scale model study of crash energy dissipating vehicle structures by G. C. Kao

Cover of: scale model study of crash energy dissipating vehicle structures | G. C. Kao

Published by Wyle Laboratories in [Huntsville, Ala.] .

Written in English

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Subjects:

  • Automobiles -- Crashworthiness.

Edition Notes

Book details

Statementby G.C. Kao, G.C. Chan.
SeriesResearch staff report / Wyle Laboratories ;, WR 68-3, Research staff report ;, WR 68-3.
ContributionsChan, G. C., Wyle Laboratories.
Classifications
LC ClassificationsTL242 .K363 1968
The Physical Object
Paginationxii, 92 leaves :
Number of Pages92
ID Numbers
Open LibraryOL2590017M
LC Control Number85141492

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A scale model study of crash. energy dissipating vehicle structures. Report, Wyle. Laboratories, Alabama, This book offers a synthesis of the most recent developments and forms a. A scale model study of crash energy dissipating vehicle structures.

Wyle Laboratories, Alabama, USA, Similarity methods in engineering dynamics: theory and practice of scale modeling.

This study aimed to investigate energy dissipation in train collisions. A 1/8 scaled train model, about one-dimensional in longitudinal direction, was used to carry out a scaled train collision test.

Corresponding multibody dynamic simulations were conducted using traditional and improved method model (IMM) in ADAMS. In IMM, the connection between two adjacent cars was expressed by a nonlinear Cited by: 4.

A scale model study of crash energy dissipating vehicle structures. Wyle Laboratories, Alabama, USA, Wyle Laboratories, Alabama, USA, Google ScholarCited by: 1. simulations suggest that the segment of the vehicle model has a significant effect not only on the energy absorption but also intrusion of occupant cell.

Keywords: analysis of the energy absorption, energy absorption behavior, vehicle crash simulation. Introduction Energy absorption of a structure is a keyFile Size: KB.

Crash energy management (CEM) is a design technique that enhances crashworthiness. CEM seeks to control the load path into the car body struc-ture and to absorb the energy with components that are outside the occupied volume.

CEM is commonly understood in the context of automobile designs that incorporate “crumple zones” and passive safety fea. Greenwell, N. (, May). Evaluation of the Enhancing Vehicle-to-Vehicle Crash Compatibility Agreement: Effectiveness of the primary and secondary energy-absorbing structures on pickup trucks and SUVs.

(Report No. DOT HS ). Washington, DC:. Inevitably, vehicular crash accidents have also increased and have become a major worldwide health problem. For better safety circumstances, vehicles’ structures should be able to protect occupants through converting most of the kinetic energy during a crash situation into other forms of energy in a predictable and controllable by: Kelvin model for a real experiment, its analysis and validation.

After model’s parameters extraction a quick assessment of an occupant crash severity is done. Key-Words: Modeling, vehicle crash, Kelvin model, data processing. 1 Introduction. The main objective of this project is to establish a mathematical model of a vehicle collision.

Train crash events can be basically depicted into two phases: In a first phase, normally referred to as primary collision, the initial kinetic energy is progressively dissipated by means of plastic structural deformation resulting from the crash generated impact loads.

In this phase occupant compartmentFile Size: 1MB. The design model is produced using solid modelling/I-DEAS 11 softwares and PAM-Crash is used for the simulations.

The simulation results show side impact protection system is capable of absorbing and dissipating 98% of the energy of a 14 m/s impact involving a m diameter tree.

Keywords: Side Impact Protection, Racing Car, EnergyFile Size: 1MB. A kind of crash energy absorption structure used by vehicle simulator crash testing equipment based on mechanical energy storage was studied.

Dynamic explicit finite element simulation was conducted for steel tube combination structure under different conditions of length, center distance, thickness, and section dimension. Crash energy absorption characteristics of the structure were : Xu Zhang, Qi Jiang, Li Wei Li, Wei Wei Cui, Ji Jun Cui, Yang Cao, Hai Rong Zhao.

Shifting the threshold zone of road tunnels with semitransparent tension structures has shown itself to be an effective way of saving energy in regards to electricity consumption, maintenance, and construction materials used in the electrical lighting, thus lessening negative environmental impacts.

Even though the shape of the tension structure has a major influence on energy savings, the Cited by: stiffness real time for optimal energy absorption in different crash situations. Besides that all the energy is absorbed it is also important to manage the intensity during the crash time, because the resulting crash pulse has a large influence on the injury level.

Especially at high crash velocities a stiff structure in. A 1/4th scale model of a new automobile design is tested in a wind tunnel. The Reynolds number of the model is the same as that of the full-scale prototype.

Assuming the model and prototype are exposed to the same air conditions, the velocity in the wind tunnel is then. a) 1/4th that of the full-scale vehicle%(14). In this book, modeling and simulation of electric vehicles and their components have been emphasized chapter by chapter with valuable contribution of many researchers who work on both technical and regulatory sides of the field.

Mathematical models for electrical vehicles and their components were introduced and merged together to make this book a guide for industry, academia and policy by: representative of these types of large-scale launch vehicle cylinder structures, and that certain behavioral characteristics and failure modes shall be isolated and studied.

For example, these types of integrally-stiffened, welded structures can exhibit several different failure modes including global buckling, local skin-pocket bucklingFile Size: 2MB. This article presents a structural equation model (SEM) to understand the relationship between the BASIC scores and crash records of the carriers.

Exogenous variables are Unsafe Driving, Fatigue Driving, Driver Fitness, Controlled Substances/Alcohol, and Vehicle Maintenance. Crash-Per-Million-Miles is the endogenous variable in the SEM.

Automobile-Barrier Impact Studies Using Scale Model Vehicles M. PETER JURKAT and JAMES A. STARRETT Respectively, Chief and Research Engineer, Traffic Research Division, Davidson Laboratory, Stevens Institute of Technology oTHIS is a report on the continuing development of scale models as tools in the study of vehicle this case, models were used to study the automobile-center.

therefore be used. Scaled model test is widely used in crash-worthiness study of airplanes, automobiles, ships, and other structures due to its advantages in implementation, repeata-bility, and reliability. Kao and Barley conducted a / and a / automobile scaled model test to study the automobile crashworthiness[, ].

dthecrashworthi-Cited by: 4. Occupant Protection Experiments in Support of A Full-Scale Train-to-Train Crash Energy Management Equipment Collision Test [U.S.

Department of Transportation] on *FREE* shipping on qualifying offers. The Federal Railroad Administration sponsored a full-scale train-to-train crash energy management (CEM) technology test that was conducted on March An engineer is building a model of a vehicle, using a 2 actual dimensions of the vehicle are given in the table.

Dimension Measurement Length inches Width 72 inches Height 58 inches Drag and drop the length of the scale model of the vehicle. Measurements are rounded to. Crash energy management is a major performance requirement. The materials have exhibited an effective and stable energy absorption behavior in laboratory studies.

These developments, together with the positive results from prototype vehicle crash tests, have encouraged the further study of structural composites for vehicle crash energy by: Report U.S. DOE Benefits & Scenario Analysis. The U. Department of Energy (DOE) Vehicle Technologies Office (VTO) & Fuel Cell Technologies Office (FCTO) supports new technologies to increase energy security in the transportation sector at a critical time for global petroleum supply, demand, and pricing.

Vol Issue 2, August ISSN: X (Print) Design of energy dissipating elastoplastic structures under cyclic loads using topology optimization. Lei Li Integrated design technique for materials and structures of vehicle body under crash safety considerations.

the 1/5-scale model fuselage section, lead masses, and acceler-ometers was lbs. From a scaling perspective, the weight of the 1/5-scale fuselage section should equal the weight of the full-scale fuselage section (1, lbs.) divided by 53, orwhich is lbs. Thus, the 1/5-scale model fuselage section is lbs.

heavier than by: 5. Key-Words: Modeling, vehicle crash, Kelvin model, data processing, ridedown criterion.

1 Introduction. The main objective of this is to establish a paper mathematical model of a vehicle collision. The purpose of this task is to simulate how the crash looks like i.e. what – are the main parameters describing the collision without –Cited by: compartment of many cars) occurring in more realistic crash tests, which deviate from the compulsory full overlap crash test against a concrete block, are reason to worry.

In the case of a partial frontal overlap (offset) collision or an off-axis crash direction only part of the vehicle structure can be Cited by: The scale model method to simulate lunar vehicle dynamics depends on the ability to create a model that is dimensionally similar to the real vehicle operating in low gravity (Buckingham, ).

As explained in (Markow, ), dimensional similarity between a Moon vehicle and an Earth model can be achieved using a 1/6th length scale model. ANL Vehicle Technologies Analysis Modeling Program Michael Wang (PI), Amgad Elgowainy, Aymeric Rousseau, model: Dynamically quantify vehicle energy consumption and cost Supplemented with small-scale panel study focusing on new vehicle technology.

SMALL-SCALE TESTING TO STUDY MITIGATION OF ACCELERATION ON SIMULATED VEHICLES By Jarrod Mark Bonsmann Dissertation submitted to the Faculty of the Graduate School of the University of Maryland, College Park, in partial fulfillment of the requirements for the degree of Doctor of Philosophy Advisory Committee.

The objective of the Techno- Economic Analyses of Large- Scale Electric Vehicle Systems was to develop a computer model to evaluate the technoeconomic implications of a - large-scale electrified transportation sector.

The model factors included the developing. Structural Impact is concerned with the behaviour of structures and components subjected to large dynamic, impact and explosive loads which produce inelastic deformations.

It is of interest for safety calculations, hazard assessments and energy absorbing systems throughout industry. SHAPES FOR MAXIMUM COLLISION ENERGY ABSORBTION 1, 2 and Sameer S.S.3 1Department of Mechanical Engineering, Amrutvahini College of Engineering, Sangamner 2Department of Mechanical Engineering, Amrutvahini College of Engineering, 3Mechanical Department,JMCT Polytechnic Nashik Abstract— The vehicle crash box is a device.

Model and Safety Study of Large-Scale Hydrogen Production Using Nuclear Power Sal B. Rodriguez, Randall O. Gauntt, Randy Cole, Katherine McFadden, Fred Gelbard, Tom Drennen, Len Malczynski, and William J. Martin Sandia National Laboratories Albuquerque, New Mexico David L. Louie and Louis Archuleta OMICRON Safety and Risk, Size: 4MB.

Development of the structures for an experimental safety vehicle by General Motors Corp. in compliance with Contract DOT-OS involved defining vehicle crash dynamics and relating structural characteristics to dummy occupant kinematics.

Author: F. Bakewicz, R. Fischer, R. Chupick, R. Roland. The goal of combustion modeling is to accurately predict combustion phenomena.

In this study, a new PDF time-scale combustion model based on the laminar flamelet combustion model of Peters () and implemented by Lee () is presented. Another issue in combustion modeling is accounting for turbulence – scalar interactions.

It is believed that. towing vehicle are reduced. Such a trailer would be guided by the towing vehicle, but the vehicle would provide very little power to the trailer, and therefore a small car could be used for the towing task, removing the requirement to buy or rent a larger vehicle for occasional towing.

This concept has beenFile Size: KB. Electric Vehicle Impact Studies for Utility Power Systems Electric vehicle utility impact studies determine the changes in demand and energy needs that increasing penetrations of electric vehicles (EVs) will have on a power system, and these studies identify the Quanta Technology typically applies a representative model approach to EVIS File Size: KB.

In the mature stage of a thunderstorm, the warmed air continues to rise until it reaches an area of warmer air and can rise no farther.

Often this 'cap' is the air is instead forced to spread out, giving the storm a characteristic anvil shape. The resulting cloud is called cumulonimbus water droplets coalesce into larger and heavier droplets and freeze to become ice Area of occurrence: Primarily tropical and also.

Recommended Lotus Study Improvements Examine Multiple Body Types Consider the Mass Efficiency of Entire Vehicle Address Materials Supply Issues Validate New Structural Designs Include Capital, Engineering, Development and Tooling Costs for Integration of New Materials Consider Manufacturer Design Cycles and Need for Pilot Introduction of New.Simulations were made of the crashed vehicle´s dynamics when driving a 3D model of the entry ramp.

The results showed that the entry ramp had a very unfortunate geometry. The crash came as result of a failure in the interaction between the driver and the heavy goods vehicle's performance in relation to the condition and function of the Size: KB. The dynamic responses of the vehicle during the frontal crash at km/h and 8 km/h are presented.

In the developing stage of the design the structure of the front longitudinal beam is optimized, hence the amount of energy absorbed increases by:

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