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Thesis FINAL 5.2.18.pdf (4.2 MB)

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Modeling and Simulation of a Novel Electrostatic Beat Actuator for Haptic Feedback in Touch Screens

Schuster, Jeremy Mitchell
http://rave.ohiolink.edu/etdc/view?acc_num=miami1525280665772122

Abstract Details

2018, Master of Science, Miami University, Mechanical and Manufacturing Engineering.
Haptic feedback is a highly beneficial feature of touch screens. Due to the limitations of current haptic technologies, devices with large touch screens are unable to provide haptic feedback to users. This study proposes and investigates an electrostatic actuator utilizing frequency beating phenomenon with the goal of generating haptic feedback in devices with large touch screens. A prototype device was fabricated and through experimentation, two unique high intensity vibration patterns were found at each beat frequency. An analytical model of the prototype was developed to. The model produced a peak vibration intensity distribution closely resembling that of the experimental data. The possibility of three input signals was investigated. Variations in beating patterns could be seen, but this provides little benefit in application. A multiphysics model was developed to provide a more accurate representation of the operation of the actuator. This model was also used do investigate the effects of the coupling of displacement and electrostatic force. The multiphysics model was able to produce accurate results but was unstable when using certain input conditions. The displacement coupling creates changes in the computed displacement and intensity response. The model produced the same peak intensity distribution as the experimental data. Improvements can be made to both models to improve accuracy and stability. The models are intended to aid in the refinement of the design of future prototypes.
Jeong-Hoi Koo, Ph. D. (Advisor)
Jens Mueller, Ph. D (Committee Member)
Kumar Singh, Ph. D. (Committee Member)
83 p.
Design; Mechanical Engineering
haptics; electrostatics; MEMS; actuators; touch screens; vibration; tactile; frequency beating

Recommended Citations

Citations

  • Schuster, J. M. (2018). Modeling and Simulation of a Novel Electrostatic Beat Actuator for Haptic Feedback in Touch Screens [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1525280665772122

    APA Style (7th edition)

  • Schuster, Jeremy. Modeling and Simulation of a Novel Electrostatic Beat Actuator for Haptic Feedback in Touch Screens. 2018. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1525280665772122.

    MLA Style (8th edition)

  • Schuster, Jeremy. "Modeling and Simulation of a Novel Electrostatic Beat Actuator for Haptic Feedback in Touch Screens." Master's thesis, Miami University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=miami1525280665772122

    Chicago Manual of Style (17th edition)

miami1525280665772122
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© 2018, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.