Vane Clocking Effects on the Resonant Response of an Embedded Rotor

2011 ◽  
Vol 27 (1) ◽  
pp. 71-77 ◽  
Author(s):  
Yoon S. Choi ◽  
Nicole Key ◽  
Sanford Fleeter
Keyword(s):  
Resonant Response ◽  
Vane Clocking

Investigation of Flow Physics of Vane Clocking Effects on Rotor Resonant Response

2011 ◽  
Vol 27 (5) ◽  
pp. 1001-1007 ◽  
Author(s):  
Jonathan R. Salontay ◽  
Nicole L. Key ◽  
Roy D. Fulayter
Keyword(s):  
Resonant Response ◽  
Flow Physics ◽  
Vane Clocking

scholarly journals Investigating the Trackability of Silicon Microprobes in High-Speed Surface Measurements

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1557
Author(s):  
Min Xu ◽  
Zhi Li ◽  
Michael Fahrbach ◽  
Erwin Peiner ◽  
Uwe Brand
Keyword(s):  
Dynamic Model ◽  
High Speed ◽  
High Signal ◽  
Resonant Response ◽  
High Demand ◽  
Surface Measurements ◽  
Tactile Roughness ◽  
Low Mass ◽  
Roughness Measurements

High-speed tactile roughness measurements set high demand on the trackability of the stylus probe. Because of the features of low mass, low probing force, and high signal linearity, the piezoresistive silicon microprobe is a hopeful candidate for high-speed roughness measurements. This paper investigates the trackability of these microprobes through building a theoretical dynamic model, measuring their resonant response, and performing tip-flight experiments on surfaces with sharp variations. Two microprobes are investigated and compared: one with an integrated silicon tip and one with a diamond tip glued to the end of the cantilever. The result indicates that the microprobe with the silicon tip has high trackability for measurements up to traverse speeds of 10 mm/s, while the resonant response of the microprobe with diamond tip needs to be improved for the application in high-speed topography measurements.

A Resonant Response to Random Excitation

1979 ◽  
Vol 37 (2) ◽  
pp. 382-395
Author(s):  
H. Kurss ◽  
W. Vojir
Keyword(s):  
Random Excitation ◽  
Resonant Response

Resonant Response of a Tuning Fork

1950 ◽  
Vol 18 (3) ◽  
pp. 164-164
Author(s):  
Julius Sumner Miller
Keyword(s):  
Tuning Fork ◽  
Resonant Response

Natural Transition Phenomena on an Axial Compressor Blade

2000 ◽  
Author(s):  
J. D. Hughes ◽  
G. J. Walker
Keyword(s):  
Guide Vane ◽  
Axial Compressor ◽  
Inlet Guide Vane ◽  
Instability Wave ◽  
Blade Loading ◽  
Instability Waves ◽  
Transition Prediction ◽  
Tollmien Schlichting ◽  
Vane Clocking ◽  
Hot Film

Data from a surface hot-film array on the outlet stator of a 1.5 stage axial compressor are analyzed to look for direct evidence of natural transition phenomena. An algorithm is developed to identify instability waves within the Tollmien Schlichting (T-S) frequency range. The algorithm is combined with a turbulent intermittency detection routine to produce space∼time diagrams showing the probability of instability wave occurrence prior to regions of turbulent flow. The paper compares these plots for a range of blade loading, with free-stream conditions corresponding to the maximum and minimum inflow disturbance periodicity produced by inlet guide vane clocking. Extensive regions of amplifying instability waves are identified in nearly all cases. The implications for transition prediction in decelerating flow regions on axial turbomachine blades are discussed.

scholarly journals Multi-region relaxed magnetohydrodynamics in plasmas with slowly changing boundaries—Resonant response of a plasma slab

2017 ◽  
Vol 24 (4) ◽  
pp. 042507 ◽  
Author(s):  
R. L. Dewar ◽  
S. R. Hudson ◽  
A. Bhattacharjee ◽  
Z. Yoshida
Keyword(s):  
Resonant Response ◽  
Plasma Slab
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