Academic literature on the topic 'FMVSS 201'

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Journal articles on the topic "FMVSS 201"

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Jaradat, Waseem, Joseph Hassan, Guy Nusholtz, Khalil Taraman, and Sanaa Taraman. "Effect of Operational Testing and Trim Manufacturing Process Variation on Head Injury Criterion in FMVSS 201 Tests." SAE International Journal of Passenger Cars - Mechanical Systems 1, no. 1 (2008): 913–24. http://dx.doi.org/10.4271/2008-01-1218.

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Cho, Kyu-Chun, Man-Ho Ha, Hong-ju Moon, and Young-Gon Kim. "A Study on the Structural Strength Evaluation for the Development of One-ton Grade Commercial Vehicle Seat Frame for the FMVSS 201 Model." Korean Society of Manufacturing Process Engineers 17, no. 2 (2018): 130–36. http://dx.doi.org/10.14775/ksmpe.2018.17.2.130.

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Ivarsson, J., D. C. Viano, P. Lo¨vsund, and Y. Parnaik. "Head Kinematics in Mini-Sled Tests of Foam Padding: Relevance of Linear Responses From Free Motion Headform (FMH) Testing to Head Angular Responses." Journal of Biomechanical Engineering 125, no. 4 (2003): 523–32. http://dx.doi.org/10.1115/1.1590360.

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The revised Federal Motor Vehicle Safety Standard (FMVSS) No. 201 specifies that the safety performance of vehicle upper interiors is determined from the resultant linear acceleration response of a free motion headform (FMH) impacting the interior at 6.7 m/s. This study addresses whether linear output data from the FMH test can be used to select an upper interior padding that decreases the likelihood of rotationally induced brain injuries. Using an experimental setup consisting of a Hybrid III head-neck structure mounted on a mini-sled platform, sagittal plane linear and angular head accelerations were measured in frontal head impacts into foam samples of various stiffness and density with a constant thickness (51 mm) at low (∼5.0 m/s), intermediate (∼7.0 m/s), and high (∼9.6 m/s) impact speeds. Provided that the foam samples did not bottom out, recorded peak values of angular acceleration and change in angular velocity increased approximately linearly with increasing peak resultant linear acceleration and value of the Head Injury Criterion HIC36. The results indicate that the padding that produces the lowest possible peak angular acceleration and peak change in angular velocity without causing high peak forces is the one that produces the lowest possible HIC36 without bottoming out in the FMH test.
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Lander, Natalie Jayne, Lisa Michele Barnett, Helen Brown, and Amanda Telford. "Physical Education Teacher Training in Fundamental Movement Skills Makes a Difference to Instruction and Assessment Practices." Journal of Teaching in Physical Education 34, no. 3 (2015): 548–56. http://dx.doi.org/10.1123/jtpe.2014-0043.

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The purpose of this study was to investigate instruction and assessment of fundamental movement skills (FMSs) by Physical Education (PE) teachers of Year 7 girls. Of 168 secondary school PE teachers, many had received little FMSs professional development, and although most assessed student FMSs proficiency, the quality of assessment was variable. Neither years of experience nor confidence influenced the quality of assessment tools used; however, greater FMSs training improved assessment practice regularity. Teachers more recently out of preservice were more confident in demonstrating FMSs. The results suggest that FMSs education for teachers should be a priority inclusion in both the training of preservice teachers and the ongoing professional development of in-service teachers.
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Barrett, T. M., J. G. Jones, and R. H. Wakimoto. "Forest Service Spatial Information Use for Planning Prescribed Fires." Western Journal of Applied Forestry 15, no. 4 (2000): 200–207. http://dx.doi.org/10.1093/wjaf/15.4.200.

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Abstract Forest management decision support systems (FMDSS) and geographic information systems have improved the incorporation of spatial information into forest planning. However, most FMDSS have been designed to implement silvicultural treatments rather than prescribed fire and fuel treatments. Results from a survey of 277 Forest Service employees in the western US show FMDSS need modifications to be better adapted to the needs of prescribed fire planners. Survey responses indicate that, on average, prescribed fire planners would like to increase the area treated annually by 12 times current levels. Available time windows for burning provide the most severe constraint for managers, while funding and personnel constraints were rated as comparably less important. Given these results, FMDSS may be most appropriately designed to help managers develop a long-term strategy for prioritizing prescribed fire treatments. Necessary FMDSS modifications may include different methods of delineating treatment boundaries, improved integration with wildlife habitat models, emphasis on short-term costs, and flexible intervals between repeated treatments. West. J. Appl. For. 15(4):200–207.
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Mo, Yimin, Peng Shen, Juncheng Lv, Zhigui Lin, Yongbin Liang, and Changye Liu. "A study of multibody modeling and calibration method for FMVSS 208 rollover test." International Journal of Crashworthiness 24, no. 6 (2018): 615–31. http://dx.doi.org/10.1080/13588265.2018.1501945.

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Cruz-Jaramillo, I. L., C. R. Torres-San Miguel, L. Martínez-Sáez, V. Ramírez-Vela, and G. M. Urriologoitia-Calderón. "Numerical Low-Back Booster Analysis in a 6-Year-Old Infant during a Dolly Rollover Test." Journal of Advanced Transportation 2020 (February 1, 2020): 1–9. http://dx.doi.org/10.1155/2020/5803623.

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This paper analyzes the possible head and chest injuries, produced in a Hybrid III dummy model of a six-year-old child during a rollover test, while the child uses a passive safety system low-back booster (LBB). Vehicle seats and passive safety systems were modeled with a CAD (Computer Aided Design) software; later, all elements were analyzed using the finite element method (FEM) with LS-DYNA® software. The border conditions were established for each study, in accordance with the regulations of Federal Motor Vehicle Safety Standards (FMVSS), and following the FMVSS 213 standard for the mounting and fastening of the infant, the FMVSS 208 for the dolly methodology test with the vehicle rollover was performed, implementing such analysis under the same conditions for a vehicle Toyota Yaris 2010. The numerical simulations were performed during an interval of 1 second, obtaining data values for periods of 2 milliseconds. This paper examines the efficiency of the system; three case studies were carried out: Study I: vehicle seat belt (VSB); Study II: the LBB system was secured by the seat belt; Study III: the LBB system with ISOFIX anchorage. The values of decelerations for the head and thorax of the infant were obtained, as well as neck flexion and thoracic deflection. The main factor to reduce injuries during a rollover accident is the correct anchorage of the LBB, and this is achieved with the ISOFIX system, since it prevents the independent movement of the LBB, unlike when it is fastened with the seat belt of the vehicle. The results show low levels of head and chest injury when ISOFIX is used because of reduced thoracic deflection during infant retention.
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Cruz-Jaramillo, I. L., C. R. Torres-San-Miguel, O. Cortes-Vásquez, and L. Martínez-Sáez. "Numerical Low-Back Booster Analysis on a 6-Year-Old Infant during a Frontal Crash Test." Applied Bionics and Biomechanics 2018 (July 16, 2018): 1–6. http://dx.doi.org/10.1155/2018/2359262.

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This work studies descriptively the Head Injury Criterion (HIC) and Chest Severity Index (CSI), with a finite element model of the Hybrid III dummy type, for six-year-old subjects in a frontal vehicular collision, using the low-back booster (LBB) passive safety system. The vehicle seats and the passive safety systems were modelled in CAD (computer aided design) software. Then, the elements were analysed by the finite element method (FEM) in LS-DYNA® software. The boundary conditions were established for each study, according to the regulations established by the Federal Motor Vehicle Safety Standard (FMVSS), following the FMVSS 213 standard. The numerical simulations were performed during an interval of 120 ms and recording results every 1 ms. In order to analyse the efficiency of the system, the restraint performance of the LBB system is compared with the restraint configuration of the vehicle safety belt (VSB) only. The obtained injury criteria with the LBB system shows its ability to protect children in a frontal collision. The analyses allow obtaining the deceleration values to which the dummy head and chest was subjected. Of the studies herein performed, Study I: VSB obtained a HIC36 of 730.4 and CSI of 315.5, while Study II: LBB obtained a HIC36 of 554.3 and CSI of 281.9. The outcome shows that the restraint efficiency of each studied case differs. Used materials, the attachment system of the LBB, and the belt restraint system properly placed over the infant trunk are the main factors reducing the injury criteria rate.
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Lander, Natalie J., Lisa Hanna, Helen Brown, et al. "Physical Education Teachers’ Perspectives and Experiences When Teaching FMS to Early Adolescent Girls." Journal of Teaching in Physical Education 36, no. 1 (2017): 113–18. http://dx.doi.org/10.1123/jtpe.2015-0201.

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Purpose:Competence in fundamental movement skills (FMSs) is positively associated with physical activity, fitness, and healthy weight status. However, adolescent girls exhibit very low levels of fundamental movement skill (FMS) proficiency.Method:In the current study, interviews were carried out with physical education teachers to investigate their perspectives of: (i) the importance and relevance of teaching FMSs to Year 7 girls, and (ii) the factors influencing effective FMS instruction.Results:There were two major findings in the data: Year 7 was perceived to be a critical period to instruct girls in FMSs; and current teaching practices were perceived to be suboptimal for effective FMS instruction.Conclusion:Apparent deficits in current FMS teaching practice may be improved with more comprehensive teacher training (both during physical education teacher education (PETE) and in in-service professional development) in pedagogical strategies, curriculum interpretation, and meaningful assessment.
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Wang, Xinnian, Keyi Xing, Chao-Bo Yan, and Mengchu Zhou. "A Novel MOEA/D for Multiobjective Scheduling of Flexible Manufacturing Systems." Complexity 2019 (June 2, 2019): 1–14. http://dx.doi.org/10.1155/2019/5734149.

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This paper considers the multiobjective scheduling of flexible manufacturing systems (FMSs). Due to high degrees of route flexibility and resource sharing, deadlocks often exhibit in FMSs. Manufacturing tasks cannot be finished if any deadlock appears. For solving such problem, this work develops a deadlock-free multiobjective evolutionary algorithm based on decomposition (DMOEA/D). It intends to minimize three objective functions, i.e., makespan, mean flow time, and mean tardiness time. The proposed algorithm can decompose a multiobjective scheduling problem into a certain number of scalar subproblems and solves all the subproblems in a single run. A type of a discrete differential evolution (DDE) algorithm is also developed for solving each subproblem. The mutation operator of the proposed DDE is based on the hamming distance of two randomly selected solutions, while the crossover operator is based on Generalization of Order Crossover. Experimental results demonstrate that the proposed DMOEA/D can significantly outperform a Pareto domination-based algorithm DNSGA-II for both 2-objective and 3-objective problems on the studied FMSs.
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Dissertations / Theses on the topic "FMVSS 201"

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Bourne, David. "Alternative dynamic impact testing : component screening of FMH-energy absorber safety plastic\2122." Thesis, University West, Department of Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-833.

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Henry, Kevin Claude. "Soft Surface Roll Mechanics Parameters for Light Vehicle Rollover Accident Reconstruction." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/1436.

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Light vehicle rollover accidents on soft surfaces can be modeled assuming constant drag with linear motion equations and other engineering principles. The concept of using segment average results to evaluate roll mechanics parameters throughout a roll sequence, and specifically, segment duration to evaluate vehicle trajectory between ground impacts is developed. The trajectory model is presented, explained and compared to values obtained by analyzing digital video of rollover crash tests. Detailed film analysis procedures are developed to obtain data from rollover crash tests that are not otherwise documented. Elevation of the center of gravity of vehicles is obtained where instrumentation does not explicitly yield this data. Instantaneous center of gravity elevation data throughout a roll sequence provides the opportunity to calculate descend distances as a vehicle travels from one ground contact to another. This data is used to quantify severity of ground impacts as a vehicle interact with the ground throughout a roll sequence. Segment average analysis is a reasonable method for determining general roll mechanics parameters. Because of the chaotic nature of rollover accidents, the range of effective drag factors for a given roll surface may be quite large. Choosing an average of typical drag factors is a reasonable approach for a first-order approximation although certain parameters may be predicted less accurately than if actual values were known. The trajectory results demonstrate the influence of drag factor descent height calculations. Typical constant drag factors tend to overestimate descent height early in a roll sequence and underestimate descent height later in the sequence. The trajectory model is a useful tool to aid in understanding rollover mechanics although a rolling vehicle may be in contact with the ground for a significant fraction of a roll segment. The model should not be used at locations in roll sequences where there are extremes in translational center of gravity decelerations. These extremes include the segments immediately following overturn where there are large angular accelerations and large differences between the tangential velocity of the vehicle perimeter and the translational velocity of the center of gravity, as well as segments that include vehicle impacts with irregular topography.
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Conference papers on the topic "FMVSS 201"

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Xiao, Xinran (Sharon). "Plastic Material Modeling for FMVSS 201 Simulation." In SAE 2002 World Congress & Exhibition. SAE International, 2002. http://dx.doi.org/10.4271/2002-01-0385.

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Spingler, G. "FMVSS 201 : Appropriate Injected Rib Design for Trim Panels." In Non-Conference Specific Technical Papers - 2007. SAE International, 2007. http://dx.doi.org/10.4271/2007-01-2128.

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Gerault, Patrice, Mark Huber, and Mike Rosser. "Structural Thermoplastic Composites for Interior Energy Management to Meet FMVSS 201 and 208." In International Congress & Exposition. SAE International, 1991. http://dx.doi.org/10.4271/910045.

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Haque, Enamul, Jawahar Kamarajan, and Guoyu Yang. "Development and Characterization of New Headliner Material to Meet FMVSS 201 Requirements." In SAE 2000 World Congress. SAE International, 2000. http://dx.doi.org/10.4271/2000-01-0624.

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Gandhe, Gajanan V., Louis Lorenzo, and Yoshinori Noritake. "Design Development of Energy Absorbing Ribs for Meeting FMVSS 201 Extended Head Impact." In International Congress & Exposition. SAE International, 1997. http://dx.doi.org/10.4271/970161.

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Jaradat, Waseem, Joseph Hassan, Guy Nusholtz, Khalil Taraman, and Sanaa Taraman. "A Comparison Between Head Impact Response of Hybrid III and THOR-NT Dummy Heads in FMVSS201 Tests." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-16322.

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The impact response of the forehead of both the Hybrid III dummy and THOR dummy was designed to the same human surrogate data. Therefore, when the forehead of either dummy is impacted with the same initial conditions, the acceleration response and consequently the head impact criterion HIC should be similar. If the THOR dummy is used in the FMVSS 201 free motion headform tests, then when it strikes the interior trim of the vehicle, as prescribed by the FMVSS 201 procedure, the acceleration response should be similar to that of the Hybrid III, as long as only the forehead engages the vehicle interior. To compare and contrast the response of the two dummy heads under FMVSS 201 testing, a design of experiments (DOE), that is a function of seven variables, is utilized to develop a mathematical model of the Head Impact Response. These independent parameters include five trim manufacturing process variables that relate to the interior that the dummy head hits in 201 testing: mold temperature, melt temperature, packing pressure, hold pressure, and injection speed. Two operational variables were also considered: free motion Headform approach angle and the dummy head drop calibration. An incomplete block design approach is utilized in order to significantly reduce the number of experiments. The DOE approach determines the response in the form of the Head Impact Criterion (HIC) with respect to the seven variables at 99% confidence level. The results describe the response data of both dummy heads. The response data of the dummy heads is described. Results indicate that the Hybrid III dummy head and the THOR dummy head have significantly different response characteristics in terms of magnitude of response, variation to different input conditions, repeatability, HIC values, and acceleration time history.
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He, Simon Xunnan, Tad Devilbiss, and Ravi Angamuthu. "A Design Methodology for Interior Components to Comply with FMVSS 201 Head Impact Requirement." In SAE 2000 World Congress. SAE International, 2000. http://dx.doi.org/10.4271/2000-01-0638.

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Lorenzo, Luis, Mansour Mirdarnadi, and Karen Fennessy-Ketola. "A Methodology for Developing Interior Trim Panels to Comply with the New FMVSS No. 201 Legislation." In International Congress & Exposition. SAE International, 1996. http://dx.doi.org/10.4271/960152.

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Danesh Sararoudi, Mehdi, Nima Shamsaei, Hossein Darijani, and Reza Naghdabadi. "Engineering Development of an Instrument Panel Concept Using a Unified FE Modeling Approach." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95058.

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In today’s global economy, the automotive design engineer’s responsibilities are made more complex by the differences between regulatory requirements of the various global markets. This paper compares instrument panel head impact requirements of FMVSS 201 with its European counterparts, ECE 21. The behavior during a head impact test has been studied. Due to the gravity of the cockpit module, the sag has been analyzed to simulate shipping, loading, and assembly conditions. The interior parts of the vehicle cabin are exposed to temperature variations due to radiation effect of sun ray or freezing temperature in winter. Plastic parts appear to be more thermally susceptible than steel parts in temperature variations. The key issue was minimizing thermal deformation while developing the IP. The cockpit design engineers have gained an understanding of the factors involved in ensuring that their design fully meets the requirements of the subject regulations. CAE simulations performed which are repetitive processes and a unified FE modeling approach has handled analyses by different codes.
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Chickmenahalli, Arun. "Analysis of Different Countermeasures in Response to FMVSS 201 Upper Interior Head Impact Protection and A Comparison Study on the Injury Parameters and Energy Absorption." In International Body Engineering Conference & Exposition. SAE International, 2001. http://dx.doi.org/10.4271/2001-01-3058.

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