-
摘要: 为了使设计减振器对车辆具有最佳减振效果, 利用悬架最佳阻尼比, 对减振器最佳阻尼系数进行了研究, 建立了减振器最佳速度特性数学模型, 提出了减振器阀系参数设计优化方法, 对设计减振器进行了特性试验和整车振动试验, 并与原车载减振器性能进行了对比。计算结果表明: 减振器特性试验值与最佳阻尼匹配要求值的最大偏差为9%, 而且, 在低频范围内, 设计减振器的整车振动传递函数幅值明显低于原车载减振器的幅值, 有效遏制了簧下质量在13Hz附近的共振, 因此, 减振器速度特性模型和阀系参数优化设计方法是正确的。Abstract: In order to design optimum shock absorber for vehicle, its optimal damping coefficients were studied according to the optimization damping ratio of suspension, a mathematic model of its velocity characteristic was built, an optimal design method of its valves parameters was put forward, its performance and whole vehicle vibration tests were carried out, and its performances were compared with that of original shock absorber. Computation result shows that the maximum warp between testing values and optimal requiring values is 9%, the transfer function values of whole vehicle vibration with designed shock absorbers are lower than that with original shock absorbers in the scope of low frequency, the resonance hereabout 13 Hz is depressed, so the model and method are feasible.
-
表 1 速度特性值
Table 1. Characteristic values of speeds
速度V/(m·s-1) -1.0 -0.1 0 0.3 1.0 阻尼力F/N -656.3 -209.5 0 629.8 1 543.7 
下载: 导出CSV
表 2 参数优化设计值
Table 2. Optimum design values of parameters
设计参数 A/mm2 h/mm fk0/mm δmax/mm 复原阀 0.90 0.277 6 0.034 0.06 压缩阀 1.33 0.164 0 0.150 0.21
下载: 导出CSV
表 3 速度特性试验值
Table 3. Testing values of speed characteristic
速度V/(m·s-1) -1.0 -0.1 0 0.3 1.0 阻尼力F/N -690 -190 0 608 1 539
下载: 导出CSV
-
[1] 余强, 马建. 半主动悬架系统对汽车侧翻稳定性的改善[J]. 交通运输工程学报, 2005, 5(1): 53-56. doi: 10.3321/j.issn:1671-1637.2005.01.013Yu Qiang, Ma Jian. Stabilityi mprovement of vehicle s antio-verturn withsemi-active suspension system[J]. Journal ofTraffic and Transportation Engineering, 2005, 5(1): 53-56. (in Chinese) doi: 10.3321/j.issn:1671-1637.2005.01.013 [2] 陈涛, 魏朗. 人-车-路互动模式虚拟仿真系统[J]. 长安大学学报: 自然科学版, 2007, 27(1): 67-71. doi: 10.3321/j.issn:1671-8879.2007.01.016Chen Tao, Wei Lang. Driver-vehicle-road virtual simulation withinteraction mode[J]. Journal of Chang an University: Natural Science Edition, 2007, 27(1): 67-71. (in Chinese) doi: 10.3321/j.issn:1671-8879.2007.01.016 [3] 赵成, 胡增荣, 陈大跃. 半主动悬架的滑模变结构控制[J]. 中国公路学报, 2007, 20(3): 109-114. doi: 10.3321/j.issn:1001-7372.2007.03.020Zhao Cheng, Hu Zeng-rong, Chen Da-yue. Sliding mode varying structure control for semi-active suspension[J]. China Journal of Highway and Transport, 2007, 20(3): 109-114. (in Chinese) doi: 10.3321/j.issn:1001-7372.2007.03.020 [4] 吕彭民, 和丽梅, 尤晋闽. 基于舒适性和轮胎动载的车辆悬架参数优化[J]. 中国公路学报, 2007, 20(1): 112-117. doi: 10.3321/j.issn:1001-7372.2007.01.021Lu Peng-min, He Li-mei, You Jin-min. Optimization of vehicle suspension parameters based on comfort and tyre dynamic load[J]. China Journal of Highway and Transport, 2007, 20(1): 112-117. (in Chinese) doi: 10.3321/j.issn:1001-7372.2007.01.021 [5] 吕振华, 李世民, 刘目珍. 筒式液阻减振器工作特性的实验研究[J]. 汽车工程, 2005, 27(2): 203-208. doi: 10.3321/j.issn:1000-680X.2005.02.019Lu Zhen-hua, Li Shi-min, Liu Mu-zhen. An experi mental study on the characteristics of telescopic hydraulic shock absorber[J]. Automotive Engineering, 2005, 27(2): 203-208. (in Chinese) doi: 10.3321/j.issn:1000-680X.2005.02.019 [6] 周长城, 顾亮. 筒式减振器叠加节流阀片开度与特性试验[J]. 机械工程学报, 2007, 43(6): 210-215. doi: 10.3321/j.issn:0577-6686.2007.06.038Zhou Chang-cheng, Gu Liang. Superposition throttle-slices opening size and characteristic test of telescope damper[J]. Chinese Journal of Mechanical Engineering, 2007, 43(6): 210-215. (in Chinese) doi: 10.3321/j.issn:0577-6686.2007.06.038 [7] 陈龙, 江浩斌, 周孔亢, 等. 半主动悬架系统设计及控制[J]. 机械工程学报, 2005, 41(5): 137-141. https://www.cnki.com.cn/Article/CJFDTOTAL-JXXB200505028.htmChen Long, Jiang Hao-bin, Zhou Kong-kang, et al. Control and design for semi-active suspension[J]. Chinese Journal of Mechanical Engineering, 2005, 41(5): 137-141. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JXXB200505028.htm [8] Zhao He-ping, Huang Hong-cheng, Xi Gang, et al. Dynamic characteristics of vehicle suspension with nonlinear springs[J]. Journal of Mechanical Strength, 2001, 23(2): 165-167. [9] 周长城. 汽车减振器阀系参数解析计算与特性综合仿真[D]. 北京: 北京理工大学, 2006. [10] 周长城, 顾亮, 王丽. 节流阀片弯曲变形与变形系数[J]. 北京理工大学学报, 2006, 26(7): 581-584. https://www.cnki.com.cn/Article/CJFDTOTAL-BJLG200607004.htmZhou Chang-cheng, Gu Liang, Wang Li. Bending deformation and coefficient of throttle-slice[J]. Transactions of Beijing Institute of Technology, 2006, 26(7): 581-584. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-BJLG200607004.htm -
点击查看大图
图(5) / 表(3)
计量
- 文章访问数: 447
- HTML全文浏览量: 103
- PDF下载量: 733
- 被引次数: 0
