可编程声学子的端到端反向设计,通过元表面同时控制力和扭矩
Yu Liu1, Hao-Wen Dong2, Xue Jiang3
1Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China.
Science advances
|September 10, 2025
概括
研究人员开发了一种新的反向设计方法,用于使用编码元表面的声学子. 这使得精确的,多个自由度的控制无接触操纵颗粒,克服了以前的限制.
科学领域:
- 声学操纵是一种声学操纵.
- 地表表面设计设计.
- 精密工程是指精密的工程.
背景情况:
- 声学针利用声波辐射力量进行非接触式操纵.
- 目前多维操纵的局限性源于缺乏系统的设计方法.
- 在复杂的条件下,实现对多度自由度的力和扭矩的精确控制仍然具有挑战性.
研究的目的:
- 为声学子开发一个端到端的反向设计方法.
- 建立一个双重目标,双重规模的优化范式,用于声场生成.
- 为了实现个体粒子的定制,多度自由度的非接触式操纵.
主要方法:
- 开发了一种基于编码元表面的声学子的反向设计方法.
- 实施了一种双重目标,双重规模的优化模式.
- 共同优化微尺度相调和传输效率使用合物理模型,考虑中等尺度粒子动力学.
主要成果:
- 成功优化了具有特定声响特征的超表面配置.
- 实现了非接触式,多度自由度的定制操纵单个粒子.
- 在稳定的悬挂和高频旋转条件下证明了精确的控制.
结论:
- 开发的反向设计框架为声学笔设计提供了一种系统的方法.
- 这种方法克服了多维操纵的局限性,实现了先进的控制.
- 在精密工程应用中提供适应性多尺度策略的实施途径.
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