TY - GEN
T1 - Rotor connection structure interface damage control and robust design method for its mechanical properties
AU - Li, Chao
AU - Lei, Binglong
AU - Tian, Jing
AU - Ma, Yanhong
AU - Hong, Jie
N1 - Publisher Copyright:
© Springer Nature Singapore Pte Ltd. 2021.
PY - 2021
Y1 - 2021
N2 - Aiming at the structural mechanics of aero-engine rotor structure with uneven distribution of mass and stiffness, interfacial connection and large bending loads, the relationship between the mechanical properties of the rotor connection structure and the interface contact state is analyzed, reveals the influence of the degree of interface damage on the mechanical properties of the connection structure. And the quantitative evaluation parameters of connection interface slip and frictionfatigue damage degree suitable for engineering design are proposed. A robust design method for mechanical properties of rotor systems based on connection interface deformation coordination and rotor strain energy distribution control is established. By optimizing the geometrical characteristic parameters of the rotor structure, the bending strain energy distribution of the rotor under the working load environment is adjusted, it can effectively control the deformation and coordination of the connection interface, reduce the friction-fatigue damage of the connection interface, so that the sensitivity of themechanical properties of the connection structure to the applied load can be reduced, further ensure the robustness of the rotor’s dynamic characteristics. Taking the connection structure in the high-speed rotor system as an example, the simulation results show the effectiveness of the robust design of the mechanical connection with the interface connection rotor connection structure.
AB - Aiming at the structural mechanics of aero-engine rotor structure with uneven distribution of mass and stiffness, interfacial connection and large bending loads, the relationship between the mechanical properties of the rotor connection structure and the interface contact state is analyzed, reveals the influence of the degree of interface damage on the mechanical properties of the connection structure. And the quantitative evaluation parameters of connection interface slip and frictionfatigue damage degree suitable for engineering design are proposed. A robust design method for mechanical properties of rotor systems based on connection interface deformation coordination and rotor strain energy distribution control is established. By optimizing the geometrical characteristic parameters of the rotor structure, the bending strain energy distribution of the rotor under the working load environment is adjusted, it can effectively control the deformation and coordination of the connection interface, reduce the friction-fatigue damage of the connection interface, so that the sensitivity of themechanical properties of the connection structure to the applied load can be reduced, further ensure the robustness of the rotor’s dynamic characteristics. Taking the connection structure in the high-speed rotor system as an example, the simulation results show the effectiveness of the robust design of the mechanical connection with the interface connection rotor connection structure.
KW - Connection structure
KW - Damage control
KW - Discontinuity
KW - Robust design
UR - https://www.scopus.com/pages/publications/85104942748
U2 - 10.1007/978-981-15-8049-9_40
DO - 10.1007/978-981-15-8049-9_40
M3 - 会议稿件
AN - SCOPUS:85104942748
SN - 9789811580482
T3 - Lecture Notes in Mechanical Engineering
SP - 647
EP - 670
BT - Proceedings of the 14th International Conference on Vibration Problems - ICOVP 2019
A2 - Sapountzakis, Evangelos J.
A2 - Biswas, Paritosh
A2 - Banerjee, Muralimohan
A2 - Inan, Esin
PB - Springer Science and Business Media Deutschland GmbH
T2 - 14th International Conference on Vibration Problems, ICOVP 2019
Y2 - 1 September 2019 through 4 September 2019
ER -