Abstract
Recently, shortage of labor force has become a serious problem in mining industry, civil engineering and construction industry and so on. This is because of hard work load and its complication. Therefore, robotized machines have been required to improve labor-saving, safety and production in mining and construction works. Microcomputers have become very powerful in terms of communication capabilities and computing power. All that's at a lower cost. As a result of the availability of these powerful, low cost microcomputers, it is now possible to integrate them into oil hydraulic machines.In this paper, a vibration technique is employed to the oil hydraulic cylinder, which has multiple function. An apparatus of the experiment is an oil hydraulic controlled system with the two single-rod cylinders, proportional solenoid controlled valve and high speed on-off solenoid valve. First, the system is identified by mean of an expended least square method, and its pulse transfer function is determined. Next, the experiment is made with variation of the supply pressure and the frequency and the bias voltage under some levels of the constant load. As a results, the quantitative properties, namely, the vibration amplitude, the feed speed, the frequency, the maximum pushing force and the acceleration, are obtained.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
