Publications / 1998 Proceedings of the 15th ISARC, Munchen, Germany

A Practical Development of the Suspender Device that Controls Load Rotation by Gyroscopic Moments

Fumihiro Inoue, Kouji Watanabe, Yuichi Ikeda, Tatuya Wakisaka, Akira Wakabayashi, Yoshitsugu Nekomoto
Pages 486-495 (1998 Proceedings of the 15th ISARC, Munchen, Germany, ISSN 2413-5844)
Abstract:

In the transportation of construction material using tower cranes, the hanging loads are frequently rotated by external disturbances. This lowers the efficiency and the safety of this kind of work. For the purpose of reducing load rotation and dangerous works, a suspender device activated by a gyroscope has been developed. This device controls load rotation via two different modes of the gyroscopic moment. In the active control mode, the load turns in high response to commands issued by the controller and can be correctly set in position at the desired angle. In the passive control mode, the load can be kept in position regardless of crane movement or outer disturbance. As a result of applying the suspender device to construction work, the cycle time for load transporting is effectively reduced and shortening of construction period is carried out. The operations are preciously regulated by wireless remote control, and dangerous manipulation works are drastically reduced. This device generates no noise and guarantees a comfortable and safe construction environment.

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