抗俯仰液壓互聯(lián)懸架三軸重型貨車動態(tài)特性

抗俯仰液壓互聯(lián)懸架三軸重型貨車動態(tài)特性丁飛1,2張農(nóng)2韓旭11.湖南大學汽車車身先進設計制造國家重點實驗室，湖南，長沙410082； 2.悉尼科技大學電機、機械與機械電子學院，悉尼，澳大利亞2007摘要：完成了安裝抗俯仰液壓互聯(lián)懸架(HIS)三軸貨車動力學方程的推導。采用自由圖法和阻抗傳遞矩陣方法推導建立耦合機械系統(tǒng)和液壓系統(tǒng)的動力學方程，該特征方程以機械系統(tǒng)的位移和速度以及機械與液壓耦合邊界處的壓力作為狀態(tài)矢量。對比分析HIS對車體恢復力和力矩及車體振動固有頻率的影響。結(jié)果表明，液壓互聯(lián)懸架HIS系統(tǒng)能夠為車體提供較大的抗俯仰力矩。自由振動分析表明，HIS改變了車體垂向和俯仰振蕩中心位置，且增加了車體俯仰模態(tài)對應的固有頻率，同時車體垂向跳動模態(tài)對應的固有頻率幾乎保持不變。液壓互聯(lián)懸架(HIS)；舒適性；抗俯仰懸架；三軸貨車U463.33+5A10.3969/j.issn.2095-1469.2011.04.022Dynamic Characteristics of a Tri-axle Heavy Truck Fitted Hydraulically Anti-pith Interconnected Suspension Ding Fei 1,2Zhang Nong2Han Xu11. State key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, Hunan 410082, China； 2. School of Electrical, Mechanical and Mechatronic Systems, University of Technology, Sydney, Australia 2007)Abstract: This paper briefly presents the derivation of the equations of motion of a tri-axle truck fitted with pitch resistant hydraulically interconnected suspension (HIS) system. Based on free body diagram and fluid transfer impedance matrix method, the characteristic equations of this mechanically and hydraulically coupled system are derived with a state vector including the displacements and velocities of mechanical system and the pressure at the mechanical-hydraulic boundary section. The comparison analysis of the sprung mass responses to road inputs is carried out between the trucks with conventional suspension and hydraulically interconnected suspension system. The obtained results indicate that the HIS system can provide great pitch restoring moment of sprung mass. And the free decay vibration analysis reveals that the HIS system changes the bounce and pitch oscillation center of sprung mass, and the obtained natural frequencies of bounce and pitch modes of sprung mass illustrate that the pitch stiffness is increased while the bounce stiffness is slightly softened.HIS； ride comfort； pitch resistant specific suspension； tri-axle truck 2011-9-11Foundation item: Key Project of Chinese National Programs for Fundamental Research and Development (2010CB832705)； National Science Fund of China for Distinguished Young Scholars (10725208)system isthe hydraulicderivationimpedancesprung mass,systems withperformance.1 GILLESPIE T D. Heavy Truck RideC. SAE Paper 850001.2 SMITH M C, WALKER G W. Interconnected Vehicle Suspension J. Proc. IMechE. Part D: J. Automobile Engineering, 2005, 219: 259-307.3 LIU P J, RAKHEJA S, AHMED A K W. An Analytical Study of an interconnected Vehicle SuspensionC/ ASME International Mechanical Engineering Congress and Exposition. San Francisco: s.n., 1995.4 WILDE J R, HEYDINGER G J, WGUENTHER D A. ADAMS Simulation of Ride and Handling Performance of the Kinetic Suspension System C. SAE Paper 2006- 01-1972.5 ZHANG N, SMITH W A, JEYAKUMARAN J. Hydraulically Interconnected Vehicle Suspension: Background and ModellingJ. Vehicle System Dynamics, 2010, 48 (1) : 17-40.6 CAO D, RAKHEJA S, SU C Y. Pitch Attitude Control and Braking Performance Analysis of Heavy Vehicle with Interconnected Suspensions C/SAE Paper 2007-01- 1347.7 Ding Fei, Zhang Nong, Han Xu. Dynamic Characteristic Analysis of Heavy Duty Truck Using Simplified Tandem Suspension ModelC/ The First IFToMM Asian Conference on Mechanism and Machine Science. Taipei, Taiwan: Department of Mechanical Engineering,National Taiwan University, 2010.8 WYLIE E B, STREETER V L. Fluid Transients M. New York: McGraw-Hill International Book Co., 1978.9 MILLIKEN W F, MILLIKEN D L. Chassis Design: Principles and Analysis M.UK: Professional Engineering Publishing, 2002.Corresponding Author: Prof Zhang Nong received his BE degree from Northeastern University in 1982, ME from Shanghai Jiao Tong University, China in 1984, and PhD from the University of Tokyo, Japan in 1989. He worked at several prestigious universities in China,Japan, USA and Australia respectively before joining the Faculty of Engineering and Information Technology of University of Technology, Sydney in 1995. Since 2009, he has been the Professor of Mechanical Engineering, at School of Electrical,Mechanical and Mechatronic Systems. For more than 20 years,Prof Zhang has been involved in research in areas of dynamcs and control of automotive systems including powertrains with various types of transmissions, hybrid propulsion systems,vehicle dynamics, passive and active suspensions； and mechanical vibration including experimental modal analysis, rotor dynamics,cold rolling mill chatter and machine condition monitoring.E-mail: .au Responsible Author:Ding Fei(1983-),Mister, Chongqing, China. PhD student, his current research interests include mechanism research and application of hydraulically interconnected suspension system, chassis dynamics analysis of heavy truck, passive and active safety research of heavy truck.E-mail:adf_hnu 163.com.抗俯仰液壓互聯(lián)懸架三軸重型貨車動態(tài)特性作者： 丁飛， 張農(nóng)， 韓旭， Ding Fei， Zhang Nong， Han Xu作者單位： 丁飛,Ding Fei(湖南大學汽車車身先進設計制造國家重點實驗室 湖南 長沙410082；悉尼科技大學電機、機械與機械電子學院 悉尼 澳大利亞2007)， 張農(nóng),Zhang Nong(悉尼科技大學電機、機械與機械電子學院悉尼 澳大利亞2007)， 韓旭,Han Xu(湖南大學汽車車身先進設計制造國家重點實驗室 湖南 長沙410082)刊名： 汽車工程學報英文刊名： CHINESE JOURNAL OF AUTOMOTIVE ENGINEERING年，卷(期)： 2011,01(4) 參考文獻(9條)1.GILLESPIE T D Heavy Truck RideSAE Paper 8500012.SMITH M C.WALKER G W Interconnected Vehicle Suspension 20053.LIU P J.RAKHEJA S.AHMED A K W An Analytical Study of an interconnected Vehicle Suspension 19954.WILDE J R.HEYDINGER G J.WGUENTHER D A ADAMS Simulation of Ride and Handling Performance of the Kinetic Suspen