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가속도의 상태변수화를 이용한 강인한 LQ 능동형 현가장치의 설계
이광표(K.P.Lee),윤용산(Y.S.Yoon) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this study, robust LQ active suspension has been designed using the technique to include the sprung-mass acceleration into a state variable. This technique is used to remove the weighting matrix related to the state variables and actuator force. The resultant problem is a Singular Linear Quadratic one. Asymtotic method is used to solve it. LQ active suspension designed in this study guarantees the stability against the actuator modeling error and has the better stability-robustness than the previous LQ active suspension. To show that, the simulation including the actuator model is performed. Additionally high frequency components of the actuator force are eligible to reduce using the performance index proposed in this study.<br/>
이광표(K. P. Lee),최규재(K. J. Choi),윤용산(Y. S. Yoon) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.6_1
In this study, the efficient multibody dynamic simulation program is formulated using Kane's equations. The zeros in partial matrices cause the inefficiency of simulation. To remove the zeros the relative coordinate tree arrays, relative coordinate exponent arrays and the modified partial matrices are formulated. Unnecessary calculations with zeros in forming the equations of motion are nearly removed using the modified partial matrices. To validate the simulation program, the sinusoidal driven quarter car model is simulated. And the results agree with those of DADS very well.<br/> <br/>