Results 101 to 110 of about 88,667 (317)
MathematicsThere is a complex dynamic interaction between the aero-engine bearing and the rotor, and the resulting time-varying system parameters have an impact on the nonlinear dynamic characteristics of the rolling bearing-flexible rotor system.
Renzhen Chen +5 more
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Analysis of the lateral vibrations of an unbalanced Jeffcott rotor
MATEC Web of Conferences, 2018 This paper examines experimentally and analytically the lateral vibrations of a Jeffcott rotor running at various unbalance states. Using a Bently Nevada RK-4 rotor kit, three states of eccentric mass unbalance were assumed in this study: 0.4g, 0.8g and ...
Alsaleh Ali, Ouakad Hassen M.
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Mechanical Engineering Journal, 2019 These days, centrifugal compressors and other industrial turbomachines tend to be faster, downsized, and reduced in cost. If a technology can be established for operation of machines over higher critical speed using an active magnetic bearing, the number
Hiroyuki FUJIWARA +3 more
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HPOTP low-speed flexible rotor balancing, phase 1 [PDF]
A method was developed that shows promise in overcoming many balancing limitations. This method establishes one or more windows for low speed, out-of-housing balancing of flexible rotors.
Giordano, J., Zorzi, E.
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Developing Micro/Nanostructured Fluidic Mixing Technology for Biomedical Applications
Advanced Science, EarlyView.This review critically evaluates how micro/nanostructured mixing technologies are redefining biomedical research. By synergizing fundamental analysis, numerical modeling, structural design, and external field manipulation, these systems attain unprecedented control over mass transport.
Junkai Wang +3 more
wiley +1 more source
Shock and Vibration, 2017 The unbalanced vibration of the spindle rotor system in high-speed cutting processes not only seriously affects the surface quality of the machined products, but also greatly reduces the service life of the electric spindle. However, since the unbalanced
Xiaoli Qiao, Guojun Hu
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Design of Optimum Torsionally Flexible PropRotors for Tilt-Body MAVs [PDF]
, 2012 This paper presents a methodology to design the optimum proprotor for tilt-body microair-vehicles (TB-MAV) with efficient global propulsion system and long flight endurance in both cruise and hover modes.
Grondin, Gilles +3 more
core +3 more sources
Sulfide‐Based Electrolytes for All‐Solid‐State Sodium Batteries
Advanced Energy Materials, EarlyView.This review covers the structural features and synthesis strategies of sulfide‐based solid electrolytes, as well as critical challenges related to conductivity, interfacial and moisture stability, and scaling‐up for practical application in Sodium‐based All Solid‐State Batteries.
Han Yang +6 more
wiley +1 more source
Lubricants, 2016 Journal bearings are used to support rotors in a wide range of applications. In order to ensure reliable operation, accurate analyses of these rotor-bearing systems are crucial.
Rob Eling +3 more
doaj +1 more source
Stabilization of aerodynamically excited turbomachinery with hydrodynamic journal bearings and supports [PDF]
A method of analyzing the first mode stability and unbalance response of multimass flexible rotors is presented whereby the multimass system is modeled as an equivalent single mass modal model including the effects of rotor flexibility, general ...
Barrett, L. E., Gunter, E. J.
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