An XY theta(z) Flexure Mechanism with Optimal Stiffness Properties
文献类型：会议论文
| 作者 | Lum, Guo Zhan; Minh Tuan Pham; Teo, Tat Joo; Yang, Guilin; Yeo, Song Huat; Sitti, Metin |
| 出版日期 | 2017 |
| 会议日期 | JUL 03-07, 2017 |
| 关键词 | OPTIMIZATION METHOD PARALLEL MECHANISM OF-FREEDOM DESIGN |
| 英文摘要 | The development of optimal XY theta(z) flexure mechanisms, which can deliver high precision motion about the z-axis, and along the x-and y-axes is highly desirable for a wide range of micro/nano-positioning tasks pertaining to biomedical research, microscopy technologies and various industrial applications. Although maximizing the stiffness ratios is a very critical design requirement, the achievable translational and rotational stiffness ratios of existing XY theta(z) flexure mechanisms are still restricted between 0.5 and 130. As a result, these XY theta(z) flexure mechanisms are unable to fully optimize their workspace and capabilities to reject disturbances. Here, we present an optimal XY theta(z) flexure mechanism, which is designed to have maximum stiffness ratios. Based on finite element analysis (FEA), it has translational stiffness ratio of 248, rotational stiffness ratio of 238 and a large workspace of 2.50 mm x 2.50 mm x 10 degrees. Despite having such a large workspace, FEA also predicts that the proposed mechanism can still achieve a high bandwidth of 70 Hz. In comparison, the bandwidth of similar existing flexure mechanisms that can deflect more than 0.5 mm or 0.5 degrees is typically less than 45 Hz. Hence, the high stiffness ratios of the proposed mechanism are achieved without compromising its dynamic performance. Preliminary experimental results pertaining to the mechanism's translational actuating stiffness and bandwidth were in agreement with the FEA predictions as the deviation was within 10%. In conclusion, the proposed flexure mechanism exhibits superior performance and can be used across a wide range of applications. |
| 会议录出版者 | IEEE ASME International Conference on Advanced Intelligent Mechatronics |
| 学科主题 | Engineering ; Robotics |
| ISSN号 | 2159-6255 |
| ISBN号 | 978-1-5090-6000-9 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/23377]  |
| 专题 | 会议专题 会议专题_会议论文 |
| 推荐引用方式 GB/T 7714 | Lum, Guo Zhan,Minh Tuan Pham,Teo, Tat Joo,et al. An XY theta(z) Flexure Mechanism with Optimal Stiffness Properties[C]. 见:. JUL 03-07, 2017. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。