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Self-Sustained Oscillation of a Photothermal-Responsive Pendulum under Steady Illumination
- Source :
- Mathematical Problems in Engineering, Vol 2021 (2021)
- Publication Year :
- 2021
- Publisher :
- Hindawi Limited, 2021.
-
Abstract
- Self-sustained oscillation has the advantages of harvesting energy from the environment and self-control, and thus, the development of new self-oscillating systems can greatly expand its applications in active machines. In this paper, based on conventional photothermal shrinkable material or photothermal expansive material, a simple pendulum is proposed. The light-powered self-sustained oscillation of the simple pendulum is theoretically studied by establishing a dynamic model of the photothermal-responsive pendulum. The results show that there are two motion modes of the simple pendulum, which are the static mode and the oscillation mode. Based on the photothermal-responsive model, this paper elucidates the mechanism of the self-excited oscillation. The condition for triggering self-excited oscillation is further studied. In addition, the influence of the system parameters on the amplitude and frequency is also obtained. This study may have potential applications in energy harvesting, signal monitoring, and soft machines.
- Subjects :
- Physics
Article Subject
Oscillation
General Mathematics
General Engineering
Mode (statistics)
Pendulum
02 engineering and technology
Photothermal therapy
021001 nanoscience & nanotechnology
Engineering (General). Civil engineering (General)
01 natural sciences
Mechanism (engineering)
Amplitude
Control theory
0103 physical sciences
QA1-939
TA1-2040
010306 general physics
0210 nano-technology
Energy harvesting
Energy (signal processing)
Mathematics
Subjects
Details
- Language :
- English
- ISSN :
- 15635147
- Volume :
- 2021
- Database :
- OpenAIRE
- Journal :
- Mathematical Problems in Engineering
- Accession number :
- edsair.doi.dedup.....dc8ee4e23daa987974017e4e68d766ed