Application of Tailor Rolled Blank in Vehicle Front End for Frontal Impact

2007 ◽  
Author(s):  
R. J. Yang ◽  
Y. Fu ◽  
G. Li
Keyword(s):  
Frontal Impact ◽  
Tailor Rolled Blank ◽  
Front End

Integration of Hydroforming Analysis of Front-End Structures Into Full Vehicle Crash Analysis

2002 ◽  
Author(s):  
Kumar Mahadevan ◽  
Omar Faruque ◽  
James Cheng ◽  
Yishan J. Qiu ◽  
Barry L. Dombek
Keyword(s):  
Impact Behavior ◽  
Crash Analysis ◽  
Frontal Impact ◽  
Forming Simulation ◽  
Full Vehicle ◽  
Front End ◽  
Vehicle Crash ◽  
Mapping Process ◽  
Hydroforming Process ◽  
Property Changes

Changes in gauge and material properties are the trademarks of hydroforming process used for any parts. These changes may be large enough to affect the vehicle responses under impact loading in a significant way. An investigation was carried out to determine how full vehicle crash responses are affected by these changes and the findings are reported in this paper. Key to this study has been a methodology to map the gauge and property changes, obtained from a forming simulation, to FEA models created for crash analyses. The mapping process thus allows one to consider the property and gauge changes as an initial condition during crash simulation. A number of full vehicle crash simulations were conducted and the results are compared with the corresponding test data. The entire procedure has been verified using the CAE models developed for simulating hydroforming and frontal impact behavior of a vehicle program. The implementation of the developed methodology to other vehicle programs is straightforward.

Frontal Impact Test and Analysis on an Aluminum Front-End Structure

2001 ◽  
Author(s):  
Ari G. Caliskan ◽  
Rama Koganti
Keyword(s):  
Impact Test ◽  
Load Transfer ◽  
Frontal Impact ◽  
Final Model ◽  
Front End ◽  
Aluminum Extrusions ◽  
Cross Member ◽  
Front End Module ◽  
The Impact ◽  
6Xxx Series

Abstract A frontal impact test was performed on a front-end module consisting of 6xxx series aluminum extrusions, and some 5xxx series aluminum stampings as reinforcements. The front end structure consists mainly of a bumper, cross member, radiator support, front and backup lower rails, upper rails, and shock tower support. In addition to the main structure, a subframe containing the engine was also attached to the back-up rails. The front-end module was mounted on a sled at the upper and lower A-pillar points as well as at the back-up rail. In addition to measuring the barrier forces, load cells were located behind the main structural members to determine load transfer. The results of the tests showed progressive folding of the crush rails, and adequate absorption of the impact energy. To aid in the design, a CAE model of the front-end was created to determine the crash behavior of the structure during frontal impact. The final model, which took into account, the material properties of the weld joints showed good agreement with test results.

Low-voltage BIMOS AM front-end amplifier

1990 ◽  
Vol 137 (1) ◽  
pp. 57 ◽  
Author(s):  
M. Steyaert ◽  
Z. Chang
Keyword(s):  
Low Voltage ◽  
Front End

Becoming the Nuclear-Front-End

2017 ◽  
Vol 47 (189) ◽  
Author(s):  
Patrick Schukalla
Keyword(s):  
Nuclear Reactor ◽  
Chemical Elements ◽  
High Technology ◽  
Power Production ◽  
Uranium Mining ◽  
Nuclear Industry ◽  
Current State ◽  
Front End ◽  
Production And Consumption ◽  
Uranium Exploration

Uranium mining often escapes the attention of debates around the nuclear industries. The chemical elements’ representations are focused on the nuclear reactor. The article explores what I refer to as becoming the nuclear front – the uranium mining frontier’s expansion to Tanzania, its historical entanglements and current state. The geographies of the nuclear industries parallel dominant patterns and the unevenness of the global divisions of labour, resource production and consumption. Clearly related to the developments and expectations in the field of atomic power production, uranium exploration and the gathering of geological knowledge on resource potentiality remains a peripheral realm of the technopolitical perceptions of the nuclear fuel chain. Seen as less spectacular and less associated with high-technology than the better-known elements of the nuclear industry the article thus aims to shine light on the processes that pre-figure uranium mining by looking at the example of Tanzania.

Análisis de la aplicación de pruebas funcionales y pruebas de usabilidad de software en el desarrollo de sistemas web

2019 ◽  
Vol 3 (3.4.) ◽  
pp. 180-190
Author(s):  
Natalia Patricia Layedra Larrea ◽  
Marco Vinicio Ramos Valencia ◽  
Blanca Faustina Hidalgo Ponce ◽  
Angela Elizabeth Samaniego Orozco
Keyword(s):  
Front End ◽  
El Sistema

El objetivo general del presente trabajo es analizar la aplicación de pruebas funcionales y pruebas de usabilidad en sistemas web. Para aplicar dichas pruebas se desarrolló un sistema web para la gestión de reuniones eclesiásticas para la Iglesia Bíblica Riobamba. El sistema fue desarrollado utilizando la metodología de desarrollo SCRUM, que permitió realizar un análisis de los requerimientos levantados tanto en prioridad de desarrollo como en el tiempo en que se realiza cada uno; además, se utilizó la tecnología AngularJS para el front end, mientras que para el back end se trabajó con el lenguaje de programación JAVA en el entorno de desarrollo Netbeans 8.2, y servicios RestFULL que permiten la conexión entre el front end y el back end. Finalmente, para la gestión de la base de datos se utilizó PostgreSQL. Sobre el sistema se han ejecutado pruebas de funcionamiento y usabilidad. Para obtener los resultados de la usabilidad del sistema se aplicó una encuesta de usabilidad a un grupo de 20 usuarios con distintos roles dentro del sistema, de los cuales el 90.14% manifestaron que pudieron usarlo fácilmente. Las pruebas de funcionamiento se aplicaron en el módulo de autenticación de usuarios, considerando que existen varios roles. Como resultado de las pruebas de funcionamiento se obtuvo un funcionamiento adecuado del módulo, en base a lo esperado por los usuarios.

Study on Improving Overall Efficiency of Front-end Power Supplies by Employing Method of Surge Energy Recycling

2012 ◽  
Vol 132 (7) ◽  
pp. 684-690 ◽  
Author(s):  
Toshikazu Okubo ◽  
Hiroyuki Shoji ◽  
Hideho Yamamura ◽  
Shinobu Irikura ◽  
Naoki Maru
Keyword(s):  
Power Supplies ◽  
Front End ◽  
Overall Efficiency

SUCCESS FACTORS IN THE FRONT END OF INNOVATION

2018 ◽  
Vol 2018 ◽  
pp. 926-926
Author(s):  
Alexander Vélez ◽  
◽  
Jose M Barrutia ◽  
Carmen Etxebarria
Keyword(s):  
Success Factors ◽  
Front End

Front End of Line Through Silicon Via (TSV) Integration

2008 ◽  
Author(s):  
Subhash L. Shinde ◽  
Todd M. Bauer ◽  
Jordan E. Massad ◽  
Dale L. Hetherington
Keyword(s):  
Through Silicon Via ◽  
Front End
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