Numerical Simulation on Transient Characteristics of Closed Loop MHD Experimental Facility

2004 ◽  
Author(s):  
Hidemasa Takana ◽  
Susumu Izumi ◽  
Yoshihiro Okuno ◽  
Hiroyuki Yamasaki
Keyword(s):  
Numerical Simulation ◽  
Closed Loop ◽  
Experimental Facility ◽  
Transient Characteristics

scholarly journals Numerical Simulation of MHD Flow Behavior and Performance in the Disk MHD Generator of Closed Loop Experimental Facility

2006 ◽  
Vol 126 (9) ◽  
pp. 933-939 ◽  
Author(s):  
Alessandro Liberati ◽  
Tomoyuki Murakami ◽  
Yoshihiro Okuno ◽  
Hiroyuki Yamasaki
Keyword(s):  
Numerical Simulation ◽  
Closed Loop ◽  
Flow Behavior ◽  
Mhd Flow ◽  
Experimental Facility ◽  
Mhd Generator ◽  
And Performance

Numerical simulation on operation of closed-loop experimental facility with subsonic MHD generator

2008 ◽  
Vol 163 (1) ◽  
pp. 25-33
Author(s):  
Hidemasa Takana ◽  
Yoshihiro Okuno ◽  
Hiroyuki Yamasaki
Keyword(s):  
Numerical Simulation ◽  
Closed Loop ◽  
Experimental Facility ◽  
Mhd Generator

Numerical Simulation on Performance of Disk MHD Generator in the Closed-Loop Experimental Facility

2006 ◽  
Vol 34 (6) ◽  
pp. 2669-2677 ◽  
Author(s):  
Alessandro Liberati ◽  
Tomoyuki Murakami ◽  
Yoshihiro Okuno ◽  
Hiroyuki Yamasaki
Keyword(s):  
Numerical Simulation ◽  
Closed Loop ◽  
Experimental Facility ◽  
Mhd Generator

scholarly journals On Numerical Simulation Approach for Multiple Resonance Modes in Servo Systems

2017 ◽  
Vol 2017 ◽  
pp. 1-7
Author(s):  
Qixin Zhu ◽  
Hongli Liu ◽  
Yiyi Yin ◽  
Lei Xiong ◽  
Yonghong Zhu
Keyword(s):  
Numerical Simulation ◽  
Mathematical Model ◽  
Closed Loop ◽  
Resonance Mode ◽  
Servo Control ◽  
Simulation Approach ◽  
Servo Systems ◽  
Resonance Modes ◽  
Resonant Part ◽  
The Mathematical Model

Mechanical resonance is one of the most pervasive problems in servo control. Closed-loop simulations are requisite when the servo control system with high accuracy is designed. The mathematical model of resonance mode must be considered when the closed-loop simulations of servo systems are done. There will be a big difference between the simulation results and the real actualities of servo systems when the resonance mode is not considered in simulations. Firstly, the mathematical model of resonance mode is introduced in this paper. This model can be perceived as a product of a differentiation element and an oscillating element. Secondly, the second-order differentiation element is proposed to simulate the resonant part and the oscillating element is proposed to simulate the antiresonant part. Thirdly, the simulation approach for two resonance modes in servo systems is proposed. Similarly, this approach can be extended to the simulation of three or even more resonances in servo systems. Finally, two numerical simulation examples are given.

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