设计,分析和评估部驱动的离合器类型弹性执行器用于辅助步行
概括
通过外骨架可以改善老年人的运动能力. 一种新的离合式弹性执行器 (CEA) 显著降低了关节的电力需求,有助于更轻的外骨架设计.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 生物力学 生物力学
- 老年医学 老年医学
背景情况:
- 老年人下肢肌肉力量降低会损害运动能力和日常活动.
- 外骨架为老年人的流动性和社会参与提供了潜在的支持.
- 有效的外骨需要足够的行走扭矩和强大的人类外骨合.
研究的目的:
- 提出和评估一种新的离合式弹性执行器 (CEA),用于关节辅助外骨架.
- 评估CEA在辅助步行期间降低功耗方面的表现.
- 为微型和轻量级外骨架提供设计见解.
主要方法:
- 开发了一种离合式弹性执行器 (CEA),采用杆式关节机制来执行关节的执行.
- 建立了CEA的动力模型,分析了摇摆和姿势步行阶段.
- 进行模拟和测试实验,将CEA性能与刚性执行器 (RA) 进行比较.
主要成果:
- 与RA相比,CEA模拟显示,峰值功率减少了56.56%,平均功率减少了64.22%.
- 实验室测试证实了CEA的有效性,显示峰值功率降低了47.97%,平均功率下降了56.33%.
- 该CEA设计利用了步态的立场阶段,以有效地储存和释放能量.
结论:
- 拟议的CEA是老年人辅助外骨架中关节激活的可行解决方案.
- CEA技术显著降低了电力需求,使得外骨设计更紧,更轻.
- 这种驱动器设计为增强老年人的移动性和独立性提供了一个有希望的方向.
更多相关视频
相关概念视频
01:14Mechanical Efficiency of Real Machines
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
However, in reality, no machine can be truly ideal, and all of them experience some...
01:26PD Controller: Design
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...