scholarly journals Rotordynamic analysis of asymmetric turbofan rotor due to fan blade-loss event with contact-impact rub loads

2013 ◽  
Vol 332 (9) ◽  
pp. 2253-2283 ◽  
Author(s):  
Sunil K. Sinha
2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Chi Ma ◽  
Wei Chen ◽  
Jiaqi Han ◽  
Lulu Liu ◽  
Zhenhua Zhao ◽  
...  

A fan-blade out (FBO) event may cause complex vibrations in an aeroengine. A fusing structure protects the structural integrity of the whole aeroengine after an extreme accident, such as a blade-loss event. In this paper, we investigate not only the transient and steady responses of a simulated aeroengine model with a fusing structure after an FBO event but also the changes made to the model because of the fusing structure. Our simulated model of an aeroengine includes two rotors, bearings, and a casing. The results for the dynamic response of the simulated model show that the fusing structure can reduce the steady-state response and the impact load on the support bearings in the rotor system. The rubbing impact between the blades and casing was accounted for. A fast method for calculating the response of fused structures was developed, which may be useful when designing the stiffness of the fusing structure.


2021 ◽  
Vol 122 ◽  
pp. 105282
Author(s):  
Chidambaram Subramanian ◽  
Himadri Roy ◽  
Abhijit Mondal ◽  
Debashis Ghosh ◽  
Swarup Kr Laha ◽  
...  
Keyword(s):  

2013 ◽  
Vol 773 ◽  
pp. 87-90
Author(s):  
Chen Wang ◽  
De Zhou Meng ◽  
Xu Fang Bo

Based on the background of wind power, considering the wind blade sweep area on the uneven distribution, this paper is using the PID control algorithm to control the pitch system. At the same time, this paper is using Siemens SCL to programming, simulating on the experimental platform. Simulation results show the validity of the theory and the feasibility of the system, realizing variable pitch control of fan blade.


2011 ◽  
Author(s):  
Takeshi Murooka ◽  
Shinichirou Shishido ◽  
Riho Hiramoto ◽  
Takakazu Minoya
Keyword(s):  

2003 ◽  
Vol 7 (5) ◽  
pp. 364-372 ◽  
Author(s):  
Meng Chen ◽  
Liping Chen ◽  
Xinfang Zhang ◽  
Hemin Bai ◽  
Yuzhi Xiao

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