横截面4D打印:升级具有差异化材料特性的自成型结构,灵感来自大花 (Pinguicula grandiflora)
Ekin Sila Sahin1,2, Tiffany Cheng1,2, Dylan Wood1,2
1Institute for Computational Design and Construction (ICD), University of Stuttgart, 70174 Stuttgart, Germany.
Biomimetics (Basel, Switzerland)
|June 27, 2023
概括
研究人员开发了一种新的4D打印方法,使用旋转的双层来创建复杂的,自我塑造的结构. 这种技术可以精确控制机械性能,并扩大生物灵感设计的可能性.
科学领域:
- 添加剂制造 添加剂制造 添加剂制造
- 生物启发工程 生物启发工程
- 材料科学 材料科学 材料科学
背景情况:
- 基于挤出的4D打印模仿了植物结构,但受到层次制造的限制.
- 现有的方法往往简化了复杂的生物灵感设计,比如松尺度的双层结构.
研究的目的:
- 引入一种新的4D打印方法,用于在横截面中创建自成形单材料系统.
- 开发一个计算工作流程,用于编程,模拟和制造具有可调整机械性能的差异化截面.
- 通过使用4D打印结构来研究生物灵感的抑郁形成,灵感来自于*Pinguicula grandiflora*.
主要方法:
- 通过旋转双层的打印轴,开发了一种4D打印技术.
- 创建了一个用于设计和模拟的计算工作流.
- 制造并测试了具有多种深度层的生物灵感结构,以研究低谷形成.
主要成果:
- 能够设计和制造具有差异化横截面的自成形单材料系统.
- 通过横截面打印来证明对多层机械性能的控制.
- 在生物灵感的4D打印结构中成功研究了陷的形成.
结论:
- 横截面4D打印扩大了超越XY平面的生物灵感双层机制的设计可能性.
- 这种方法提供了对自塑性质的增强控制.
- 为大规模,高分辨率可编程4D打印结构铺平了道路.
相关概念视频
01:18Dihybrid Crosses
Overview
02:19Morphogenesis
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
02:16Light Acquisition
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
02:27Trihybrid Crosses
Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal chance to...
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal chance to...