드리프터 유압 모델링 기반 제어 변수 분석

초록

The hydraulic drifter is used to form a hole in the bedrock through a complex mechanism of hitting and rotation, and blow out rock dust generated when the hole is formed by spraying high-pressure compressed air to perform drilling for underground tunnel construction, aggregates, minerals, and general civil work. However, if the drilling is deflected during the drilling operation, the size of the rock is not uniform, which increases the cost of grinding, sorting, and loading, so an automatic drilling module is required to minimize the deflection angle. To solve the above problem, we try to control the hitting factor to minimize the perforation deviation. To this end, the change in the flow rate and pressure of the overall hydraulic line of the drifter according to the input signal was checked to identify the hydraulic flow of the AMESIM drifter model and to confirm the reaction force resulting from randomly changing the spring k value. In addition, the reaction force in the spring model was confirmed by applying the input signal consistently at 100%, 75%, 50%, and 25%, and control logic was implemented to enable control within a constant boundary. Through the above process, control variables based on drift hydraulic modeling were analyzed.