Vehicle Dynamic Simulation for Reconstruction of Rollover Crashes

2006 ◽  
Author(s):  
Riaz A. Sayed ◽  
Pierre Delaigue ◽  
Azim Eskandarian ◽  
Kennerely Digges
Keyword(s):  
Computer Simulation ◽  
Vehicle Dynamics ◽  
Real Life ◽  
Accident Analysis ◽  
Complex Phenomenon ◽  
Vehicle Dynamic ◽  
Vehicle Rollover ◽  
Evidence Analysis ◽  
Vehicle Dynamic Simulation ◽  
3D Computer Simulation

Vehicle rollover crashes are the most severe in terms of occupant's fatalities and injuries. On average rollover crashes are responsible for more then 10,000 fatalities annually. Vehicle rollover is a very complex phenomenon. Simple static analysis and evidence analysis may not be sufficient to provide insight on the vehicle dynamic behavior during the pre-roll phase i.e. from the point of initiation of the crash to the beginning of the first airborne phase. 3D computer simulation provides one of the most comprehensive tools in accident analysis and reconstruction. The main objective of this research was to obtain accurate vehicle pre roll dynamics data in real life rollover crashes using commercially available vehicle dynamics and simulation programs.

Real-Time Simulation Study of Dynamics for Electric Drive Tracked Vehicle Based on Vortex

2012 ◽  
Vol 263-266 ◽  
pp. 595-599
Author(s):  
Bing Li ◽  
Jianhua Zheng ◽  
Yang Hui Zhou ◽  
Li Xi Luo
Keyword(s):  
Real Time ◽  
Electric Drive ◽  
Vehicle Dynamics ◽  
High Accuracy ◽  
Vehicle Dynamic ◽  
Dynamics Model ◽  
Tracked Vehicle ◽  
Real Time Simulation ◽  
Time Simulation ◽  
Vehicle Dynamic Simulation

Aiming at the problem of real-time simulation of vehicle dynamics. Dynamic model of tracked vehicle was built in Vortex. Base class of vehicle was secondary developed to apply torque to the sprockets directly. Finally, dynamics model of electric drive tracked vehicle was established. Under different conditions，the dynamics real-time simulation was carried out. The results showed that the vehicle dynamic simulation in Vortex ensures high accuracy and also has a good real-time.

scholarly journals Vehicle Dynamic Simulation Possibilities Using AVL Cruise M

2020 ◽  
Vol 5 (2) ◽  
pp. 309-323
Author(s):  
Dániel Nemes ◽  
Tibor Pálfi ◽  
Sándor Hajdu
Keyword(s):  
Dynamic Simulation ◽  
User Interfaces ◽  
Vehicle Dynamics ◽  
Simulation Software ◽  
Vehicle Dynamic ◽  
Vehicle Simulation ◽  
Speed Up ◽  
Vehicle Dynamic Simulation ◽  
Dynamics Simulations ◽  
Avl Cruise

In most cases, when creating vehicle dynamics simulations, we need software that can speed up model creation and simulation. There are many programs on the market for this purpose, but they have different knowledge and user interfaces. We present in this article briefly introduces the use of one of the market's leading vehicle simulation software, the AVL Cruise M.

scholarly journals Calculators as Facilitators of Understanding Computational and Mathematical Contexts

2019 ◽  
Vol 1 (1) ◽  
pp. 177-183
Author(s):  
Jan Guncaga ◽  
Lilla Korenova ◽  
Jozef Hvorecky
Keyword(s):  
Soft Skills ◽  
Real Life ◽  
Theoretical Background ◽  
Learning Processes ◽  
Complex Phenomenon ◽  
Learning To Learn ◽  
Life Problems ◽  
The Subject ◽  
The Relationship

AbstractLearning is a complex phenomenon. Contemporary theories of education underline active participation of learners in their learning processes. One of the key arguments supporting this approach is the learner’s simultaneous and unconscious development of their ability of “learning to learn”. This ability belongs to the soft skills highly valued by employers today.For Mathematics Education, it means that teachers have to go beyond making calculations and memorizing formulas. We have to teach the subject in its social context. When the students start understanding the relationship between real-life problems and the role of numbers and formulas for their solutions, their learning becomes a part of their tacit knowledge. Below we explain the theoretical background of our approach and provide examples of such activities.

A Road Map for the Validation, Verification and Testing of Discrete Event Simulation

2011 ◽  
pp. 3306-3313 ◽  
Author(s):  
Evon M. O. Abu-Taieh ◽  
Asim Abdel Rahman El Sheikh
Keyword(s):  
Computer Simulation ◽  
Service Delivery ◽  
Discrete Event ◽  
Real Life ◽  
Safety Net ◽  
Simulation Technique ◽  
Road Map ◽  
Life Problems ◽  
Computer Simulation Technique ◽  
Task Oriented

The aim of this chapter is to give an elaborate reasoning for the motivation for Validation, Verification, and Testing (VV&T) in Simulation. Thereby, defining Simulation in its broadest aspect as embodying a certain model to represent the behavior of a system, whether that may be an economic or an engineering one, with which conducting experiments is attainable. Such a technique enables the management, when studying models currently used, to take appropriate measures and make fitting decisions that would further complement today’s growth sustainability efforts, apart from cost decrease, as well as service delivery assurance. As such, the Computer Simulation technique contributed in cost decline; depicting the “cause and effect,” pinpointing task-oriented needs or service delivery assurance, exploring possible alternatives, identifying problems, as well as proposing streamlined, measurable, deliverable, solutions, providing the platform for change strategy introduction, introducing potential prudent investment opportunities, and finally, providing a safety net when conducting training courses. Yet, the simulation development process is hindered due to many reasons. Like a rose, Computer Simulation technique, does not exist without thorns, of which the length, as well as the communication during the development life cycle. Simulation reflects real-life problems; hence, it addresses numerous scenarios with handful of variables. Not only is it costly, as well as liable for human judgment, but also, the results are complicated and can be misinterpreted.

Rationale for a new vehicle dynamic convention

2020 ◽  
pp. 107754632093983
Author(s):  
Dan Williams ◽  
Don Margolis
Keyword(s):  
Vehicle Dynamics ◽  
Research Result ◽  
Slip Angle ◽  
Clear Definition ◽  
Vehicle Dynamic ◽  
Conventional Model ◽  
Accepted Standard ◽  
New Research

The term “slip angle” has been inconsistently applied in the vehicle dynamics field for some time, even in the presence of a clear definition in the SAE J670 standard defining vehicle dynamic terms. This work proposes the opposite of the Society of Automotive Engineers slip angle convention, not a completely unknown concept in the literature. This proposed slip angle convention is combined with a simple yet novel convention change for axle location. Differences between the conventional model and the new conventions are discussed, and the differences between the proposed convention and SAE J670 are clearly delineated. This work is intended as a reference to be used in the vehicle dynamics community by any researcher wishing to work with a model more intuitively pleasing and widely applicable than the accepted standard. This work does not present a particular new research result. Rather, it provides context on the often confusing choice of vehicle dynamic conventions and suggests a preferable selection.

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