Title Development and investigation of vibropad for periodical microstructures replication /
Translation of Title Vibropado naudojamo periodinių mikrostruktūrų antrinimui kūrimas ir tyrimas.
Authors Gunasekaran, Senthilkumar
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Pages 53
Keywords [eng] microsystem engineering ; replication technology ; mechanical vibration
Abstract [eng] The vibropad of new construction used for replication of microstructures was proposed in the paper. Upon having set the operating frequencies and having selected the optimal vibropad construction, the work was carried out in accordance with the drawing of vibropad components. The finite element method was applied. The created design will be used in the executive research and development of microstructures in forming and replication technologies carried out by the research group “Microsystems Engineering” of KTU Faculty of Mechanical Engineering and Design. The replication of master microstructure is produced due its cost. The microstructure is used in all fields nowadays. The periodical microstructures were found by an American astronomer David Rittenhouse. It was not as small as microstructures. The shape, size and its manufacture ways change from its invention y various ways. The replication was done by using several techniques to make it available for all in less cost. The quality of the replication is increased from its invention. Various steps and research taken to provide better quality of replication. The vibropad is one of the device which was introduced to make better replication with thermal imprint technique. The vibropad has its changes in design and quality of replication. The uniform vibration displacement produces better quality of replication is known from previous studies. The uniform vibration displacement is done by using high frequency excitation. The shape and design were done for vibropad to avoid deflection of shape and damage to device during vibrations. The design of vibropad were changed from previous studies since the it had some deflection in shape and quality of the replication can be increased by high frequency excitation of uniform vibrations. So, by providing the uniform vibrations throughout the surface of the polymer, the quality of the replication is increased. The working principle is same as the previous Vibroactive pad but only the process is changed. The polymer is used to be at top of the Vibroactive pad but in this process the vibropad will be at top and polymer will be at bottom. The main change in the design is the heating will be given using external element but in this design the heating element is attached to the vibropad device by designing perfectly to it. The working process of the vibropad device. The finite element analysis for the design of vibropad device simulation is presented. The frequency displacement curves of the device simulation were presented. The paper also showcases the fabricate parts of heating element and assembled vibropad device. Therefore, the investigation was done on previous studies of vibropad device and it was developed for the better quality of the replication. Even the quality of device is also increased by changing its design and parts due to quality issues.
Dissertation Institution Kauno technologijos universitetas.
Type Master thesis
Language English
Publication date 2017