Abstract
This paper is focused to improve the responses of the cutter system of the shield machine to sudden load changes. By analyzing the conventional control method of the displacement of the pump, a new control method named as hydraulic controlled and regulated direct method is proposed. The simulation results show that the new control method has a shorter response time and better dynamic behavior, when the shield machine encounters sudden load changes and the system pressure jumps from 7 to 25 MPa. The length of the pipe between the shuttle valve and the pump is also taken into account in affecting the response of the system.DOI: http://dx.doi.org/10.5755/j01.mech.18.4.2321
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