DETERMINE THE OPTIMAL SPEED OF THE ROTARY PRESS-IN PILER WHEN LOWERING STEEL PIPE INTO THE CORRAL FOUNDATION

Abstract

This paper represents a method to determine the optimal speed of the rotational and translational movement of the rotary press-in piler when lowering the steel pile into the coral foundation. The first, build a dynamic model of the rotary press-in piler when lowering the steel pile into the coral foundation, then determine the optimal speed of this driller when the power and torque driving this actuator are known in advance so that the depth of the pile reaches the maximum value. The content of this paper includes the use of theory of multibody systems to build the dynamic model, Pontryagin's maximum principle, and specialized software to find the reasonable speed of rotational-translational movement of this driller in each speed range when lowering the steel pile into the coral foundation to achieve the highest productivity.