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http://dx.doi.org/10.5762/KAIS.2012.13.12.5684

Design of leaf spring with high fatigue life applied to horizontal linear vibrating actuator  

Lee, Ki-Bum (Division of Mechanical Engineering, Yeungnam University)
Kim, Jin-Ho (Division of Mechanical Engineering, Yeungnam University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.12, 2012 , pp. 5684-5688 More about this Journal
Abstract
This paper aims to design the leaf spring of high fatigue life which guides the moving part of the horizontal linear vibrating actuator. The vertical linear vibrating actuator has been used as the vibration device for haptic and alarm function on smart phone. However, the vibrating actuator has a major cause on the limitation to make smart phone slim because of its own characteristic of vertical direction vibration. The horizontally linear vibrating actuator for smart phone slimness has been developed in recent years. One of the most significant parts of horizontal vibrating linear actuator is the guide spring which supports moving part of actuator and enables actuator to vibrate elastically. Various types of leaf springs were designed and analyzed to get the required stiffness with high fatigue life through the stress analysis using commercial structural analysis program, ANSYS. The experiments were performed with prototypes to measure vibration acceleration and life time of leaf spring.
Keywords
horizontal linear vibrating actuator; fatigue life; leaf spring; smart phone;
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  • Reference
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