Research on the dynamic variation law of the discontinuous characteristics of the curvic coupling of aero-engine rotors under working conditions
For the design of advanced aero-engine rotor systems under ultra-high rotational speeds, this paper undertakes a comprehensive investigation into the contact stiffness of curvic couplings, which are the key connection mechanism of modern aero-engine rotors, and explores the dynamic variations in the...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-11-01
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| Series: | Engineering Science and Technology, an International Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215098624002568 |
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| _version_ | 1846167090569936896 |
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| author | Xing Heng Ailun Wang Haibiao Zhang Yijun Yin |
| author_facet | Xing Heng Ailun Wang Haibiao Zhang Yijun Yin |
| author_sort | Xing Heng |
| collection | DOAJ |
| description | For the design of advanced aero-engine rotor systems under ultra-high rotational speeds, this paper undertakes a comprehensive investigation into the contact stiffness of curvic couplings, which are the key connection mechanism of modern aero-engine rotors, and explores the dynamic variations in the contact stiffness of curvic couplings under working conditions. Firstly, the impact of dynamic loads of aero-engine rotors under working conditions on the curvic coupling is studied; Then, the contact stiffness analytical model of curvic couplings considering three-dimensional geometric features is proposed with the effects of dynamic loads; Finally, based on the established stiffness model, the dynamic loss laws of contact stiffness of curvic couplings under different dynamic loads are investigated, and the established model is experimentally validated. The results show that the dynamic loss law of contact stiffness varies with different dynamic loads. In comparison to the contact stiffness under the static condition, dynamic loads significantly reduce the contact stiffness of curvic couplings under working conditions, which in turn leads to changes in the dynamic characteristics of the rotor with curvic couplings. For the safe integration of the discontinuous rotor system under ultra-high rotational speeds, it is essential to carefully design and regulate the operating speed, transmission torque, unbalanced mass, and preload. |
| format | Article |
| id | doaj-art-097ae966987a4c33afa823d6785763a9 |
| institution | Kabale University |
| issn | 2215-0986 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Engineering Science and Technology, an International Journal |
| spelling | doaj-art-097ae966987a4c33afa823d6785763a92024-11-15T06:12:05ZengElsevierEngineering Science and Technology, an International Journal2215-09862024-11-0159101870Research on the dynamic variation law of the discontinuous characteristics of the curvic coupling of aero-engine rotors under working conditionsXing Heng0Ailun Wang1Haibiao Zhang2Yijun Yin3School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, PR ChinaSchool of Mechanical and Electrical Engineering, Central South University, Changsha 410083, PR China; Corresponding author.School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, PR China; Hunan Aviation Powerplant Research Institute, AECC, Zhuzhou 412002, PR ChinaSchool of Mechanical and Electrical Engineering, Central South University, Changsha 410083, PR ChinaFor the design of advanced aero-engine rotor systems under ultra-high rotational speeds, this paper undertakes a comprehensive investigation into the contact stiffness of curvic couplings, which are the key connection mechanism of modern aero-engine rotors, and explores the dynamic variations in the contact stiffness of curvic couplings under working conditions. Firstly, the impact of dynamic loads of aero-engine rotors under working conditions on the curvic coupling is studied; Then, the contact stiffness analytical model of curvic couplings considering three-dimensional geometric features is proposed with the effects of dynamic loads; Finally, based on the established stiffness model, the dynamic loss laws of contact stiffness of curvic couplings under different dynamic loads are investigated, and the established model is experimentally validated. The results show that the dynamic loss law of contact stiffness varies with different dynamic loads. In comparison to the contact stiffness under the static condition, dynamic loads significantly reduce the contact stiffness of curvic couplings under working conditions, which in turn leads to changes in the dynamic characteristics of the rotor with curvic couplings. For the safe integration of the discontinuous rotor system under ultra-high rotational speeds, it is essential to carefully design and regulate the operating speed, transmission torque, unbalanced mass, and preload.http://www.sciencedirect.com/science/article/pii/S2215098624002568Aero-engine RotorsCurvic CouplingDynamic Variation LawContact Stiffness LossComplex Dynamic loads |
| spellingShingle | Xing Heng Ailun Wang Haibiao Zhang Yijun Yin Research on the dynamic variation law of the discontinuous characteristics of the curvic coupling of aero-engine rotors under working conditions Engineering Science and Technology, an International Journal Aero-engine Rotors Curvic Coupling Dynamic Variation Law Contact Stiffness Loss Complex Dynamic loads |
| title | Research on the dynamic variation law of the discontinuous characteristics of the curvic coupling of aero-engine rotors under working conditions |
| title_full | Research on the dynamic variation law of the discontinuous characteristics of the curvic coupling of aero-engine rotors under working conditions |
| title_fullStr | Research on the dynamic variation law of the discontinuous characteristics of the curvic coupling of aero-engine rotors under working conditions |
| title_full_unstemmed | Research on the dynamic variation law of the discontinuous characteristics of the curvic coupling of aero-engine rotors under working conditions |
| title_short | Research on the dynamic variation law of the discontinuous characteristics of the curvic coupling of aero-engine rotors under working conditions |
| title_sort | research on the dynamic variation law of the discontinuous characteristics of the curvic coupling of aero engine rotors under working conditions |
| topic | Aero-engine Rotors Curvic Coupling Dynamic Variation Law Contact Stiffness Loss Complex Dynamic loads |
| url | http://www.sciencedirect.com/science/article/pii/S2215098624002568 |
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