灰度DLP3D打印软机器人的Voxel设计
Mengjie Zhang1,2, Xiru Fan1,2, Le Dong1,2
1State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
概括
研究人员开发了一个新的框架来设计灰度3D打印软机器人. 该方法使用灰度尺度依赖模型和有限元素分析来创建具有可调节材料特性的复杂结构.
科学领域:
- 材料科学 材料科学 材料科学
- 机器人技术 机器人技术 机器人技术
- 增材制造 增材制造 增材制造
背景情况:
- 灰度数字光处理 (DLP) 打印允许通过灰度调来改变材料属性.
- 设计复杂的灰度DLP结构是具有挑战性的,因为声素级别的变化,非线性特性和复杂的几何形状.
研究的目的:
- 为灰度DLP打印软机器人开发设计和制造框架.
- 解决设计3D打印结构的复杂性,其材料性能在空间上有所不同.
主要方法:
- 结合了依赖灰度的超弹性构成模型和基于voxel的有限元素模型.
- 开发了一种多物理模型和实验方法,以验证voxels内部的转换度 (DoC) 变化.
主要成果:
- 该框架使软机器人的设计能够减少压力度.
- 在制造结构中实现可编程的多式联接运动.
- 验证了基于voxel的有限元素模型用于预测机械性能的准确性.
结论:
- 开发的框架促进了使用灰度DLP3D打印的功能性结构的综合设计和制造.
- 这种方法为创建复杂的软机器人和其他具有精确控制材料特性的功能组件提供了一条途径.
相关概念视频
Three-Dimensional Force System
In mechanical engineering, a three-dimensional force system is a system of forces acting in three dimensions, with forces applied along the x, y, and z coordinate axes. The three-dimensional force system is an important concept in mechanical engineering, as it allows engineers to understand and analyze the behavior of objects and structures in three dimensions. By understanding the forces acting on a system, engineers can design more efficient and effective mechanical systems that can withstand...
Plastic Deformations
It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
Plastic Deformations
Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their original...


