441 2 室型空気ばねを用いたスカイフック剛性制御

概要

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Recently, air springs are applied to various suspensions widely. But, damping of an air spring is small and it needs other damper system. The approach of the air spring with high damping is an active control of adding of a passive damping with orifice between 2 rooms. The air spring with 2 rooms is modeled by 3 elements model, and the optimal design of this system is shown by the theory of fixed point. In this paper, we examine a semi-active control of an air spring with 2 rooms by a variable orifice. This control makes use of variable stiffness and variable damping with the air spring with 2 rooms. Firstly, a skyhook control by variable damping is examined, it is shown that the efficiency of skyhook control is better than the passive system. Next, we examine the efficiency of a variable stiffness control. Lastly, we proposed a variable stiffness control combined with skyhook control, and the validity of this method is examined by simulations and examinations.
一般社団法人日本機械学会の論文
2002-09-13