Implementation of One Kind of Side Impact Method for Child Restraint System Based on Sled Test

2013 ◽  
Vol 333-335 ◽  
pp. 2101-2104
Author(s):  
Zhi Xin Liu ◽  
Yu Bing Zhang ◽  
Ming Jiang Wei ◽  
Yue Zhang
Keyword(s):  
Impact Test ◽  
Good Method ◽  
Test Method ◽  
Side Impact ◽  
Accident Analysis ◽  
Impact Performance ◽  
Sled Test ◽  
Child Restraint ◽  
Child Restraint System ◽  
Rear Impacts

Although accident analysis shows that side impact accidents continue to be dangerous for children in cars, the majority technical regulations of Child Restraint Systems (CRS) are focused on the crash performance under the frontal and rear impacts and do not include a side impact test, the main reason is that no good method to test side impact performance of CRS has been agreed on yet in the world. In this paper one side impact test method based on double sled concept is presented and realized. And several CRS models are tested; injury response values are measured from child dummy. It is observed that the sled buck concept is repeatable and able to distinguish preliminarily between CRS models.

Comparison and Analysis on Side Impact Sled Test of Child Restraint System

2013 ◽  
Vol 774-776 ◽  
pp. 411-414
Author(s):  
Jun Liu ◽  
Lin Xi Jia ◽  
Xue Rong Zhang ◽  
Hai Sen Zhou
Keyword(s):  
Dynamic Test ◽  
Side Impact ◽  
Restraint System ◽  
Lateral Impact ◽  
Test Procedures ◽  
Impact Performance ◽  
Sled Test ◽  
Safety Standards ◽  
Child Restraint ◽  
Child Restraint System

Side impact is the second most frequent collision compared with frontal impact, accounting for about 30% of the total number of accidents. Indicating from the statistics, there is at least one child among 10 people died in the accident. It is noticed that children have a higher risk of suffering serious and fatal injuries in side impact than in other impact directions. Therefore, it is great important to protect children in side impact. However, procedure to test side impact performance of child restraint system (CRS) has not been agreed on yet in the world. This paper focuses on analyzing the difference between NHTSA and ISO 29062 side impact test procedures. It will help us perfect our automobile safety standards system and constitute our relevant laws as a valued reference through researching lateral impact dynamic test of CRS in other advanced countries.

THE EFFECTIVENESS OF THE COMPONENT IMPACT TEST METHOD FOR THE SIDE IMPACT INJURY ASSESSMENT OF THE DOOR TRIM

2008 ◽  
Vol 22 (09n11) ◽  
pp. 1766-1773
Author(s):  
YOUNGHAN YOUN ◽  
JEONG-SEO KOO
Keyword(s):  
Impact Test ◽  
Reaction Force ◽  
Design Guidelines ◽  
Test Method ◽  
Abdominal Injury ◽  
Side Impact ◽  
Crash Test ◽  
Conservation Of Energy ◽  
Absorption Energy ◽  
The Impact

The complete evaluation of the side vehicle structure and the occupant protection is only possible by means of the full scale side impact crash test. But, auto part manufacturers such as door trim makers can not conduct the test especially when the vehicle is under the developing process. The main objective of this study is to obtain the design guidelines by a simple component level impact test. The relationship between the target absorption energy and impactor speed were examined using the energy absorbed by the door trim. Since each different vehicle type required different energy levels on the door trim. A simple impact test method was developed to estimate abdominal injury by measuring reaction force of the impactor. The reaction force will be converted to a certain level of the energy by the proposed formula. The target of absorption energy for door trim only and the impact speed of simple impactor are derived theoretically based on the conservation of energy. With calculated speed of dummy and the effective mass of abdomen, the energy allocated in the abdomen area of door trim was calculated. The impactor speed can be calculated based on the equivalent energy of door trim absorbed during the full crash test. With the proposed design procedure for the door trim by a simple impact test method was demonstrated to evaluate the abdominal injury. This paper describes a study that was conducted to determine sensitivity of several design factors for reducing abdominal injury values using the matrix of orthogonal array method. In conclusion, with theoretical considerations and empirical test data, the main objective, standardization of door trim design using the simple impact test method was established.

Study on one Kind of Test Method of Simplified Side Impact Using Sled Test

2011 ◽  
Vol 301-303 ◽  
pp. 1249-1253
Author(s):  
Zhi Xin Liu ◽  
Lei Lou ◽  
Yun Sheng Yang
Keyword(s):  
Safety Performance ◽  
Test Method ◽  
Side Impact ◽  
Velocity Pulse ◽  
Sled Test ◽  
Full Vehicle ◽  
Vehicle Test

Frontal sled test is an important platform that widely employed to predict and assess changes in overall safety performance as vehicle structural and occupant restraint parameters are varied. In this paper, a characteristic door intrusion velocity pulse in side impact was analyzed and a set of side test jig was designed, which realized one kind of simplified side impact sled test method. Then we compared the injury values of the side impact dummy, the result showed that there existed good correlation between sled test and full-vehicle test.

scholarly journals Neck Moment Characterization of Restrained Child Occupant at Realistic Nontest Standard Higher Impact Speed of 32.2 km/h

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
S. Shasthri ◽  
V. Kausalyah ◽  
Qasim H. Shah ◽  
Kassim A. Abdullah ◽  
Moumen M. Idres ◽  
...  
Keyword(s):  
Interactive Effect ◽  
Impact Angle ◽  
Side Impact ◽  
Impact Speed ◽  
Child Restraint ◽  
Child Restraint System ◽  
Impact Angles ◽  
Child Occupant ◽  
The Impact

The effects of bullet vehicle crash impact angle, child restraint system design, and restraint harness slack at side impact speed of 32.2 km/h (20 mph) on moments sustained at the neck by a three-year-old child are investigated. Mathematical models are built using the response surface method based on simulation results whereby good fitness is achieved. The singular and cross interactive effect of each predictor on the neck moment are analyzed. The number of significant parameters affecting the neck moment is shown to be the largest for wide impact angles (ϕ≥60°) and the impact angle parameter is largely revealed to be the most sensitive. An ideal safe range for low neck moment has been established to be within ϕ angles 45° and 65°. It is further shown that the nature of all parameters effect on the neck moment is highly dependent on the impact angle range.

Development of Pole Side Impact Sled Test Method using Multiple Actuators for EuroNCAP

2012 ◽  
Author(s):  
Akira Kinoshita ◽  
Naoki Shigeno ◽  
Tatsuya Fukushima ◽  
Hermann Steffan
Keyword(s):  
Test Method ◽  
Side Impact ◽  
Sled Test ◽  
Multiple Actuators

A Methodology of Side Impact Sled Test in MADYMO

2013 ◽  
Vol 779-780 ◽  
pp. 1110-1116
Author(s):  
Zhi Xiong Ma ◽  
Li Ping Dong ◽  
Xi Chan Zhu
Keyword(s):  
Model Validation ◽  
Impact Test ◽  
Full Scale ◽  
Side Impact ◽  
Sled Test

This paper put forward a new methodology of side impact sled test that separated an indoor panel into several parts and parameterized every parts speed curve getting from full scale side MDB impact test and reconstructed every parts motion using parametric speed curve in MADYMO. The advantage of this methodology is that the model validation is simplified and all side dummys injury values according to side impact sled test are very coincident with that according to full scale side MDB impact test.

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