Multi-objective topology optimization for cooling element of precision gear grinding machine tool

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2024-11-20 DOI:10.1016/j.icheatmasstransfer.2024.108356

Chi Ma , Jiarui Hu , Mingming Li , Xiaogang Deng , Jun Yang , Jialong He , Chunlei Hua , Liang Wang , Jialan Liu , Kuo Liu , Yuansheng Zhou , Mengyuan Li , Jianqiang Zhou , Xiaolei Deng , Shengbin Weng

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Abstract

The machining accuracy of the gear grinding machine tool is significantly reduced by the thermal error, and then an effective control of thermal error is imperative. To control the thermal error, an innovative idea for directly cooling a moving heat source for the gear grinding machine tool is proposed to replace the substitute hollow screw cooling method, and a multi-objective topology optimization approach is proposed to design the cooling element for precision gear grinding machine tool. The results show that the heat transfer capability of the topology optimization-shaped channel is much more outstanding than that of the traditional serpentine-shaped cooling channel, and the pressure drop is reduced by 2–3 times compared with that of the traditional serpentine-shaped cooling channel. The cooling element is embedded into the precision gear grinding machine tool, leading that the temperature rise of the moving nut is reduced by more than 3 K in and that the thermal elongation of the screw shaft is reduced by 10 %. The improvement rate for the repetitive positioning accuracy is in the range of [29.03 %, 92.59 %] and the grinding accuracy is improved by approximately 65 % by using the designed cooling element with topology optimization-shaped channel.

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精密磨齿机冷却元件的多目标拓扑优化

磨齿机床的加工精度因热误差而显著降低，因此有效控制热误差势在必行。为了控制热误差，本文提出了一种直接冷却移动热源的创新思路，以替代空心螺杆冷却法，并提出了一种多目标拓扑优化方法来设计精密磨齿机的冷却元件。结果表明，拓扑优化形通道的传热能力比传统蛇形冷却通道更为出色，压降比传统蛇形冷却通道降低了 2-3 倍。将冷却元件嵌入精密磨齿机床后，移动螺母的温升降低了 3 K 以上，丝杠轴的热伸长率降低了 10%。通过使用所设计的具有拓扑优化形状通道的冷却元件，重复定位精度提高了 [29.03 %, 92.59 %]，磨削精度提高了约 65 %。

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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.