Dynamical characteristic validation of motorized CFRP spindle unit based on receptance coupling
Dynamical characteristic validation of motorized CFRP spindle unit based on receptance coupling
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基于接收耦合的CFRP电主轴单元动态特性验证
DOI：
10.1016/j.ymssp.2022.109028
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发表时间：
2022
影响因子：
8.4
通讯作者：
Kakinuma Yasuhiro
中科院分区：
文献类型：
--
作者：
Kato Makoto;Kono Daisuke;Kakinuma Yasuhiro
碳纤维增强塑料（CFRP）用于机床部件，具有高比刚度、高阻尼性能和低热膨胀性能；此外，它还与特定比例的金属结合在一起，使现有设备和机器设计能够使用。CFRP主轴轴的开发在堆叠顺序上具有设计灵活性。主轴单元动力学的改进和分析是实现高生产率加工的必要条件，需要计算成本更低的动刚度预测方法来估计和优化设计方案的机器性能。因此，本文提出了CFRP与钢复合材料等效物理性能的参数辨识，采用一维Timoshenko梁模型的一般解。采用多点广义接受耦合的方法，根据实际开发阶段，设计了4种不同的CFRP主轴轴解析模型，以观察模型的形状。将主轴模型的频响函数和模态振型与有限元方法和冲击试验结果进行了比较。反映碳纤维布在旋转轴上适用位置的主轴轴模型对固有频率和模态振型具有足够的估计精度。反映堆叠顺序的主轴轴模型对CFRP参数化误差具有鲁棒性。采用主轴模型和轴承模型相结合的方法对CFRP电主轴单元进行建模；实验研究了主轴停止转动后热辐射作用下轴承的动力学特性。在主轴单元模型上，比较了钢主轴轴模型和几种相同尺寸的CFRP布置；CFRP主轴单元产生了更大的动刚度。讨论了碳纤维布的应用布局和制造要求，进一步提高了结构的动刚度。
Carbon fiber reinforced plastic (CFRP) is used in machine tool components to provide high specific stiffness with high damping properties and low thermal expansion; further, it is combined with metals in specific ratios to enable the use of existing equipment and machine design. The development of CFRP spindle shafts has design flexibility in the stacking sequence. The improvement and analysis of spindle unit dynamics are essential for achieving high productivity in machining, and prediction methods for dynamic stiffness with lower computational costs are required to estimate and optimize the machine performance of the design proposals. Therefore, parameter identification for the equivalent physical properties of composite materials with CFRP and steel was proposed in this paper to use general solutions for a one-dimensional Timoshenko beam model. Four different analytical models of the CFRP spindle shaft following the actual development phase were designed via generalized receptance coupling to multi points in order to observe the model shapes. The frequency response functions and mode shapes of the spindle shaft models were compared with those of finite element methods and impact tests. The spindle shaft model reflecting the applicable location of CFRP in the rotational axis demonstrates a sufficient estimation accuracy for natural frequencies and mode shapes. The spindle shaft model reflecting the stacking sequence demonstrates robustness against the parameterization errors of the CFRP. A motorized CFRP spindle unit was modeled by combining a spindle shaft model and bearing models; the bearing dynamics were experimentally studied under heat radiation after stopping the spindle rotation. Moreover, a steel spindle shaft model and several types of CFRP layout with the same dimensions were compared on the spindle unit model; the CFRP spindle unit yielded a greater dynamic stiffness. The layout of the CFRP application and requirements on manufacturing are discussed for the further improvement of the dynamic stiffness.
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使用碳纤维复合材料的机床主轴的评价
DOI：
10.20965/ijat.2020.p0294
发表时间：
2020
期刊：
Int. J. Autom. Technol.
影响因子：
--
作者：
R. Kondo;D. Kono;A. Matsubara
通讯作者：
A. Matsubara
一种钢与碳纤维复合材料混合结构的机床电主轴
DOI：
--
发表时间：
2019
期刊：
CIRP annals
影响因子：
--
作者：
D. Kono;Soichiro Mizuno;Toshiyuki Muraki;M. Nakaminami
通讯作者：
M. Nakaminami
影响因子：
4.1
作者：
Abele, E.;Altintas, Y.;Brecher, C.
通讯作者：
Brecher, C.
影响因子：
3.2
作者：
D. Zulli
通讯作者：
D. Zulli