다중 토출형 레이디얼 피스톤 펌프의 맥동 저감과 동기제어

Abstract

Abstract In this paper, we study the synchronization control and pulsation reduction of the Multi-delivery type radial piston pump. And hydraulic system to drive ultra-high pressure hydraulic jack, an ultra-high pressure hydraulic tool primarily, radial piston pumps have been used very limited. In Korea, demand for ultra-high pressure hydraulic machinery of special purpose such as ultra-high pressure jack in the areas of shipbuilding industry, such as civil engineering large-scale construction has increased, the need for ultra-high-pressure pump and valve related technology by this I'm growing is. Therefore, it was decided by the technical requirements of these start and study. Discharge type radial piston pump from a plurality of ultra-high pressure hydraulic pump is a radial piston pump of a special type.

In this study, the first, pulsation reduction of a Multi-delivery type radial piston pump pulsation reduction are discussed. Multi-delivery type Radial Piston Pump has a discharge port for the number of piston. In order to use the flow rate generated by the piston in one, the pressure pulsation is big problem. Study to know the pressure pulsation of the pump hydraulic system configured and tested through the load pressure was measured by pressure pulsation. As a result of the pressure pulsation in a single transmit port size is very large, could see that. As a workaround for pressure pulsation Helmholtz resonator is used. unique damping characteristics of Helmholtz resonator by calculating the transmission loss of pulsation filters were designed accordingly. For accurate analysis and AMESim S / W for the pump through the numerical simulation study is performed. Hydraulic system modeling and pulsed by applying a filter to simulate the performance of the filter was pulsating. After that the data obtained through simulation are verified by experiments. Transmission loss method designed to study the Helmholtz resonator attached to the pump pulsation was to evaluate the performance of the filter. As a result, the pressure pulsation results were reduced by approximately 70%. This multi-type radial piston pump discharge pressure pulsation that occurs in a relatively simple and fundamental frequency of the waveform is greater from the elements and is thought to be due to have. The simulation results were compared with the experimental results of the general analysis program AMESim S/W configured as a simulation model, including the performance of the filter in a pulsating pressure pulsation was confirmed that the calculated fairly precisely. Multi-delivery type radial piston pump discharge pulsation filters mounted in a very large pulsation reduction effect can be obtained, the multiple use of Multi-delivery type radial piston pump radial piston pump is considered to be of great help. Second, Multi-delivery type radial piston pump covers synchronous control. Multiple synchronized hydraulic pump control system is applied to a Multi-delivery type radial piston pump can be replaced, as have the advantage. If the load on each cylinder in the wrong flow from the pump cylinder is the same even if the location of the error in the transmission may occur. To solve this problem, where precise control is required, that can be used in the development of control algorithms are motivated. Motivation to control pressure valve for single acting cylinder and is connected to the hydraulic system configuration. High pressure flow through the valve to bypass the motion of single acting cylinder is controlled. For accurate analysis AMESim S/W through the hydraulic system modeling and control performance by applying a high-pressure valve to simulate. After that the data obtained through simulation are verified by experiments. In the experiment, a specific input signal and the load pressure and high-pressure hose to the cylinder length, and different control methods to measure the displacement of the cylinder. As a result, the displacement of the cylinder may not know that well to follow. Under various conditions of pressure control valve for precise control just enough proved that it is possible. The simulation results were compared with the experimental results of the general analysis program AMESim S/W configured as a synchronous control algorithms in simulation models that were accurately calculated. Multi-delivery type radial piston pump synchronization control algorithm in the synchronous control of multiple conditions could be satisfied, the Multi-delivery type radial piston pump for use is thought to be of great help. In conclusion, the main disadvantage with pulsating Multi-delivery type radial piston pump pulsation filter, you effectively can reduce the pulsation. And the precise synchronization control algorithm because it can control a wide range of Multi-delivery type radial piston pump to the use of what is thought to be a big help.