Self-excited burst light drive structure and self-control method thereof

Through the photothermal response characteristics of the liquid crystal elastomer sheet, the light-driven curvature and tension are calculated, and a control method for the autonomous jump process is established, which solves the problem that the explosive structure is difficult to reset after a single burst, and realizes the autonomous control of the light-driven structure. It is suitable for sensors, electronic equipment and automatic control.

CN120508190BActive Publication Date: 2025-09-19ANHUI UNIVERSITY OF ARCHITECTURE
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Patent Information

Application Number
CN202510972451.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-15
Publication Date
2025-09-19
Estimated Expiration
2045-07-15

AI Technical Summary

Technical Problem

Existing explosive structures are difficult to reset autonomously after a single explosion and need to rely on manual or electrical signal triggering, which limits their stability and reliability in complex dynamic environments.

Method used

By adopting the photothermal response characteristics of liquid crystal elastomer sheets and calculating the light-driven curvature and the tension under photothermal drive, a control method for the autonomous jump process is established. The relationship between the contraction strain and temperature change of the liquid crystal elastomer sheet under light conditions is used to achieve autonomous control.

Benefits of technology

The light-driven structure can form a continuous and periodic autonomous jumping process under stable light, reducing dependence on external intervention, improving the stability and reliability of the structure, and is suitable for sensors, electronic equipment and automation control fields.

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Abstract

The present invention relates to the technical field of light-driven structure design, which solves the technical problem that traditional burst structures stop after a single burst and need to rely on manual or electrical signal triggering to reset, making it difficult to achieve continuous autonomous action. In particular, it relates to a self-excited burst light-driven structure and its self-control method, and the light-driven structure includes a protective shell, a control component, and a fixing part. The liquid crystal elastomer sheet in the composite sheet has a photothermal response characteristic, and when subjected to external photothermal stimulation, it will shrink and deform, driving the free end of the composite sheet to bend to one side and enter the non-illuminated area, and then dissipate heat to recover and re-enter the illuminated area to achieve a self-sustaining process. The present invention can maintain an autonomous, multiple, and continuous burst process under constant light stimulation, and has the advantages of simple structure, sensitive response, and energy self-sustaining. It provides a new solution for the development of efficient and autonomous light-driven burst devices, showing greater research value and application potential.
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