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

当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力系统中是相关的。一个可能的目标是通过调整界面特性来积极影响振动负载系统的动态行为，例如，可以减少或完全避免临界振幅的增加。在真实感测试领域，需要模拟真实的环境的界面特性，以获得测试对象有意义的行为。该项目的重点是动态自适应阻抗元件的调查。这些作为测试工程中的接口元件，能够再现随时间变化的力学边界条件。作为一个例子，将确定在动力工具和飞机客舱验证的非常不同的领域的适用性和可移植性。在电动工具领域，动态自适应阻抗元件可以作为人机交互的替代模型。这种相互作用在时间上是瞬时的，因此需要替代模型的适应性，以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中，可以通过测试对象到测试台的不同连接特性的多稳态表示来加速测试活动，并且能够进行大的实验参数研究。动态自适应阻抗元件的研究首先要确定系统动态测试的要求。通过自适应刚度和阻尼元件的系统开发以及它们与动态自适应阻抗元件的组合，将有可能在测试中表示确定的操作状态和操作状态转换。在选择目录和附带指南的帮助下，将确保可转移性，以支持该领域的进一步研究。

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.