Modeling and design of flexure hinge-based compliant mechanisms. - In: Kinematics, (2019), S. 1-24
A compliant mechanism gains its mobility fully or partially from the compliance of its elastically deformable parts rather than from conventional joints. Due to many advantages, in particular the smooth and repeatable motion, monolithic mechanisms with notch flexure hinges are state of the art in numerous precision engineering applications with required positioning accuracies in the low micrometer range. However, the deformation and especially motion behavior are complex and depend on the notch geometry. This complicates both the accurate modeling and purposeful design. Therefore, the chapter provides a survey of different methods for the general and simplified modeling of the elasto-kinematic properties of flexure hinges and compliant mechanisms for four hinge contours. Based on non-linear analytical calculations and FEM simulations, several guidelines like design graphs, design equations, design tools or a geometric scaling approach are presented. The obtained results are analytically and simulatively verified and show a good correlation. Using the example of a path-generating mechanism, it will be demonstrated that the suggested angle-based method for synthesizing a compliant mechanism with individually shaped hinges can be used to design high-precise and large-stroke compliant mechanisms. The approaches can be used for the accelerated synthesis of planar and spatial flexure hinge-based compliant mechanisms.
https://doi.org/10.5772/intechopen.85224
They need more than technology-equipped schools: teachers' practice of fostering students' digital protective skills. - In: Media and communication, ISSN 2183-2439, Bd. 7 (2019), 2, S. 137-147
https://doi.org/10.17645/mac.v7i2.1902
Over-the-air testing of automotive antennas and wireless links in the installed state on the basis of LTE downlink communication parameters. - In: Advances in science, technology and engineering systems journal, ISSN 2415-6698, Bd. 4 (2019), 1, S. 282-291
https://doi.org/10.25046/aj040127
Vehicle-to-Pedestrian communication for vulnerable road users: survey, design considerations, and challenges. - In: Sensors, ISSN 1424-8220, Bd. 19 (2019), 2, 358, insges. 18 S.
https://doi.org/10.3390/s19020358
Bleaching effects and fluorescence lifetime imaging ophthalmoscopy. - In: Biomedical optics express, ISSN 2156-7085, Bd. 10 (2019), 3, S. 1446-1461
https://doi.org/10.1364/BOE.10.001446
Image-based classification of plant genus and family for trained and untrained plant species. - In: BMC bioinformatics, ISSN 1471-2105, Bd. 20 (2019), 4, insges. 13 S.
https://doi.org/10.1186/s12859-018-2474-x
The remote experimentation as the practical-oriented basis of inclusive engineering education. - In: International journal of online and biomedical engineering, ISSN 2626-8493, Bd. 15 (2019), 5, S. 4-17
https://doi.org/10.3991/ijoe.v15i05.9752
detasFLEX - a computational design tool for the analysis of various notch flexure hinges based on non-linear modeling. - In: Mechanical sciences, ISSN 2191-916X, Bd. 9 (2018), 2, S. 389-404
A novel computational design tool to calculate the elasto-kinematic flexure hinge properties is presented. Four hinge contours are implemented. It is shown, that FEM results correlate well with the analytical design tool results. For a given deflection angle of 10˚ and a corner-filleted contour, the deviations of the bending stiffness are between 0.1 % and 9.4 %. The design tool can be beneficial for the accelerated and systematic synthesis of compliant mechanisms with optimized flexure hinges.
https://doi.org/10.5194/ms-9-389-2018
Hybrid scheme to enable DTN routing protocols to efficiently exploit stable MANET contacts. - In: EURASIP journal on wireless communications and networking, ISSN 1687-1499, (2018), 237, S. 1-13
https://doi.org/10.1186/s13638-018-1248-5
Enhancement of localization systems in NLOS urban scenario with multipath ray tracing fingerprints and machine learning. - In: Sensors, ISSN 1424-8220, Bd. 18 (2018), 11, 4073, insges. 30 S.
https://doi.org/10.3390/s18114073