Download or read book Kinematic Analysis of a Motorcycle and Rider Impact on a Concrete Barrier Under Different Impact and Road Conditions written by Shashikumar Ramamurthy and published by . This book was released on 2007 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: In many countries, motorcycle crashes constitutes a significant proportion of all road crash fatalities and injuries and safety measures can be successful only if much more attention is devoted to this issue. Several Roadside guard systems such as concrete barriers, wire rope barriers and steel guard rails are used to protect occupants of four wheels and heavy trucks. Yet motorcycle riders are vulnerable to any crash scenario, resulting in major injuries. Also the climatic conditions have a major impact on motorcyclists. Thousands of motorcyclists are killed or injured in road accidents. The need to provide and improve crash survival programs in collision environment is the subject matter of interest and research. In this research, simulation of full scale crash tests of a motorcycle with rider driven in an upright position and sliding on the road surface impacting on steel barriers and concrete barriers are carried out by DEKRA Accident Research, to analyze real-world crashes. It is most important to evaluate head injury risks as it causes a serious threat to life. The motorcycle model with a rider are developed in MADYMO 6.3 and validated using the real time barrier tests. Under normal road conditions, the motorcycle driven in an upright position is assumed to have a pre-crash velocity of 60km/h impacting at 12° on a concrete barrier. The validation criteria used are: motorcycle kinematics, rider kinematics and the rider injury criteria. The results obtained in this research are found to be in a reasonable correlation with the experimental data. A parametric study is then conducted to investigate the crash for various impact speeds (40 km/h, 60 km/h and 80 km/h) under different impact scenarios (6° impact, 8° impact, 12° impact, 24° impact, 45° impact, 60° impact and 90° impact). An icy road condition is then studied. A study of kinematics and injury parameters for a motorcycle rider is proven to be different under various impact speeds (40 km/h, 60 km/h and 80 km/h) under different impact scenarios (6° impact, 8° impact, 12° impact, 24° impact, 45° impact, 60° impact and 90° impact). Design of Experiments is conducted to study the contribution of the road condition, impact angles, speed and the interaction of these factors. The result from this study helps in understanding the factors affecting the crash and rider injuries. Design of Experiment also provides a valuable knowledge about the contribution of factors chosen (road type, angle of collision and speed) towards accidents.

Download or read book Motorcycle and Safety Barrier Crash testing written by Chantel Duncan and published by . This book was released on 2000 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report has been prepared by the Monash University Accident Research Centre. It constitutes the first stage of a potential multi-stage project and takes the form of a feasibility study of motorcycle and safety barrier crash-testing. Road safety barriers are designed to enhance the safety of the road infrastructure by containing errant vehicles and reducing the severity of off-path collisions. Experience indicates that conventional barrier systems used in accordance with specific guidelines have performed well in protecting the occupants of passenger cars. However, their effects on the safety of motorcyclists, is somewhat problematic. Given the limited available information on motorcycle-barrier interactions, and the lack of established procedures for motorcycle crash-testing, ATSB commissioned a preliminary investigation of relevant issues. This report is the principal output of these preliminary investigations. The main purpose of this initial work was to recommend a research method for investigating the interactions between motorcycles and road safety barriers. Specific objectives were to: identify barrier design issues likely to impact on motorcycle rider safety; identify relevant rider injury mechanisms; identify and assess the feasibility of research methods for investigating interactions between motorcycles and safety barriers; recommend a research program, addressing the overall aims described above. The study has involved a review of the international literature on relevant topics, analysis of motorcycle crash records, and consultation with technical experts and key stakeholders in three States.

Download or read book Dynamics and Safety Assessment of a Truck Impact Onto Various Types of Roadside Concrete Barriers on Curved Roads written by Prasanna K. Parvatikar and published by . This book was released on 2013 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every vehicle manufacturing company invests time and money in researching all the possible ways of eliminating the serious injury to the occupants. These efforts are concentrated on making the vehicle structure and interior robust enough to absorb all the impact loads, as well as development of means to contain the occupants by seatbelts and airbags, thereby reducing the possibilities of impact injuries. The approach might vary but the intent will always remain the occupant safety. The objective of this study is to analyze the barrier design safety performance deployed on the highway roadsides. Having many different designs of roads, it is impossible to have similar kind of roadside barriers on all locations. Some barriers will perform better on particular road designs and some will not. Hence, a detailed study is conducted here to analyze and document the behavior of vehicles after impact onto different types of design barriers at different road conditions. A finite element analysis is conducted using the LS-DYNA finite element (FE) code with a modeling tool HYPERMESH. The analytical results from simulation are compared with the test results from literature. Next, the influence of many different parameters such as road curvature, slope on barrier design, vehicle speed etc., on the occupant safety are studied. The study also focuses on analyzing the effect of these parameters on vehicle lift, roll, occupant impact velocity, occupant ride-down acceleration and angular acceleration. The results from this study indicate that even though New Jersey barrier design increases the vehicle lift and occupant impact velocity, it makes sure that the vehicle does not vault the barrier and enter the other side of the traffic. The study also identifies the impact angle to be more critical than the road curvature. Hence, deploying the proper barrier designs based on the road curvature will ensure occupant safety.

Download or read book Motorcycle Accident Reconstruction written by Nathan Rose and published by SAE International. This book was released on 2022-01-07 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accident reconstruction utilizes principles of physics and empirical data to analyze the physical, electronic, video, audio, and testimonial evidence from a crash, to determine how and why the crash occurred, how the crash could have been avoided, or to determine whose description of the crash is most accurate. This process draws together aspects of mathematics, physics, engineering, materials science, human factors, and psychology, and combines analytical models with empirical test data. Different types of crashes produce different types of evidence and call for different analysis methods. Still, the basic philosophical approach of the reconstructionist is the same from crash type to crash type, as are the physical principles that are brought to bear on the analysis. This book covers a basic approach to accident reconstruction, including the underlying physical principles that are used, then details how this approach and the principles are applied when reconstructing motorcycle crashes. This second edition of Motorcycle Accident Reconstruction presents a thorough, systematic, and scientific overview of the available methods for reconstructing motorcycle crashes. This new edition contains: Additional theoretical models, examples, case studies, and test data. An updated bibliography incorporating the newest studies in the field. Expanded coverage of the braking capabilities of motorcyclists. Updated, refined, and expanded discussion of the decelerations of motorcycles sliding on the ground. A thoroughly rewritten and expanded discussion of motorcycle impacts with passenger vehicles. Updated coefficients of restitution for collisions between motorcycles and cars. A new and expanded discussion of using passenger car EDR data in motorcycle accident reconstruction. A new section covering recently published research on post-collision frozen speedometer readings on motorcycles. A new section on motorcycle interactions with potholes, roadway deterioration, and debris and expanded coverage of motorcycle falls. This second edition of Motorcycle Accident Reconstruction is a must-have title for accident reconstructionists, forensic engineers, and all interested in understanding why and how motorcycle crashes occur.

Download or read book Kinematic Analysis of a Motorcyclist with and Without a Tank Mounted Airbag in a Passenger Car Collision Environment written by Kranthi Kiran Nelluri and published by . This book was released on 2004 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Author's abstract shortened by cataloger] In many countries motorcycle crashes constitute a significant proportion of all road crash fatalities and injuries and safety measures can be successful only if much more attention is devoted to this issue. This study concerns the development and validation of a three dimensional analytical model representing a motorcycle with rider. Several motorcycle to barrier tests were performed at the laboratories of the TNO Crash safety research centre and several measurements were carried out, including measurements to determine the inertia properties of the motorcycle segments. The motorcycle model was developed in MADYMO 6.0.1 and is validated using the real time barrier tests conducted at the TNO crash research centre. The validation criteria used is motorcycle kinematics, motorcycle accelerations and contact forces between front wheel and load cell barrier.

Download or read book Concrete Barrier Accident Study written by Paul Christianson and published by . This book was released on 1974 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Motorcycle Crash Bars on the Injury Biomechanics of a Rider written by Kaushik M. Mysore and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A major proportion of motorcycle rider casualties is caused due to crashes against barriers or other automobiles such as cars, trucks, etc. The injury and fatality rates are higher in Asian countries as they are used as a means of transport to a large extent. Due to this alarming trend, motorcycle crash safety is becoming a critical matter of study over the last two decades. Road safety systems such as steel guard rails, concrete barrier, and wire rope barriers are primarily used to protect the occupants of the trucks or cars, yet motorcycle crashes against such guards and barriers systems resulted in severe injuries. The primary goal of this study is to reduce the injury responses on the lower extremity body parts as leg is one of the most unprotected regions of the body that is vulnerable to injuries during collision with the ground, fixed objects or other vehicles. Preliminary model development procedure is carried out that involves the motorcycle, ATD, barrier and crash bar modeling on CATIA and MADYMO. Furthermore, validation of the multibody system models is performed by comparing the simulation results with full scale crash test results. Next, five different types of crash bar designs are incorporated on the main frame of the motorcycle, and parametric studies are carried out for upright and sliding impact configurations. The injury responses from the parametric studies are evaluated/compared with and without the implementation of crash bars, and the efficacy of each type of leg guard design is determined. The results from the various impact configuration scenarios, for the most part, indicate a significant reduction in the injury parameters on the rider for motorcycle modeled with crash bars. Therefore, crash guards offer a potential means of reducing the injury responses of a motorcycle rider. The findings from this study can help in the development of better motorcycle leg protection devices that would protect the rider during accidents.

Download or read book Traffic Control Design for Portable Concrete Barriers written by and published by . This book was released on 2006 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Motorcycles Test and Analysis Procedures for Research Evaluation of Rider Crash Protective Devices Fitted to Motorcycles Definition of Impact Conditions in Relation to Accident Data written by British Standards Institute Staff and published by . This book was released on 2006-01-26 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motor cycles, Safety devices, Collisions (accident), Impact testing, Road accidents, Motor vehicles, Road safety, Hazards, Motor cyclists, Injuries, Risk analysis, Research, Collision tests

Download or read book An Analysis of Motorcycle Side Impact Interim Report of Test Results written by G. D. Livers and published by . This book was released on 1976 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Motorcycles Test and Analysis Procedures for Research Evaluation of Rider Crash Protective Devices Fitted to Motorcycles Motorcyclist Anthropometric Impact Dummy written by British Standards Institute Staff and published by . This book was released on 2006-01-26 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motor cycles, Safety devices, Collisions (accident), Impact testing, Road accidents, Motor vehicles, Road safety, Hazards, Motor cyclists, Mechanical effects (human body), Test dummies, Collision tests

Download or read book Motorcycles Test and Analysis Procedures for Research Evaluation of Rider Crash Protective Devices Fitted to Motorcycles Standardized Procedures for Performing Computer Simulations of Motorcycle Impact Tests written by British Standards Institute Staff and published by . This book was released on 2006-01-27 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motor cycles, Safety devices, Collisions (accident), Impact testing, Road accidents, Motor vehicles, Road safety, Hazards, Motor cyclists, Computer applications, Simulation, Collision tests

Download or read book Movable Concrete Median Barrier written by James E. Bryden and published by . This book was released on 1988 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Motorcycles Test and Analysis Procedures for Research Evaluation of Rider Crash Protective Devices Fitted to Motorcycles Full Scale Impact Test Procedures written by British Standards Institute Staff and published by . This book was released on 2006-01-26 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motor cycles, Safety devices, Collisions (accident), Impact testing, Road accidents, Motor vehicles, Road safety, Hazards, Motor cyclists, Collision tests

Download or read book Motorcycles Test and Analysis Procedures for Research Evaluation of Rider Crash Protective Devices Fitted to Motorcycles Documentation and Reports written by British Standards Institute Staff and published by . This book was released on 2006-01-26 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motor cycles, Safety devices, Collisions (accident), Impact testing, Road accidents, Motor vehicles, Road safety, Hazards, Motor cyclists, Documents, Reports, Collision tests

Download or read book Motorcycles Test and Analysis Procedures for Research Evaluation of Rider Crash Protective Devices Fitted to Motorcycles written by International Organization for Standardization and published by . This book was released on 1996 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Kinematics Body Landing of a Motorcycle Rider in Impact written by and published by . This book was released on 2011 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: