SAE International Journal of Transportation Safety最新文献_第8页

Parametric Analysis and Optimization of Variables Affecting the Brain Injury Criterion (BrIC) in Various Crash Scenarios 不同碰撞情景下影响脑损伤标准的变量的参数分析与优化

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SAE International Journal of Transportation Safety Pub Date : 2019-08-19 DOI: 10.4271/09-07-01-0005

V. Hasija, E. Takhounts, M. Craig

引用次数: 0

Factors Affecting the Severity of Motor Vehicle Traffic Crashes in Tunisia 突尼斯机动车交通事故严重程度的影响因素

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SAE International Journal of Transportation Safety Pub Date : 2019-08-19 DOI: 10.4271/09-07-02-0006

Mounir Belloumi, Fedy Ouni

引用次数: 6

Driving Simulator Performance in Charcot-Marie-Tooth Disease Type 1A 驾驶模拟器在1A型腓骨肌萎缩症中的性能

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SAE International Journal of Transportation Safety Pub Date : 2019-05-10 DOI: 10.4271/09-07-01-0003

Nivedita U Jerath, N. Aksan, J. Dawson, M. Rizzo, E. Uc, M. Shy

引用次数: 0

Hewing Out Evacuation Routes for Burning Buses by Linear-Shaped Charge Jet 利用线型装药射流确定燃烧公交车的疏散路线

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SAE International Journal of Transportation Safety Pub Date : 2019-01-25 DOI: 10.4271/09-07-01-0002

Yanshu Fu, Chaoyang Zhang

引用次数: 1

Artificial Lightning Tests on Metal and CFRP Automotive Bodies: A Comparative Study 金属与CFRP汽车车身人工雷电试验的比较研究

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SAE International Journal of Transportation Safety Pub Date : 2019-01-07 DOI: 10.4271/09-07-01-0001

S. A. Alkhteeb, S. Oho, Yukichi Nagashima, H. Shimizu, S. Nishimura, H. Makishima

引用次数: 0

Railway Fastener Positioning Method Based on Improved Census Transform 基于改进普查变换的铁路扣件定位方法

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SAE International Journal of Transportation Safety Pub Date : 2018-10-31 DOI: 10.4271/09-06-02-0011

Chunming Wu, Hong Zheng

引用次数: 0

Detection of Lane-Changing Behavior Using Collaborative Representation Classifier-Based Sensor Fusion 基于协同表示分类器的传感器融合变道行为检测

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SAE International Journal of Transportation Safety Pub Date : 2018-10-29 DOI: 10.4271/09-06-02-0010

Jun Gao, Y. Murphey, Honghui Zhu

引用次数: 5

Validation of Crush Energy Calculation Methods for Use in Accident Reconstructions by Finite Element Analysis 用有限元分析验证用于事故重建的破碎能量计算方法

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SAE International Journal of Transportation Safety Pub Date : 2018-10-04 DOI: 10.4271/09-06-02-0009

Shusuke Numata, K. Mizuno, D. Ito, D. Okumura, H. Kinoshita

{"title":"Validation of Crush Energy Calculation Methods for Use in Accident Reconstructions by Finite Element Analysis","authors":"Shusuke Numata, K. Mizuno, D. Ito, D. Okumura, H. Kinoshita","doi":"10.4271/09-06-02-0009","DOIUrl":"https://doi.org/10.4271/09-06-02-0009","url":null,"abstract":"The crush energy is a key parameter to determine the delta-V in accident reconstructions. Since an accurate car crush profile can be obtained from 3D scanners, this research aims at validating the methods currently used in calculating crush energy from a crush profile. For this validation, a finite element (FE) car model was analyzed using various types of impact conditions to investigate the theory of energy-based accident reconstruction. Two methods exist to calculate the crush energy: the work based on the barrier force and the work based on force calculated by the vehicle acceleration times the vehicle mass. We show that the crush energy calculated from the barrier force was substantially larger than the internal energy calculated from the FE model. Whereas the crush energy calculated from the vehicle acceleration was comparable to the internal energy of the FE model. In full frontal impact simulations, the energy of approach factor (EAF) has a linear relation with the residual crush, which had been validated in previous experimental studies. In our study using FE analysis, we found that the slope of EAF versus the residual crush was comparable with that of the dynamic crush energy versus the dynamic crush for crashes at 55 km/h. Using this slope and the residual crush from a 55 km/h impact test, the slope and the intercept of the EAF vs. residual crush can be determined using only one crash test. A database of the slopes and the intercepts was made using Japan New Car Assessment Program (JNCAP) tests. In offset impact simulations, the crush energy calculated from the crush profile agreed with the internal energy of the car FE model when at least one front rail was involved. In oblique impacts, the correction factor for crush energy is not necessary within 20 degrees of principal direction of force of the car’s longitudinal axis. Downloaded from SAE International by Duke Univ, Friday, January 11, 2019","PeriodicalId":42847,"journal":{"name":"SAE International Journal of Transportation Safety","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4271/09-06-02-0009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42534955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Carbon Monoxide Density Pattern Mapping from Recreational Boat Testing 休闲船测试的一氧化碳密度模式图

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SAE International Journal of Transportation Safety Pub Date : 2018-10-04 DOI: 10.4271/09-06-02-0008

M. Warner

引用次数: 0

The Placement of Digitized Objects in a Point Cloud as a Photogrammetric Technique 作为摄影测量技术的点云中数字化对象的放置

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SAE International Journal of Transportation Safety Pub Date : 2018-08-08 DOI: 10.4271/09-06-02-0007

Shawn Harrington, Gabriel Lebak

{"title":"The Placement of Digitized Objects in a Point Cloud as a Photogrammetric Technique","authors":"Shawn Harrington, Gabriel Lebak","doi":"10.4271/09-06-02-0007","DOIUrl":"https://doi.org/10.4271/09-06-02-0007","url":null,"abstract":"The frequency of video-capturing collision events from surveillance systems are increasing in reconstruction analyses. The video that has been provided to the investigator may not always include a clear perspective of the relevant area of interest. For example, surveillance video of an incident may have captured a preor post-incident perspective that, while failing to capture the precise moment when the pedestrian was struck by a vehicle, still contains valuable information that can be used to assist in reconstructing the incident. When surveillance video is received, a quick and efficient technique to place the subject object or objects into a three-dimensional environment with a known rate of error would add value to the investigation. In addition, once the objects have been placed into the three-dimensional environment, the investigator would then be able to observe the physical evidence and environment from any perspective, including viewing and measuring what cannot be seen in the video perspective. In this research, the proposed photogrammetric technique of visually placing objects within three-dimensional laser scans will be evaluated. This research aims to quantify the rate of error of taking measurements of these objects to known fixed reference points both in and out of view of the camera, and provide an efficient technique that can be employed by reconstructionists using only one software package. As a result of this research, the authors have developed an expedient, less time-intensive photogrammetric technique for the placement of threedimensionally scanned objects and environments. This technique can take less than half of the time of a conventional photogrammetric solution. Downloaded from SAE International by Shawn Harrington, Thursday, October 04, 2018","PeriodicalId":42847,"journal":{"name":"SAE International Journal of Transportation Safety","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2018-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4271/09-06-02-0007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43316282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1