Statistical bounds on multivariable frequency response: an extension of the generalised Nyquist criterion

1986 ◽  
Vol 133 (3) ◽  
pp. 97 ◽  
Author(s):  
D.J. Cloud ◽  
B. Kouvaritakis
Keyword(s):  
Frequency Response ◽  
Nyquist Criterion

Dynamic Stability of Mechanical Structures Containing Externally Pressurized Gas-Lubricated Thrust Bearings

1988 ◽  
Vol 110 (2) ◽  
pp. 271-278 ◽  
Author(s):  
P. Plessers ◽  
R. Snoeys
Keyword(s):  
Frequency Response ◽  
Stability Criterion ◽  
Feedback Loop ◽  
Response Functions ◽  
Thrust Bearings ◽  
Supporting Structure ◽  
Nyquist Criterion ◽  
The Stability ◽  
Stability Limits ◽  
Gas Bearing

A stability criterion is presented to evaluate instability phenomena in mechanical systems containing externally pressurized gas bearings. For this criterion, the gas bearing films and the supporting structure are characterized separately by means of frequency response functions. The overall system may be considered as a feedback-loop for which the Nyquist criterion will define stability limits. The analysis demonstrates the interaction between the dynamics of the supporting structure and the air gap. The stability criterion is generalized for systems containing more than one gas film. The stability criterion is verified experimentally.

Statistics of frequency-response estimates

1990 ◽  
Vol 137 (5) ◽  
pp. 290 ◽  
Author(s):  
J.L. Douce ◽  
L. Balmer
Keyword(s):  
Frequency Response

Estimation and Reduction of Motor Input Surge Voltage using Frequency Response Analysis

2012 ◽  
Vol 132 (8) ◽  
pp. 630-637
Author(s):  
Toru Wakimoto ◽  
Yoshimitsu Takahashi ◽  
Norihito Kimura ◽  
Yukitoshi Narumi ◽  
Naoki Hayakawa
Keyword(s):  
Frequency Response ◽  
Response Analysis ◽  
Frequency Response Analysis

Identification of Trouble of Transformer by Frequency Response Analysis

2009 ◽  
Vol 129 (4) ◽  
pp. 517-525 ◽  
Author(s):  
Satoru Miyazaki ◽  
Yoshinobu Mizutani ◽  
Hiroshi Suzuki ◽  
Michiharu Ichikawa
Keyword(s):  
Frequency Response ◽  
Response Analysis ◽  
Frequency Response Analysis

Diagnosis Criterion of Abnormality of Transformer Winding by Frequency Response Analysis (FRA)

2016 ◽  
Vol 136 (7) ◽  
pp. 654-662
Author(s):  
Satoru Miyazaki ◽  
Yoshinobu Mizutani ◽  
Akira Taguchi ◽  
Junichi Murakami ◽  
Naokazu Tsuji ◽  
...  
Keyword(s):  
Frequency Response ◽  
Response Analysis ◽  
Frequency Response Analysis ◽  
Transformer Winding ◽  
Diagnosis Criterion
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