DOI QR코드

DOI QR Code

A Study of the Vibration Characteristics of a Haptic Vibrator for Horizontal and Vertical Magnetization

수평 및 수직 착자에 대한 햅틱 진동자의 진동특성에 관한 연구

  • Received : 2014.09.17
  • Accepted : 2015.01.27
  • Published : 2015.04.01

Abstract

This paper describes the study of the design procedure for the step-by-step setup parameters and of the magnetizing method for performance and size reduction in the development of a haptic vibrator. The study of magnetization was accomplished by comparing the electromagnetic force in accordance with the horizontal and the vertical magnetization. The theoretical results indicated that the horizontal magnetization resulted in a better performance. The systematic design of a step-by-step procedure for establishing the design parameters was verified by testing the characteristics of the fabricated prototype product. The vibration response function analysis and electric field analysis were processed by decoupling of the analytical method, and these were determined to be in good agreement with the test results. The design parameters to contributing to the product reliability included the spring height, the welding position, and the coil position. The sensitivity of the electromagnetic field and the performance change were analyzed based on the design parameters. As a result, we proposed a design method to implement a reliability-based, high performance haptic vibrator.

본 연구는 햅틱 진동자의 개발과정에 있어 성능인자의 단계별 설정절차와 성능 및 소형화를 위한 자석의 착자방법에 대한 연구를 수행하였다. 착자방법에 대한 연구는 수평착자와 수직착자의 구성방법에 따른 전자기력을 비교분석하여 수행하였으며, 수행결과 수평착자가 우수한 것으로 나타났다. 시스템적 설계 절차로는 제품의 특성으로부터 설계 인자를 설정하는 단계적 절차를 구성하여 시작품을 제작하고 시험을 통하여 검증하였다. 해석적 방법에서는 진동응답 특성 해석과 전기장의 해석을 독립적으로 수행하였으며, 시험결과와의 검증을 통해 잘 일치하는 결과를 도출하였다. 제품신뢰성 확보를 위한 신뢰성 기반 설계인자는 스프링 높이, 용접 위치, 코일의 위치로 선정하였다. 그리고 설계 인자에 따른 전자기장 민감도 및 성능 변화를 분석하였고 이를 바탕으로 신뢰성 기반의 고성능 햅틱 진동자를 구현할 수 있도록 설계방법을 제시하였다.

Keywords

References

  1. Park, J. B., Ko, B. H., Park, Y. P., Park, N. C., Park, K. S. and Seo, H. W., 2013, "Vibration Characteristics Improvement of Smart Phone Linear Resonant Actuator," Proceedings of the KSNVE Annual Spring Conference, pp. 147-148.
  2. Karng, S. W., Lee, J. Y. and Kwak, H. Y., 2000, "Analysis on the Oscillation of Nonlinear Oscillators," KSME Fall Annual Meeting, pp. 585-590.
  3. Park, J. S. and Go, Y. J., 2005, "An Analysis of Vibration and Frequency Characteristics for Quartz Crystal Using the Finite Element Method," Transactions of the Institute of Electronics and Information Engineering. Vol. 42, No. 1, pp. 7-12.
  4. Choi, Y. S., 1989, "Steady-state of Forced Symmetric Piecewise-Linear Oscillator," Trans. Korean Soc. Mech. Eng. Vol. 13, No. 4, pp. 583-594. https://doi.org/10.22634/KSME.1989.13.4.583
  5. Abaqus User's Manual 2013, "Magnetic Pulse Forming of a Metallic Tube," Dassault System. Workshop 4.
  6. Kim, C. H., Ju, Y. H. and Park, J. P., 1999, "Vibration Analysis of a Generator-Stator Core Under Electromagnetic Excitation," Transactions of the Korean Society for Noise and Vibration Engineering. Vol. 9, No. 4, pp. 747-753.

Cited by

  1. A study of optimization for vibration performance and electromagnetic force of the bone conduction speaker actuator asymmetry pp.2041-2983, 2018, https://doi.org/10.1177/0954406217712281