SlideShare a Scribd company logo
1 of 4
Download to read offline
1
Head & Brain Injury Report
With and Without Helmet
01. Introduction:
Head injuries are one of the most common injuries after motorcycle crashes. Motorcycles are a
significant cause of injury-related fatality and disability. In particular, head injury is a common
associated cause of death and long-term disability after a motorcycle crash. Despite these facts,
there remains an ongoing controversy as to the survival and disability advantages for riders who
wear motorcycle helmets.
02. Methods:
The system collects the data from angular rate sensors (3)
Channel 01: Rotation in Z-Axis (Wz)
Channel 02: Rotation in Y-Axis (Wy)
Channel 03: Rotation in X-Axis (Wx)
and linear accelerators (3)
Channel 04: Linear Acceleration in Z-Axis (az)
Channel 05: Linear Acceleration in Y-Axis (ay)
Channel 06: Linear Acceleration in X-Axis (ax)
The following tests are conducted by using the crash test dummy
2.1. Impact test without helmet
The testing machine consists of
A. Steel plate,
B. Supporter (supports the dummy neck)
C. Column (the supporter located on the column moves up and down)
D. Drop Tower
2
Fig_01. Impact test without helmet
The crash test dummy (Male) 10lb head is connected to the supporter with the help of
neck. The drop tower is used to drop head from the height of 50cm and is driven by gravity so
that the occipital (Rear of Head) hits steel plate .The data acquisition system collects data at 20
kHz from all channels.
2.2. Impact Test with Helmet
Fig_02. Impact Test with Helmet
In this test DOT approved motorcycle helmet (Scorpion) has used.
Column
Supporter
Neck
Steel Plate
3
03. Results:
Fig_03.Angular Acceleration Fig_04.Linear Acceleration
Fig_05.BrIC Based on CSDM Fig_06.HIC
Table_01
Angular Acceleration
(Deg/Sec)
Linear Acceleration
(g) BrIC HIC
UnHelmeted 5129.33 92.21 2.2 1642
Helmeted 3479.07 84.24 1.04 205
4
04. Discussions:
The angular acceleration of helmeted motorcyclists (3479.07 Deg/Sec) reduced by
1650.26 Deg/Sec than unhelmeted motorcyclists (5129.33 Deg/Sec).The Brain Injury Criteria
(BrIC) number is obtained for unhelmeted motorcyclists and helmeted motorcyclists as 2.2 and
1.04 respectively. From the Fig_05 the probability of brain injury is found at 2.2 BrIC from the
curve AIS4 is approximately 0.96 and at 1.04 BrIC from the curve AIS4 is approximately 0.4.
The probability of Brain Injury who wear the helmet has fall down from 2.2 (unhelmeted
motorcyclists) to 0.4.
The linear acceleration of helmeted motorcyclists slightly changed from 92.21
(unhelmeted motorcyclists) to 84.24 .The calculated HIC (Head Injury Criteria) number for
unhelmeted motorcyclists is 1642 and for helmeted motorcyclists is 205 ,at this HIC numbers
and from AIS2 moderate curve in Fig_06 the probability of head injury is plotted as
approximately 98% and approximately 9% respectively. So the helmet lowered the probability of
head injury by 89%.
05. Conclusions & Opinions:
 The helmet reduced the probability of head and brain injury.
 The effectiveness of helmet is more in linear acceleration than angular
acceleration (Rotational Brain Injury).
RAGAVA REDDY SAMA
305065506

More Related Content

Viewers also liked

機能的アサーション ー適切な自己主張という概念の分析
機能的アサーション ー適切な自己主張という概念の分析機能的アサーション ー適切な自己主張という概念の分析
機能的アサーション ー適切な自己主張という概念の分析仰 三田村
 
STIX, TAXII, CISA: Impact of the Cybersecurity Information Sharing Act of 2015
STIX, TAXII, CISA: Impact of the Cybersecurity Information Sharing Act of 2015STIX, TAXII, CISA: Impact of the Cybersecurity Information Sharing Act of 2015
STIX, TAXII, CISA: Impact of the Cybersecurity Information Sharing Act of 2015Priyanka Aash
 
(130525) #fitalk ntfs log tracker (english)
(130525) #fitalk   ntfs log tracker (english)(130525) #fitalk   ntfs log tracker (english)
(130525) #fitalk ntfs log tracker (english)INSIGHT FORENSIC
 
Maksud sajak kuingin berterima kasih
Maksud sajak   kuingin berterima kasihMaksud sajak   kuingin berterima kasih
Maksud sajak kuingin berterima kasihRibena Jaja
 
Head injury
Head injuryHead injury
Head injuryHIRANGER
 
Conservation Of Momentum
Conservation Of MomentumConservation Of Momentum
Conservation Of Momentumeliseb
 

Viewers also liked (10)

機能的アサーション ー適切な自己主張という概念の分析
機能的アサーション ー適切な自己主張という概念の分析機能的アサーション ー適切な自己主張という概念の分析
機能的アサーション ー適切な自己主張という概念の分析
 
STIX, TAXII, CISA: Impact of the Cybersecurity Information Sharing Act of 2015
STIX, TAXII, CISA: Impact of the Cybersecurity Information Sharing Act of 2015STIX, TAXII, CISA: Impact of the Cybersecurity Information Sharing Act of 2015
STIX, TAXII, CISA: Impact of the Cybersecurity Information Sharing Act of 2015
 
(130525) #fitalk ntfs log tracker (english)
(130525) #fitalk   ntfs log tracker (english)(130525) #fitalk   ntfs log tracker (english)
(130525) #fitalk ntfs log tracker (english)
 
Tetanus
TetanusTetanus
Tetanus
 
Maksud sajak kuingin berterima kasih
Maksud sajak   kuingin berterima kasihMaksud sajak   kuingin berterima kasih
Maksud sajak kuingin berterima kasih
 
American patrol
American patrolAmerican patrol
American patrol
 
Pemahaman teks
Pemahaman teksPemahaman teks
Pemahaman teks
 
The simpsons
The simpsonsThe simpsons
The simpsons
 
Head injury
Head injuryHead injury
Head injury
 
Conservation Of Momentum
Conservation Of MomentumConservation Of Momentum
Conservation Of Momentum
 

Similar to Head Injury Report With and Without Helmet

Fatigue simulation of automobile antiroll bars
Fatigue simulation of automobile antiroll barsFatigue simulation of automobile antiroll bars
Fatigue simulation of automobile antiroll barsPadmanabhan Krishnan
 
IRJET-Analysis of Load Factors and Modes of Failure on Spur Gear
IRJET-Analysis of Load Factors and Modes of Failure on Spur GearIRJET-Analysis of Load Factors and Modes of Failure on Spur Gear
IRJET-Analysis of Load Factors and Modes of Failure on Spur GearIRJET Journal
 
Review of shaft failure in Coil Car Assembly
Review of shaft failure in Coil Car AssemblyReview of shaft failure in Coil Car Assembly
Review of shaft failure in Coil Car AssemblyIRJET Journal
 
Bike Rack Design Project
Bike Rack Design ProjectBike Rack Design Project
Bike Rack Design Projectwangxdynasty
 
Bike Rack Design Project
Bike Rack Design ProjectBike Rack Design Project
Bike Rack Design Projectwangxdynasty
 
Elastic flexural torsional buckling
Elastic flexural torsional bucklingElastic flexural torsional buckling
Elastic flexural torsional bucklingBhavin Shah
 
IRJET- Design Analysis of a Automotive Shock Absorber Assembly
IRJET- Design Analysis of a Automotive Shock Absorber AssemblyIRJET- Design Analysis of a Automotive Shock Absorber Assembly
IRJET- Design Analysis of a Automotive Shock Absorber AssemblyIRJET Journal
 
IRJET- Design and Development of Electric Motorbike
IRJET-  	  Design and Development of Electric MotorbikeIRJET-  	  Design and Development of Electric Motorbike
IRJET- Design and Development of Electric MotorbikeIRJET Journal
 
IRJET- Duolever Suspension System in Motorcycle
IRJET-  	  Duolever Suspension System in MotorcycleIRJET-  	  Duolever Suspension System in Motorcycle
IRJET- Duolever Suspension System in MotorcycleIRJET Journal
 
Safety Features Evaluation of the Vehicle Interior Using Finite Element Analy...
Safety Features Evaluation of the Vehicle Interior Using Finite Element Analy...Safety Features Evaluation of the Vehicle Interior Using Finite Element Analy...
Safety Features Evaluation of the Vehicle Interior Using Finite Element Analy...IOSR Journals
 
Shafts and Shafts Components
Shafts and Shafts ComponentsShafts and Shafts Components
Shafts and Shafts ComponentsV-Motech
 
Design analysis of the roll cage for all terrain vehicle
Design analysis of the roll cage for all   terrain vehicleDesign analysis of the roll cage for all   terrain vehicle
Design analysis of the roll cage for all terrain vehicleeSAT Journals
 
Design and Development of All-Terrain Vehicle : Volume 1
Design and Development of All-Terrain Vehicle : Volume 1Design and Development of All-Terrain Vehicle : Volume 1
Design and Development of All-Terrain Vehicle : Volume 1IRJET Journal
 
Design analysis of the roll cage for all terrain
Design analysis of the roll cage for all   terrainDesign analysis of the roll cage for all   terrain
Design analysis of the roll cage for all terraineSAT Publishing House
 
Design analysis of the roll cage for all terrain
Design analysis of the roll cage for all   terrainDesign analysis of the roll cage for all   terrain
Design analysis of the roll cage for all terraineSAT Publishing House
 
A presentation on spur gear
A presentation on spur gearA presentation on spur gear
A presentation on spur gearDipjyoti Deka
 

Similar to Head Injury Report With and Without Helmet (20)

L1302026071
L1302026071L1302026071
L1302026071
 
Fatigue simulation of automobile antiroll bars
Fatigue simulation of automobile antiroll barsFatigue simulation of automobile antiroll bars
Fatigue simulation of automobile antiroll bars
 
IRJET-Analysis of Load Factors and Modes of Failure on Spur Gear
IRJET-Analysis of Load Factors and Modes of Failure on Spur GearIRJET-Analysis of Load Factors and Modes of Failure on Spur Gear
IRJET-Analysis of Load Factors and Modes of Failure on Spur Gear
 
Review of shaft failure in Coil Car Assembly
Review of shaft failure in Coil Car AssemblyReview of shaft failure in Coil Car Assembly
Review of shaft failure in Coil Car Assembly
 
Bike Rack Design Project
Bike Rack Design ProjectBike Rack Design Project
Bike Rack Design Project
 
Bike Rack Design Project
Bike Rack Design ProjectBike Rack Design Project
Bike Rack Design Project
 
Elastic flexural torsional buckling
Elastic flexural torsional bucklingElastic flexural torsional buckling
Elastic flexural torsional buckling
 
IRJET- Design Analysis of a Automotive Shock Absorber Assembly
IRJET- Design Analysis of a Automotive Shock Absorber AssemblyIRJET- Design Analysis of a Automotive Shock Absorber Assembly
IRJET- Design Analysis of a Automotive Shock Absorber Assembly
 
M1
M1M1
M1
 
IRJET- Design and Development of Electric Motorbike
IRJET-  	  Design and Development of Electric MotorbikeIRJET-  	  Design and Development of Electric Motorbike
IRJET- Design and Development of Electric Motorbike
 
IRJET- Duolever Suspension System in Motorcycle
IRJET-  	  Duolever Suspension System in MotorcycleIRJET-  	  Duolever Suspension System in Motorcycle
IRJET- Duolever Suspension System in Motorcycle
 
J012135863
J012135863J012135863
J012135863
 
Safety Features Evaluation of the Vehicle Interior Using Finite Element Analy...
Safety Features Evaluation of the Vehicle Interior Using Finite Element Analy...Safety Features Evaluation of the Vehicle Interior Using Finite Element Analy...
Safety Features Evaluation of the Vehicle Interior Using Finite Element Analy...
 
Shafts and Shafts Components
Shafts and Shafts ComponentsShafts and Shafts Components
Shafts and Shafts Components
 
Design analysis of the roll cage for all terrain vehicle
Design analysis of the roll cage for all   terrain vehicleDesign analysis of the roll cage for all   terrain vehicle
Design analysis of the roll cage for all terrain vehicle
 
Design and Development of All-Terrain Vehicle : Volume 1
Design and Development of All-Terrain Vehicle : Volume 1Design and Development of All-Terrain Vehicle : Volume 1
Design and Development of All-Terrain Vehicle : Volume 1
 
B029010016
B029010016B029010016
B029010016
 
Design analysis of the roll cage for all terrain
Design analysis of the roll cage for all   terrainDesign analysis of the roll cage for all   terrain
Design analysis of the roll cage for all terrain
 
Design analysis of the roll cage for all terrain
Design analysis of the roll cage for all   terrainDesign analysis of the roll cage for all   terrain
Design analysis of the roll cage for all terrain
 
A presentation on spur gear
A presentation on spur gearA presentation on spur gear
A presentation on spur gear
 

Head Injury Report With and Without Helmet

  • 1. 1 Head & Brain Injury Report With and Without Helmet 01. Introduction: Head injuries are one of the most common injuries after motorcycle crashes. Motorcycles are a significant cause of injury-related fatality and disability. In particular, head injury is a common associated cause of death and long-term disability after a motorcycle crash. Despite these facts, there remains an ongoing controversy as to the survival and disability advantages for riders who wear motorcycle helmets. 02. Methods: The system collects the data from angular rate sensors (3) Channel 01: Rotation in Z-Axis (Wz) Channel 02: Rotation in Y-Axis (Wy) Channel 03: Rotation in X-Axis (Wx) and linear accelerators (3) Channel 04: Linear Acceleration in Z-Axis (az) Channel 05: Linear Acceleration in Y-Axis (ay) Channel 06: Linear Acceleration in X-Axis (ax) The following tests are conducted by using the crash test dummy 2.1. Impact test without helmet The testing machine consists of A. Steel plate, B. Supporter (supports the dummy neck) C. Column (the supporter located on the column moves up and down) D. Drop Tower
  • 2. 2 Fig_01. Impact test without helmet The crash test dummy (Male) 10lb head is connected to the supporter with the help of neck. The drop tower is used to drop head from the height of 50cm and is driven by gravity so that the occipital (Rear of Head) hits steel plate .The data acquisition system collects data at 20 kHz from all channels. 2.2. Impact Test with Helmet Fig_02. Impact Test with Helmet In this test DOT approved motorcycle helmet (Scorpion) has used. Column Supporter Neck Steel Plate
  • 3. 3 03. Results: Fig_03.Angular Acceleration Fig_04.Linear Acceleration Fig_05.BrIC Based on CSDM Fig_06.HIC Table_01 Angular Acceleration (Deg/Sec) Linear Acceleration (g) BrIC HIC UnHelmeted 5129.33 92.21 2.2 1642 Helmeted 3479.07 84.24 1.04 205
  • 4. 4 04. Discussions: The angular acceleration of helmeted motorcyclists (3479.07 Deg/Sec) reduced by 1650.26 Deg/Sec than unhelmeted motorcyclists (5129.33 Deg/Sec).The Brain Injury Criteria (BrIC) number is obtained for unhelmeted motorcyclists and helmeted motorcyclists as 2.2 and 1.04 respectively. From the Fig_05 the probability of brain injury is found at 2.2 BrIC from the curve AIS4 is approximately 0.96 and at 1.04 BrIC from the curve AIS4 is approximately 0.4. The probability of Brain Injury who wear the helmet has fall down from 2.2 (unhelmeted motorcyclists) to 0.4. The linear acceleration of helmeted motorcyclists slightly changed from 92.21 (unhelmeted motorcyclists) to 84.24 .The calculated HIC (Head Injury Criteria) number for unhelmeted motorcyclists is 1642 and for helmeted motorcyclists is 205 ,at this HIC numbers and from AIS2 moderate curve in Fig_06 the probability of head injury is plotted as approximately 98% and approximately 9% respectively. So the helmet lowered the probability of head injury by 89%. 05. Conclusions & Opinions:  The helmet reduced the probability of head and brain injury.  The effectiveness of helmet is more in linear acceleration than angular acceleration (Rotational Brain Injury). RAGAVA REDDY SAMA 305065506