Tuesday, 8 March 2011

THOR Advanced Crash Test Dummy(Edited for week 10)

Hello all...

How are you today??? Hope u all always in healthy condition and happy. Today, when I busy 'google'ing and 'facebook'ing, accidentally, I have found something that great to share. It's about the newest dummy. Yeah, once be dummy always be dummy. But this dummy sure worthy to be shattered because it is important subject in vehicle crashing test. Err...do you understand what I'm trying to say?? Sorry, I think my English sometime broke itself :D

So, back to the dummies subject, this dummy is called THOR. THOR is adapted from some myth of Germany if I not Mistaken. It is characterize as hammer wielding 'god', associated with, thunder, storm, lightning, bla bla bla and lastly, protection of mankind( i think this reason why THOR is named ). THOR is invented by National Highway Traffic Safety Adminstration (NHTSA). It has been designed to assist the development and the evaluation of advanced vehicle occupant safety systems, and incorporates significantly improved biofidelity and greatly expanded injury assessment capabilities in all body regions. It is designed specifically for use in frontal and oblique crash environments, and the design also offers multi-directional capabilities of crash environment.

As an integral part of the THOR development program, the NHTSA has actively involved the participation of worldwide automotive manufacturers, research organizations, and government agencies in extensive test and evaluation trials. Through the generosity and cooperative efforts of expert individuals and institutions in North America, Japan, Europe, and Australia, many useful refinements have been identified and incorporated into the current THOR Alpha version

Wow...that THOR is great, so what about its look like?

Yeah, this is THOR Alpha. Handsome right?? lol...

So, what about capabilities of this THOR Alpha??

THOR Alpha offers numerous functional benefits as compared with previously existing crash test dummy technology:
  • Assistance in optimization of "smart" occupant restraint systems, including setting of air bag deployment thresholds and design of integrated advanced belt/ bag restraint systems;
  • Improved assessment of belt/ bag interactions;
  • Improved head kinematics, as a result of new neck and spine designs;
  • Improved neck injury assessment, including out-of-position injury assessment;
  • More realistic spinal kinematics, as a result of added spine flexibility;
  • Facility for assessment of seated posture effects upon restraint performance;
  • Detection of air bag, belt, and wheel rim interaction with the abdomen;
  • Facility for injury assessment at the hip joint;
  • Detailed assessment of foot motions and ankle/foot/tibia injury potential;
  • Facility for localized facial injury assessment

    THOR Alpha assembly
 


Side impact vehicle testing (child restraints)

Hi everyone...i got this link at NHTSA website..So, let us see and read this report to know better about Child Restraints..Soon, everyone will get a child..Then we have to take note about child's safety when in a car..Have fun and enjoy reading guys !!

click here to view the full report and analysis.

Sunday, 27 February 2011

Belted and unbelted passenger during impact (Week 9)

Hye everybody,
Today, I want to show to you guys some video that shown us how important to wearing seat belt and the effects when collision occurs. This video shown the differences of impact of passenger that wearing seat belt and without seat belt. Enjoy watching...^_^



Biomechanical Analysis (Week 8)

An accident reconstructionist may calculate that a person would have experienced a blow to the head in the range of 30g as a result of striking the windshield in a frontal collision. The biomechanical engineer would use the direction and severity of this impact to determine whether this accident would be likely to cause a spinal or head injury.
We use our knowledge of physics and mechanical properties of the musculoskeletal system to give a detailed description of the expected effects of a particular impact on an occupant.
Injuries cannot occur if an injury mechanism is not present. The dynamics of the vehicle during an accident define an occupant's motion. It is the force and direction of this motion which produces potential injury mechanisms. Thus, a biomechanical analysis must be done in conjunction with the accident reconstruction. For example, during a rollover accident it is impossible to define an occupant's ejection point and corresponding injuries without first defining the rollover sequence. Likewise, it is impossible to ascertain whether a seatbelt could prevent specific injuries without first defining an occupant's motions.

Biomechanical Accident Reconstruction (WEEK 7)

Exponent has considerable expertise in evaluating accidents and injuries. In accidents involving personal injury, biomechanics can be used to reconstruct the accident. A biomechanical accident reconstruction can be especially helpful in events that are unwitnessed or in which witness testimony conflicts about the events leading up to the injury.

The biomechanical accident reconstruction uses the same tools as other reconstruction techniques:

  • The sources of information that distinguish the biomechanical accident reconstruction are the medical records and medical imaging films. These records provide the foundational evidence for the biomechanical accident reconstruction. 
  • Biomechanical engineers do not diagnose the injuries; rather, they analyze the diagnoses made by medical personnel and determine the forces, torques, and exact injury mechanisms that created the injuries. Traumatic injuries can be differentiated from chronic or degenerative conditions. 
  • The injuries described in the medical records can thus be used as a "damage assessment" for the injured party, separating what happened in the accident from injuries that might have happened due to other causes.
 
Exponent performs biomechanical accident reconstructions in both collision and non-collision events, involving passenger cars, light and heavy trucks (including SUVs and vans), bicycles, and motorcycles. When performing these types of injury analyses,medical data is used and gathered as well as information from vehicle and scene inspections, accident reconstruction information, crash and sled testing, and computer modeling to answer biomechanical questions related to the use and performance of seats, seatbelts, airbags, roof structures, glazing, child restraint systems, and other vehicle components.


Biomechanical engineers can introduce a whole body of evidence beyond what a traditional engineer can testify to, and can reconstruct events leading up to and during non-vehicular injury-producing events. Typical accidents include slips and trips, falls and throws, criminal investigations involving injury or death, workplace injuries, and others. Human injury tolerance information including bone breaking strengths, joint ranges of motion and injury thresholds, and soft tissue properties provide additional evidence beyond what is obtained from the accident scene.

Saturday, 19 February 2011

Introduction to Biomechanics Safety (week 6)

Hello everybody,

This blog is assigned to us to make some research and share the information that we got about Biomechanics safety focus on internal and external injuries(automotive perspective). OK, before we started, do you know the meaning of biomechanics?

In wikipedia.org, it state that biomechanics come form ancient Greek language that had meaning of life and mechanics. So, generally, its means the application of mechanical toward biological mechanism such as human, animals, plants and other living things.

In term of human, biomechanics can be define as the science concerned with the internal and external forces acting on the human body and the effects produced by these forces. It also studies the way to prevent the injury of the human body from the internal and external forces.

We done with biomechanics definition. So, what it safety meaning? Safety in automotive means that the motor-vehicle that have duty to transport passenger and luggage from point A to point B as safely, as quick as possible, without harming the passenger and luggage, as comfortable as possible, efficiency and environmentally friendly as possible.

So, when we combine this two word 'biomechanics' and 'safety', we can defined this combination as the study of motor-vehicle, how can they create, to make sure human will survived when crash occurs. In other words, it can be call a studies that focusses on reducing transportation-related injuries and fatalities.

Friday, 18 February 2011

What is the role of Human Factors in Vehicle Safety?


The role of human factors is to provide an understanding of how drivers perform as a system component in the safe operation of vehicles. This role recognizes that driver performance is influenced by many environmental, psychological, and vehicle design factors.The focus is to determine which aspects of vehicle design should be modified to improve driver performance and reduce unsafe behaviors. An additional focus is to evaluate driver's capabilities to benefit from existing or new in-vehicle technologies