Results 1 to 10 of about 40,364 (312)
The Influence of Rotor Unbalance on Turbocharger Rotor Dynamics
Journal of Middle European Construction and Design of Cars, 2015 This paper describes the influence of an unbalance on turbocharger rotor dynamics. The structural model of the turbocharger rotor and the hydrodynamic model of the journal floating ring bearing are described and assembled in multibody dynamics software ...
Knotek Jiří +4 more
doaj +2 more sources
Dynamics and efficiency of Brownian rotors [PDF]
The Journal of Chemical Physics, 2008 Brownian rotors play an important role in biological systems and in future nanotechnological applications. However the mechanisms determining their dynamics, efficiency, and performance remain to be characterized. Here the F0 portion of the F-ATP synthase is considered as a paradigm of the Brownian rotor.
Bauer, W. R., Nadler, W.
openaire +4 more sources
Investigation on the Rotordynamic Characteristics of Turbopumps with Angular Contact Ball Bearings
Vibration, 2023 The support stiffness of the turbopump rotor system with angular contact ball bearing varies with the rotational speed, which leads to the inaccurate prediction of the dynamics of the turbopump rotor system.
Yue Su, Kaifu Xu, Yongqiang Gao, Lu Jin
doaj +1 more source
Rotors and the Dynamics of Cardiac Fibrillation [PDF]
Circulation Research, 2013 The objective of this article is to present a broad review of the role of cardiac electric rotors and their accompanying spiral waves in the mechanism of cardiac fibrillation. At the outset, we present a brief historical overview regarding reentry and then discuss the basic concepts and terminologies pertaining to rotors and their initiation ...
Sandeep V, Pandit, José, Jalife
openaire +2 more sources
Rotor Dynamic Modeling and Analysis of a Flywheel Rotor [PDF]
Advances in Computer Science Research, 2015 misbaw6@yahoo.com This paper presents rotordynamic modeling and performance analyses of a flywheel energy storage system rotor that utilizes a hybrid magnetic bearing having an energy storage capacity of 220 W h at its operating speed of 20,000rpm. A rotor model designed in solid works 13 and imported into ansys 14.5 is presented with some its main ...
Misbawu Adam +2 more
openaire +1 more source
Typical Fault Modeling and Vibration Characteristics of the Turbocharger Rotor System
Machines, 2023 To study the typical failure mechanism (rotor unbalance, rotor friction, and rotor crack) and vibration characteristics of the turbocharger rotor system, a rotor system dynamics simulation model was established by an improved four-node aggregate ...
Jiahao Wang +6 more
doaj +1 more source
Revisiting Rotor Rigid Body Modes: Parametric Study of Stability
International Journal of Rotating Machinery, 1999 This paper presents an analytical model of a rigid rotor supported in two fluid film bearings with an emphasis on predicting the instability threshold speed.
Nathan B. Littrell +2 more
doaj +1 more source
The Dynamics of Rotor with Rubbing [PDF]
International Journal of Rotating Machinery, 1998 This paper presents the description of some phenomena associated with dynamic behavior of rotors interacting with stationary components. Numerical simulations show rotor vibration spectrum rich in subharmonic, quasi‐periodic, and chaotic vibrations. The nonlinear calculation techniques are applied to demonstrate the changes of the vibration patterns ...
Jerzy T. Sawicki +2 more
openaire +2 more sources
Dynamics of Anisotropically Supported Rotors
International Journal of Rotating Machinery, 1997 The paper discusses dynamic effects occurring in machinery rotors supported in bearings and pedestals with laterally different characteristics. In the considered rotor model the anisotropy of radial stiffness and tangential (“cross”) stiffness components
Agnes Muszynska +2 more
doaj +1 more source
Friction, 2019 In this paper, a square textured parallel slider is considered for a study to improve the hydrodynamic performance of moving parts. The numerical method is employed for the analysis of a square texture with different bottom profiles: flat, triangle T1 ...
Nilesh D. Hingawe, Skylab P. Bhore
doaj +1 more source