著者

瀬古 章雄 武藤 高義 山田 宏尚 田中 克典

出版者

社団法人 日本フルードパワーシステム学会

雑誌

日本油空圧学会論文集 (ISSN:13434616)

巻号頁・発行日

vol.30, no.2, pp.42-47, 1999

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The purpose of this study is to improve the facilities of BDSP into a more convenient one. As regards the first improvement, we have introduced a high-speed calculation method with a fluid line algorithm using a recursive formula. The recursive formula was derived analytically from each of the modal approximation models of the fluid rigid lines and fluid viscoelastic lines. As regards the second improvement, we have introduced a method for simulating the dynamic responses at the arbitrary position of the fluid line, in stead of the conventional method that allows calculation only at both ends of the fluid line. It could be verified in this study that simulation could be done much faster compared with the conventional ones, without any decrease in accuracy. Consequently, BDSP may be concluded to be a convenient and accurate tool for carrying out hydraulic system simulations.

著者

瀬古 章雄 武藤 高義 山田 宏尚

出版者

社団法人 日本フルードパワーシステム学会

雑誌

油圧と空気圧 (ISSN:02866900)

巻号頁・発行日

vol.27, no.2, pp.307-314, 1996

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In this study, a simulation program for hydraulic control systems has been developed. By using this program, the operator is capable of simulating the dynamic performance of systems without the need of any special knowledge as regards software or control engineering. The program was developed for use on personal computers that are most commonly used today. The simulation is carried out according to each operation in a very simple manner based on the block diagram representation of the systems. For these procedures, a graphical user inter-face was successfully incorporated into the program. Regarding the main features or functions of the program, it is possible to simulate pipeline elements, various kinds of nonlinear elements and even discrete time control systems.

著者

武藤 高義 瀬古 章雄 毛利 龍司

出版者

The Japan Fluid Power System Society

雑誌

油圧と空気圧 (ISSN:02866900)

巻号頁・発行日

vol.25, no.6, pp.753-761, 1994

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In this study, a simulation program for hydraulic control systems was developed. By using this program, the operator is able to simulate dynamic performance of the systems without possessing special knowledge of software or control engineering. The program was developed for use on the most conventional type of personal computers. The simulation proceeds with each operation in a very simple manner based on the block diagram representation of systems. For these procedures, a graphical user interface was adopted in the program and, as a result, almost all operations for the simulation can be done by using window facilities on the display. As main features or functions of the program, it is possible to simulate pipeline elements, various kinds of nonlinear elements and discrete time control systems.