Conical ring gap flow and throttle-slice dynamic opening of automobile shock absorber
MA Shibang1, GAO Yuan1,2, HUANG Rongjie1, LI Chao1
1.College of Mechanical and Electrical Engineering, Nanyang Normal College, Nanyang 473061, China;
2.School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China
Abstract：Here, to establish a more comprehensive mathematical model for damping characteristics of automobile shock absorber, the differential equation of fluid motion was used to derive the relation between pressure drop and flow rate during fluid passing through gap of conical ring.Considering fluid impact force and spring force exerted on throttle-slice, the calculation formula of throttle-slice opening speed under the action of spring was derived.The flow rate distribution in gap between through-hole and conical ring and its influence on damping force were calculated after throttle-slice was opened.Considering dynamic interaction relation between throttle-slice opening and fluid force, the solving equation of throttle-slice dynamic opening was established.The numerical simulation was performed for the model with the software MATLAB.It was shown that the calculation results agree better with test data to verify the correctness of the proposed theory.
马世榜，高原，黄荣杰，李超. 汽车减振器锥形圆环缝隙流与阀片动态开度研究[J]. 振动与冲击, 2021, 40(17): 152-160.
MA Shibang, GAO Yuan, HUANG Rongjie, LI Chao. Conical ring gap flow and throttle-slice dynamic opening of automobile shock absorber. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(17): 152-160.
［1］李朝峰,于厚鑫,李超,等.弹支阀片双筒液压减振器的阻尼特性［J］.东北大学学报(自然科学版), 2018, 39(10):1480-1484.
LI Chaofeng，YU Houxin， LI Chao，et al.Damping characteristics of twin-tube hydraulic shock absorber with elastic supporting slices［J］.Journal of Northeastern University(Natural Science), 2018,39(10):1480-1484.
［2］CAFFARO F，CREMASCO M M，PRETI C，et al.Ergonomic analysis of the effects of a telehandler's active suspended cab on whole body vibration level and operator comfort［J］.International Journal of Industrial Ergonomics, 2016,53: 19-26.
［3］朱茂桃,唐伟，王道勇，等.半主动液压减振器动态特性建模与试验研究［J］.振动与冲击，2018,37(7):139-145.
ZHU Maotao，TANG Wei，WANG Daoyong，et al.Modeling and tests for dynamic characteristics of a semi-active hydraulic shock absorber［J］.Journal of Vibration and Shock，2018,37(7):139-145.
［4］PANTHI S K，RAMAKRISHNAN N.Semi analytical modeling of springback in arc bending and effect of forming load［J］.Transactions of Nonferrous Metals Society of China，2011,21(10):2276-2284.
［5］孙晓帮,田雪,包磊，等.基于能量法的充气减振器开阀与畸变特性试验研究［J］.液压与气动, 2017(9): 33-37.
SUN Xiaobang, TIAN Xue, BAO Lei, et al.Open valve and distortion characteristics of inflatable damper based on energy method ［J］.Chinese Hydraulics & Pneumatics, 2017(9): 33-37.
［6］张新星,张晋,王存塘,等.基于能量法的减振器阀片变形研究［J］.机床与液压, 2019,47(3): 162-166.
ZHANG Xinxing, ZHANG Jin, WANG Cuntang, et al.Study on deformation of shock absorber valve based on energy method ［J］.Machine Tool & Hydraulics, 2019, 47(3): 162-166.
［7］周长城, 张绍阁,顾亮.环形弹性阀片弯曲变形曲面方程及其解［J］.山东理工大学学报(自然科学版), 2006(4): 8-11.
ZHOU Changcheng, ZHANG Shaoge, GU Liang.A study on bend deformation equation of ring elastic slice and solution ［J］.Journal of Shandong University of Technology(Science and Technology), 2006(4): 8-11.
［8］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(7): 581-584.
ZHOU Changcheng, GU Liang, WANG li.Bending deformation and coefficient of throttle-slice ［J］.Transactions of Beijing Institute of Technology, 2006(7): 581-584.
［9］贺李平,顾亮,辛国国,等.减振器环形阀片大挠曲变形的高精度解析式［J］.北京理工大学学报, 2009,29(6): 510-514.
HE Liping, GU Liang, XIN Guoguo, et al.High-precision analytical formulas of large deflection problem for annular throttle-slice in shock absorber ［J］.Transactions of Beijing Institute of Technology, 2009, 29(6): 510-514.
［10］段福斌,潘骏,陈文华,等.双筒式液压减振器阻尼力建模与灵敏度分析［J］.工程设计学报, 2017,24(2): 149-155.
DUAN Fubin, PAN Jun, CHEN Wenhua, et al.Damping force modeling and sensitivity analysis of double-tube hydraulic damper［J］.Chinese Journal of Engineering Design, 2017, 24(2): 149-155.
［11］马天飞, 崔泽飞,张敏敏.基于AMESim双筒叠加阀片式充气减振器建模与仿真［J］.机械工程学报, 2013,49(12): 123-130.
MA Tianfei, CUI Zefei, ZHANG Minmin.Modeling and simulating of the gas-precharged dual-sleeve shock absorber with multiple valve plates using AMESim ［J］.Journal of Mechanic Engineering, 2013, 49(12): 123-130.
［12］马天飞, 崔泽飞,佟静.基于Isight和AMESim的液压减振器关键参数集成优化［J］.汽车工程, 2015,37(1): 97-101.
MA Tianfei, CUI Zefei, TONG Jing.Integrated optimization of the key parameters of hydraulic shock absorber based on Isight and AMESim software ［J］.Automotive Engineering, 2015, 37(1): 97-101.
［13］周长城, 赵力航,顾亮.减振器叠加节流阀片的研究［J］.北京理工大学学报, 2006(8): 681-684.
ZHOU Changcheng, ZHAO Lihang, GU Liang.Study on superposition throttle-slices on damper ［J］.Transactions of Beijing Institute of Technology, 2006(8): 681-684.
