Analysis, optimization and synthesis of compliant linkage mechanisms for ultra-precision applications
超精密应用顺应连杆机构的分析、优化和综合
基本信息
- 批准号:258176829
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2014
- 资助国家:德国
- 起止时间:2013-12-31 至 2021-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Flexure hinges are used as material coherent revolute joints in compliant linkage mechanisms for ultra-precision applications. In this case, the requirements for the precision are in the range of nanometers or angular subseconds. Compliant mechanisms are often synthetized by the substitution of rigid-body mechanisms. There is a need for research, because the influence of the concrete constructional design on the kinematic behavior has not been investigated in literature so far with the required resolution. Mostly flexure hinges with basic cut-out geometries are used. Therefore, compliant mechanisms based on these flexure hinges show a limited motion range and path accuracy. To overcome these limitations, in existing approaches the number of joints is increased in the kinematic chain of the mechanism, while there are no studies on the optimization of the flexure hinge contour with respect to the design of monolithic mechanisms. Thus, the inadequate knowledge of the kinematic properties limits advances in modern ultra-precise applications claiming for both highest precision and significantly increased motion ranges.The goal of this project is the development of fundamentals for the synthesis of compliant mechanisms with optimized flexure hinges. As the focal point of the first project phase, specifically the influence of the hinge contour on the mechanism properties has been investigated in comparison to the rigid-body counterpart. The investigations have shown that polynomial flexure hinges, which are directly optimized in the mechanism, are advantageous. Compared to conventional hinge contours polynomial flexure hinges allow a simultaneous increase of the range of motion and the precision. An additional improvement can be achieved by the application of different flexure hinges in one mechanism and by an appropriate design of the hinge orientation and of the coupler geometry as well. Based on the results of the first project phase, additional research is needed regarding the geometric design of monolithic micro and nanopositioning systems with macro dimensions. Here, the focus is on the further development of a novel synthesis method based on the rotation angles of each hinge, which is more precise compared to rigid-body model. It allows the goal-oriented design of the compliant mechanism with consideration of the influence of the scaling of spatial positioning systems.Compared to the current state of research, particularly the aim to increase both, the precision and the stroke of compliant mechanisms is a new approach. Thus, the project contributes to the development of a multi-scale synthesis method for spatial compliant linkage mechanisms, which considers the degree of freedom of the mechanism and the integration of the drive into the position system. The results will be verified at two prototypes with different scaling. Finally, design guidelines for the further use in the ultra-precision technology will be formulated.
柔性铰链是超精密柔性连杆机构中的材料共格转动关节。在这种情况下,对精度的要求在纳米或角亚秒的范围内。柔性机构通常是通过替代刚体机构来综合的。有必要进行研究,因为迄今为止,在文献中还没有研究过混凝土结构设计对运动学行为的影响。大多数情况下,使用具有基本切口几何形状的柔性铰链。因此,基于这些柔性铰链的柔顺机构显示出有限的运动范围和路径精度。为了克服这些限制,在现有的方法中,关节的数量增加的机构的运动链,而没有研究的柔性铰链轮廓相对于整体机构的设计的优化。因此,不充分的知识的运动特性限制了现代超精密应用的进步,要求最高的精度和显着增加的运动范围。本项目的目标是开发的基本原则,用于优化柔性铰链的柔顺机构的合成。作为第一个项目阶段的重点,特别是铰链轮廓对机构性能的影响进行了研究,与刚体对应。研究表明,多项式柔性铰链,直接优化的机构,是有利的。与传统的铰链轮廓相比,多项式柔性铰链允许同时增加运动范围和精度。通过在一个机构中应用不同的柔性铰链以及通过铰链取向和耦合器几何形状的适当设计,可以实现附加的改进。根据第一阶段的项目结果,需要对宏观尺寸的单片微纳定位系统的几何设计进行更多的研究。在这里,重点是进一步发展的一种新的综合方法的基础上的旋转角度的每个铰链,这是更精确的刚体模型。该方法允许以目标为导向设计柔顺机构,同时考虑空间定位系统的尺度变化对柔顺机构的影响,相对于目前的研究现状,特别是以提高柔顺机构的精度和行程为目标,是一种新的方法。因此,该项目有助于空间柔性连杆机构的多尺度综合方法的发展,该方法考虑了机构的自由度和驱动器集成到位置系统中。结果将在两个不同比例的原型上进行验证。最后,将制定进一步用于超精密技术的设计指南。
项目成果
期刊论文数量(7)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
High-precision and large-stroke XY micropositioning stage based on serially arranged compliant mechanisms with flexure hinges
- DOI:10.1016/j.precisioneng.2021.02.001
- 发表时间:2021-07-05
- 期刊:
- 影响因子:3.6
- 作者:Graeser, Philipp;Linss, Sebastian;Theska, Rene
- 通讯作者:Theska, Rene
Theoretical and experimental investigation of performance characteristics and design aspects of cross-spring pivots
- DOI:10.1016/j.ijsolstr.2019.08.023
- 发表时间:2020-03
- 期刊:
- 影响因子:3.6
- 作者:L. Goncalves Junior;R. Theska;H. Lepikson;A.S. Ribeiro Junior;S. Linß;P. Gräser
- 通讯作者:L. Goncalves Junior;R. Theska;H. Lepikson;A.S. Ribeiro Junior;S. Linß;P. Gräser
A Novel Planar Two-Axis Leaf-Type Notch Flexure Hinge with Coincident Rotation Axes and Its Application to Micropositioning Stages
一种新型旋转轴重合的平面两轴叶片式凹口柔性铰链及其在微定位平台中的应用
- DOI:10.1007/978-3-030-61652-6_1
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Gräser;Torres;Kaletsch;Theska;Zentner
- 通讯作者:Zentner
Non-linear analytical modeling of planar compliant mechanisms
- DOI:10.1016/j.mechmachtheory.2020.104067
- 发表时间:2021-01-01
- 期刊:
- 影响因子:5.2
- 作者:Henning, Stefan;Linss, Sebastian;Zentner, Lena
- 通讯作者:Zentner, Lena
Characterization of Thin Flexure Hinges for Precision Applications Based on First Eigenfrequency
- DOI:10.1007/978-3-030-61652-6_2
- 发表时间:2020-11
- 期刊:
- 影响因子:0
- 作者:M. Darnieder;Felix Harfensteller;P. Schorr;Moritz Scharff;S. Linß;R. Theska
- 通讯作者:M. Darnieder;Felix Harfensteller;P. Schorr;Moritz Scharff;S. Linß;R. Theska
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Professor Dr.-Ing. René Theska其他文献
Professor Dr.-Ing. René Theska的其他文献
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{{ truncateString('Professor Dr.-Ing. René Theska', 18)}}的其他基金
Scientific Fundamentals for the Realization and Measurement of Small Torques - Development of a Torque Standard Machine for Small Torques with Reduced Uncertainty - DEBRATOR 2
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223507020 - 财政年份:2012
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Research Grants
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Low side-effect fine adjustment systems for ultra-precision instruments in hermetically sealed rooms
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495227621 - 财政年份:
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