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Nonlinear vibrations of a dual-rotor-bearing-coupling misalignment system with blade-casing rubbing
Journal of Sound and Vibration, 2021In order to reveal the nonlinear vibration characteristics of an actual dual-rotor-aero-engine with blade-casing rubbing, a dual-rotor-bearing-coupling misalignment system with blade-casing rubbing are investigated based on numerical simulation and ...
Yulin Jin +4 more
semanticscholar +3 more sources
Application of non-smooth NES in vibration suppression of rotor-blade systems
Applied Mathematical Modelling, 2020The non-smooth nonlinear energy sink (NSNES) is used to suppress the vibration of the rotor-blade system. Firstly, the structure and working principle of the NSNES for rotor-blade system are introduced.
Cao Yanbo +4 more
semanticscholar +3 more sources
Casing vibration response prediction of dual-rotor-blade-casing system with blade-casing rubbing
Mechanical Systems and Signal Processing, 2019This paper focuses on the dynamic responses of whole aero-engine with blade-casing rubbing. The vibration response of casing is simulated and the dynamic behaviors of casing acceleration under blade-casing rubbing are investigated to diagnose the blade ...
Nanfei Wang +3 more
semanticscholar +3 more sources
Vibration mitigation and dynamics of a rotor-blade system with an attached nonlinear energy sink
International Journal of Non-Linear Mechanics, 2020Excessive vibration of rotor-blade systems has been a main reason for the failure of rotating machinery. Therefore, methods capable of simultaneously suppressing vibrations rotor and blade are urgently needed.
Yanbo Cao +4 more
semanticscholar +3 more sources
Experimental analysis of dual-rotor-support-casing system with blade-casing rubbing
Engineering Failure Analysis, 2021Vibration features of inner rotor and casing of a dual-rotor-support-casing (DRSC) system with rubbing existing between blade and casing are analyzed in this work.
Nanfei Wang, Chao Liu, D. Jiang
semanticscholar +3 more sources
Full-field optical deformation measurement and operational modal analysis of a flexible rotor blade
Mechanical Systems and Signal Processing, 2019This study describes the deformation measurement and operational modal analysis (OMA) of an extremely flexible rotor blade in hover. Blade deformation of a 0.45 m-diameter two-bladed rotor was measured at two different root pitch angles and two ...
Daiju Uehara, J. Sirohi
semanticscholar +3 more sources
Energy Conversion and Management, 2019
In this work, some notable blade profiles of drag-based vertical axis Savonius wind turbine rotor have been investigated both numerically and experimentally to judge their performances on a common platform.
N. Alom, U. Saha
semanticscholar +3 more sources
In this work, some notable blade profiles of drag-based vertical axis Savonius wind turbine rotor have been investigated both numerically and experimentally to judge their performances on a common platform.
N. Alom, U. Saha
semanticscholar +3 more sources
Mechanical Systems and Signal Processing, 2018
Fan Blade Out (FBO) from a running rotor of the turbofan engine will not only introduce the sudden unbalance and inertia asymmetry into the rotor, but also apply large impact load and induce rotor-to-stator rubbing on the rotor, which makes the mass ...
Pingchao Yu +3 more
semanticscholar +3 more sources
Fan Blade Out (FBO) from a running rotor of the turbofan engine will not only introduce the sudden unbalance and inertia asymmetry into the rotor, but also apply large impact load and induce rotor-to-stator rubbing on the rotor, which makes the mass ...
Pingchao Yu +3 more
semanticscholar +3 more sources