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Abstract

Design method of planar vibration system for specified ratio of energy peaks

Kim, Jun Woo
Year 2015

The magnitudes of the resonant peaks should be considered in the design stage of any bandwidth-relevant applications to widen the working bandwidth. This paper presents a new design method for a planar vibration system that satisfies any desired ratio of peak magnitudes at target resonant frequencies. An important geometric property of a modal triangle formed from three vibration centers representing vibration modes is found. Utilizing the property, the analytical expressions for the vibration energy generated by external forces are derived in terms of the geometrical data of vibration centers. When any desired ratio of peak magnitudes is specified, the locations of the vibration centers are found from their analytical relations. The corresponding stiffness matrix can be determined and realized accordingly. The systematic design methods for direct- and base-excitation systems are developed, and one numerical example is presented to illustrate the proposed design method.

제목
H. S. Kim, J. W. Kim, S. B. Park, Y. J. Choi, "Design of serial linkage-type vibration energy harvester with three resonant frequencies," Smart Materials and Structures, 26(11), 115030, 2017.
S. B. Park, S. J. Jang, I. H. Kim, Y. J. Choi," Broadband vibration energy harvester utilizing three out-of-plane modes of one vibrating body," Smart Materials and Structures, 26(10), 105049, 2017.
J. W. Kim, S. Lee, Y. J. Choi, "Design method of planar vibration system for specified ratio of energy peaks." Journal of Sound and Vibration 344, pp.363-376, 2015.
J. W. Kim, M. B.Hong, Y. J.Choi,"New Jacobian approach to the kinestatic analysis of a planar double-wishbone suspension mechanism," Proceedings of the Institution of Mechanical Engineers,Part D:J. Autom. Engin. 227.7,pp.1085-1096,2013.
S. J. Jang, J. W. Kim, Y. J. Choi, "Triangular relationship between vibration modes of an elastically supported rigid body with a plane of symmetry", Proc. IMechE, Part C: Journal of Mechanical Engineering Science Vol. 226 No. 5 , pp.1254-1262, 2012.
M. B. Hong, Y. J. Choi, "Design method of planar three-degrees-of-freedom serial compliance device with desired compliance characteristics", the Institution of Mechanical Engineers, Mechanical engineering science Vol. 226 No.9, pp.2331-2344, 2012.
M. B. Hong, Y. J. Choi, "Formulation of Unique Form of Screw Based Jacobian for Lower Mobility Parallel Manipulators", Journal of mechanisms and robotics Vol .3, pp.1-6, 2011.
M. B. Hong, Y. J. Choi, "Design method of planar three-degrees-of-freedom serial compliance device with desired compliance characteristics", The Institution of Mechanical Engineers, Mechanical engineering science Vol. 226 No.9, pp.2331-2344, 2012.
M. B. Hong, Y. J. Choi, "Formulation of Unique Form of Screw Based Jacobian for Lower Mobility Parallel Manipulators", Journal of mechanisms and robotics Vol .3, pp.1-6, 2011.
M. B.Hong, Y. J.Choi,"The conditions for mode decoupling of a linear vibration system with diagonalizable stiffness matrices via screw theory“, Proceedings of the Institution of Mechanical Engineers,Part C: Mech. Engin. Sci. Vol. 225,pp.101-111,2011.
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