Prediction method and experimental verification of the burst speed of the vortex reducer

被引：0

作者：

Wei D. ^{[1
,2
]}

Ma M. ^{[1
]}

Wang Y. ^{[1
]}

Li D. ^{[3
]}

Zhang H. ^{[3
]}

机构：

[1] School of Energy and Power Engineering, Beihang University, Beijing

[2] Jiangxi Research institute, Beihang University, Nanchang

[3] Research and Development Center, Commercial Aircraft Engine Company Limited, Aero Engine Corporation of China, Shanghai

来源：

Hangkong Dongli Xuebao/Journal of Aerospace Power | 2022年 / 37卷 / 04期

关键词：

Burst speed; Simulative specimen; Stress gradient; Structural strength; Vortex reducer;

D O I：

10.13224/j.cnki.jasp.20210100

中图分类号：

学科分类号：

摘要：

The problem of the burst speed of vortex reducer was studied by numerical analysis combined with experiment.According to the stress state of vortex reducer, the simulative specimen was designed, and the failure experiments under the monotonic tensile load were carried out.The failure parameters reflecting the structural stress characteristics were obtained.Furthermore, based on the finite element method, the failure parameters of the simulative specimen were introduced into burst speed prediction of vortex reducer and the influences of different failure criterion on the burst speed prediction were compared.The analysis showed that the stress gradient of simulative specimen was in good agreement with structure, which can accurately describe the structural stress characteristics.Burst speeds calculated by the methods of local plasticity and based on tensile strength of materials were more conservative, which were 15% and 23% lower than those predicted by average stress method, respectively.The method developed has engineering reference value for the failure analysis of structures. © 2022, Editorial Department of Journal of Aerospace Power. All right reserved.

引用

页码：704 / 710

页数：6

共 20 条

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