航空工程进展
航空工程進展
항공공정진전
ADVANCES IN AERONAUTICAL SCIENCE AND ENGINEERING
2012年
3期
379-382
,共4页
航空发动机%金属波纹封严环%有限元%优化设计
航空髮動機%金屬波紋封嚴環%有限元%優化設計
항공발동궤%금속파문봉엄배%유한원%우화설계
aviation engine%corrugated metal sealing ring%finite element%optimal design
为提高航空发动机用金属波纹封严环的密封性能，通过利用有限元方法对金属波纹封严环进行有限元分析，对不同断面形状的封严环轴向刚度变化、径向尺寸变化和应力分布情况进行了对比，得到了基于波节的金属波纹封严环外形尺寸的初步优化设计方案。通过对金属波纹封严环应力的观察分析，结果表明：圆弧波节的应力分布比较均匀，合理优化圆弧波节的外形尺寸以减小径向变形和轴向刚度，可较大地提升金属波纹封严环的稳定性和使用寿命，对航空发动机金属波纹封严环的理论研究及优化设计与制造具有一定参考指导意义。
為提高航空髮動機用金屬波紋封嚴環的密封性能，通過利用有限元方法對金屬波紋封嚴環進行有限元分析，對不同斷麵形狀的封嚴環軸嚮剛度變化、徑嚮呎吋變化和應力分佈情況進行瞭對比，得到瞭基于波節的金屬波紋封嚴環外形呎吋的初步優化設計方案。通過對金屬波紋封嚴環應力的觀察分析，結果錶明：圓弧波節的應力分佈比較均勻，閤理優化圓弧波節的外形呎吋以減小徑嚮變形和軸嚮剛度，可較大地提升金屬波紋封嚴環的穩定性和使用壽命，對航空髮動機金屬波紋封嚴環的理論研究及優化設計與製造具有一定參攷指導意義。
위제고항공발동궤용금속파문봉엄배적밀봉성능，통과이용유한원방법대금속파문봉엄배진행유한원분석，대불동단면형상적봉엄배축향강도변화、경향척촌변화화응력분포정황진행료대비，득도료기우파절적금속파문봉엄배외형척촌적초보우화설계방안。통과대금속파문봉엄배응력적관찰분석，결과표명：원호파절적응력분포비교균균，합리우화원호파절적외형척촌이감소경향변형화축향강도，가교대지제승금속파문봉엄배적은정성화사용수명，대항공발동궤금속파문봉엄배적이론연구급우화설계여제조구유일정삼고지도의의。
The finite element analysis of corrugated metal sealing ring is taken to improve the sealability of corru- gated metal sealing ring, which is used in aviation engine. The variations of axial stiffness and radial size and the distribution of stress are compared, and then, a preliminary optimization design of the outline dimension of cor- rugated metal sealing ring, which based on its wave section, has been gotten. The observation and analysis of corrugated metal sealing stress show that stress distribution of circular arc wave section is rather uniform, and optimizing outline dimension of circular arc wave section and reducing the radial deformation and axial stiffness can improve the stability and service life of corrugated metal sealing ring. It is of reference and guidance signifi- cance for theory research and optimal design of corrugated metal sealing ring in aviation engine.
