英语翻译AbstractIn this paper,a semi-active control of vehicle s

英语翻译
Abstract
In this paper,a semi-active control of vehicle suspension system with magnetorheological
(MR) damper is presented.At first a MR damper working in flow mode is designed.Performance
testing is done for this damper with INSTRON machine.Then a mathematical
model,Bouc–Wen model,is adopted to characterize the performance of the MR damper.With
optimization method in MATLAB\1 and experimental results of MR damper,the coefficients
of the model are determined.Finally,a scaled quarter car model is set up including the model
of the MR damper and a semi-active control strategy is adopted to control the vibration of
suspension system.Simulation results show that with the semi-active control the vibration of
suspension system is well controlled.\2 2002 Elsevier Science Ltd.All rights reserved.
1.Introduction
Vibration control of vehicle suspension systems has been a very active subject of
research,since it can provide a very good performance for drivers and passengers.
For a long time,efforts were done to make the suspension system works in an optimal
condition by optimizing the parameters of the suspension system,but for intrinsic
limitation of passive suspension system the improvement is effective only in a
certain frequency range.Compared with passive suspensions,active suspensions can
improve the performance of the suspension system over a wide range of frequency.
Semi-active suspensions were proposed in the early 1970s [1],which can be nearly as
effective as fully active suspensions in improving ride quality.When the controlsystem fails,the semi-active suspension can still work in passive condition.Compared
with active and passive suspension systems,the semi-active suspension system
combines the advantages of both active and passive suspensions; i.e.it provides good
performance compared with passive suspensions and is economical,safe and does
not require either higher-power actuators or a large power supply [2].
In early semi-active suspension,the regulating of the damping force can be
achieved by adjusting the orifice area in the oil-filled damper,thus changing the
resistance to fluid flow,but the changing of speed is much slow for using of mechanical
motion.More recently,the possible applications of electrorheological (ER)
and magnetorheological (MR) fluids in the controllable dampers were investigated
by many researchers [3,4].ER and MR fluids are two kinds of smart materials,which
made by mixing fine particles into a liquid with low viscosity.The particles will be
formed into chain-like fibrous structures in the presence of a high electric field or a
magnetic field.When the electric field strength or the magnetic field strength reaches
a certain value,the suspension will be solidified and has high yield stress; conversely,
the suspension can be liquiefied once more by removal of the electric field or the
magnetic field.
下面的答案狗屁不通```直接拉翻译软件的吧~

摘要
在本文中,半主动控制车辆悬架系统磁
（先生）阻尼器.在首先致辞阻尼器的工作流程模式设计.绩效
测试是为这个阻尼器在instron机.然后数学
模型,bouc - wen模型,是采用定性的表现,该磁流变阻尼器.与
优化法在matlab与实验结果的磁流变阻尼器,该系数
该模型的决心.最后,具雏形季度汽车模型,是建立包括示范
该磁流变阻尼器和半主动控制策略是通过控制振动
悬架系统.模拟结果表明,随着半主动振动控制
悬架系统是很好的控制.2002年思唯尔科技有限公司保留所有权利.
1 .导言
振动控制车辆悬架系统一直是非常活跃的主题
研究,因为它可以提供一个非常良好的业绩,为司机和乘客.
在相当长的时间,努力做到使悬架系统的工程优化
条件下,通过优化参数的悬架系统,但对于内在
限制的被动悬架系统的改进是有效的,只有在
在一定的频率范围内.相对于被动式悬浮物,主动悬架能
性能上的提高,该悬架系统在很宽的频率范围.
半主动悬架,提出了在70年代初期,[ 1 ] ,可作为近
有效为完全主动悬架在改善行驶品质.当控制系统失败时,半主动悬架仍然可以工作在被动状态.比较
与主动和被动悬架系统,半主动悬架系统
相结合的优势,主动与被动悬挂;也就是说,它提供了良好
表现比较被动的悬浮物,是经济,安全和不
没有规定或者更高的功率驱动器或一个大型电力供应[ 2 ] .
在早期半主动悬架,规范的阻尼力,可
实现了通过调整开口面积在充油阻尼器,从而改变了
抗流体流动的,但变化的速度远远慢用机械
议案.最近,可能应用的电流（儿）
和磁（先生）的液体在可控阻尼器被查处
许多研究者[ 3,4 ] .呃议员及流体2种智能材料,其中
所作搅拌细颗粒物变成液体,低粘度.这些微粒会
形成了连锁般的纤维结构中存在一个高电场或
磁场.当电场强度或磁场强度达
一定值时,暂停供水将巩固和具有较高的屈服应力;反过来说,
暂停可以liquiefied再次清除电场或