Push Force Analysis Optimization Based on Differential Evolution Method

This paper conducts an in-depth structural optimization study on the actuator of the push-off type rotary steering drilling tool based on the differential evolution method. By using the "force synthesis model" and through systematic sensitivity analysis and intelligent optimization algorithms, the influence laws of key operating parameters on the push-off force are revealed, and the design scheme of the actuator is successfully optimized. The research results show that: In the stable stationary state: when the high-pressure hole angle is set to 90°, the turntable speed is 200 r/min, and the oscillation speed is 0 r/min, the push-off force can be stably maintained at 13.5 KN, meeting the design requirements; In the clockwise oscillation state: when the high-pressure hole angle is 90°, the turntable speed is 200 r/min, and the oscillation speed is 200 r/min, the push-off force also reaches the target value of 13.5 KN; In the counterclockwise oscillation state: under the condition that the high-pressure hole angle is 90°, the turntable speed is 200 r/min, and the oscillation speed is 100 r/min, the push-off force can still be stably maintained at 13.5 KN. The final optimization scheme is confirmed as follows: the high-pressure hole angle is preferably set to 90°, the turntable speed is fixed at 200 r/min, and the oscillation speed of the control axis can be flexibly adjusted according to the actual working conditions.