Rollover Crash Reconstruction

10.4271/r-475 ◽  
2018 ◽  
Author(s):  
Nathan A Rose ◽  
Gray Beauchamp ◽  
Alan F Asay
Keyword(s):  
Rollover Crash

Constrained Laboratory vs. Unconstrained Steering-Induced Rollover Crash Tests

2015 ◽  
Vol 16 (sup2) ◽  
pp. S209-S216 ◽  
Author(s):  
Jason R. Kerrigan ◽  
Jacek Toczyski ◽  
Carolyn Roberts ◽  
Qi Zhang ◽  
Mark Clauser
Keyword(s):  
Rollover Crash ◽  
Crash Tests

Drag Factors From Rollover Crash Testing for Crash Reconstructions

2011 ◽  
Author(s):  
Mark W. Arndt ◽  
Stephen M. Arndt ◽  
Donald Stevens
Keyword(s):  
Standard Deviation ◽  
Crash Testing ◽  
Naturally Occurring ◽  
Analysis Technique ◽  
Global Positioning ◽  
Original Works ◽  
Rollover Crash ◽  
Crash Tests ◽  
Gps Antenna ◽  
Drag Factor

A study of numerous published rollover tests was conducted by reexamination of the original works, analysis of their data, and centralized compilation of their results. Instances were identified where the original reported results for trip speed were in error, requiring revision because the analysis technique employed extrapolation versus integration and lacked correction for offset errors that develop by placing the Global Positioning System (GPS) antenna away from the vehicle Center of Gravity (CG). An analysis was performed demonstrating revised results. In total, 81 dolly rollover crash tests, 24 naturally occurring rollover crash tests, and 102 reconstructed rollovers were identified. Of the 24 naturally occurring tests, 18 were steer-induced rollover tests. Distributions of the rollover drag factors are presented. The range of drag factors for all examined dolly rollovers was 0.38 g to 0.50 g with the upper and lower 15 percent statistically trimmed. The average drag factor for dolly rollovers was 0.44 g (standard deviation = 0.064) with a reported minimum of 0.31 g and a reported maximum of 0.61 g. After revisions, the range of drag factors for the set of naturally occurring rollovers was 0.39 g to 0.50 g with the upper and lower 15 percent statistically trimmed. The average drag factor for naturally occurring rollovers was 0.44 g (standard deviation = 0.063) with a reported minimum of 0.33 g and a reported maximum of 0.57 g. These results provide a more probable range of the drag factor for use in accident reconstruction compared to the often repeated assertion that rollover drag factors range between 0.4 g and 0.65 g.

scholarly journals Heavy Military Land Vehicle Mass Properties Estimation Using Hoisting and Pendulum Motion Method

2019 ◽  
Vol 69 (6) ◽  
pp. 550-556
Author(s):  
M. S. Risby ◽  
Khalis Suhaimi ◽  
Tan Kean Sheng ◽  
Arif Syafiq M. S. ◽  
Mohd Hafizi N
Keyword(s):  
Centre Of Gravity ◽  
Mass Moment ◽  
Mass Properties ◽  
Proper Mass ◽  
Vehicle Rollover ◽  
Mass Moment Of Inertia ◽  
Mobile Crane ◽  
Vector Mechanics ◽  
Rollover Crash ◽  
Modelling Process

Mass properties such as the centre of gravity location, moments of inertia, and total mass are of great importance for vehicle stability studies and deployment. Certain parameters are required when these vehicles need to be arranged inside an aircraft for the carrier to achieve proper mass balance and stability during a flight. These parameters are also important for the design and modelling process of vehicle rollover crash studies. In this study, the mass properties of a military armoured vehicle were estimated using hoisting and pendulum method. The gross total weight, longitudinal and vertical measurements were recorded by lifting the vehicle using a mobile crane and the data were used to estimate the centre of gravity. The frequency of vehicle oscillation was measured by applying swing motion with a small angle of the vehicle as it is suspended on air. The centre of gravity and mass moment of inertia were calculated using the vector mechanics approach. The outcomes and limitations of the approach as discussed in details.

Rollover crash analysis of a road tanker with self-steer axles

2013 ◽  
pp. 225-241
Author(s):  
Hans Prem ◽  
Luan Mai ◽  
Glenn Gorham ◽  
Don Hutchinson ◽  
John Long
Keyword(s):  
Crash Analysis ◽  
Rollover Crash

Safety Belt Buckle Environment in Vehicle Rollover Crash Tests

2009 ◽  
Vol 2 (1) ◽  
pp. 1181-1202
Author(s):  
Michael J. Haldenwanger ◽  
Antonio Antonucci ◽  
Gerald A. Cooper ◽  
William A. Malopolski ◽  
Jennifer L. Sevigny ◽  
...  
Keyword(s):  
Safety Belt ◽  
Vehicle Rollover ◽  
Rollover Crash ◽  
Crash Tests
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