Crash Test Software Analysis

2002 ◽  
Author(s):  
Justin F. Harrison ◽  
Ionut Radu ◽  
Alan J. Babcock ◽  
Beth A. Todd
Keyword(s):  
Automotive Industry ◽  
Simulation Software ◽  
Crash Test ◽  
Software Analysis ◽  
Design Engineers ◽  
Software Packages ◽  
The Disabled ◽  
Safety Features ◽  
Physical Construction ◽  
Advanced Computer

The development of highly advanced computer simulation software packages has enabled design engineers to more effectively integrate safety features into their designs. Designs can be tested long before any physical construction ever begins. This saves money, allowing more extensive testing to be performed, and it also saves time, expediting the process of moving concept to reality. In the automotive industry, such software can be especially useful, since computer simulations can be run over and over again, making it possible to observe the effects of adjusting single variables in dynamic situations. This has opened the door for testing of non-typical occupants. Restraints and safety devices are no longer designed to suit the needs of the average person; they can be tailored to account for all body types, or even for the disabled.

Weldability and Toughness Evaluation of Ceramic Reinforced Steel Matrix Composites (TiB2-RSMC)

2011 ◽  
Vol 264-265 ◽  
pp. 475-483 ◽  
Author(s):  
E. Bayraktar ◽  
F. Ayari ◽  
D. Katundi ◽  
J.P. Chevalier ◽  
Frédéric Bonnet
Keyword(s):  
Automotive Industry ◽  
Crash Test ◽  
Steel Matrix ◽  
Matrix Composites ◽  
Ceramic Particles ◽  
Iron And Steel ◽  
Specific Strength ◽  
Toughness Evaluation ◽  
Reinforced Steel ◽  
Strength And Stiffness

This paper reports the production and weldability and toughness evaluation of TiB2 (ceramic particles) reinforced steel matrix composites. These ceramic particles are optimal reinforcements for steel matrix composites because of their high thermal stability at higher temperatures, high modulus of elasticity, good weldability, low density and relative stability within a steel matrix. This new composite family has received much attention as potential structural materials due to their high specific strength and stiffness. Thus, there is significant interest in developing iron and steel matrix composites and evaluating their dynamic behaviors due to their potential for use in the automotive industry. The goal of the research described in this paper is to study the usage of this new steel family in the manufacture of light structures. Therefore, titanium diboride TiB2 reinforced steel matrix composites were characterized by optical and scanning electron microscopy. The dynamic behaviours of the base metal and welded specimens were tested under impact crash test conditions.

scholarly journals Reproducibility of Free Energy Calculations across Different Molecular Simulation Software Packages

2018 ◽  
Vol 14 (11) ◽  
pp. 5567-5582 ◽  
Author(s):  
Hannes H. Loeffler ◽  
Stefano Bosisio ◽  
Guilherme Duarte Ramos Matos ◽  
Donghyuk Suh ◽  
Benoit Roux ◽  
...  
Keyword(s):  
Free Energy ◽  
Molecular Simulation ◽  
Simulation Software ◽  
Free Energy Calculations ◽  
Energy Calculations ◽  
Software Packages

Design and Implementation of Hopping Frequency Sequences with Given Minimum Gap Based on FPGA

2013 ◽  
Vol 765-767 ◽  
pp. 2641-2646
Author(s):  
Peng Fei Li ◽  
Xiao Chun Ma ◽  
Jia You Song
Keyword(s):  
System Performance ◽  
Large Scale ◽  
Design Method ◽  
Simulation Software ◽  
Matlab Simulation ◽  
Software Analysis ◽  
Design And Implementation ◽  
Program Function ◽  
Design Idea ◽  
Scale Design

In order to design given minimum gap hopping sequences based on dual sub-bands for technology requirement, with Matlab simulation software analysis and optimize system, performance and design idea of hopping sequences of given minimum gap is expounded. The design method based on hardware of given minimum gap hopping sequences based on dual sub-bands is given. System software uses Quartus II8.0 platform and VHDL language. The language has fine characteristics of transplantation, long lifecycle, powerful description and support large scale design and logic unit recycled. The design has parameter adjustment repeating program function and reference application value in design of hopping-frequency communication hardware.

Local Weak Support Effect on the Stability of Surrounding Rocks in Deep Roadway

2014 ◽  
Vol 945-949 ◽  
pp. 1232-1235 ◽  
Author(s):  
Wei Jun Hu ◽  
Hua Cheng
Keyword(s):  
High Stress ◽  
Strong Support ◽  
Support Effect ◽  
Simulation Software ◽  
Maintenance Cost ◽  
Related Research ◽  
Weak Support ◽  
Software Analysis ◽  
Mine Roadway ◽  
The Stability

Coal mine roadway roof and sides often take strong support, and the floor support is weak or none support. Because of the high stress, roadway damage phenomena have occurred often, take reasonable repair plan is the key to the recovery project. Reasonable repair plan not only can effectively control the deformation of surrounding rocks, but also can reduce the maintenance cost. According to the surrounding rocks’ property and depth of roadway in Anhui Huainan Pan-III mine, using FLAC3D numerical simulation software, analysis of the effect on plastic zone, surrounding rocks stress and displacement under different floor support, and put forward the repair plan to this coal, the related research conclusions can provide reference for design and construction to similar engineering.

scholarly journals An Empirical Framework for Intersection Optimization Based on Uniform Design

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Ying Zhang ◽  
Daniel Jian Sun ◽  
Alexandra Kondyli
Keyword(s):  
Performance Optimization ◽  
Uniform Design ◽  
Signalized Intersections ◽  
Simulation Software ◽  
Practical Implementation ◽  
Control Delay ◽  
Software Packages ◽  
The One ◽  
Entire Network

Operational performance optimization of signalized intersections is one of the most important tasks for traffic engineers and researchers. To compensate for the limitations of practical implementation, simulation software packages have been widely used to evaluate different optimization strategies and thus to improve the efficiency of the intersections as well as the entire network. However, for the existing optimization studies on signalized intersections, the relationships among various optimization measures and the combination of strategies have not been fully investigated. In this paper, uniform design experimentation was introduced to combine different optimization measures into strategies and achieve the minimum time cost in model construction. VISSIM software package was then calibrated and used to evaluate various optimization strategies and identify the one with the best measurement of performance, namely, control delay at the signalized intersection. By taking a representative congested intersection in Shanghai as a case study, the optimal strategy was identified to reduce the overall control delay by 27.3%, which further verified the modeling capability of the proposed method.

Analysis and Initialization of GE Wind Turbine Control Model

2015 ◽  
Vol 789-790 ◽  
pp. 1087-1100
Author(s):  
Elvisa Becirovic ◽  
Jakub Osmic ◽  
Daniel Toal ◽  
Mirza Kusljugic ◽  
Nedjeljko Peric
Keyword(s):  
Steady State ◽  
Wind Turbine ◽  
Control Model ◽  
Simulation Software ◽  
State Variables ◽  
Systematic Method ◽  
Wind Turbine Control ◽  
Software Packages ◽  
Variable Wind ◽  
System Dynamic Simulation

In this paper the analysis of a General Electric Wind Turbine Control Model (GEWTCM) and comparison with a Generic Wind Turbine Control Model (GWTCM) is presented. The analysis is performed for the GEWTCM stationary state. Based on the analysis, a systematic method for the GEWTCM initializations as well as a methodology for calculation of the GEWTCM operating point in steady state are presented. It has been shown that, due to lack of limiting of the pitch controller and pitch compensation, uniqueness of solution for initial and steady state values of all GEWTCM state variables are ensured except for the state variables of the pitch controller and pitch compensation. Conclusions from the analysis can help in the implementation of the wind turbine control model in power system dynamic simulation software packages in applications with variable wind speed.

scholarly journals Airborne Particulate Matter Modeling: A Comparison of Three Methods Using a Topology Performance Approach

2021 ◽  
Vol 12 (1) ◽  
pp. 256
Author(s):  
Julio Alberto Ramírez-Montañez ◽  
Marco Antonio Aceves-Fernández ◽  
Jesús Carlos Pedraza-Ortega ◽  
Efrén Gorrostieta-Hurtado ◽  
Artemio Sotomayor-Olmedo
Keyword(s):  
Particulate Matter ◽  
Short Term Memory ◽  
Chaotic Behavior ◽  
Airborne Particulate Matter ◽  
Simulation Software ◽  
Short Term ◽  
Software Packages ◽  
Memory Network ◽  
Long Short Term Memory

Understanding the behavior of suspended pollutants in the atmosphere has become of paramount importance to determine air quality. For this purpose, a variety of simulation software packages and a large number of algorithms have been used. Among these techniques, recurrent deep neural networks (RNN) have been used lately. These are capable of learning to imitate the chaotic behavior of a set of continuous data over time. In the present work, the results obtained from implementing three different RNNs working with the same structure are compared. These RNNs are long-short term memory network (LSTM), a recurrent gated unit (GRU), and the Elman network, taking as a case study the records of particulate matter PM10 and PM2.5 from 2005 to 2019 of Mexico City, obtained from the Red Automatica de Monitoreo Ambiental (RAMA) database. The results were compared for these three topologies in execution time, root mean square error (RMSE), and correlation coefficient (CC) metrics.

scholarly journals Learning Business Process Simulation Via Experiential Learning

2011 ◽  
Vol 4 (8) ◽  
pp. 19
Author(s):  
Paul F. Schikora ◽  
Brian D. Neureuther
Keyword(s):  
Discrete Event Simulation ◽  
Process Analysis ◽  
Discrete Event ◽  
Simulation Models ◽  
Simulation Software ◽  
Computing Power ◽  
Event Simulation ◽  
Software Packages ◽  
Basic Concepts ◽  
User Friendly

The use of discrete event simulation as a process analysis and improvement tool is no longer limited to industrial engineering curricula. With advancements in desktop computing power, we have seen user-friendly simulation software packages become available (e.g. ProModel, Arena, ProcessModel). However, we have found it desirable that students still learn the very basic concepts behind these simulation models in order to better understand their development and use. We present a simple classroom game that teaches students the basic discrete-event simulation concepts and processes without requiring them to learn all the underlying mathematics and scientific theory.

scholarly journals Development of a Method for Reading Geometric Description for comparative Analysis

2021 ◽  
pp. 28-39
Author(s):  
Niko Tsutskiridze ◽  
Keyword(s):  
Nuclear Research ◽  
Simulation Software ◽  
Atlas Detector ◽  
Special Method ◽  
Nuclear Engineering ◽  
Physical Processes ◽  
Experiment Data ◽  
European Organization ◽  
Atlas Experiment ◽  
Software Packages

Simulation of physical processes is ongoing together with ATLAS Experiment at European Organization for Nuclear research (CERN). As a result, data are obtained from real experiment (data) and simulation (MC), which is different for some areas of the ATLAS detector. The reason of differences could be geometrical description existed in simulation software packages, therefore their investigation is required. Geometric descriptions of the ATLAS detector are stored in AGDD / XML and GeoModel / Oracle. The main part of the geometric descriptions of AGDD / XML has been studied by the Nuclear Engineering Center of the Georgian Technical University and significant inaccuracies have been identified. GeoModel / Oracle geometric descriptions are not investigated so far. Therefore, a special method has been developed in order to investigate geometric descriptions existed in GeoModel / Oracle. The method has been tested using comparative analyses of pump which is part of ATLAS detector.

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