μ設計法を用いた空気ばね内圧制御による高速鉄道車体の上下振動低減に関する研究

抄録

In recent years, railway vehicles have been more lightweight because of improving the running speed. On the other hand, the vertical vibration of car body sensed uncomfortably by passengers has become a problem because of weight reduction. Therefore, there is a lot of research to reduce those vibrations. In previous study, the effectiveness of the vertical vibration reduction was examined by controlling internal pressure of air spring using H_∞ control theory. As a result of this examine, the controller by H_∞ control theory was effective for vertical vibration reduction. However, several problems have been identified with the controller by H_∞ control theory. In this study, the author aimed to reduce vertical vibration by controlling internal pressure of air spring using μ - synthesis. The merit of μ - synthesis is that this control theory can make higher potential controller than controller by H_∞ control theory and guarantee robust performance. At the beginning, the author made the controller by μ - synthesis for 1/6 scale railway model. Moreover, the author experimented with 1/6 scale railway model to verified nominal performance and robust performance. In conclusion, the controller by μ - synthesis is effective for vertical vibration reduction of 1/6 scale railway model.