Results 21 to 30 of about 17,291 (260)
Selecting a squeeze film damper model for solving problems of gas turbine engine rotor dynamics
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017 Various standard mathematical squeeze film damper (SFD) models that can be applied for solving rotor dynamics problems of gas turbine engines (GTE) are presently available.
M. K. Leontiev, M. N. Kutakov
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Failure Prediction of the Rotating Machinery Based on CEEMDAN-ApEn Feature and AR-UKF Model
Applied Sciences, 2020 A novel failure prediction method of the rotating machinery is presented in this paper. Firstly, the complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) is applied to decompose the vibration signals of the rotating machinery into
Jingli Yang +3 more
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International Journal of Rotating Machinery, 2021 The vibration signal of rotating machinery compound faults acquired in actual fields has the characteristics of complex noise sources, the strong background noise, and the nonlinearity, causing the traditional blind source separation algorithm not be ...
Feng Miao +3 more
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Software design of rotating machinery fault diagnosis system based on deep learning [PDF]
E3S Web of Conferences, 2021 With the development of Industry 4.0, in order to meet the needs of intelligent fault diagnosis of rotating machinery in the industrial field, this paper developed a fault diagnosis system for rotating machinery based on deep learning and wavelet ...
He Xiaofeng +6 more
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Evaluation of the Thermal Effects in Tilting Pad Bearing
International Journal of Rotating Machinery, 2013 The analysis of thermal effects is of expressive importance in the context of rotordynamics to evaluate the behavior of hydrodynamic bearings because these effects can influence their dynamic characteristics under specific operational conditions.
G. B. Daniel, K. L. Cavalca
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Dynamic Absorbers for Rotating Machinery
, 2015 Dynamic absorbers are simple passive devices installed on mechanical systems to absorb and dissipate kinetic energy, thus reducing the amplitude of vibrations/oscillations. The most widely spread typologies of dynamic absorbers belong either to the family of the Tuned Mass Dampers (TMD) and Tuneable Liquid Column Dampers (TLCD).
BORGHESANI, PIETRO +3 more
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On the Instability Threshold of Journal Bearing Supported Rotors
International Journal of Rotating Machinery, 2014 Journal bearing supported rotors present two kinds of self-excited vibrations: oil-whirl and oil-whip. The first one is commonly masked by the rotor unbalance, hence being rarely associated with instability problems.
Ricardo Ugliara Mendes +1 more
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Active Magnetic Bearing Online Levitation Recovery through μ-Synthesis Robust Control
Actuators, 2017 A rotor supported on active magnetic bearings (AMBs) is levitated inside an air gap by electromagnets controlled in feedback. In the event of momentary loss of levitation due to an acute exogenous disturbance or external fault, reestablishing levitation ...
Alexander H. Pesch, Jerzy T. Sawicki
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Reliability-Based Design Optimization Applied to a Rotor Supported by Hydrodynamic Bearings
MachinesRotating machines are an important part of industrial equipment. It is essential to improve their performance while reducing the manufacturing, operating, and maintenance costs.
Helio Fiori de Castro +2 more
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Sensors, 2013 Timely and accurate condition monitoring and fault diagnosis of rotating machinery are very important to maintain a high degree of availability, reliability and operational safety.
Zhongjie Shen +3 more
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