Numerical Analyses of an Experimental Device of Travelling Wave Direct Energy Converter

2003 ◽  
Author(s):  
Koji Horita ◽  
Motoo Ishikawa ◽  
Yasuyoshi Yasaka
Keyword(s):  
Travelling Wave ◽  
Experimental Device ◽  
Numerical Analyses ◽  
Energy Converter ◽  
Direct Energy

Performance analysis of experimental device of travelling wave direct energy converter

2006 ◽  
Vol 81 (8-14) ◽  
pp. 1689-1694 ◽  
Author(s):  
M. Ishikawa ◽  
K. Horita ◽  
Y. Yasaka ◽  
T. Takeno ◽  
Y. Tomita
Keyword(s):  
Performance Analysis ◽  
Travelling Wave ◽  
Experimental Device ◽  
Energy Converter ◽  
Direct Energy

Performance prediction of experimental device of CUSP type direct energy converter

2001 ◽  
Author(s):  
Makoto Kaminaga ◽  
Motoo Ishikawa ◽  
Suguru Mima ◽  
Yasunori Yasaka ◽  
Yukihiro Tomita ◽  
...  
Keyword(s):  
Performance Prediction ◽  
Experimental Device ◽  
Energy Converter ◽  
Direct Energy

Numerical Analysis of Experimental Device of Cusp Type Direct Energy Converter

2001 ◽  
Vol 39 (1T) ◽  
pp. 199-202 ◽  
Author(s):  
Motoo Ishikawa ◽  
Makoto Kaminaga ◽  
Suguru Mima ◽  
Yasuyoshi Yasaka ◽  
Yukihiro Tomita ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Experimental Device ◽  
Energy Converter ◽  
Direct Energy

Performance improvement due to additional collectors in a secondary electron direct energy converter simulator

2018 ◽  
Vol 136 ◽  
pp. 157-161
Author(s):  
Satoshi Nakamoto ◽  
Shota Konno ◽  
Kazuya Ichimura ◽  
Hiromasa Takeno ◽  
Yuichi Furuyama ◽  
...  
Keyword(s):  
Performance Improvement ◽  
Secondary Electron ◽  
Energy Converter ◽  
Direct Energy

Improvement of Structure of Traveling Wave Direct Energy Converter Simulator for Ion Flux with Wide Energy Spread

2009 ◽  
Vol 55 (2T) ◽  
pp. 114-117 ◽  
Author(s):  
D. Omoya ◽  
L. C. Bai ◽  
H. Takeno ◽  
Y. Yasaka ◽  
Y. Nakashima
Keyword(s):  
Traveling Wave ◽  
Ion Flux ◽  
Energy Spread ◽  
Energy Converter ◽  
Direct Energy ◽  
Wide Energy

A Traveling Wave Direct Energy Converter for D-3HE Fueled Fusion Reactor

1999 ◽  
Vol 35 (1T) ◽  
pp. 60-66 ◽  
Author(s):  
Hiromu Momota ◽  
Yukihiro Tomita ◽  
Motoo Ishikawa ◽  
Yasuyoshi Yasaka
Keyword(s):  
Traveling Wave ◽  
Fusion Reactor ◽  
Energy Converter ◽  
Direct Energy

Experimental and Numerical Analyses of Radial Turbine Blisks With Regard to Mistuning

2011 ◽  
Author(s):  
Peter Ho¨nisch ◽  
Arnold Ku¨hhorn ◽  
Bernd Beirow
Keyword(s):  
Element Model ◽  
Response Characteristic ◽  
Travelling Wave ◽  
Forced Response ◽  
Numerical Analyses ◽  
Mode Localization ◽  
Radial Turbine ◽  
Main Driver ◽  
Turbine Blisk ◽  
Blade Frequency

The effect of blade frequency mistuning on the forced response of integral radial turbines is studied by means of experimental and numerical analyses. Blade dominated frequencies representing the mistuning are identified based on blade by blade measurements using the example of a MTU ZR140 turbine blisk. Based on these results, numerical simulations of the blade by blade measurements are performed, aiming to update the originally ideal (tuned) finite element model. The damping information to be considered in the update process is taken from results of an experimental modal analysis. The quality of the model is proved by well correlated frequency response functions (FRF) of numerical and experimental analyses. Finally, the models are used to simulate the forced response due to travelling wave excitations. As a result, mode localization phenomena and response amplifications compared to tuned blisks are proved. In order to round off the contribution to a more enhanced understanding of the radial turbine blisk dynamics optically based geometry measurements are performed to assess the influence of geometrical deviations on frequency mistuning. It is shown that geometric imperfections can be the main driver causing a mistuned response characteristic.

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