Numerical and Experimental Studies on Nonlinear Dynamics and Performance of a Bistable Piezoelectric Cantilever Generator
A piezo-magneto-elastically coupled distributed-parameter model of a bistable piezoelectric cantilever generator is developed by using the generalized Hamilton principle. The influence of the spacing between two adjacent magnets on the static bifurcation characteristics of the system is studied and...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/692731 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849414877096968192 |
|---|---|
| author | Kangkang Guo Shuqian Cao Shiyu Wang |
| author_facet | Kangkang Guo Shuqian Cao Shiyu Wang |
| author_sort | Kangkang Guo |
| collection | DOAJ |
| description | A piezo-magneto-elastically coupled distributed-parameter model of a bistable piezoelectric cantilever generator is developed by using the generalized Hamilton principle. The influence of the spacing between two adjacent magnets on the static bifurcation characteristics of the system is studied and the range of magnet spacing corresponding to the bistable states is obtained. Numerical and experimental studies are carried out to analyze the bifurcation, response characteristics, and their impact on the electrical output performance under varying external excitations. Results indicate that interwell limit cycle motion of the beam around the two centers corresponds to optimum power output; interwell chaotic motion and multiperiodic motion including intrawell oscillations are less effective. At a given frequency, the phenomena of symmetric-breaking and amplitude-phase modulation are observed with increase of base excitation. Both period-doubling bifurcation and intermittency routes to chaotic motion in the bistable system are found. It can be observed that the power output is not proportional to the excitation level because of the bifurcation behaviours. |
| format | Article |
| id | doaj-art-71b01fc60fee44ee8d29aa68fdc78cb8 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-71b01fc60fee44ee8d29aa68fdc78cb82025-08-20T03:33:42ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/692731692731Numerical and Experimental Studies on Nonlinear Dynamics and Performance of a Bistable Piezoelectric Cantilever GeneratorKangkang Guo0Shuqian Cao1Shiyu Wang2School of Mechanical Engineering, Tianjin University, Tianjin 300072, ChinaSchool of Mechanical Engineering, Tianjin University, Tianjin 300072, ChinaSchool of Mechanical Engineering, Tianjin University, Tianjin 300072, ChinaA piezo-magneto-elastically coupled distributed-parameter model of a bistable piezoelectric cantilever generator is developed by using the generalized Hamilton principle. The influence of the spacing between two adjacent magnets on the static bifurcation characteristics of the system is studied and the range of magnet spacing corresponding to the bistable states is obtained. Numerical and experimental studies are carried out to analyze the bifurcation, response characteristics, and their impact on the electrical output performance under varying external excitations. Results indicate that interwell limit cycle motion of the beam around the two centers corresponds to optimum power output; interwell chaotic motion and multiperiodic motion including intrawell oscillations are less effective. At a given frequency, the phenomena of symmetric-breaking and amplitude-phase modulation are observed with increase of base excitation. Both period-doubling bifurcation and intermittency routes to chaotic motion in the bistable system are found. It can be observed that the power output is not proportional to the excitation level because of the bifurcation behaviours.http://dx.doi.org/10.1155/2015/692731 |
| spellingShingle | Kangkang Guo Shuqian Cao Shiyu Wang Numerical and Experimental Studies on Nonlinear Dynamics and Performance of a Bistable Piezoelectric Cantilever Generator Shock and Vibration |
| title | Numerical and Experimental Studies on Nonlinear Dynamics and Performance of a Bistable Piezoelectric Cantilever Generator |
| title_full | Numerical and Experimental Studies on Nonlinear Dynamics and Performance of a Bistable Piezoelectric Cantilever Generator |
| title_fullStr | Numerical and Experimental Studies on Nonlinear Dynamics and Performance of a Bistable Piezoelectric Cantilever Generator |
| title_full_unstemmed | Numerical and Experimental Studies on Nonlinear Dynamics and Performance of a Bistable Piezoelectric Cantilever Generator |
| title_short | Numerical and Experimental Studies on Nonlinear Dynamics and Performance of a Bistable Piezoelectric Cantilever Generator |
| title_sort | numerical and experimental studies on nonlinear dynamics and performance of a bistable piezoelectric cantilever generator |
| url | http://dx.doi.org/10.1155/2015/692731 |
| work_keys_str_mv | AT kangkangguo numericalandexperimentalstudiesonnonlineardynamicsandperformanceofabistablepiezoelectriccantilevergenerator AT shuqiancao numericalandexperimentalstudiesonnonlineardynamicsandperformanceofabistablepiezoelectriccantilevergenerator AT shiyuwang numericalandexperimentalstudiesonnonlineardynamicsandperformanceofabistablepiezoelectriccantilevergenerator |