This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effects of Change in Angular Velocity of a Vehicle on the Change in Velocity Experienced by an Occupant during a Crash Environment and the Localized Delta V Concept
Annotation ability available
Sector:
Language:
English
Abstract
The change in velocity (Delta V) has; been used widely to evaluate the severity of vehicle damage and injuries suffered by vehicle occupants during a car crash. A high Delta V usually means severe car damage together with serious occupant injuries. In contrast, a low Delta V would mean little damage and less injuries. Many car accidents typically involve significant change in vehicle rotational velocity during the crash. Subsequently, vehicle damage and occupant injuries do not appear to correlate to the Delta V of the vehicle in the normal fashion. This paper examines the effects of the change in angular velocity (Delta w) on the localized or effective Delta V experienced by an occupant in a crash environment. The authors have derived the localized or effective Delta V at different locations of a test vehicle in 22 of 25 previously performed car crash tests examined in this study and proposed to use the localized Delta V concept to describe the resultant velocity felt by an occupant inside a crashing vehicle. A standard procedure to evaluate the effect of the yaw rate of a car to an occupant inside a crashing vehicle is also discussed.
Recommended Content
| Technical Paper | Least Squares Collision Reconstruction |
| Technical Paper | The Effect of Vehicle Rotation on the Occupants' Delta V |
| Technical Paper | Computer Aids for Accident Investigation |
Authors
Citation
Cheng, P. and Guenther, D., "Effects of Change in Angular Velocity of a Vehicle on the Change in Velocity Experienced by an Occupant during a Crash Environment and the Localized Delta V Concept," SAE Technical Paper 890636, 1989, https://doi.org/10.4271/890636.Also In
References
- Beer, Ferdinand P. Johnston, E. Russell, Jr. Vector Mechanics for Engineers -Dynamics Second McGraw-Hill, Inc. 1972
- Stultz, J. “Side impact Aggressiveness Attributes MDB-To-Car Side impact Test of a 26-degree Crabbed Moving Deformable Barrier to a 1981 Volkswagen Rabbit L at 39.3 Mph” DOT HS 806 841 Final Report NHTSA/USDOT July 1984
- Bell, L. “Side Impact Aggressiveness Attributes MDB-To-Car Side impact Test of a 19-degree Crabbed Moving Deformable Barrier to a 1981 Volkswagen Rabbit at 46.4 Mph” DOT HS 806 842 Final Report NHTSA/USDOT September 1984
- Bell L. “Side impact Aggressiveness Attributes MDB-To-Car Side impact Test of a 19-degree Crabbed Moving Deferrable Barrier to a 1981 Volkswagen Rabbit at 45.9 Mph” DOT HS 806 846 Final Report NHTSA/USDOT November 1984
- Bell L. “Side Impact Aggressiveness Attributes MDB-To-Car Side impact Test of a 19-degree Crabbed Moving Deformable Barrier to a 1981 Volkswagen Rabbit at 46.0 Mph” DOT HS 806 847 Final Report NHTSA/USDOT November 1984
- Bell L. “Side impact Aggressiveness Attributes: MDB-To-Car Side impact Test of a 26-degree Crabbed Moving Deformable Barrier to a 1981 Volkswagen Rabbit at 38.8 mph” DOT HS 806 851 Final Report NHTSA/USDOT December 1984
- Bell L. “Side impact Aggressiveness Attributes: MDB-To-Car Side impact Test of a 19-degree Crabbed Moving Deformable Barrier to a 1980 Volkswagen Rabbit at 46.2 mph” DOT HS 806 852 Final Report NHTSA/USDOT January 1985
- Calspan “Task 3 Car-To-Car Side Impact Crush and Crash Testing Test Report Test: 1” Contract No. DOT-HS-5-01099 Calspan Corporation New York 1976
- Calspan “Task 3 Car-To-Car Side impact Crush and Crash Testing Test Report Crash Test No. 2” Contract No. DOT-HS-5-01099 Calspan Corporation New York 1976
- Alianello, Donald A. “Improved Lightweight Subcompact Side Structure Test Report Test: Baseline Crash Test No. 4” Calspan Report No. 6225-V-3 Calspan Advanced Technology Center, Calspan Corporation New York 1978
- Alianello, Donald A. “Improved Lightweight Subcompact Side Structure Test Report Test: Test No. 6” Calspan Report No. 6225- V-7 Calspan Advanced Technology Center, Calspan Corporation New York 1978
- Severy, D. M. Mathewson, J. H. Siegel. A. W. “Automobile Side-Impact Collisions” SP-174 SAE January 1960
- Shoemaker, Norris E. “Research Input For Computer Simulation Of Automobile Collisions Volume II: Staged Collisions Tests No. 1 Through No. 5” Calspan Corporation Advanced Technology Center New York December 1978
- Shoemaker, Norris E. “Research Input For Computer Simulation Of Automobile Collisions Volume III: Staged Collisions Tests No. 6 Through No. 12” Calspan Corporation Advanced Technology Center New York December 1978
- Cheng, Philip H. et. al. “An Overview of the Evolution of Computer Assisted Motor Vehicle Accident Reconstruction” 1987 SAE Transactions Section 3. SAE Technical Paper Series No. 871991 October 1987
- Blodgett, Robert et. al. “National Center For Statistics and Analysis Collected Technical Studies Volume I Accident Data Analysis of Vehicle Crashworthiness - Ten Papers” NHTSA/USDOT April 1981
- Gimotty, Phyllis A. et. al. “Statistical Analysis Of The National Crash Severity Study Data” NHTSA/USDOT August 1980