scholarly journals Analysis of Tracheal Secretion in Healthy Horses Undergoing a Vaquejada Simulation Test

2014 ◽  
Vol 04 (10) ◽  
pp. 232-238 ◽  
Author(s):  
Natália Matos Souza Azevedo ◽  
Márlon de Vasconcelos Azevedo ◽  
Paulo Fernandes de Lima ◽  
Hélio Cordeiro Manso Filho
Keyword(s):  
Simulation Test ◽  
Tracheal Secretion

scholarly journals Periodic breathing during hypoxia altitude simulation test

Thorax ◽  
2021 ◽  
pp. thoraxjnl-2021-217320
Author(s):  
Santiago C. Arce ◽  
Guillermo B. Semeniuk ◽  
Eduardo L. De Vito
Keyword(s):  
Periodic Breathing ◽  
Simulation Test

Ground Flutter Simulation Test Based on Reduced Order Modeling of Aerodynamics by CFD/CSD Coupling Method

2019 ◽  
Vol 11 (01) ◽  
pp. 1950008
Author(s):  
Binwen Wang ◽  
Xueling Fan
Keyword(s):  
Aerodynamic Force ◽  
Test System ◽  
Simulation Test ◽  
Robust Controller ◽  
Test Technique ◽  
Reduced Order ◽  
Aerodynamic Model ◽  
Flutter Boundary ◽  
Computational Fluid Dynamics Cfd ◽  
Good Agreement

Flutter is an aeroelastic phenomenon that may cause severe damage to aircraft. Traditional flutter evaluation methods have many disadvantages (e.g., complex, costly and time-consuming) which could be overcome by ground flutter test technique. In this study, an unsteady aerodynamic model is obtained using computational fluid dynamics (CFD) code according to the procedure of frequency domain aerodynamic calculation. Then, the genetic algorithm (GA) method is adopted to optimize interpolation points for both excitation and response. Furthermore, the minimum-state method is utilized for rational fitting so as to establish an aerodynamic model in time domain. The aerodynamic force is simulated through exciters and the precision of simulation is guaranteed by multi-input and multi-output robust controller. Finally, ground flutter simulation test system is employed to acquire the flutter boundary through response under a range of air speeds. A good agreement is observed for both velocity and frequency of flutter between the test and modeling results.

scholarly journals The design and simulation test of wireless antenna protection network

2013 ◽  
Vol 418 ◽  
pp. 012046
Author(s):  
Zipeng Chen ◽  
Yawen Dai ◽  
Peng Li ◽  
Zhuoqiu Li
Keyword(s):  
Simulation Test

scholarly journals The Development of Electric Arc Fault Simulation Test Device

2013 ◽  
Vol 52 ◽  
pp. 297-301 ◽  
Author(s):  
Zi-bo Qi ◽  
Wei Gao ◽  
Ying-cong Zhang
Keyword(s):  
Fault Simulation ◽  
Electric Arc ◽  
Simulation Test ◽  
Test Device

Study on Sequential Compliance Method Influenced by Shape Parameter of Weibull Distribution

2011 ◽  
Vol 189-193 ◽  
pp. 4361-4364 ◽  
Author(s):  
Hong Liang Lou ◽  
Xing Lin Li ◽  
Xian Zhao Xu ◽  
Yang Ping Zhang ◽  
Zhong Hua Yu
Keyword(s):  
Weibull Distribution ◽  
Shape Parameter ◽  
Weibull Distributions ◽  
Simulation Test ◽  
Consumer’S Risk ◽  
Producer’S Risk ◽  
Rejection Probability

When sequential compliance method is used for Weibull distributions, the shape parameter is usually considered to be fixed. However, because of the life of products are determined by many factors, the shape parameter is variational in practice, that is to say, the shape parameter in the criterions is different from that in the practice. In this paper, the changes of acceptance and rejection probability are researched by the influence of shape parameter changes. Finally, by means of simulation test, changes on the shape parameter affecting on the probability of acceptance and rejection are quantitatively analyzed. As a result, the larger the gap on the shape parameter in the criterions and in the practice is, the larger the gap on the producer’s risk and the consumer’s risk.

Sign in / Sign up

Export Citation Format

Share Document