Simplified Dynamic Model for Amount of Directional Correction of Small-Diameter Tunneling Robot

[+] Author and Article Information
Shin-ichi Aoshima, Tetsuro Yabuta

NTT Transmission Systems Laboratories, Tokai, Ibaraki 319-11, Japan

J. Dyn. Sys., Meas., Control 114(3), 476-480 (Sep 01, 1992) (5 pages) doi:10.1115/1.2897371 History: Received March 01, 1990; Revised October 01, 1991; Online March 17, 2008


In the last decade, small-diameter tunneling technology has improved considerably. As a result, the use of this technology is expected to increase dramatically [1]. For example, one microtunneling system can produce microtunnels ranging in diameter from 45 to 150 mm by using mechanically assisted high-pressure, low-volume fluid jets [2]. However, no dynamic model or automatic direction control has yet been designed for this technology. This paper describes a simplified dynamic model for the amount of vertical directional correction for a small-diameter tunneling robot designed to install telecommunication cable conduit. This model can also be used for the horizontal direction. The direction control of a tunneling robot conventionally depends on both the experience and intuition of the operator, and there have been no studies with regard to its automation. Therefore, in order to establish an automatic control technology for a small-diameter tunneling robot, we construct a simplified dynamic model for the amount of directional correction of the robot taking its past trajectory into consideration. We can make a dynamic simulator for the tunneling robot using this dynamic model. With this simulator, we can establish control laws for robot control. So, this study can contribute to the development of automatic control technology for a tunneling robot.

Copyright © 1992 by The American Society of Mechanical Engineers
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