TY  - JOUR
PY  - 2016//
TI  - A Taylor-Affine Arithmetic for analyzing the calculation result uncertainty in accident reconstruction
JO  - Forensic science international
A1  - Zou, Tiefang
A1  - Peng, Haitao
A1  - Cai, Ming
A1  - Wu, Hequan
A1  - Hu, Lin
SP  - 502
EP  - 510
VL  - 266
IS  - 
N2  - In order to analyze the uncertainty of a reconstructed result, the Interval Algorithm (IA), the Affine Arithmetic (AA) and the Modified Affine Arithmetic (MAA) were introduced firstly, and then a Taylor-Affine Arithmetic (TAA) was proposed based on the MAA and Taylor series. Steps of the TAA, especially in analyzing uncertainty of a simulation result were given. Through the preceding five numerical cases, its application was demonstrated and its feasibility was validated. <br><br>RESULTS showed that no matter other methods (The IA, AA, the Upper and Lower bound Method, the Finite Difference Method) work well or bad, the TAA work well, even under the condition that the MAA cannot work in some cases because of the division/root operation in these models. Furthermore, in order to make sure that the result obtained from the TAA can be very close to the accurate interval, a simple algorithm was proposed based on the sub-interval technique, its feasibility was validated by two other numerical cases. Finally, a vehicle-pedestrian test was given to demonstrate the application of the TAA in practice. In the vehicle-pedestrian test, the interval [35.5, 39.1]km/h of the impact velocity can be calculated according to steps of the TAA, such interval information will be more useful in accident responsibility identification than a single number. This study will provide a new alternative method for uncertainty analysis in accident reconstruction.<br><br>Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.<p />  <p>Language: en</p>
LA  - en
SN  - 0379-0738
UR  - http://dx.doi.org/10.1016/j.forsciint.2016.07.011
ID  - ref1
ER  -