Calculation method of external characteristic for sheet-metal hydraulic torque converter
-
摘要: 对原有试验台架的信号处理和液压系统进行改进, 进行了YJH315钣金型液力变矩器的牵引试验。应用三维流场数值计算方法, 提出了YJH315钣金型液力变矩器外特性的动量矩方程、力矩方程与性能参数计算方法。分别通过MATLAB仿真软件和实测试验得到了不同转速比下的效率、变矩系数和公称力矩, 并将仿真结果与试验结果进行对比分析。分析结果表明: 当转速比在0~0.9时, 试验工况下的最大效率为0.82, 仿真工况下的最大效率为0.79, 效率的最大误差约为2%;试验工况下的最大变矩系数为2.41, 仿真工况下的最大变矩系数为2.29, 变矩系数的最大误差约为3%;试验工况下的最大公称力矩为28.7N·m, 仿真工况下的最大公称力矩为27.3N·m, 公称力矩的最大误差约为3%。3个指标的误差均在可接受范围之内, 说明提出的钣金型液力变矩器外特性计算方法可行。Abstract: The signal processing and hydraulic system of original test bench was improved, and the traction test of YJH315sheet-metal hydraulic torque converter was carried out.Based on the numerical calculation method of three dimensional flow field, the angular momentum equation, torque equation and the calculation method of performance parameter of external characteristic for YJH315sheet-metal hydraulic torque converter were put out.The efficiencies, torque coefficients and nominal torques under different rotating speed ratios were gotten by using MATLAB simulation software and measured test respectively, and simulation result and test result were compared.Analysis result shows that when rotating speed ratio is from 0to 0.9, the maximum efficiency is 0.82 under test condition, the value is 0.82 under simulation condition, and the maximum error of efficiency is about 2%.The maximum torque coefficient is 2.41 under test condition, the value is 2.29 under simulation condition, and the maximum error of torque coefficient is about 3%.The maximum nominal torque is 28.7N·m under test condition, the value is 27.3 N·m under simulation condition, and the maximum error of nominal torque is about 3%.All the errors of three indexes are within the acceptable range, so the proposedcalculation method of external characteristic for sheet-metal hydraulic torque converter is feasible.
-
表 1 几何参数
Table 1. Geometrical parameters
-
[1] 惠记庄, 焦生杰, 邹亚科, 等. 钣金型液力变矩器内部流场的分析[J]. 长安大学学报: 自然科学版, 2009, 29(2): 107-110. doi: 10.3321/j.issn:1671-8879.2009.02.024HUI Ji-zhuang, JIAO Sheng-jie, ZOU Ya-ke, et al. Analysis on flow field of fabrication hydraulic torque converter[J]. Journal of Chang'an University: Natural Science Edition, 2009, 29(2): 107-110. (in Chinese) doi: 10.3321/j.issn:1671-8879.2009.02.024 [2] FLACK R, BRUN K. Fundamental analysis of the secondary flows and jet-wake ina torque conveter pump, Part Ⅱ: flow in curved stationary passage and combined flows[J]. Journal of Fluids Engineering, 2005, 127(1): 75-82. doi: 10.1115/1.1852486 [3] DONG Ying-fei, LAKSHMINARAYANA B. Rotating probe measurements of the pump passage flow field in an automotive torque converter[J]. Journal of Fluids Engineering, 2001, 123(1): 81-91. doi: 10.1115/1.1341202 [4] KRAUS O, FLACK R, HABSIEGER A, et al. Periodic velocity measurements in a wide and lagre radius ratio automotive torque converter at the pump/turbine interface[J]. Journal of Fluids Engineering, 2005, 127(2): 308-316. doi: 10.1115/1.1891150 [5] 王欢, 吴光强, 冀海燕. 超扁平化液力变矩器泵轮流场主流特征分析[J]. 江苏大学学报: 自然科学版, 2009, 30(5): 463-466. https://www.cnki.com.cn/Article/CJFDTOTAL-JSLG200905008.htmWANG Huan, WU Guang-qiang, JI Hai-yan. Main flow features analysis on impeller of super flat automotive torque converter[J]. Journal of Jiangsu University: Natural Science Edition, 2009, 30(5): 463-466. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JSLG200905008.htm [6] 魏良武, 魏杰, 汪建华. 液力变矩器总成点固焊焊接变形有限元分析[J]. 电焊机, 2004, 34(9): 42-44. doi: 10.3969/j.issn.1001-2303.2004.09.014WEI Liang-wu, WEI Jie, WANG Jian-hua. Finite element analysis of welding distortion in tack welding of hydraulic torque convertor assembly[J]. Electric Welding Machine, 2004, 34(9): 42-44. (in Chinese) doi: 10.3969/j.issn.1001-2303.2004.09.014 [7] 王宏卫. 钣金冲焊型双涡轮液力变矩器的研制[J]. 工程机械, 2002, 33(5): 45-47. https://www.cnki.com.cn/Article/CJFDTOTAL-GCJA200205021.htmWANG Hong-wei. Development of fabricated twin turbine hydraulic torque converters[J]. Construction Machinery and Equipment, 2002, 33(5): 45-47. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GCJA200205021.htm [8] 赵罡, 马文星, 周平. 反求工程技术在液力传动中的应用研究[J]. 液压气动与密封, 2006, 30(1): 26-28. https://www.cnki.com.cn/Article/CJFDTOTAL-YYQD200601008.htmZHAO Gang, MA Wen-xing, ZHOU Ping. The application research on converse engineering technique in hydrodynamic transmission[J]. Hydraulics Pneumatics and Seals, 2006, 30(1): 26-28. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YYQD200601008.htm [9] EJIRI E, KUBO M. Performance analysis of automotive torque converter elements[J]. Journal of Fluids Engineering, 1999, 121(2): 266-275. doi: 10.1115/1.2822201 [10] 刘春宝, 马文星, 朱喜林. 液力变矩器三维瞬态流场计算[J]. 机械工程学报, 2010, 46(14): 161-166. https://www.cnki.com.cn/Article/CJFDTOTAL-JXXB201014028.htmLIU Chun-bao, MA Wen-xing, ZHU Xi-lin. 3D-transient calculation of internal flow field for hydrodynamic torque converter[J]. Journal of Mechanical Engineering, 2010, 46(14): 161-166. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JXXB201014028.htm [11] DONG Yu, VAMSHI K, PRADEEP A, et al. Torque converter CFD engineering, Part I: torque ratio and k factor improvement through stator modifications[J]. Society of Automotive Engineer, 2002, 123(1): 83-90. [12] 严鹏, 吴光强. 液力变矩器性能分析[J]. 同济大学学报: 自然科学版, 2004, 32(11): 1504-1507. https://www.cnki.com.cn/Article/CJFDTOTAL-TJDZ200411021.htmYAN Peng, WU Guang-qiang. Performance investigation of torque converter[J]. Journal of Tongji University: Natural Science, 2004, 32(11): 1504-1507. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TJDZ200411021.htm [13] 刘悦, 刘春宝, 何大志, 等. 液力变矩器轴向载荷三维流场的数值计算[J]. 机械设计与研究, 2011, 27(1): 42-44. https://www.cnki.com.cn/Article/CJFDTOTAL-JSYY201101019.htmLIU Yue, LIU Chun-bao, HE Da-zhi, et al. Three-dimensional flow filed numerical calculation of axial load in a torque converter[J]. Machine Design and Research, 2011, 27(1): 42-44. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JSYY201101019.htm [14] 袁生杰, 刘艳芳, 石传龙, 等. 液力变矩器内部流场的三维数值模拟[J]. 工程机械, 2011, 42(7): 35-42. https://www.cnki.com.cn/Article/CJFDTOTAL-GCJA201107011.htmYUAN Sheng-jie, LIU Yan-fang, SHI Chuan-long, et al. 3-D numerical simulation of inner flow field for hydraulic torque convertor[J]. Construction Machinery and Equipment, 2011, 42(7): 35-42. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GCJA201107011.htm [15] 惠记庄, 邹亚科. 液力变矩器性能实验台的研究[J]. 起重运输机械, 2007(12): 53-55. https://www.cnki.com.cn/Article/CJFDTOTAL-QZJJ200712025.htmHUI Ji-zhuang, ZOU Ya-ke. Research of test bench for hydraulic torque converter performance[J]. Hoisting and Conveying Machinery, 2007(12): 53-55. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-QZJJ200712025.htm [16] 鲁统利, 葛安林, 张宏坤, 等. 液力变矩器性能试验台油温自动控制系统研制[J]. 农业机械学报, 2000, 31(4): 95-102. https://www.cnki.com.cn/Article/CJFDTOTAL-NYJX200004026.htmLU Tong-li, GE An-lin, ZHANG Hong-kun, et al. Research on a temperature auto control system of motorcar torque converter test-bed[J]. Transactions of the Chinese Society for Agricultural Machinery, 2000, 31(4): 95-102. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-NYJX200004026.htm [17] GB/T 7680―2005, 液力变矩器性能试验方法[S].GB/T 7680―2005, torque converters-methods of performance tests[S]. (in Chinese) [18] 刘振军, 秦大同, 胡建军, 等. 轿车用液力变矩器性能试验分析[J]. 重庆大学学报: 自然科学版, 2002, 25(2): 103-105, 119. https://www.cnki.com.cn/Article/CJFDTOTAL-FIVE200202026.htmLIU Zhen-jun, QIN Da-tong, HU Jian-jun, et al. Testing study on hydraulic torque converter for car[J]. Journal of Chongqing University: Natural Science Edition, 2002, 25(2): 103-105, 119. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-FIVE200202026.htm [19] 刘悦, 马文星, 刘春宝, 等. 综合式液力变矩器内特性的计算与分析[J]. 吉林大学学报: 工学版, 2008, 38(1): 70-74. https://www.cnki.com.cn/Article/CJFDTOTAL-JLGY200801015.htmLIU Yue, MA Wen-xing, LIU Chun-bao, et al. Calculation and analysis of internal characteristics of torque converter-coupling[J]. Journal of Jilin University: Engineering and Technology Edition, 2008, 38(1): 70-74. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JLGY200801015.htm [20] 刘宗其, 李志远, 夏光. 基于反求技术的液力变矩器涡轮叶片设计[J]. 交通运输工程学报, 2014, 14(3): 65-72. http://transport.chd.edu.cn/article/id/201403009LIU Zong-qi, LI Zhi-yuan, XIA Guang. Design of turbine blades of torque converter based on reverse technology[J]. Journal of Traffic and Transportation Engineering, 2014, 14(3): 65-72. (in Chinese) http://transport.chd.edu.cn/article/id/201403009 [21] 徐信芯, 焦生杰, 顾海荣, 等. 旋挖钻机钻杆耦合振动与减振研究[J]. 中国公路学报, 2014, 27(9): 119-126. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL201409018.htmXU Xin-xin, JIAO Sheng-jie, GU Hai-rong, et al. Research on coupled vibration and reducing vibration of drillstring for rotary drilling rig[J]. China Journal of Highway and Transport, 2014, 27(9): 119-126. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL201409018.htm -
下载:
点击查看大图
图(22) / 表(1)
计量
- 文章访问数: 644
- HTML全文浏览量: 146
- PDF下载量: 715
- 被引次数: 0
