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

水野 将弘 山田 宏尚 武藤 高義

出版者

社団法人日本機械学会

雑誌

東海支部地区講演会講演論文集

巻号頁・発行日

vol.2001, pp.106-107, 2001

著者

山田 宏尚

出版者

一般社団法人 日本ロボット学会

雑誌

日本ロボット学会誌 (ISSN:02891824)

巻号頁・発行日

vol.33, no.6, pp.400-403, 2015 (Released:2015-08-15)

参考文献数

10

被引用文献数

6 4

著者

趙 丁選 山田 宏尚 加藤 英寿 武藤 高義

出版者

一般社団法人 日本フルードパワーシステム学会

雑誌

日本フルードパワーシステム学会論文集 (ISSN:18803121)

巻号頁・発行日

vol.33, no.7, pp.141-148, 2002-11-15 (Released:2011-03-03)

参考文献数

16

被引用文献数

1

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This study deals with a calculation method for the forward kinematics of a 3 DOF parallel link manipulator. As a method for such a calculation, up to the present, the Newton method, or Newton-Raphson method alternatively, has been generally used. Nevertheless, this method is difficult to apply to on-line control systems, since it requires significant computation time and a large capacity of computer memory for calculations. In this study, therefore, a new algorithm for calculating forward kinematics is proposed. Fundamentally, the algorithm consists of two processes. The first is to calculate in a very short time an approximate solution of the kinematics. The second is to compensate the approximate solution in order to obtain the accurate one. It was confirmed that the computation time for the new algorithm was decreased to as little as 1/69-1/81 that for the Newton method. It was also confirmed experimentally that the algorithm was successfully applicable to an on-line control system.