Demonstration of vibration control using a compliant parallel arm mechanism
Demonstration of vibration control using a compliant parallel arm mechanism
复制标题
使用柔顺平行臂机构进行振动控制的演示
DOI：
10.1177/0306419019887140
复制
发表时间：
2019
影响因子：
1.4
通讯作者：
T. Johns
中科院分区：
文献类型：
--
作者：
Ayse Tekes;T. Utschig;T. Johns
由于交钥匙系统价格昂贵且需要大量的实验室空间，因此对小型、便携、低成本的工程本科学生实验室设备的需求仍然存在。我们提出了一种新的柔性机构，向本科生展示振动控制的基本原理。该机构由一个平动的两自由度系统组成，该系统使用连接主质量和次质量的初始直无固定柔性梁。一个线性驱动器连接到主质量，两个激光位移传感器用于记录每个质量的位移。在保持振幅不变的情况下，通过调整强迫频率来控制主、次质量位移。机构的所有部件都是三维打印的，以降低成本。该设备本身的成本不到5美元，加上执行器和数据采集，总成本为1300美元。该机制向32名机械动力学与振动专业的本科生进行了演示，这些学生分为两个课程部分。使用学生学习成果评估调查工具收集有关学生学习经验的反馈。结果表明总体反馈是积极的，学生们强调了使用MATLAB来控制系统和分析结果的价值，将与现实世界应用程序的联系纳入学习活动，以及学习经验的动手性质。
There is still a demand for compact, portable, low-cost laboratory equipment for undergraduate engineering students, since turn-key systems are expensive and require substantial lab space. We propose a novel compliant mechanism demonstrating the fundamentals of vibration control to undergraduate engineering students. The mechanism consists of a translational two-degrees-of-freedom system using initially straight fixed-free flexible beams connected to primary and secondary masses. A linear actuator is connected to the primary mass and two laser displacement sensors are utilized to record displacement of each mass. Primary and secondary mass displacements are controlled by adjusting the forcing frequency while keeping the amplitude constant. All parts of the mechanism are three-dimensional printed to reduce cost. The cost of the device itself is less than $5, and with the actuator and data acquisition the total cost is $1300. The mechanism was demonstrated to 32 undergraduate Machine Dynamics and Vibrations students divided into two course sections. Feedback on the student learning experience was collected using the Student Assessment of Learning Gains survey instrument. Results indicate positive overall feedback, with students highlighting the value of using MATLAB to control the system and analyze results, the connections to real-world applications incorporated into the learning activity, and the hands-on nature of the learning experience.
用于教育应用的 3D 打印触觉设备
DOI：
10.1109/haptics.2016.7463166
发表时间：
2016
期刊：
IEEE Haptics Symposium
影响因子：
--
作者：
Martinez, Melisa Orta;Morimoto, Tania K.;Taylor, Annalisa T.;Barron, Aaron C.;Pultorak, J. D.;Wang, Jeanny;Calasanz-Kaiser, Agnes;Davis, Richard Lee;Blikstein, Paulo;Okamura, Allison M.
通讯作者：
Okamura, Allison M.