直升机减速器机匣碳纤维轻量化设计与验证  

Lightweight Design and Verification of Housings of Helicopter Reducers with Carbon Fiber Reinforced Composites

作　　者：严岳胜 王继崇 蔡智杰 尹红灵[2] 彭雄奇[2] Yan Yuesheng;Wang Jichong;Cai Zhijie;Yin Hongling;Peng Xiongqi(AECC Hunan Aviation Powerplant Research Institute,Zhuzhou 412002,China;School of Materials Science and Engineering,Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]中国航发湖南动力机械研究所,湖南株洲412002 [2]上海交通大学材料科学与工程学院,上海200240

出　　处：《机械传动》2024年第5期138-144,共7页Journal of Mechanical Transmission

基　　金：国家自然科学基金联合基金项目(U20A20288)。

摘　　要：采用碳纤维复合材料替代铸铝合金材料对某直升机减速器主承力机匣进行了轻量化设计。在保留原设计硬点条件和满足结构强度/刚度条件下,实现机匣减重达21.8%。通过热模压制造了等比例的四分之一碳纤维机匣,对机匣进行了静力加载和疲劳测试。结果表明,碳纤维机匣在1.5倍设计载荷下静力测试未破坏,设计载荷下疲劳测试循环次数达到2万多,满足设计要求,从而验证了直升机减速器主承力机匣碳纤维轻量化的可行性。The housing of a helicopter reducer system is lightweight designed by replacing cast aluminum alloy with carbon fiber reinforced composites.Under the condition of retaining the original design hard points and meeting the requirements of structural stiffness and strength,the lightweight design of the housing is achieved with a weight reduction of 21.8%.One quarter composite housing with 1∶1 scale is trial-manufactured with the hot pressure molding.Static and fatigue tests of the composite housing are carried out.The test results show that the composite housing is not damaged in the static test under 1.5 times the design load,and the num-ber of fatigue test cycles under the design load reaches more than 20000 times.This verifies the feasibility of light-weighting with the carbon fiber reinforced composite for the housing of the helicopter reducer system.

关 键 词：复合材料 机匣 碳纤维 轻量化设计 有限元分析 

分 类 号：V275.1[航空宇航科学与技术—飞行器设计]