FOR 1087: Damping Effects in Machine Tools

如今，随着新的高度动态和灵活的加工任务的出现，对机床的动态需求正在以算术式增长。机床的性能往往会因机床的不良动态行为引起的振动现象而降低。目前，机床动态性能的可靠测定只能在实际样机上借助计量调查进行。随后的改进动态性能的措施在机床的开发中涉及严重的时间和费用。为此，近年来，借助虚拟样机来确定激动人心的工具的动态行为正日益成为制造商关注的焦点。通过使用高度开发的软件解决方案和高性能处理器，可以正确地计算机床结构的动态特性。然而，大多数计算结果都是有缺陷的。究其原因，既不了解机械部件的减振特性，又缺乏有效的模型和参数。研究单位的目标是根据最重要的机械部件的减振性能来分析它们。基于广泛的测量和合适的模型来描述仿真中的阻尼，该项目将为改进对机床动态性能的预测奠定基础。

Todays dynamic demand on machine tools is increasing arithmetically with new highly dynamic and flexible machining tasks. The performance of machine tools is often diminished by vibration phenomena which are caused by adverse dynamic machine behaviour. Currently the reliable determination of the dynamic behaviour of machine tools can only be performed on real prototypes with the help of metrological investigations. Subsequent measures to improve the dynamic behaviour represent a serious time and expense involved in the development of machine tools. For this reason, the determination of the dynamic behaviour of exciting tools with the help of virtual prototypes in recent times is increasingly becoming the focus of manufacturers. By the use of highly developed software solutions and high performance processors the dynamic behaviour of the machine tools structure can be calculated properly. Nevertheless most calculated results are defective. The reason can be find in the fact, that there is no knowledge about the damping behaviour of the machines components and the lack of capable models and parameters. The Research Units target is to analyse the most important machine-components according to their damping behaviour. Based on extensive measurements and suitable models to describe damping in the simulation the project will establish a basis to improve the forecast of the dynamical behaviour of machine tools.