Identification method for damping parameters of roller linear guides
Identification method for damping parameters of roller linear guides
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DOI：
10.1007/s11740-012-0400-z
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发表时间：
2012-07
期刊：
影响因子：
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通讯作者：
C. Brecher;M. Fey;S. Bäumler
中科院分区：
文献类型：
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作者：
C. Brecher;M. Fey;S. Bäumler
在当今机床的设计阶段，虚拟样机可以节省成本和时间。除了静力特性的计算外，动力特性的预测也变得越来越重要，但计算结果往往不尽如人意。基本上，这是由于缺乏关于机床部件的减振特性及其建模的知识。在德国研究基金会(DFG)的一个项目中，研究了滚子直线导轨的减振问题。用于识别部件的阻尼值的测量方法利用仿真模型将机械部件的阻尼值与试验台本身的阻尼值分开，这是一种最先进的方法。本文说明了这种测量方法的扩展版本，它可以更精确地隔离部件的阻尼。此外，还给出了三种不同预紧级的滚子直线导轨的第一组结果。
A virtual prototype can save cost and time during the design phase of today’s machine tools. Beside the calculation of the static behavior the prediction of the dynamic behavior gets more and more important, but the calculation results are often not satisfactory. Basically this is caused by a lack of knowledge about damping properties of machine tool components and their modeling. Within a project of the German Research Foundation (DFG) the damping of roller linear guides is investigated. The measuring method used to identify the components’ damping utilizes a simulation model to separate the damping of the machine component from the damping of the test bench itself and is state of the art. This article illustrates an extended version of this measuring method which isolates the components’ damping more precisely. Furthermore a first set of results for three types of roller linear guides with different preload classes is presented.