual-turbine hydrodynamic torque converter based on CFD[J]. Chinese hydraulics&pneumatics,2016(5):37-41.
[3]惠记庄,郑恒玉,杨永奎,等.基于三维流场数值解的钣金型液力变矩器轴向力计算[J].中国公路学报,2016,29(4):145-152.HUI Jizhuang,ZHENG Hengyu,YANG Yongkui,et al. Axial force calculation of sheet-metal-type hydraulic torque converter based on numerical solution of 3D flow field[J]. China journal of highway and transport,2016,29(4):145-152.
[4]王玉岭,闫清东,李晋,等.基于CFD的液力变矩器内部流场分布特征研究[J].液压与气动,2015(7):36-40.WANG Yuling,YAN Qingdong,LI Jin,et al. Distribution of the torque converter internal flow field based on CFD[J]. Chinese hydraulics&pneumatics,2015(7):36-40.
[5]刘树成,闫清东,邢庆坤.车用大功率柴油机与液力变矩器动态匹配影响因素分析[J].兵工学报,2016,37(3):385-393.LIU Shucheng,YAN Qingdong,XING Qingkun. Analysis of dynamic matching factors of high-power diesel engine and hydrodynamic torque converter[J]. Acta armamentarii,2016,37(3):385-393.
[6]庞茂,吴瑞明,杨礼康.电封闭式液力变矩器试验机开发及性能试验分析[J].组合机床与自动化加工技术,2016,25(1):71-73.PANG Mao,WU Ruiming,YANG Likang. Development and test of electrical-closed test bed for hydraulic torque convert[J]. Modular machine tool&automatic manufacturing technique,2016,25(1):71-73.
[7]洪碧光,王鹏晖,张秀凤,等.基于CFD的无压载水船型浅水中岸壁效应数值模拟[J].船海工程,2017,46(2):6-11.HONG Biguang,WANG Penghui,ZHANG Xiufeng,et al. Numerical simulation of wall effect for ballast-free ship in shallow water based on CFD[J]. Ship&ocean engineering,2017,46(2):6-11.
[8]柏德鸿,宗原,赵玲.基于CFD的强化裂解炉管设计[J].化工学报,2017,68(2):660-669.BAI Dehong,ZONG Yuan,ZHAO Ling. Computational fluid dynamics assisted design of cracking coils[J]. CIESC journal,2017,68(2):660-669.
[9]彭正虎,赵丽梅,吴怀超,等.基于遗传算法的装载机发动机与液力变矩器匹配优化分析[J].机床与液压,2017,45(11):126-130.PENG Zhenghu,ZHAO Limei,WU Huaichao,et al. Based on genetic algorithm loader engine and hydraulic torque converter matching optimization analysis[J]. Machine tool&hydraulics,2017,45(11):126-130.
[10]苏华,余志雄.基于CFD的沟槽-织构复合型滑动轴承性能分析[J].润滑与密封,2017,42(7):19-25.SU Hua,YU Zhixiong. Computational fluid dynamics analysis of a journal bearing with groove-texture composite structure[J]. Lubrication engineering,2017,42(7):19-25.
[11]张海宁,白福.液力变矩器外形参数测量方法研究[J].电子设计工程,2017,25(6):127-131.ZHANG Haining,BAI Fu. Research on measuring method of hydraulic torque converter shape parameters[J]. Electronic design engineering,2017,25(6):127-131.
[12] WANG Yiping,WANG Tao,LI Shuai. Aerodynamic drag reduction of vehicle based on free form deformation[J]. Journal of mechanical engineering,2017,53(9):135-143.