Coupled electrostatic-structural interaction needs to be modeled for designing many electrostatically actuated devices such as MEMS switches, accelerometers and comb-drives. The models for such devices must include an assembly of components and the air gaps between them. The electrostatic fields are generated in the air gaps and this field produces electrostatic forces which act on the structural components causing deformation and strains. Generating an appropriate mesh for such an assembly of regions with different material properties can be cumbersome. In this paper, we have developed an immersed boundary approach where the geometry is defined using the equations of the boundary and is immersed in a uniform background mesh. The loads and boundary conditions are imposed using the implicit boundary method since the nodes of the background mesh are not guaranteed to be on the boundaries. This approach is verified by applying it to commonly used examples.
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ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 2–5, 2015
Boston, Massachusetts, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5704-5
PROCEEDINGS PAPER
Coupled Electrostatic-Structural Analysis Using Mesh Independent Approach
Pushkar Mishra,
Pushkar Mishra
University of Florida, Gainesville, FL
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Ashok V. Kumar
Ashok V. Kumar
University of Florida, Gainesville, FL
Search for other works by this author on:
Pushkar Mishra
University of Florida, Gainesville, FL
Ashok V. Kumar
University of Florida, Gainesville, FL
Paper No:
DETC2015-46865, V01AT02A006; 7 pages
Published Online:
January 19, 2016
Citation
Mishra, P, & Kumar, AV. "Coupled Electrostatic-Structural Analysis Using Mesh Independent Approach." Proceedings of the ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1A: 35th Computers and Information in Engineering Conference. Boston, Massachusetts, USA. August 2–5, 2015. V01AT02A006. ASME. https://doi.org/10.1115/DETC2015-46865
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