中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2011年
13期
1634-1637
,共4页
T-S模糊模型%非支配排序遗传算法(NSGA_2)%线性矩阵不等式(LMI)%主动悬架
T-S模糊模型%非支配排序遺傳算法(NSGA_2)%線性矩陣不等式(LMI)%主動懸架
T-S모호모형%비지배배서유전산법(NSGA_2)%선성구진불등식(LMI)%주동현가
Takagi-Sugeno（T-S） fuzzy modeling%elitist non-dominated sorting genetic algorithm（NSGA_2）%linear matrix inequalities（LMI）%active suspension
考虑实际应用,提出一种考虑电液作动器动态特性的主动悬架模糊静态输出反馈控制器的设计方法。利用T-S模糊模型逼近具有非线性动态特性的主动悬架模型,将悬架设计考虑的三个指标中的行驶平顺性（车身垂直加速度）作为H2性能指标,操纵稳定性（轮胎动载荷）和悬架动行程作为H∞性能指标,利用多目标遗传算法——NSGA_2对控制增益进行搜索,通过解线性矩阵不等式得到H2和H∞范数。用MATLAB/Simulink仿真进行比较,结果表明,所得主动悬架的三个性能指标都优于被动悬架。
攷慮實際應用,提齣一種攷慮電液作動器動態特性的主動懸架模糊靜態輸齣反饋控製器的設計方法。利用T-S模糊模型逼近具有非線性動態特性的主動懸架模型,將懸架設計攷慮的三箇指標中的行駛平順性（車身垂直加速度）作為H2性能指標,操縱穩定性（輪胎動載荷）和懸架動行程作為H∞性能指標,利用多目標遺傳算法——NSGA_2對控製增益進行搜索,通過解線性矩陣不等式得到H2和H∞範數。用MATLAB/Simulink倣真進行比較,結果錶明,所得主動懸架的三箇性能指標都優于被動懸架。
고필실제응용,제출일충고필전액작동기동태특성적주동현가모호정태수출반궤공제기적설계방법。이용T-S모호모형핍근구유비선성동태특성적주동현가모형,장현가설계고필적삼개지표중적행사평순성（차신수직가속도）작위H2성능지표,조종은정성（륜태동재하）화현가동행정작위H∞성능지표,이용다목표유전산법——NSGA_2대공제증익진행수색,통과해선성구진불등식득도H2화H∞범수。용MATLAB/Simulink방진진행비교,결과표명,소득주동현가적삼개성능지표도우우피동현가。
For practical application,this paper presented a fuzzy static output feedback controller design approach for vehicle electro-hydraulic active suspensions.Takagi-Sugeno（T-S） fuzzy modeling was applied for approximating the dynamic nonlinear active suspension model.Three main performance requirements should be considered in designing suspension,ride comfort,handing stability and suspension deflection,this paper took the vertical acceleration of the car body as H2 performance,and suspension deflection and tyre deflection as the H∞ performance.NSGA_2 was atilized for searching the feedback gain matrix,the H2 and H∞ norm were acquired via solving LMI.The comparison of the simulation results between active suspension and passive suspension in MATLAB/simulink shows that the three main performances of active suspension are better.
