Material property manipulation of photopolymer vibration energy harvesters

Evan Baker, Timothy Reissman, Fan Zhou, Cheng Sun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The inefficiency in converting naturally occurring vibration frequencies (sub- 100 Hz) to electrical energy continues to be a major obstacle for miniaturized vibration energy harvesters. In a recent work, we addressed this issue by introducing photopolymer-based designs, using projection microstereolithography, which exhibited 61 Hz resonant frequencies due to low elastic moduli and low flexural rigidity using a three-dimensional, helical coil design. In this paper, we extend upon those findings to report on a post-process technique which uses ultraviolet exposure time to manipulate the material properties of photopolymer-based vibration energy harvesters. The results show with 1-3 minutes of post-exposure, an effective elastic modulus variation from 399-904 MPa and a parasitic damping change from 0.0595-0.0986 kgs -1 . Likewise, resonant frequency shifts of 53.5-80.5 Hz and power output increase from 56.5 to 120.4 μW (when excited at a constant acceleration of 6.06±0.06 ms -2 ) are achieved, without geometry changes and using the same photopolymer material.

Original languageEnglish (US)
Title of host publicationASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012
Pages263-272
Number of pages10
DOIs
StatePublished - Dec 1 2012
EventASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012 - Chicago, IL, United States
Duration: Aug 12 2012Aug 12 2012

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume5

Other

OtherASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012
CountryUnited States
CityChicago, IL
Period8/12/128/12/12

ASJC Scopus subject areas

  • Modeling and Simulation
  • Mechanical Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

Fingerprint Dive into the research topics of 'Material property manipulation of photopolymer vibration energy harvesters'. Together they form a unique fingerprint.

  • Cite this

    Baker, E., Reissman, T., Zhou, F., & Sun, C. (2012). Material property manipulation of photopolymer vibration energy harvesters. In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012 (pp. 263-272). (Proceedings of the ASME Design Engineering Technical Conference; Vol. 5). https://doi.org/10.1115/DETC2012-71439