纤维增强复合材料低压涡轮轴结构强度优化设计

doi:10.19936/j.cnki.2096-8000.20260928.010

复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (9): 88-98.DOI: 10.19936/j.cnki.2096-8000.20260928.010

纤维增强复合材料低压涡轮轴结构强度优化设计

郑源林, 孙远驰, 骆丽^*, 李世超, 赵奉同

沈阳航空航天大学航空发动机学院辽宁省航空推进系统先进测试技术重点实验室,沈阳 110136

收稿日期:2025-08-01 出版日期:2026-09-28 发布日期:2026-09-23
通讯作者: 骆丽(1989—),女,博士,实验师,研究方向为航空发动机复合材料结构强度与失效模式,luolisau@163.com。
作者简介:郑源林(2004—),男,学士,研究方向为航空发动机复合材料结构强度。
基金资助:
强度与结构完整性全国重点实验室开放基金(ASSIKFJJ202303004)

Optimal design of structural strength for low-pressure turbine shaft of fiber reinforced composite materials

ZHENG Yuanlin, SUN Yuanchi, LUO Li^*, LI Shichao, ZHAO Fengtong

Key Laboratory of Advanced Measurement and Test Technique for Aviation Propulsion System, Liaoning Province, School of Aero-Engine, Shenyang Aerospace University, Shenyang 110136, China

Received:2025-08-01 Online:2026-09-28 Published:2026-09-23

摘要/Abstract

摘要： 针对新一代航空发动机所应用的纤维增强复合材料传动轴结构在实际应用中的强度问题,开展了复合材料传动轴结构强度优化设计方法研究及强度参数计算与试验验证,通过对RVE有限元模型强度参数计算结果与试验结果进行对比,发现两者的误差均在合理范围内,证明了有限元仿真计算方法的正确性。选用单向缠绕铺层结构的纤维增强金属基复合材料轴结构整体模型算例,对其进行优化设计应用,建立复合材料轴分层复合结构模型,对复合材料轴结构的最优铺层方案进行设计。在铺层厚度不变的条件下,通过计算得到最佳铺层角度为47.8°;在铺层角度不变的条件下,计算得到最佳铺层厚度为8层。采用响应面法对纤维增强复合材料低压涡轮轴进行强度优化设计,选择其优化参数,并确定响应值为最大Mises应力和最大蔡-吴指数,获得响应面模型,并得到二阶响应面近似方程,进而求得响应值最优解时的各项优化参数,并将其应用于复合材料低压涡轮轴。结果表明,优化后复合材料轴结构的减重率为35.21%。

关键词: 纤维增强复合材料, 低压涡轮轴结构, 结构优化方法, 结构强度, 响应面法

Abstract: Aiming at the strength problem of the fiber-reinforced composite material transmission shaft structure applied in the new generation of aero engines, the research on the strength optimization design method of the composite material transmission shaft structure and the calculation and experimental verification of the strength parameters were carried out. By comparing the strength parameter calculation results of the RVE finiteelement model with the experimental results, all errors were within the reasonable range, which proved the correctness of the finite element simulation method. The overall model example of the unidirectional winding layer structure of the fiber-reinforced metal matrix composite material shaft structure was selected for optimization design application, and the composite material shaft laminated composite structure model was established to design the optimal layering scheme of the composite material shaft structure. Under the condition that the layer thickness remains unchanged, the optimallayering angle of 47.8° was obtained through calculation; under the condition that the layering angle remains unchanged, theoptimal layering thickness of 8 layers was obtained through calculation. The response surface method was used to optimize the strength design of the fiber-reinforced composite material low-pressure turbine shaft, and the optimization parameters were selected, with the maximum von Mises stress and the maximum Tsai-Wu index as the response values. The response surface model was obtained, and the second-order response surface approximated equation was obtained, thereby obtaining the optimal solution of the response values and the corresponding optimization parameters. These parameters were applied to the composite material low-pressure turbine shaft, and the results showed that the weight reduction rate of the optimized composite material shaft structure was 35.21%.

Key words: fiber-reinforced composites, low-pressure turbine shaft structure, structural optimization method, structural strength, response surface method

中图分类号:

TB332

郑源林, 孙远驰, 骆丽, 李世超, 赵奉同. 纤维增强复合材料低压涡轮轴结构强度优化设计[J]. 复合材料科学与工程, 2026, 0(9): 88-98.

ZHENG Yuanlin, SUN Yuanchi, LUO Li, LI Shichao, ZHAO Fengtong. Optimal design of structural strength for low-pressure turbine shaft of fiber reinforced composite materials[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(9): 88-98.

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纤维增强复合材料低压涡轮轴结构强度优化设计

Optimal design of structural strength for low-pressure turbine shaft of fiber reinforced composite materials

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