DynaVal - Dynamically Adaptive Impedance Elements for Vibration Control in Validation Environments

在动态测试中验证技术系统时，技术系统与测试环境的耦合会影响测试结果。这种影响在不同的动态系统中是相关的。一个可能的目标是通过调整界面特性来积极影响振动加载系统的动态行为，例如，可以减少或完全避免临界振动幅度的增加。在现实测试领域，为了获得有意义的测试对象行为，需要模拟真实环境的接口属性。本项目主要研究动态自适应阻抗元件。这些作为测试工程中的界面元素，能够重现随时间变化的机械边界条件。在电动工具和飞机客舱验证的不同领域的适用性和可转移性将被确定为一个例子。在电动工具领域，动态自适应阻抗单元可以作为替代模型来表示人机交互。这种相互作用在时间上是短暂的，因此需要替代模型的适应性，以便能够表示不同的操作条件。利用动态自适应阻抗元件，在飞机座舱元件研究领域可以通过对测试对象与试验台的不同连接特性进行多平稳表示来加快测试活动，并实现大型实验参数研究。动态自适应阻抗元件的研究首先涉及识别系统动态测试中的需求。通过系统地开发自适应刚度和阻尼元件，并将它们与动态自适应阻抗元件相结合，将有可能表示测试中确定的工作状态和工作状态转换。在选择目录和随附准则的帮助下，将采取有条不紊的办法，确保可转移性，以支持这一领域的进一步研究。

When validating technical systems in dynamic tests, the coupling of the technical system to the test environment can influence the test results. This influence is relevant in different dynamic systems. One possible objective is to positively influence the dynamic behavior of vibrationally loaded systems by means of adjusted interface properties, so that, for example, critical vibration amplitude increases can be reduced or completely avoided. In the field of realistic testing, it is necessary to simulate the interface properties of the real environment to obtain a meaningful behavior of the test object. The proposed project focuses on the investigation of dynamically adaptive impedance elements. These serve as interface elements in test engineering to be able to reproduce time varying mechanical boundary conditions. The applicability and transferability in the very different areas of power tool and aircraft cabin validation will be determined as an example. In the area of power tools, dynamically adaptive impedance elements can be used as a substitute model to represent the human-machine interaction. This interaction is transient in time and therefore requires an adaptability of the substitute model to be able to represent different operating conditions. With dynamically adaptive impedance elements, it is possible in the field of aircraft cabin element investigation to accelerate the test activities by multi-stationary representation of different connection properties of the test object to the test bench and to enable large experimental parameter studies. Research into dynamically adaptive impedance elements involves first identifying the requirements in dynamic testing of systems. Through a systematic development of adaptive stiffness and damping elements and their combination to dynamically adaptive impedance elements, it will be possible to represent the determined operating states and operating state transitions in testing. In a methodical approach with the help of a selection catalog and accompanying guidelines, transferability will be ensured to support further research in this field.