基于增材制造的“猫耳形”气膜孔冷却性能研究

doi:10.3901/JME.2024.15.334

机械工程学报 ›› 2024, Vol. 60 ›› Issue (15): 334-345.doi: 10.3901/JME.2024.15.334

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基于增材制造的“猫耳形”气膜孔冷却性能研究

张立浩¹, 钱波¹, 茅健¹, 樊红日¹, 张朝瑞¹, 李旭鹏²

1. 上海工程技术大学机械与汽车工程学院上海 201620;
2. 北京德荟智能科技有限公司北京 102300

收稿日期:2023-08-24 修回日期:2024-01-09 出版日期:2024-08-05 发布日期:2024-09-24
作者简介:张立浩，男，1997年出生。主要研究方向为金属3D打印工艺基础。E-mail：zhanglihao_ah@163.com
钱波(通信作者)，男，1979年出生，博士，副教授，硕士研究生导师。主要研究方向为金属3D打印工艺基础研究，3D打印工艺软件研究，以及基于增材制造的航空航天复杂结构件优化设计与功能验证。E-mail：qianbo@sues.edu.cn
基金资助:
国家自然科学基金(51705307)资助项目。

Study on Cooling Performance of “Cat Ear” Air Film Hole Based on Additive Manufacturing

ZHANG Lihao¹, QIAN Bo¹, MAO Jian¹, FAN Hongri¹, ZHANG Chaorui¹, LI Xupeng²

1. School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620;
2. Beijing Dehui Intelligent Technology Co., Ltd., Beijing 102300

Received:2023-08-24 Revised:2024-01-09 Online:2024-08-05 Published:2024-09-24

摘要/Abstract

摘要： 针对目前气膜冷却存在的冷却效果不理想，冷却效率较低等问题，提出基于双曲线的“猫耳形”气膜孔，对“猫耳形”气膜孔的结构参数及平板模型分布参数进行优化，并通过金属增材制造技术打印气膜孔样品进行实验。通过实验分析得到了气膜孔优化后的最佳结构参数和平板模型的最佳分布参数，并对冷却气流的射出速度进行了合理优化，单个气膜孔的最优冷却效率为55.56%，多列气膜孔的最高冷却效率达到73.10%，较相关文献中气膜孔平均冷却效率提升了6.10%，最优列间距R为15 mm。实验研究为涡轮叶片气膜孔的设计优化及气膜孔在涡轮叶片上的分布参数提供了重要的参考价值和设计经验。

关键词: 涡轮叶片, 气膜冷却, 实验研究, 参数优化, 增材制造

Abstract: Aiming at the problems of unsatisfactory cooling effect and low cooling efficiency of air film cooling, the "cat ear" air film hole based on hyperbolic curve is proposed, the structural parameters of the "cat ear" air film hole and the distribution parameters of the plate model are optimized. And the air film hole sample is prepared by metal additive manufacturing technology for experiments. The optimal structural parameters are obtained after the optimization of the air film hole parameters and the optimal distribution parameters of the plate model by experimental analysis. The injection speed of the cooling air flow is reasonably optimized and the optimal cooling efficiency of the single air film hole is 55.56% and the maximum cooling efficiency of the multi-column air film holes is 73.10%, which is 6.10% higher than the average cooling efficiency of the pores in the relevant literature. The optimal column spacing R is 15 mm. The experimental study provides important reference value and design experience for the design optimization of the air film hole of the turbine blade and the distribution parameters of the air film hole on the turbine blade.

Key words: turbine blade, air film cooling, experimental research, parameter optimization, additive manufacturing

中图分类号:

V231

张立浩, 钱波, 茅健, 樊红日, 张朝瑞, 李旭鹏. 基于增材制造的“猫耳形”气膜孔冷却性能研究[J]. 机械工程学报, 2024, 60(15): 334-345.

ZHANG Lihao, QIAN Bo, MAO Jian, FAN Hongri, ZHANG Chaorui, LI Xupeng. Study on Cooling Performance of “Cat Ear” Air Film Hole Based on Additive Manufacturing[J]. Journal of Mechanical Engineering, 2024, 60(15): 334-345.

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基于增材制造的“猫耳形”气膜孔冷却性能研究

Study on Cooling Performance of “Cat Ear” Air Film Hole Based on Additive Manufacturing

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