Influence of Parameter Uncertainties on the Computation of Stability Lobe Diagrams

Influence of Parameter Uncertainties on the Computation of Stability Lobe Diagrams
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参数不确定性对稳定性波瓣图计算的影响

DOI:
10.1016/j.procir.2016.04.031
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发表时间:
2016
期刊:
Procedia CIRP
影响因子:
--
通讯作者:
Großmann
Großmann
中科院分区:
--
文献类型:
--
作者:
Löser;Großmann

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相似文献

为了预测切割操作的稳定性边界,需要建立过程作用力和机器动态行为的模型。模型参数的不确定性可能会导致稳定边界的预测值与实测值之间存在较大差异。在分析稳定性行为时,用随机参数进行大量模拟是考虑这些不确定性的一种可能方法。然而,这是一项耗时的任务。本文提出了一种基于频域稳定性分析的计算稳定波瓣图的置信度的时间效率方法。所需的计算时间与使用不同稳定性算法进行显式计算所需的工作量进行了比较。将置信度与实验确定的稳定性波瓣图进行了比较。
To predict stability boundaries of cutting operations models of process forces and dynamic machine behavior are required. Uncertainties of model parameters may lead to significant differences between predicted and measured stability boundaries. To run a lot of simulations with random parameters is a possible approach to take these uncertainties into account when analyzing the stability behavior. However, this is a time consuming task. This paper presents a time efficient method to provide confidence levels of computed stability lobe diagrams based on stability analysis in frequency domain. The required computational time is compared to the effort for an explicit calculation with different stability algorithms. The confidence levels are compared to experimentally determined stability lobe diagrams.
稳定性波瓣图的合成
DOI: 10.1007/978-3-642-32448-2_10
发表时间: 2013
影响因子: 14
作者:
K. Großmann;Michael Löser
通讯作者: Michael Löser