This paper deals with an efficient technique for the development of mechatronic systems. Individual parts of such system as mechanics, actuators, sensors, control system, etc. are designed in several passes through V-model with respects to mutual feedbacks. Based on this methodology the developed system is made as a virtual prototype and can be tested and simulated using cosimulation technique. The ADAMS and SIMULINK cosimulation is used and it is based on direct embedding of dynamic model of the mechanical system with sensors and actuators implemented in ADAMS into MATLAB environment to a control system design and a virtual prototype model tuning. So the complex model of mechatronic system applies the same implementation for design, simulation and testing.
This paper presents a novel design of a nonlinear kinetic energy harvester for very low excitation frequencies below 10 Hz. The design is based on a proof mass, rolling in a circular cavity in a Tusi couple configuration. This allows for an unconstrained displacement of the proof mass while maintaining the option of keeping the energy transduction element engaged during the whole cycle and thus reducing the required number of transduction elements. Both the presented model and the fabricated prototype of the device employ electromagnetic induction to harvest energy from low frequency and low magnitude vibrations that are typically associated with human movements. The prototype demonstrated an average power of 5.1 mW from a 1.3 g periodic acceleration waveform at 2.78 Hz. The highest simulated normalized power density reaches up to 230 μW/g 2 /cm 3 , but this depends heavily on the excitation conditions.
This paper deals with a unique principle of energy harvesting technologies. An energy harvesting device generates electric energy from its surroundings using some kind of energy conversion method. Therefore, the considered energy harvesting device does not consume any fuel or substance. The presented energy harvesting system is used forenergy harvesting of electrical energy from mechanical shocks. The presented energy harvesting system uses a very sensitive vibration energy harvester, which was developed for an aeronautic application at Brno University of Technology. This energy harvesting system is a complex mechatronic device, which consists of a precise mechanical part, an electromagnetic converter, power electronics (power management) and a load (e.g., wireless sensor). The very sensitive vibration energy harvester is capable of usingthe mechanical energy of mechanical shocks and it can harvest useful energy. This energy harvesting system is used with a wireless temperature sensor and measured results are presented in this paper.
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