SENSITIVITY-BASED OPERATIONAL MODE SHAPE NORMALISATION

2002 ◽  
Vol 16 (5) ◽  
pp. 757-767 ◽  
Author(s):  
E. PARLOO ◽  
P. VERBOVEN> ◽  
P. GUILLAUME ◽  
M. VAN OVERMEIRE
Keyword(s):  
Mode Shape ◽  
Operational Mode

The Estimation of Rotor Unbalance

1997 ◽  
Author(s):  
A. W. Lees ◽  
M. I. Friswell
Keyword(s):  
Numerical Model ◽  
Mode Shape ◽  
Approximate Model ◽  
Operational Mode ◽  
Single Plane ◽  
Supporting Structure ◽  
Rotating Machine ◽  
Consistent Manner ◽  
Bearing System ◽  
Rotor Axis

Abstract A method is presented to determine the state of unbalance of a rotating machine. The only requirement of the procedure is a good numerical model for the rotor and an approximate model for the bearing behaviour. No assumptions are made concerning the operational mode shape of the rotor and the influence of the supporting structure is included in a consistent manner. For simplicity the analysis is presented in a single plane orthogonal to the rotor axis, but no difficulty is foreseen in extending the method to two planes. Examples are given for a two bearing system with both constant and varying bearing coefficients.

Sensor Fusion for Operational Mode Shape Analysis of Multi DoF Systems

2018 ◽  
Vol 5 (11) ◽  
pp. 24871-24879
Author(s):  
R. Rahul ◽  
Rohit Rajpal ◽  
Sai Aditya Raman Kuchibhatla ◽  
K.V. Gangadharan
Keyword(s):  
Sensor Fusion ◽  
Shape Analysis ◽  
Mode Shape ◽  
Operational Mode

Operational mode-shape normalisation with a structural modification for small and light structures

2014 ◽  
Vol 42 (1-2) ◽  
pp. 1-13 ◽  
Author(s):  
Domen Rovšček ◽  
Janko Slavič ◽  
Miha Boltežar
Keyword(s):  
Mode Shape ◽  
Structural Modification ◽  
Operational Mode

Sensitivity-based operational mode shape normalisation: Application to a bridge

2005 ◽  
Vol 19 (1) ◽  
pp. 43-55 ◽  
Author(s):  
E Parloo ◽  
B Cauberghe ◽  
F Benedettini ◽  
R Alaggio ◽  
P Guillaume
Keyword(s):  
Mode Shape ◽  
Operational Mode

Application of an image management system in microscopy

1992 ◽  
Vol 50 (2) ◽  
pp. 1052-1053
Author(s):  
Richard S. Chemock
Keyword(s):  
Data Storage ◽  
Cost Savings ◽  
Image Data ◽  
Analytical Techniques ◽  
Operational Mode ◽  
Fine Grained ◽  
Image Recording ◽  
Primary Output ◽  
Capacity Data ◽  
Image Management System

One of the most common tasks in a typical analysis lab is the recording of images. Many analytical techniques (TEM, SEM, and metallography for example) produce images as their primary output. Until recently, the most common method of recording images was by using film. Current PS/2R systems offer very large capacity data storage devices and high resolution displays, making it practical to work with analytical images on PS/2s, thereby sidestepping the traditional film and darkroom steps. This change in operational mode offers many benefits: cost savings, throughput, archiving and searching capabilities as well as direct incorporation of the image data into reports.The conventional way to record images involves film, either sheet film (with its associated wet chemistry) for TEM or PolaroidR film for SEM and light microscopy. Although film is inconvenient, it does have the highest quality of all available image recording techniques. The fine grained film used for TEM has a resolution that would exceed a 4096x4096x16 bit digital image.

Rotor Crack Identification Based on Mode Shape and Derivative Order Using Combination Resonances

2019 ◽  
Author(s):  
Izabela Batista da Silva ◽  
Paulo Costa Porto de Figueiredo Barbosa ◽  
Aldemir Ap Cavalini Jr ◽  
Valder Steffen Jr ◽  
Nicolò Bachschmid
Keyword(s):  
Mode Shape ◽  
Crack Identification ◽  
Derivative Order

Experimental studies of iodine stationary plasma thruster

2019 ◽  
pp. 81-90
Author(s):  
Boris A. Sokolov ◽  
Pavel A. Shcherbina ◽  
Ivan B. Sishko ◽  
Aleksandr V. Shipovskiy Aleksandr ◽  
Aleksandr A. Lyapin ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Thermal Conditions ◽  
Economic Viability ◽  
Electron Drift ◽  
Experimental Facility ◽  
Operational Mode ◽  
Stationary Plasma Thruster ◽  
Stationary Plasma ◽  
Plasma Thruster ◽  
Closed Electron

The paper demonstrates the feasibility of using iodine as propellant for thrusters with closed electron drift and its economic viability. It describes a test setup for running experiments. It provides the results of experimental studies of the stationary plasma thruster using iodine as its propellant with xenon gas-passage hollow cathode, as well as of the operational mode of the thruster where a mixture of xenon and iodine is used. During tests gas dynamic and electrical properties of the thruster were analyzed. Thermal conditions in the iodine storage and supply system were studied. Conclusions were drawn on how the test object could be improved and upgraded. The paper describes the option to use a thermionic non-flow cathode as the compensator cathode for the operation of the iodine thruster. The paper provides the results of an experimental study of the prototype non-flow compensator cathode in diode mode. Based on the results of the studies an experimental facility was built for testing a thruster with non-flow compensator cathode. Key words: cathode, compensator cathode, thruster with closed electron drift, stationary plasma thruster, iodine.

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