Thesis
Design and analysis of silicone gasket sealing for waterproof portable speakers with thermal creep effects
Washington State University
Master of Science (MS), Washington State University
2018
Handle:
https://hdl.handle.net/2376/100281
Abstract
As consumer electronics are becoming more portable, they are exposed to more potentially damaging conditions such as temperature extremes and water exposure. The purpose of this research is to document the design and analysis process involved in waterproofing a portable speaker product and the challenges encountered, which has not yet been done. Computer simulation is used to optimize the gasket sealing performance of the speaker during its product development, while considering its particular design constraints. The constraint that is most challenging to meet is maintaining sealing after exposure to 70°C heat. The sealing performance after thermal creep effects is analyzed both through simulation and experimental testing. Ultimately, the optimized gasket design proved capable of surviving thermal exposure despite variations in the manufacturing process. Sealing surface imperfections was also analyzed and it was found that hairs as small as 50 microns could greatly affect sealing performance, necessitating air blower cleaning and finished product air leak checks. The failure analysis also highlights that air leak rates and water tightness are not 100% correlated. Engineers seeking to waterproof their products may benefit from this research.
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Details
- Title
- Design and analysis of silicone gasket sealing for waterproof portable speakers with thermal creep effects
- Creators
- Bon We Ung
- Contributors
- Xiaolin Chen (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Electrical Engineering and Computer Science, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900525142801842
- Language
- English
- Resource Type
- Thesis