TY - JOUR
T1 - 面向增材制造的航空发动机外部系统支架拓扑优化设计
AU - Meng, Liang
AU - Zhong, Mingzhe
AU - Li, Wenbiao
AU - Xia, Liang
AU - Gao, Tong
AU - Zhu, Jihong
AU - Zhang, Weihong
N1 - Publisher Copyright:
© 2022 China Mechanical Engineering Magazine Office. All rights reserved.
PY - 2022/12/10
Y1 - 2022/12/10
N2 - The mechanics properties of aero-engine external system supports under critical loading conditions were analyzed. The support smoothness under two kinds of ultimate load conditions was used as objective function. The topology optimization design and performance check of external system supports for additive manufacturing were conducted using transverse isotropic model of additive manufacturing materials. The results of the mechanics test of metal laser additive manufacturing samples shows that, compared with the initial structure, the support design for additive manufacturing has a 15% less material usage, the stiffness increases by about 20%, and the first-order natural frequency improves by 15%. The structural strength increases significantly. The integrated additive manufacturing with 1 external system support, 2 piping supports and 4 rivets was realized herein, which effectively improves the quality and efficiency of engine assembly. The ground static load and engine ignition tests were successfully passed.
AB - The mechanics properties of aero-engine external system supports under critical loading conditions were analyzed. The support smoothness under two kinds of ultimate load conditions was used as objective function. The topology optimization design and performance check of external system supports for additive manufacturing were conducted using transverse isotropic model of additive manufacturing materials. The results of the mechanics test of metal laser additive manufacturing samples shows that, compared with the initial structure, the support design for additive manufacturing has a 15% less material usage, the stiffness increases by about 20%, and the first-order natural frequency improves by 15%. The structural strength increases significantly. The integrated additive manufacturing with 1 external system support, 2 piping supports and 4 rivets was realized herein, which effectively improves the quality and efficiency of engine assembly. The ground static load and engine ignition tests were successfully passed.
KW - additive manufacturing
KW - external system bracket
KW - multiple loading condition
KW - topology optimization
KW - variable density method
UR - http://www.scopus.com/inward/record.url?scp=85146400801&partnerID=8YFLogxK
U2 - 10.3969/j.issn.1004-132X.2022.23.006
DO - 10.3969/j.issn.1004-132X.2022.23.006
M3 - 文章
AN - SCOPUS:85146400801
SN - 1004-132X
VL - 33
SP - 2822
EP - 2832
JO - Zhongguo Jixie Gongcheng/China Mechanical Engineering
JF - Zhongguo Jixie Gongcheng/China Mechanical Engineering
IS - 23
ER -