A system for multi-dimensional experimental testing of disc-shaped drive train components

提出的大型研究设备为复杂技术系统在多维动态载荷和激励下的实验研究提供了可能。对旋转和振荡机械部件动态特性的虚拟模型进行验证，可以可靠地预测其多维振动。到目前为止，只能施加相应的必要激励，并且只能分别分析它们的作用。复杂技术产品中常见的组合载荷无法用普通设备在足够真实的条件下进行实验模拟。因此，模型验证通常是使用特定子系统及其组件的一维测试平台或使用整个机器来执行的。在第一种情况下，由于空间（非线性）叠加效应不能充分再现，只能形成部分验证的模型。因此，这些模型的转移及其在复杂系统中预测多维相互作用的适用性至少是值得怀疑的。在第二种情况下，将某些子系统内的影响与整个机器的影响所引起的现象分开是极其困难的。考虑到轻量化结构、能源和经济效率、可靠性等方面和趋势，拟议设备的收购使KIT能够为复杂驱动系统的开发提供独特的研究和验证环境。建议的设备将集成到现有的测试设施中，从而实现协同效应，降低建议的成本。工程（机械和电气工程中的设计、验证、建模）科学的不同领域之间的合作将由于拟议的大型研究设备的实现而得到显著加强。

The proposed large research equipment opens the possibility for experimental investigation of complex technical systems under multi-dimensional dynamic loading and excitation. Validating of virtual models of dynamic behaviour of rotating and oscillating machines’ components enables to reliably predict their multi-dimensional vibrations. So far, the corresponding necessary excitation could be applied and their effects could be analysed only separately. The combined loads usual in complex technical products couldn’t be experimentally simulated with common equipment in sufficiently realistic conditions. Hence, the model validation is usually performed either using one-dimensional test rigs for specific subsystems and their components or with the whole machine. Only partially validated models come into being in the first case, because the spatial (nonlinear) superposition effects cannot be sufficiently reproduced is such experiments. Consequently, the transfer of such models and their applicability for predicting of multi-dimensional interactions in a complex system are at least questionable. In the second case, it is extremely difficult to separate effects within certain subsystems from the phenomena evoked by the influences of the machine as a whole.Acquisition of the proposed equipment enables to rise up at KIT the unique research and validation environment for development of complex drive systems taking into account such aspect and trends as lightweight construction, energy and economic efficiency, reliability. The suggested equipment will be integrated in the existing testing facilities which enables to achieve synergetic effects reducing the costs of the proposal. Cooperation between different domains of engineering (design, validation, modelling in mechanical and electrical engineering) sciences will be significantly strengthened due to the realization of the proposed large research equipment.