Screech tone noise and mode switching in supersonic swirling jets

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 1968-1974
Author(s):  
Young-Kil Yu ◽  
Ruey-Hung Chen ◽  
Larry Chew
Keyword(s):  
Mode Switching ◽  
Swirling Jets ◽  
Screech Tone

Screech Tone Noise and Mode Switching in Supersonic Swirling Jets

AIAA Journal ◽  
2000 ◽  
Vol 38 (1) ◽  
pp. 189-189
Author(s):  
Young-Kil Yu ◽  
Ruey-Hung Chen ◽  
Larry Chew
Keyword(s):  
Mode Switching ◽  
Swirling Jets ◽  
Screech Tone

Screech Tone Noise and Mode Switching in Supersonic Swirling Jets

AIAA Journal ◽  
10.2514/2.323 ◽  
1998 ◽  
Vol 36 (11) ◽  
pp. 1968-1974 ◽  
Author(s):  
Young-Kil Yu ◽  
Ruey-Hung Chen ◽  
Larry Chew
Keyword(s):  
Mode Switching ◽  
Swirling Jets ◽  
Screech Tone

Elimination of screech tone noise in supersonic swirling jets

AIAA Journal ◽  
1999 ◽  
Vol 37 ◽  
pp. 998-1000
Author(s):  
Ruey-Hung Chen ◽  
Young-Kil Yu
Keyword(s):  
Swirling Jets ◽  
Screech Tone

scholarly journals Experimental study on screech tone mode switching of supersonic jet flowing through rectangular nozzles

2015 ◽  
Vol 64 (5) ◽  
pp. 054703
Author(s):  
Chen Zhe ◽  
Wu Jiu-Hui ◽  
Chen Xin ◽  
Lei Hao ◽  
Hou Jie-Jie
Keyword(s):  
Experimental Study ◽  
Supersonic Jet ◽  
Mode Switching ◽  
Screech Tone

A STUDY OF SCREECH TONE NOISE OF SUPERSONIC SWIRLING JETS

1997 ◽  
Vol 205 (5) ◽  
pp. 698-705 ◽  
Author(s):  
Y.-K. Yu ◽  
R.-H. Chen
Keyword(s):  
Swirling Jets ◽  
Screech Tone

Elimination of Screech Tone Noise in Supersonic Swirling Jets

AIAA Journal ◽  
1999 ◽  
Vol 37 (8) ◽  
pp. 998-1000 ◽  
Author(s):  
Ruey-Hung Chen ◽  
Young-Kil Yu
Keyword(s):  
Swirling Jets ◽  
Screech Tone

scholarly journals Research on predictive sliding mode control strategy for horizontal vibration of ultra-high-speed elevator car system based on adaptive fuzzy

2021 ◽  
Vol 54 (3-4) ◽  
pp. 360-373
Author(s):  
Hong Wang ◽  
Mingqin Zhang ◽  
Ruijun Zhang ◽  
Lixin Liu
Keyword(s):  
Sliding Mode Control ◽  
High Speed ◽  
Sliding Mode ◽  
Mode Switching ◽  
Parameter Uncertainties ◽  
Horizontal Vibration ◽  
Adaptive Fuzzy ◽  
Mode Control ◽  
System A ◽  
Ultra High Speed

In order to effectively suppress horizontal vibration of the ultra-high-speed elevator car system. Firstly, considering the nonlinearity of guide shoe, parameter uncertainties, and uncertain external disturbances of the elevator car system, a more practical active control model for horizontal vibration of the 4-DOF ultra-high-speed elevator car system is constructed and the rationality of the established model is verified by real elevator experiment. Secondly, a predictive sliding mode controller based on adaptive fuzzy (PSMC-AF) is proposed to reduce the horizontal vibration of the car system, the predictive sliding mode control law is achieved by optimizing the predictive sliding mode performance index. Simultaneously, in order to decrease the influence of uncertainty of the car system, a fuzzy logic system (FLS) is designed to approximate the compound uncertain disturbance term (CUDT) on-line. Furthermore, the continuous smooth hyperbolic tangent function (HTF) is introduced into the sliding mode switching term to compensate the fuzzy approximation error. The adaptive laws are designed to estimate the error gain and slope parameter, so as to increase the robustness of the system. Finally, numerical simulations are conducted on some representative guide rail excitations and the results are compared to the existing solution and passive system. The analysis has confirmed the effectiveness and robustness of the proposed control method.

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