The paper deals with a new variant of a cycloidal planetary transmission (CPT) with modified structure, proposed by the authors, able to accomplish high kinematical ratio and high efficiency, useful to fit mechatronic systems of Renewable Energy Systems (RES). Through the conceptual design approach, six new transmission variants were generated and the principle solution was established. Further on, optimization studies on the geometrical features and dynamic behavior of the new planetary gear were performed. Based on a physical prototype and using a modern high-tech stand, experimental researches on the efficiency of the new cycloidal transmission tested as reducer were performed. The obtained experimental results comply with the theoretical model, and some performance features of the transmission prototype are thus derived. I. INTRODUCTIONA modern trend in developing renewable energy systems (RES) from solar, hydro and wind energy conversion domains deals with the increasing of their energetic efficiency by reducing friction losses. This imposes to use mechatronic transmissions with high efficiency combined with big kinematical (reduction or multiplication) ratio. The paper belongs to this research direction, developing a new solution of cycloid planetary transmissions (CPT) designated to reduce or increase rotational speed with big kinematical ratio, good efficiency and reduced complexity. This new transmission is designated to fit as reducer in certain mechatronic tracking systems (for the solar collectors) and as amplifier in certain hydro and wind mechatronic systems.The tracking systems are mechanical/mechatronic devices meant to orientate the systems for solar energy conversion so that the solar rays propagate perpendicularly on the receptor surface. In the majority of cases, the tracking systems integrate in their actuation a speed reducer with high kinematical ratio [1, 10].Most wind turbines and hydro-power stations' drive trains include a gearbox to increase the speed of the input shaft to the generator. The speed increase is needed because the wind turbines rotors and the hydro turbines shafts turn at a much lower speed than is required by most electrical generators. The range in which the input angular speed must be increased is 3…30 [8, 9, 12].The transmission of mechanical power under a constant kinematical ratio, represents the function of a large class of products known as speed reducers/ amplifiers. The use of these products is imposed mainly by the usual incongruity between the high motor speeds and the relatively reduced speeds of effectors [5,14,17].
In this paper one proposed to exemplify a modern solution of an automatic control of industrial production lines. The necessity to align at the requirements of industrial competition has led to a degree of automation of increasingly advanced that the human intervention into the processes is minimal. A high productivity means lower flow interruptions as manufacturing, so the systems which control these lines must operate without errors. This can be done only by testing control programs and monitoring automation systems and, also, through simulate the manufacturing process.
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