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首页> 外文会议>Thirteenth International Conference on Adaptive Structures and Technologies; Oct 7-9, 2002; Potsdam, Germany >THE 'FISH-MOUTH' ACTUATOR: DESIGN ISSUES AND TEST RESULTS
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THE 'FISH-MOUTH' ACTUATOR: DESIGN ISSUES AND TEST RESULTS

机译：“鱼嘴”执行器：设计问题和测试结果

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The so-called fish-mouth actuator, developed at DLR in the framework of the Adaptive Wing project (ADIF), is a compact hybrid actuator based on the interaction of a shape-memory material and a composite flexible mechanism. The actuator offers a high effective strain (ratio between actuator's stroke and mounting dimension in the activation direction) and is therefore particularly interesting for shape control of thin surfaces. In the ADIF project, the actuator development was focused on the realisation of a wind-tunnel model for an adaptive wing with transonic bump. The actuator is designed and tested for a maximum stroke of 2 mm and a maximum force of 200 N. Its thickness (in activation direction) amounts to about 8 mm. If used with a feedback control system, it can reach a displacement precision of less than 1μm. More than 400 single actuators were built and tested; 84 of them were integrated in the final system. In the paper, several design issues are discussed which are typical for such fully coupled hybrid systems. The design analysis and procedure used for the actuator development is described and a choice of experimental results is shown and discussed. The reported design philosophy and the related discussion includes many concepts and solutions of general relevance which can be adopted for the development of similar hybrid actuators in the future.
机译：DLR在自适应机翼项目（ADIF）的框架下开发的所谓鱼嘴致动器是一种紧凑的混合致动器，其基于形状记忆材料和复合柔性机构的相互作用。该执行器具有很高的有效应变（执行器的行程与安装尺寸在激活方向上的比率），因此对于薄表面的形状控制尤为有趣。在ADIF项目中，执行器的开发重点是为带有跨音速碰撞的自适应机翼实现风洞模型。执行器经过设计和测试，最大行程为2 mm，最大力为200N。其厚度（沿激活方向）约为8 mm。如果与反馈控制系统一起使用，它的位移精度可以小于1μm。建造并测试了400多个单执行器；其中84个已集成到最终系统中。在本文中，讨论了几种设计问题，这些问题对于这种完全耦合的混合动力系统是典型的。描述了用于执行器开发的设计分析和程序，并显示和讨论了实验结果的选择。报告的设计理念和相关讨论包括许多具有普遍意义的概念和解决方案，这些概念和解决方案可在将来用于类似混合动力执行器的开发中。

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