Multidegrees-of-freedom effective force testing: a feasibility study and robust stability assessment

2013 ◽  
Vol 42 (13) ◽  
pp. 1985-2002 ◽  
Author(s):  
Narutoshi Nakata ◽  
Erin Krug
Keyword(s):  
Feasibility Study ◽  
Robust Stability ◽  
Stability Assessment ◽  
Effective Force ◽  
Effective Force Testing

scholarly journals Development of a reference material for Staphylococcus aureus enterotoxin A in cheese: Feasibility study, processing, homogeneity and stability assessment

2015 ◽  
Vol 168 ◽  
pp. 241-246 ◽  
Author(s):  
R. Zeleny ◽  
H. Emteborg ◽  
J. Charoud-Got ◽  
H. Schimmel ◽  
Y. Nia ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Reference Material ◽  
Feasibility Study ◽  
Stability Assessment

Experimental implementation and verification of multi-degrees-of-freedom effective force testing

2013 ◽  
Vol 43 (3) ◽  
pp. 413-428 ◽  
Author(s):  
Narutoshi Nakata ◽  
Erin Krug ◽  
Aaron King
Keyword(s):  
Degrees Of Freedom ◽  
Effective Force ◽  
Experimental Implementation ◽  
Effective Force Testing

Nonlinear System Modeling and Velocity Feedback Compensation for Effective Force Testing

2005 ◽  
Vol 131 (3) ◽  
pp. 244-253 ◽  
Author(s):  
Jian Zhao ◽  
Carol Shield ◽  
Catharine French ◽  
Thomas Posbergh
Keyword(s):  
Nonlinear System ◽  
System Modeling ◽  
Velocity Feedback ◽  
Nonlinear System Modeling ◽  
Effective Force ◽  
Feedback Compensation ◽  
Effective Force Testing

An Efficient μ-Analysis Approach to Robust Stability Assessment of Large-Scale Power Systems

2007 ◽  
Vol 36 (1) ◽  
pp. 28-46
Author(s):  
R. Castellanos B. ◽  
A. R. Messina
Keyword(s):  
Power Systems ◽  
Robust Stability ◽  
Large Scale ◽  
Analysis Approach ◽  
Stability Assessment

Validation of loop shaping force feedback controller for nonlinear effective force testing

2013 ◽  
Vol 21 (14) ◽  
pp. 2773-2786 ◽  
Author(s):  
Narutoshi Nakata ◽  
Erin Krug
Keyword(s):  
Force Feedback ◽  
Feedback Controller ◽  
Effective Force ◽  
Loop Shaping ◽  
Effective Force Testing

Feasibility study for producing a carrot/potato matrix reference material for 11 selected pesticides at EU MRL level: Material processing, homogeneity and stability assessment

2012 ◽  
Vol 132 (1) ◽  
pp. 567-573 ◽  
Author(s):  
Helena Saldanha ◽  
Berit Sejerøe-Olsen ◽  
Franz Ulberth ◽  
Hendrik Emons ◽  
Reinhard Zeleny
Keyword(s):  
Material Processing ◽  
Reference Material ◽  
Feasibility Study ◽  
Stability Assessment ◽  
Matrix Reference Material

Dynamic Force Loading Strategy for Effective Force Testing Considering Natural Velocity Feedback Compensation and Nonlinearity

2020 ◽  
pp. 2150007
Author(s):  
Zhen Wang ◽  
Yong Ding ◽  
Aming Shi ◽  
Xizhan Ning ◽  
Bin Wu
Keyword(s):  
Control Synthesis ◽  
Dynamic Force ◽  
Gradient Descent Method ◽  
Structural Dynamic ◽  
Velocity Feedback ◽  
Force Loading ◽  
Effective Force ◽  
Loading System ◽  
Effective Force Testing ◽  
Mcs Method

The effective force testing is a promising seismic testing method for evaluating the structural dynamic response to earthquakes for conciseness and efficiency. However, two challenging loading issues are associated with this method, i.e. the natural velocity feedback (NVF) and nonlinearities related to the interaction between the loading system and specimen, thereby hindering its development and extensive applications. To address these issues, this study proposes a dynamic force loading strategy using a hybrid algorithm with linear compensation for NVF and model reference adaptive control via the minimal control synthesis (MCS) method. Online identification of linear compensation gain in preliminary tests is conceived based on the gradient descent method. A series of numerical simulations on a nonlinear loading system model with linear/trilinear single/two degree(s)-of-freedom specimens are conducted using five loading strategies, including linear and nonlinear compensations and MCS method. Comparative studies show that the proposed method and nonlinear compensation strategy outperform the other three methods, and sometimes the proposed method performs best. In summary, the proposed method is promising because of its accuracy and robustness as well as its ease of implementation and cost-effectiveness.

Sign in / Sign up

Export Citation Format

Share Document