scholarly journals Asymptotically Median Unbiased Estimation of Coefficient Variance in a Time Varying Parameter Model

10.3386/t0201 ◽  
1996 ◽  
Author(s):  
James Stock ◽  
Mark Watson
Keyword(s):  
Unbiased Estimation ◽  
Time Varying ◽  
Time Varying Parameter ◽  
Median Unbiased Estimation

Capital mobility in Sweden: a time-varying parameter approach

2007 ◽  
Vol 14 (15) ◽  
pp. 1115-1118 ◽  
Author(s):  
Abdulnasser Hatemi-J ◽  
R. Scott Hacker
Keyword(s):  
Capital Mobility ◽  
Time Varying ◽  
Time Varying Parameter ◽  
Parameter Approach

Influence of Axial Excitations and of Boundary Conditions on the Parametric Instability of a Beam

1995 ◽  
Author(s):  
Régis Dufour ◽  
Alain Berlioz ◽  
Thomas Streule
Keyword(s):  
Finite Element ◽  
Boundary Conditions ◽  
Ritz Method ◽  
Parametric Instability ◽  
Experimental Tests ◽  
Time Varying ◽  
Periodic Force ◽  
Modal Reduction ◽  
Time Varying Parameter ◽  
The Stability

Abstract In this paper the stability of the lateral dynamic behavior of a pinned-pinned, clamped-pinned and clamped-clamped beam under axial periodic force or torque is studied. The time-varying parameter equations are derived using the Rayleigh-Ritz method. The stability analysis of the solution is based on Floquet’s theory and investigated in detail. The Rayleigh-Ritz results are compared to those of a finite element modal reduction. It shows that the lateral instabilities of the beam depend on the forcing frequency, the type of excitation and the boundary conditions. Several experimental tests enable the validation of the numerical results.

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