Accident Reconstruction of Lifting Crane Based on FEA

2011 ◽  
Vol 55-57 ◽  
pp. 1315-1317
Author(s):  
Ming Liang Yang ◽  
Ge Ning Xu ◽  
Zheng Yan Chang

Accident reconstruction model of lifting crane was founded based on FEA, investigation date and expertise. It simulated the lifting conditions and the change of loading was to be found out. The accident scene would be reconstructed in tine and space domain. It would greatly increase the analysis precision of accident and could provide a scientific foundation for accident judgments.

2014 ◽  
Vol 952 ◽  
pp. 201-205
Author(s):  
Yi Cao ◽  
Zhong Yi Zuo ◽  
Bo Hang Liu

In order to simulate and analyze the rolling movement state of motorcycle in collision accidents, the trajectory reconstruction model was studied. The motorcycle’s centroid trajectory model during the process of rolling and the feature point trajectory model during the process of sliding are both constructed. Using the accidents reconstruction and analysis software named PC-Crash and the models constructed in this paper respectively, a real accident case was reconstructed and analyzed. The comparative study between the reconstruction analysis results and the marks remained in the accident scene was conducted. Research showed that, the analysis result reconstructed by the model was consistent with the actual accident scene. This model can be used to reconstruct and analyze the motorcycle’s rolling movement trajectory after collision occurring.


Author(s):  
Joel T. Hicks

Automotive accident reconstruction can be dramatically assisted and improved by the use of microcomputers which are programed to utilize the vehicle damage and accident scene data. CRASH / TRAJECTORY is such a program and is based upon a main-frame computer program developed by the U.S. Department of Transportation. The federal program has been personalized and improved for use by legal and engineering offices faced with the task of interpreting actual accident cases. Where the federal program did not allow the user full access to the internal data tables and the output of the programs equations, these new programs do, through the use of user friendly menus and tables.


2014 ◽  
Vol 641-642 ◽  
pp. 799-804 ◽  
Author(s):  
Yong Gang Zhang ◽  
Jian Min Xu ◽  
Tie Fang Zou ◽  
Yu Liu

To reconstruct accident succinctly and scientifically, four steps of vehicle-vehicle impact accident reconstruction based on Pc-Crash were discussed, including accident scene reconstruction, vehicle modeling, accident reconstruction, result analysis and verification. Three accident scene reconstruction methods were proposed. Key attention was paid to methods which can reduce difficulties of accident reconstruction, such as drive model, equivalent energy speed (EES) database and collision optimizer. Finally, a case study was conducted, which confirmed that the proposed four steps can simplify vehicle-vehicle accident reconstruction while maintaining satisfying objectivity and reliability. This paper can contribute to the better application of Pc-Crash to traffic accident reconstruction.


ICCTP 2009 ◽  
2009 ◽  
Author(s):  
Lili Zheng ◽  
Tongqiang Ding ◽  
Jianfeng Xi ◽  
Jian Sun ◽  
Jiang Li

2011 ◽  
Vol 255-260 ◽  
pp. 4090-4094
Author(s):  
Lei Zhang ◽  
Wen Hu Qin ◽  
Tie Jun He ◽  
Wei Nong Li

Investigation at scene is the key issue to Scene Traffic Accident Reconstruction(TAR). Although the photogrammetry technique is widely applied in China due to its convenience and lower cost, it can only provide the final state of the traffic accidents. In this paper, a novel method based on the time difference of arrival (TDOA) technique was proposed to monitor the location of the vehicles passing the accident-prone section on the highway. The methodology of application of TDOA to the Traffic accident scene investigation was proposed, and the arrangement of sensors on the accident-prone sections of the selected freeway is discussed. Based on the coordinates collected by TDOA receivers, real-time position of the each vehicle moving on the accident-prone section could be extracted respectively and when the accidents happen, the traces of the vehicles involved would be obtained. It could be concluded that this method is important supplement to photogrammetry technique during accident scene investigation and could make the forensic judgment of accident responsibility more accurate.


2013 ◽  
Vol 779-780 ◽  
pp. 747-751
Author(s):  
Yi Cao ◽  
Hui Zhi Xu ◽  
Zhong Yi Zuo

In order to provide a theory algorithm for simulation and reconstruction analysis of automobile two-dimensional eccentric collision accidents, the applicability problems of the traditional dynamics model and trajectory model in this kind of accident were analyzed in theory respectively. Using PC-Crash software and the traditional models, a real accident case was reconstructed and analyzed. The comparative study between the reconstruction analysis results and the vehicles traces remained in the accident scene was conducted. According to the comparative study, reliabilities of the traditional models were verified.


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