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首页> 外文会议>Twelfth International Conference on Adaptive Structures and Technologies, Oct 15-17, 2001, University of Maryland >MODELLING AND DESIGN OF HIGH-LOAD ACTUATOR SYSTEMS IN ADAPTIVE STRUCTURES
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MODELLING AND DESIGN OF HIGH-LOAD ACTUATOR SYSTEMS IN ADAPTIVE STRUCTURES

机译：自适应结构中高负荷执行器系统的建模与设计

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Emphasis is placed on the problem of how to optimally design and realize high load smart actuators in adaptive structures. In this general context, primary focus is on concepts of vibration reduction using smart actuator systems made on the basis of piezoelectrica, magnetostric-tiva or other high-frequency materials. The paper deals with the modelling procedure starting with the general and concise identification of all characteristic parameters of the actuator system itself, of the actuator / structure coupling interface as well as of the local structural flexibilities in the close vicinity of the coupling points. With this complete set of characteristics the derivation of the structural dynamics equations of motion is possible. It is shown how these equations can be transformed without any loss of physical information and accuracy into the highly reduced modal space formulated in terms of only a small number of modal DOFs in the problem-related frequency range of interest. These modal equations establish the best possible and easy-to-use means for the parametric prediction and selection of the final positioning, design and structural embedment of the actuator system. Their formulation takes into account the full range of operation-related static and dynamic loads and of the actuator related requirements such as maximum stroke, force, strength and stiffness as well as minimum weight, size, and energy consumption. The main advantages of the design concept outlined in the paper have been demonstrated in the past by means of some successfully accomplished industrial projects.
机译：重点放在如何在自适应结构中优化设计和实现高负载智能执行器的问题上。在这种总体情况下，主要重点是使用基于压电，磁悬浮或其他高频材料制成的智能执行器系统来减少振动的概念。本文主要从对传动系统本身，传动/结构耦合界面以及耦合点附近局部结构柔韧性的所有特征参数的简明识别开始，进行建模程序。借助这一整套特性，可以推导出运动的结构动力学方程。它显示了如何将这些方程式转换为高度缩减的模态空间而又不损失任何物理信息和准确性，而该模态空间仅在感兴趣的与问题相关的频率范围内以少量模态自由度表示。这些模态方程为执行器系统的最终定位，设计和结构嵌入的参数预测和选择建立了最佳可行的方法。它们的公式考虑了与操作相关的静态和动态负载的全范围，以及与执行器相关的要求，例如最大行程，力，强度和刚度以及最小的重量，尺寸和能耗。过去已经通过一些成功完成的工业项目证明了本文概述的设计概念的主要优点。

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