问题描述：
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~
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~
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