| dc.contributor.advisor | Himmetoğlu, Selçuk | |
| dc.contributor.author | Karabeyoğlu, Cansu | |
| dc.date.accessioned | 2019-10-21T12:42:43Z | |
| dc.date.issued | 2019-07 | |
| dc.date.submitted | 2019-06-19 | |
| dc.identifier.uri | http://hdl.handle.net/11655/9443 | |
| dc.description.abstract | In this work of thesis, whiplash injury and its relation with rear end accidents are
studied. After brief explanation on what whiplash injury is and its effects on both
people’s health and economy, injury mechanism is studied. Injury criteria on the subject
of whiplash injuries are explained, and the major factors affecting the whiplash injury
risk in rear end collisions are discussed. Alternative car seat and head restraint designs
for reducing the whiplash injury risk are considered and physical properties of such
head restraint design are optimized as a reference for further design studies. | tr_TR |
| dc.description.tableofcontents | ABSTRACT
ÖZET
ACKNOWLEDGEMENTS
TABLE OF CONTENTS
LIST OF FIGURES
LIST OF TABLES
1. INTRODUCTION
2. GENERAL INFORMATION
2.1. Whiplash Injury
2.2. Injury Criteria and Thresholds
2.2.1. The Neck Injury Criterion (NIC)
2.2.2. The ۼܑܒ Criterion
2.2.3. The ܕܓۼ Criterion
2.2.4. The Intervertebral Neck Injury Criterion (IV-NIC)
2.2.5. The Neck Displacement Criterion (NDC)
2.2.6. The Lower Neck Load Index (LNL)
2.3. Affecting Factors
2.3.1. Crash Severity
2.3.2. Seating Position
2.3.3. Occupant Related Factors
2.3.4. Seat Design and Head Restraint Geometry
3. EXPERIMENTAL STUDIES
3.1. Seatback Angle Study
3.1.1. Experiment Results and Discussion
3.2. Head Range of Motion and Torso Extension Study
3.2.1. Measurement Device
3.2.2. Range of Motion Measurement
3.2.3. Results of the Experiments
4. COMPUTATIONAL STUDIES
4.1. Mechanical Properties of the Car Seat
4.1.1. Head Restraint Model
4.1.2. Energy absorber at the bottom of the seat pan
4.1.3. Head-restraint damper at the top of the seatback
4.1.4. Recliner Mechanical Properties
4.1.5. Seat Foam Mechanical Properties
4.1.6. Seatpan Angle of the Seat and H-Point Height
4.2. Adjusted Seating Positions at 15°, 20°, 25° and 30° Seatback Angles
4.3. Selection of the Optimized Car Seat
4.3.1. Seatpan damper is locked + recliner breakaway is removed (RONB)
4.3.2. Seatpan damper is locked + recliner with breakaway (ROWB)
4.3.3. Seatpan damper is active + recliner breakaway is removed (RSNB)
4.3.4. Seatpan damper is active + recliner with breakaway (RSWB)
4.3.5. Seatpan damper is active + recliner is locked (SOLR)
4.4. Performance of the Car Seat at Various Severities of Crash Pulses
4.4.1. At 15° Seatback Angle
4.4.2. At 20° Seatback Angle
4.4.3. At 25° Seatback Angle
4.4.4. At 30° Seatback Angle
4.5. Adaptation of the Head Restraint Model to the Simulations
4.5.1. Simulations with Locked Head Restraint
4.5.2. Damping Simulations
4.5.3. Performance on High and Low Severity Crash Pulses
4.5.4. Comparison with the Experimental Results
5. RESULTS AND DISCUSSION
5.1. Comparison of the Seat’s Performance with and without the New HR design
5.1.1. TR16 Test Standards (Low Severity Crash)
5.1.2. IIWPG Test Standards (Medium Severity Crash)
5.1.3. TR24 Test Standards (High Severity Crash)
5.2. Discussion
6. CONCLUSION
7. REFERENCES
APPENDIX
APPENDIX 1 – RANGE OF MOTION STUDY OF NECK
CURRICULUM VITAE | tr_TR |
| dc.language.iso | en | tr_TR |
| dc.publisher | Fen Bilimleri Enstitüsü | tr_TR |
| dc.rights | info:eu-repo/semantics/openAccess | tr_TR |
| dc.subject | Vehicle rear impact | tr_TR |
| dc.subject | Whiplash injury | tr_TR |
| dc.subject | Head restraint design | tr_TR |
| dc.subject | Car seat | tr_TR |
| dc.subject.lcsh | Konu Başlıkları Listesi::Teknoloji. Mühendislik | tr_TR |
| dc.title | Smart Car Seat Design for Safety and Comfort | tr_TR |
| dc.type | info:eu-repo/semantics/masterThesis | tr_TR |
| dc.description.ozet | Bu tez çalışmasında, boyun incinmesi ve araçlarda arkadan çarpışmalarla ilişkisi
incelenmiştir. Boyun incinmesi ve bunun insan sağlığına ve ekonomiye etkileriyle ilgili
kısa bir açıklamadan sonra, yaralanma mekanizması incelemiştir. Boyun incinmesi
konusunda yaralanma kriterleri açıklanarak, arkadan çarpışmalarda boyun incinmelerine
neden olan ana faktörler hakkında bilgi verilmiştir. Boyun yaralanması riskini azaltacak
alternatif araç koltuğu ve koltuk başlığı tasarımları değerlendirilerek, konuyla ilgili bir
koltuk başlığı tasarımı, ileri çalışmlara referans olması için optimize edilmiştir. | tr_TR |
| dc.contributor.department | Makine Mühendisliği | tr_TR |
| dc.embargo.terms | 6 ay | tr_TR |
| dc.embargo.lift | 2020-04-24T12:42:43Z | |
| dc.subject.ieee | IEEE Thesaurus Terms::Engineering - general | tr_TR |
