Self-Sustained Oscillation of a Photothermal-Responsive Pendulum under Steady Illumination | Zendy

Dali Ge | Zendy; Peibao Xu | Zendy; Kai Li | Zendy

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Self-Sustained Oscillation of a Photothermal-Responsive Pendulum under Steady Illumination

Author(s) -

Dali Ge,

Peibao Xu,

Kai Li

Publication year - 2021

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2021/5531530

Subject(s) - oscillation (cell signaling) , pendulum , self oscillation , photothermal therapy , control theory (sociology) , signal (programming language) , photothermal effect , expansive , physics , materials science , mechanics , acoustics , computer science , optics , chemistry , artificial intelligence , biochemistry , compressive strength , control (management) , quantum mechanics , thermodynamics , programming language

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.

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