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INVESTIGATION OF THE DYNAMIC RESPONSE OF HYDRAULIC ACTUATOR USING VISION SYSTEM | ||
| IRAQI JOURNAL OF COMPUTERS, COMMUNICATIONS, CONTROL AND SYSTEMS ENGINEERING | ||
| Article 1, Volume 10, Issue 1, 2010, Pages 26-45 | ||
| Authors | ||
| Dr. Ali I. Mahddi; Ali Haddy Nassir; Dr. Hussam K. Abdul-Ameer | ||
| Abstract | ||
| Abstract: In this research, the dynamic response of the electro-hydraulic system was investigated and analyzed based on adeveloped vision system. An experimental setup, which consist ofhydraulic acircuit (tank, supply pump, pressure gauges, hydraulic actuator, and proportional directional valve) was developed and implemented. In addition, an electronic interface circuit used to control the proportional valve via a personal computer was built. The proposed vision system consistsof adigital video camera used to monitor the hydraulic actuator base on two types of camera poses; fixed and on-rod poses. Algorithms and computer programs were implemented for acquiring the image data from the gained video frames. Extra processing steps of the obtained image data were applied to achieve actuator position, velocity, and acceleration. The mathematical model of the developed experimental setup was derived and simulated using SIMULINK software, where it consists of two parts; proportional valve model and hydraulic actuator model. Evaluation of the theoretical and experimental results and error analyses were presented, where it can be concluded that the use of the vision system as a feedback unit in hydraulic circuit can give promising results in position and force control problem. | ||
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