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1、附录 A 外文文献原文Magnetorheological damper car.1.Research status of magnetorheological damperMagnetorheological fluid refers to the additional magnetic field,under the action of rheological materials performance changes took place in the liq- uid.Will magnetorheological fluid into the magnetic fluid dampe
2、r,though the control of magnetic field intensitymcan realize continuous magnetorhological damper,adjustable steplessly.Magnetorhelolgical damper usually adopts piston cylinder structure ,the pathway of MPF damper is on the piston or separate bypass,in the path of MRF,according tothe structure of mag
3、netic field canbe divided into a bar and a single piston cylinder structure of dual pole.Magnetorheological damper can produce bigger,and according to the damping force of the external environment different easy adjustment magnetic field intensity,the change of shock absorber system to reduce vibrat
4、ion damping, achieve the goal.In the development of MFR devices and Lord,the Unites States and Delphi corporation in automobile damping application research holds June In 1995,the Lord of the fifth international electorheological fluids,and related technologies of MRF,demonstrates a large trucks for
5、 semi-active suspension seat vibration isolation system p.Lord company recently issued a suitable automobile suspension of magnetorhological damper and Rheonetie series of current controller RD.3002.American Delphi company has developed magnet- orheological fluid using semi-active suspension system
6、MagneRide team move suspension system applied in Seville Cadillac STS high-grade car,the suspension system can be changed according to the driving conditions.University ofVirginia utilization of magnetorhological damper Lord company in Volvo truck Fururecar heavy suspension frame for the cars on exp
7、eriment,made the obvious eggect of vibration reduction.University ofMaryland and development of automotive air compensation structure air compensation structure of magnetorhe- ological damper.The damper adopts flow mode,simple stucture,the damping force change range is 250-1500N.Bok.CHOi Seung Korea
8、n coach suspension system is developed magnetorheological damper,dual cylinder structure,damping cylinder located at work channels in damper was design of PID controller.Laboratory tests show that:the use of magnetorheological damper can greatly improve the traffic safety and comfort.Ford motor comp
9、any BASF,Germany,etc have invested heavily rd magnetorheological fluid and related componets.In the application of magnetoreohological damper is doing a lot of res- earch.Chongqing university of magnetorheological damper Liao Changrong as the design and control methods are studied,Chenjian of Shangh
10、ai jiaotong university for vehicle damping,the design of nanjing university of aeronautics Guo DALEI of magenorthological damper such vehicles in the semi-active control are studied,jingsu university on the adjustable jd.liu semi-active suspension damper control methods are studied,etc,damping desig
11、n and control research has become hot.2.Semi-active suspension control strategy and research status.Most current semi-active suspension system is to shock absorber real-time control of damping and adjust,its essence is measured by real-time sensor of vehicles running environment and body state,the d
12、ata to microprocesser control algorithm is calculated according to the optimal damper,and then control re- gulation,shock absorhers damping force to achieve the ideal damping force, imporve the performance of the suspension,one of the key technologies is to control strategy.In the semi-active suspen
13、sion of 30 years,and veicle engineering half-anf-half active suspension control strategy for a lot of resea- rch,the representative of control method can be summarized as follows:(1)The optimal control strategy.The optimal control is simply stated in the given conditions and evaluation function for
14、the performance of the system ,the index optimal control laws.Its theoretical basis is linear optimal control theory,though the establishment of the state equation is proposed control system,target and weighting coefficients in the application of target set by the control theory of optimal control l
15、aw to achieve optimal control.(2)Predictive control.Predictive control refers to the road ahead through the sensor will suspension devices to information in advance,the parameters adjustment and the actual demand synchronization and reflect the real situation in the road.附录 B 外文文献翻译汽车磁流变减振器1.磁流变减振器的
16、研究状况 磁流变液体是指在外加磁场的作用下，磁流变材料性能发生急剧变化的液体。将 磁流变液体装入磁流变减振器，通过控制磁场强度，可实现磁流变减振器的连续、无 级可调。磁流变减振器通常采用活塞缸结构，磁流变液的通路由位于活塞上的阻尼孔 或单独的旁通构成，在磁流变液的通路上施加磁场，按结构可分为单出杆和双出杆活 塞缸结构。磁流变减振器能够产生较大的阻尼力，而且根据外部的环境不同很容易调节磁场 强度，改变减振器系统的阻尼，达到主动减振的目的。在磁流变液和器件开发方面， 美国福特公司和 Delphi 公司都致力于汽车磁流变减振器的应用研究，福特公司早在 1995 年得第五届国际电流变液、磁流变液及相关技术研讨会上，展示可一种用于大型 载重汽车座椅半主动悬架减振系统。福特公司最近开发了适用于汽车悬架的Rheonetie系列磁流变减振器和电流变控制器RD。3002.美国Delphi公司已经利用磁 流变液开发出半主动悬架系统MagneRide3,被评为1999年世界一百项重大发明之一， 2002年，MagnenRi
