Conceptual design and optimization of polymer gear system for low-thrust turbofan aeroengine accessory transmission

IF 4.8 2区工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Journal of Computational Design and Engineering Pub Date : 2024-01-22 DOI:10.1093/jcde/qwae008

Zehua Lu, Chang Liu, Changjun Liao, Jiazan Zhu, Huaiju Liu, Yiming Chen

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Abstract

The advancement in materials and lubrication has significantly improved the load-carrying capability of polymer gears, making them ideal for replacing metal gears in power transmission. However, this conversion is not as simple as substituting steel with polymer; it requires a thorough redesign of the structural parameters specific to polymer gears. To enable the metal-to-polymer conversion of gear in power transmission, a model for optimizing polymer gear systems was developed. An investigation of the accessory transmission system of a low-thrust turbofan aeroengine was conducted. A comprehensive performance index for the accessory transmission was developed using combined weighting coefficients to achieve the optimization goals including total mass, transmission efficiency, maximum transmission error and so on. The polymer gear system developed using the proposed optimization model demonstrated a 70.4% reduction in total mass compared to the metal gear system, as well as a transmission error decrease of over 29% when compared to polymer gear systems with standard tooth profiles. The contribution analysis results demonstrated that optimizing the tooth width, pressure angle, and addendum height of polymer gears can significantly enhance the load-carrying capacity of the polymer gear system while maximizing tooth profile flexibility.

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低推力涡扇发动机附件传动聚合物齿轮系统的概念设计与优化

材料和润滑方面的进步大大提高了聚合物齿轮的承载能力，使其成为取代动力传输中金属齿轮的理想选择。然而，这种转换并不像用聚合物替代钢那么简单，它需要对聚合物齿轮特有的结构参数进行彻底的重新设计。为了实现动力传动中齿轮的金属-聚合物转换，我们开发了一个用于优化聚合物齿轮系统的模型。对低推力涡扇发动机的附件传动系统进行了研究。利用组合加权系数制定了附件传动系统的综合性能指标，以实现总质量、传动效率、最大传动误差等优化目标。使用所提出的优化模型开发的聚合物齿轮系统与金属齿轮系统相比，总质量减少了 70.4%，与具有标准齿形的聚合物齿轮系统相比，传动误差减少了 29% 以上。贡献分析结果表明，优化聚合物齿轮的齿宽、压力角和附加高度可显著提高聚合物齿轮系统的承载能力，同时最大限度地提高齿形灵活性。

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来源期刊

Journal of Computational Design and Engineering Computer Science-Human-Computer Interaction

CiteScore

7.70

自引率

20.40%

发文量

125

期刊介绍： Journal of Computational Design and Engineering is an international journal that aims to provide academia and industry with a venue for rapid publication of research papers reporting innovative computational methods and applications to achieve a major breakthrough, practical improvements, and bold new research directions within a wide range of design and engineering: • Theory and its progress in computational advancement for design and engineering • Development of computational framework to support large scale design and engineering • Interaction issues among human, designed artifacts, and systems • Knowledge-intensive technologies for intelligent and sustainable systems • Emerging technology and convergence of technology fields presented with convincing design examples • Educational issues for academia, practitioners, and future generation • Proposal on new research directions as well as survey and retrospectives on mature field.