生物灵感水上推进机制使用含有纤维复合材料的粘弹性,剪切加厚液体
Shunichi Kobayashi1,2, Kousuke Sugiyama2
1Institute for Fiber Engineering, Shinshu University, Ueda 386-8567, Japan.
Biomimetics (Basel, Switzerland)
|September 27, 2023
概括
研究人员使用剪切加厚液 (STF) 开发了一种新型纤维复合材料粘弹性. 与传统的弹性相比,这种创新的片材料提高了在水中的推进效率.
科学领域:
- 生物模拟学和机器人学
- 材料科学 材料科学 材料科学
- 流体动力学 流体动力学
背景情况:
- 灵感来自水生动物的弹性被用于推进.
- 传统的弹性面临的挑战是,在更高的振荡速度下,性增加.
- 可变刚度机制可以优化的性能,但增加复杂性.
研究的目的:
- 开发一种具有固有的可变刚性特性的新型片材料.
- 为了研究纤维STF复合的刚性的速度依赖性.
- 为了评估这些新型在各种水条件下的推进性能.
主要方法:
- 通过将纤维纳入剪切加厚液体 (STF) 来制造纤维复合材料粘弹性.
- 分析的结构性质和性作为振荡速度的函数.
- 在静水和均流量条件下对推进特性进行实验测试.
主要成果:
- 纤维STF复合翼表现出取决于速度的刚性.
- 与传统的弹性相比,在静水中表现出优越的推进能力.
- 在均的水流中实现了比弹性更高的自行行相当速度.
结论:
- 纤维-STF复合提供固有的可变刚性,简化机制和提高效率.
- 这种新型材料显示出对增强水产推进系统的巨大潜力.
- 这些发现表明了生物启发的水下机动技术有前途的新方向.
相关概念视频
Typical Model Studies
376
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
376
Buoyancy and Stability for Submerged and Floating Bodies
1.8K
In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...
1.8K


