解耦液压悬置建模及时域仿真研究

摘要
图/表
参考文献(17)
相关文章 (9)

全文: PDF (1753 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要

在分析解耦液压悬置的内部结构和考虑橡胶、液压模块非线性特性基础上，建立了能表征解耦液压悬置动态特性的物理模型，计算分析了解耦液压悬置的动态特性，研究了解耦盘及惯性通道在不同振幅条件下对悬置动态特性的影响。试验结果表明：所建物理模型能够较好的表征解耦液压悬置的幅变，频变特性。建立了包含解耦液压悬置的整车13自由度动力学模型，仿真计算了路面激励工况下系统的时域响应，并通过实车进行验证。最后，以抑制车辆过减速带衰减动力总成振动为目标给出了液压悬置的优化方案。结果表明：仿真计算出的发动机侧悬置和变速箱侧悬置振动加速度峰峰值与试验结果分别仅相差4.5%和12%，整车13自由度动力学模型得到了较好的验证；优化后的解耦液压悬置处振动加速度峰峰值衰减到初始状态的40%，优化效果明显。该研究方法为解耦液压悬置的设计、匹配提供参考。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	刘雪莱
	杜浩
	陈俊杰

关键词 ：液压悬置, 解耦膜, 惯性通道, 时域响应

Abstract：

A physics model of decoupling hydraulic engine mount (HEM) with the nonlinear characteristics of rubber and hydraulic component was proposed in this paper.The simulation and test results demonstrate that the proposed model can efficiently describe both frequency-dependent and amplitude-dependent dynamic characteristics of decoupling HEM.The influences of decoupling plate and inertia channel on dynamic characteristics of decoupling HEM under different excitation amplitude were investigated as well.A vehicle dynamic model of 13 DOF with decoupled HEM was established, and the time domain responses of the system under the condition of road excitation were comparatively analyzed and verified by vehicle experiment.Finally, an optimization scheme of the hydraulic mount was proposed to reduce the vibration of powertrain.The results show that the peak-to-peak values of the vibration acceleration of the engine mount and the gearbox mount calculated by simulation differ only 4.5% and 12% from the test results respectively, and the 13-DOF model is well validated.After the optimization, the peak-to-peak value of vibration acceleration at the decoupling HEM attenuates to 40% of the initial state, and the optimization effect is obvious.The study method of this paper provides valuable reference for the design and matching of decoupled HEM.

Key words： hydraulic mount decoupling membrane inertia channel time-domain response

收稿日期: 2020-06-17 出版日期: 2021-10-28

引用本文:

刘雪莱，杜浩，陈俊杰. 解耦液压悬置建模及时域仿真研究[J]. 振动与冲击, 2021, 40(20): 135-142.
LIU Xuelai，DU Hao，CHEN Junjie. Modeling and time-domain response analysis of decoupling hydraulic engine mount. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(20): 135-142.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2021/V40/I20/135

［1］HAFIDI A E, MARTIN B, LOREDO A, et al.Vibration reduction on city buses: determination of optimal position of engine mounts［J］.Mechanical System and Signal Processing, 2010,24(7): 2198-2209.

［2］马天飞, 胡杰宏, 王登峰,等.液压悬置元件幅变特性的研究［J］.汽车工程, 2013,35(7): 604-607.
MA Tianfei, HU Jiehong, WANG Dengfeng, et al.A study on the amplitude-dependence characteristics of hydraulic mount component［J］.Automotive Engineering, 2013,35(7): 604-607.

［3］上官文斌, 魏玉明, 赵旭,等.橡胶阻尼式扭转减振器固有频率计算与测试方法研究［J］.振动工程学报, 2015,28(4): 550-559.
SHANGGUAN Wenbin, WEI Yuming, ZHAO Xu, et al.A study on method of calculation and measurement for natural frequency of torsional vibration rubber dampers［J］.Journal of Vibration Engineering, 2015,28(4): 550-559.

［4］吴杰, 上官文斌.采用黏弹性分数导数模型的橡胶隔振器动态特性的建模及应用［J］.工程力学, 2008,25(1): 161-166.
WU Jie, SHANGGUAN Wenbin.Modeling and application of dynamic characteristics for rubber isolators using viscoelastic fractional derivative model［J］.Engineering Mechanics, 2008,25(1): 161-166.

［5］左曙光, 李凯, 吴旭东,等.一种新型橡胶衬套理论模型及其参数识别［J］.振动、测试与诊断，2014,34(3): 433-438.
ZUO Shuguang, LI Kai, WU Xudong, et al.A novel theoretical model of rubber bushing and parameters identification［J］.Journal of Vibration, Measurement & Diagnosis, 2014,34(3): 433-438.

［6］杨超峰，殷智宏，吕兆平,等.多通道式液压衬套动态特性的测试与计算分析［J］.振动、测试与诊断，2016,36(6): 1057-1064.
YANG Chaofeng, YIN Zhihong, L Zhaoping, et al.Experiment and calculation of the low frequency performance of a hydraulic bushing with multiple tracks［J］.Journal of Vibration, Measurement & Diagnosis, 2016,36(6): 1057-1064.

［7］胡金芳，高东阳，朱冬东.非线性影响下悬置系统模态分析及解耦度计算方法研究［J］.汽车工程，2019,41(5): 556-563.
HU Jinfang, GAO Dongyang, ZHU Dongdong.A research on modal analysis and decoupling-degree calculation methods of mounting system under the influence of nonlinearity［J］.Automotive Engineering, 2019,41(5): 556-563.

［8］周大为，左曙光，王珺，等.固定解耦式液压悬置集总参数建模及模型修正［J］.振动与冲击，2020,39(5): 32-36.
ZHOU Dawei, ZUO Shuguang, WANG Jun, et al.Lumped parametric modeling and model modification for fixed decoupling hydraulic engine mount［J］.Journal of Vibration and Shock, 2020,39(5): 32-36.

［9］周大为，左曙光，吴旭东，等.考虑变刚度解耦膜的液压悬置动特性快速预测模型［J］.华南理工大学学报(自然科学版)，2020,48(6): 9-15.
ZHOU Dawei, ZUO Shuguang, WU Xudong, et al.Fast prediction model for the dynamic characteristics of the hydraulic mount considering the decoupler membrane’ s stiffness variation［J］.Journal of South China University of Technology (Natural Science Edition), 2020,48(6): 9-15.

［10］侯锁军，杨慰.发动机空气弹簧液压悬置动态特性及参数灵敏度研究［J］.振动与冲击，2019,38(21): 178-185.
HOU Suojun, YANG Wei.Dynamic characteristics and parametric sensitivity of engine air spring hydraulic mount［J］.Journal of Vibration and Shock, 2019,38(21): 178-185.

［11］郑玲，刘巧斌，犹佐龙，等.半主动悬置幅变动特性建模与试验分析［J］.机械工程学报, 2017,53(14): 98-105.
ZHENG Ling, LIU Qiaobin, YOU Zuolong, et al.Development of modified lumped parameter model involving amplitude dependence characteristics on semi-active engine mount and experimental verification［J］.Journal of Mechanical Engineering, 2017,53(14): 98-105.

［12］SAKONG H G, HUR G, KIM K J, et al.Modal and forced response analysis of vehicle systems with latent vibration modes due to hydraulic mounts［J］.Journal of Vibration and Acoustics, 2020,142(4): 1-25.

［13］SHANGGUAN W B, LIU X A, L Z P, et al.Design method of automotive powertrain mounting system based on vibration and noise limitation of vehicle level［J］.Mechanical System and Signal Processing, 2016: 677-695.

［14］上官文斌，吴杰.含液阻悬置振动系统的时域响应计算与优化方法［J］.机械工程学报, 2008,44(9): 106-112.
SHANGGUAN Wenbin, WU Jie.Time domain response calculation and optimization methods for vibration systems including hydraulic engine mounts［J］.Journal of Mechanical Engineering, 2008,44(9): 106-112.

［15］TAO C, ZHU H, ZHANG Y.Frequency-dependent hydraulic engine mount with five parameters fraction derivative model in vehicle model［J］.SAE Paper, 2015(1): 1670.

［16］HE S, SINGH R.Improved estimation of linear and nonlinear hydraulic mount models for transient responses［J］.SAE Paper, 2005(1): 2411.

［17］陈俊杰, 殷智宏, 郭孔辉, 等.节流孔式空气阻尼系统建模及参数影响分析［J］.振动与冲击, 2018,37(16): 241-248.
CHEN Junjie, YIN Zhihong, GUO Konghui, et al.Modelling and effect analysis of design parameters for orifice type air damping system［J］.Journal of Vibration and Shock, 2018,37(16): 241-248.