Sweeping through a second order resonance

1987 ◽  
Vol 43 (1-4) ◽  
pp. 99-112 ◽  
Author(s):  
Jacques Henrard ◽  
Anne Vleeschauwer
Keyword(s):  
Second Order ◽  
Order Resonance

Second order resonance Raman scattering in As2S3 glass

1975 ◽  
Vol 17 (12) ◽  
pp. 1475-1478 ◽  
Author(s):  
R.E. Howard ◽  
P.B. Macedo ◽  
C.T. Moynihan
Keyword(s):  
Raman Scattering ◽  
Resonance Raman ◽  
Second Order ◽  
Resonance Raman Scattering ◽  
Order Resonance

A Direct Method for Searching Power System Second Order Resonance Point

2013 ◽  
Vol 325-326 ◽  
pp. 594-598
Author(s):  
De Qing Lin ◽  
Xiao Dong Yuan ◽  
Qun Li ◽  
Yong Fang
Keyword(s):  
Power System ◽  
Dynamic Characteristics ◽  
Direct Method ◽  
Second Order ◽  
System Dynamic ◽  
Resonance Point ◽  
Order Resonance ◽  
Depth Study ◽  
Point Solution ◽  
Point Search

The dynamic characteristics of the power system will be a sharp deterioration near the second order resonance point. In-depth study of the Power system dynamic characteristics near the second order resonance point, and then how to cause the dynamic characteristics of the system worse at the second order resonance point near the stable boundary, need to quickly search system of second order resonance point. Based on the principle of minimal expansion system method, this paper presents the direct method for search the second order resonance point in power system. For the N dimensions differential dynamic system was established in the 4N+4 dimension expansion equations. The power system second order resonance point search is changed into expanding equation fixed point solution. Significantly reduce computational load, improve the search accuracy for solving second order resonance point calculation. For in-depth study of power system dynamic characteristics near the second order resonance point have a certain value.

First and Second-Order Resonance Raman Process in Graphite and Single Wall Carbon Nanotubes

2002 ◽  
Vol 41 (Part 1, No. 7B) ◽  
pp. 4878-4882 ◽  
Author(s):  
Riichiro Saito ◽  
Ado Jorio ◽  
Antonio G. Souza Filho ◽  
Gene Dresselhaus ◽  
Mildred S. Dresselhaus ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Resonance Raman ◽  
Second Order ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Order Resonance ◽  
Raman Process

The Trapezoid Counterweight Method in Dynamic Balance of Symmetric Flexible Rotor

2017 ◽  
Vol 868 ◽  
pp. 201-206
Author(s):  
Han Hui ◽  
Li Na Hao ◽  
Zhang Qi ◽  
Gao Xiang
Keyword(s):  
Dynamic Balance ◽  
Reaction Force ◽  
Resonance Region ◽  
Second Order ◽  
Theoretical Research ◽  
Response Analysis ◽  
Water Pump ◽  
Flexible Rotor ◽  
Order Resonance ◽  
First Order

Steam turbine generator unit, water pump and other high speed revolution symmetric flexible rotor were regarded as research objects in this paper. According to variation characteristic of rotor shaft in rigid and flexible working mode, nine-reel high pressure water pump rotor was analyzed. The former four-order intrinsic frequency of flexible rotor was obtained by modal analysis and harmonic response analysis. The methods of reaction force response and unbalance response were been studied after first order and second order resonance region eliminating in different modes of simple harmonic exciting force. Based on above theoretical research results, trapezoid counterweight method was proposed for dynamic balance of flexible rotor. This method solved problem that rigid dynamic balance of low speed rotor was destroyed after first order and second order resonance region counter weight in dynamic balance of flexible rotor. The dynamic balancing techniques of flexible rotor could be improved the qualities of rotor and its relative products by this method, eliminating the vibration of unbalance mass of products radically.

scholarly journals Plasmon ruler with gold nanorod dimers: utilizing the second-order resonance

2015 ◽  
Vol 40 (7) ◽  
pp. 1571 ◽  
Author(s):  
Maxim R. Shcherbakov ◽  
Anton T. Le ◽  
Natalia Dubrovina ◽  
Anatole Lupu ◽  
Andrey A. Fedyanin
Keyword(s):  
Second Order ◽  
Gold Nanorod ◽  
Order Resonance ◽  
Plasmon Ruler
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