Friction in feed drives of machine tools: investigation, modeling and validation
Friction in feed drives of machine tools: investigation, modeling and validation
复制标题
机床进给驱动中的摩擦：调查、建模和验证
DOI：
10.1007/s11740-016-0678-3
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Rebelein
中科院分区：
文献类型：
--
作者：
Rebelein
为了满足对机床性能日益增长的要求，需要对机床在开发阶段的动态行为进行虚拟仿真和优化。虽然质量和刚度特性可以足够精确地模拟，但通常没有合适的阻尼模型可用于机床部件。常用的线性阻尼模型主要是线性滞后或粘性模型。然而，线性阻尼模型往往是不适当的，以反映所需的精度在机床中发生的非线性效应。这些非线性的原因主要是进给驱动部件中的摩擦力。为了解决这些不足，本文对进给传动部件的摩擦力进行了全面的研究，建立了摩擦力模型，并与简化的柔性多体系统耦合。利用所识别的摩擦模型，可以非常精确地再现所测量的摩擦曲线。耦合的、简化的柔性多体模型可以模拟非线性效应并高精度地预测机床的动态行为。从而为机床的精确虚拟仿真迈出了重要的一步。
Virtual simulation and optimization of the dynamic behavior of machine tools in the development phase is required to satisfy the increasing demands on machine tool performance. While mass and stiffness properties can be simulated with sufficient accuracy, often no suitable damping models are available for the components of machine tools. The commonly used linear damping models are predominantly linear hysteretic or viscous models. However, the linear damping models are often not appropriate to reflect the occurring nonlinear effects in machine tools with the required accuracy. The reason for these nonlinearities are predominantly the friction forces in feed drive components. To resolve these deficits, the friction in feed drive components is comprehensively investigated in this paper, models for friction forces are identified and coupled with a reduced, flexible multi-body system. With the identified friction models the measured friction curves can be reproduced very precisely. The coupled, reduced, flexible multi-body model allows to simulate the nonlinear effects and to predict the dynamic behavior of machine tools with high accuracy. Consequently, a further important step towards accurate virtual simulation of machine tools is made.
铸造机床部件动态模型的不确定性和误差的识别和评估
DOI：
10.1007/s11740-013-0506-y
发表时间：
2014
期刊：
Production Engineering
影响因子：
--
作者：
Schwarz
通讯作者：
Schwarz
影响因子：
4.1
作者：
Brecher;Bäumler
通讯作者：
Bäumler
并联运动静态和动态特性的计算机辅助优化
DOI：
--
发表时间：
2002
期刊：
影响因子：
--
作者：
H. Weule;A. Albers;A. Haberkern;D. Emmrich;W. Neithardt
通讯作者：
W. Neithardt