Specifying Steel Properties and Incorporating Forming Effects in Full Vehicle Impact Simulation

2002 ◽  
Author(s):  
D. Zeng ◽  
S. D. Liu ◽  
V. Makam ◽  
S. Shetty ◽  
L. Zhang ◽  
...  
Keyword(s):  
Impact Simulation ◽  
Full Vehicle ◽  
Vehicle Impact ◽  
Steel Properties

Vehicle Impact Simulation

1993 ◽  
Vol 119 (4) ◽  
pp. 598-617 ◽  
Author(s):  
Jerzy W. Wekezer ◽  
Morton S. Oskard ◽  
Roger W. Logan ◽  
Edward Zywicz
Keyword(s):  
Impact Simulation ◽  
Vehicle Impact

Research of Automobile Tire Vertical Stiffness Optimization Method on the Basis of ADAMS/Car

2013 ◽  
Vol 561 ◽  
pp. 527-532
Author(s):  
Ze Peng Wang ◽  
Zhen Yu ◽  
Ke Li
Keyword(s):  
Ride Comfort ◽  
Optimization Method ◽  
Vehicle Model ◽  
Vertical Stiffness ◽  
Automobile Tire ◽  
Full Vehicle ◽  
Stiffness Optimization ◽  
Vehicle Impact ◽  
Simulation Results ◽  
The Impact

Because Tire not only impact on the handling stability of vehicle but also impact on the ride comfort, it is more practical significant that tire vertical stiffness parameters on handling stability and ride of vehicle impact is considered synthetically than considering handling stability and ride singly. In this paper, full vehicle model was built on the basis of ADAMS/Car. The vertical stiffness of tire was only changed and other parameters remain unchanged, then full vehicle analysis was carried out to get the simulation curves. The impact of the vertical stiffness of tires on the handling and stability and ride comfort was obtained from the curves of simulation. The tires of optimized vertical stiffness can be obtained from the comparison of simulation results. Analytical results can be conductive to designing and producing the tire.

Experimental and Analytical Study of the Crashworthiness for the 2005 Ford GT Aluminum Spaceframe

2005 ◽  
Author(s):  
Ari G. Caliskan ◽  
Richard A. Jeryan ◽  
Huibert Mees ◽  
Simon Iregbu
Keyword(s):  
Automobile Industry ◽  
Light Weight ◽  
Rigid Barrier ◽  
Strain Behavior ◽  
Full Vehicle ◽  
Front End ◽  
Aluminum Castings ◽  
Vehicle Impact ◽  
Aluminum Profiles ◽  
6Xxx Series

The use of aluminum structures in the automobile industry have been increasing in the past decade due partly to the demand for light-weight vehicles, and in some instances, lower investment costs. In the case of the 2005 Ford GT, an aluminum spaceframe architecture was chosen. The spaceframe structure consists mainly of extruded 6xxx series aluminum profiles with aluminum castings acting as suspension attachment points. The aluminum castings, located at both the front and rear of the vehicle, also act as nodes to which a number of extrusions are welded. This architecture resulted in a very stiff, yet light-weight vehicle. In addition to stiffness and weight advantages, the use of both aluminum members and the spaceframe construction proved to have good crashworthiness properties for all impact modes. In this paper, the crash performance of the front end of the vehicle consisting of an extruded bumper and double-cell rail system is shown. Once the components were manufactured, specimen level tests were conducted to measure the stress-strain behavior of the extruded material. This information, along with the geometric data of the bumper and rails, was used to create models of the front-end of the vehicle. A series of analyses were conducted using a rigid barrier impact to determine crush loads as well as mode of collapse. Concurrently, the components were assembled and tested using a sled impact facility at speeds comparable to full vehicle impact speeds. The results of the component tests and the analyses showed that the models predicted both the crush loads as well as the crush modes accurately. This validation exercise proved to be key in creating accurate full vehicle models for all the crash modes that are required for certification of the vehicle. As such, development time as well as the number of full vehicle tests was reduced.

Simulation on Injury to Driver under Car Front Crash Condition

2014 ◽  
Vol 643 ◽  
pp. 295-301
Author(s):  
Zhi Yong Jiao ◽  
Jun Jie Li
Keyword(s):  
Impact Test ◽  
Seat Belt ◽  
System Model ◽  
Design Parameters ◽  
Constraint System ◽  
Injury Index ◽  
Impact Simulation ◽  
Vehicle Impact ◽  
Safety Belts ◽  
Front Crash

To study the injury index to driver in front crash, this article uses the MADYMO software to establish the driver constraint system model which including car bodies, safety belts and 50% dummy for impact simulation. The simulation values are close to test ones after contrasted with the vehicle impact test. The influence of design parameters including the D-ring friction coefficient of seat belt, airbag strap and steering column on driver HIC, T3MS, THPC are researched by this model. The results show that: The smaller D-ring friction and a longer airbag strap length and steering column crushing can effectively improve the driver safety.

scholarly journals Refrigeration of COVID-19 Vaccines: Ideal Storage Characteristics, Energy Efficiency and Environmental Impacts of Various Vaccine Options

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1849
Author(s):  
Alexandre F. Santos ◽  
Pedro D. Gaspar ◽  
Heraldo J. L. de Souza
Keyword(s):  
Energy Efficiency ◽  
Environmental Impacts ◽  
Thermal Load ◽  
Storage Condition ◽  
Storage Conditions ◽  
Energy Simulation ◽  
Energy Usage ◽  
Impact Simulation ◽  
Storage Characteristics ◽  
The Ideal

This article considers the ideal storage conditions for multiple vaccine brands, such as Pfizer, Moderna, CoronaVac, Oxford–AstraZeneca, Janssen COVID-19 and Sputnik V. Refrigerant fluid options for each storage condition, thermal load to cool each type of vaccine and environmental impacts of refrigerants are compared. An energy simulation using the EUED (energy usage effectiveness design) index was developed. The Oxford–AstraZeneca, Janssen COVID-19 and CoronaVac vaccines show 9.34-times higher energy efficiency than Pfizer. In addition, a TEWI (total equivalent warming impact) simulation was developed that prioritizes direct environmental impacts and indirect in refrigeration. From this analysis, it is concluded that the cold storage of Oxford–AstraZeneca, Janssen COVID-19 and CoronaVac vaccines in Brazil generates 35-times less environmental impact than the Pfizer vaccine.

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