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Capstone design
Working place improvement by using “HFE”
- Presenter : Noh il-do 20082460 노일도
20092358 임정욱20092388 정의현
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Contents
1. Motive of Research
3. Project Plan
4. Detailed information -Detailed information -Process(Press / Milling) -Analytical methods
5. Gantt chart
2. What is HFE (Human Factors Engineering)?
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1. Motive of Research
Small and Middle Sized Company with poor work-ing conditions
project
How to solve this situation ?
We use a HFE
Dangerous,Labored work,Uncomfortable
position
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2. What is “HFE”?• HFE is appropriate and necessary skills to
be a good fit for a job is a job design.
Environment Machinery, equipment
Human
Safety, comfort, convenience, effectiveness, efficient
by designing for human
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3.Project plan
Risk Average of
same working
corporates.
Analysis / evaluation
Presented a realistic
improvement
Ergonomic workplace improvement.
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3.Project plan
5. Improvement
4. Evaluation& Selection Solution
1. Collecting Data
2. HFE Analysis
3.compared/analysis to the risk average
Completion of the project
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4.Detailed information
Find out each company risks,
collect data thus which is the best way to improve
system.
ChooseThe Motion Analysis,
SimulationVisit to
company
4week 5week 6week
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4.Detailed informationVisit to company
Company name: Yushin
Type of business: Military Supplies
The number of employees: 50 employees
Sales: Two billion WON
working environment : Poor surroundings
Location: Hanam industrial complex
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4.Detailed informationData arrange(Photos & Videos)
PRESS
MILLING
welding
handle
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4.Detailed information
Chart Title in here
Analytical methodsBase on “HFE”evaluation tools.
Evaluation Tool Type of Business ETC
RULA Position working process ENGLAND/1993
NLE Weight handle working NIOSHA1981/1991
VDT Work Environment CHECKLIST
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5.Gantt chart
Chart Title in here
1 주 2 주 3 주 4 주 5 주 6 주 7 주 8 주 9 주 10 주 11 주 12 주
Schedule
Data Collection
Data Analysis
Compared / analysis to the risk average
Improvement derived
Evaluation & selec-tion
Final presentation
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Contents
1. Data Collection -Question investigation
-Photos & videos
2. Data Comprehensive -Results of the survey data -Harmful factor
3. Data measure & Plan -Detailed information
4. Gantt chart
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Top 10 Basic rules “HFE” Score Card
1. Comfortable fit Uncomfortable fit (Wrist / Neck / Waist)
2. Do not pressure over Power Over power
3. Cut Down on many things Over motion
4. Easy to get STH Can not get to STH
5. A vaild height to work Too low STH
6. Get rid of stress Static posture
7. Reduce on Body pressure Body pressure
8. Clear up Surrounding Not enough to clean up
9. Exercise, Stretching Needs Exercise, Strething
10. A pleasant environment to work Poor lighting equipment
Question investigation1. Motive of Research
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Target : Each workerWorkingEnviro-ment
Do you think self – satisfaction about working place? How about working place?(Dust, Noise, Scent, Temperature) How about average working time?
ETC :
Work poses
inconve-nient
How about work poses? (Shoulder, Wrist, Waist, Leg) Have you ever thought about work poses are uncomfort-able? If your working long time after that any pains? Which part are painful? How about pain degree? : (Top , Middle , Low)
ETC : Improve-
mentRequire-
ment
Now your part can be improve Safty system? Which part already improvement?
Which part do you want to improve?
ETC :
1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart
Question investigation
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1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart
Data arrange(Photos & Videos)
PRESS
MILLING
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Press process
milling Process
milling Process2
0% 10% 20% 30% 40% 50% 60% 70% 80% 90%
1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart
Results of the survey data
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Press
Posture
position of Work In Process
Waist bending
Ways of working
Milling(1)
Posture position of
Work In Process
placement of a work tool
Oil Waist bending
Work rate Workspace
Milling(2)
Posture position of
Work In Process Oil
Waist bending body condition
Ways of working
placement of a work tool
1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart
Harmful factor
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Analysis?(X)
1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart
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Survey
Video record-
ing
Analytical plan 1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart
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Analytical methods
RULA JSIbasis techniques Another
analysis
Graph Analyze
characteristics diagram
Mind Mapping
5W1H
1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart
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Gantt chart
1 주 2 주 3 주 4 주 5 주 6 주 7 주 8 주 9 주 10 주 11 주 12 주
Schedule
Data Collection
Data Analysis
Compared / analysis to the risk average
Improvement derived
Evaluation & selec-tion
Final presentation
1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart
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Contents1. Ergonomic measurement
-RULA -JSI
2. Data Analysis -Graph Analysis
-Characteristics diagram -Mind mapping
3. Gantt chart
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상박 하박
손목1 2 3 4
손목 비틀림 손목 비틀림 손목 비틀림 손목 비틀림
1 2 1 2 1 2 1 2
1
1 1 2 2 2 2 3 3 3
2 2 2 2 2 3 3 3 33 2 3 3 3 3 3 4 4
21 2 3 3 3 3 4 4 42 3 3 3 3 3 4 4 4
3 3 4 4 4 4 4 5 5
3
1 3 3 4 4 4 4 5 5
2 3 4 4 4 4 4 5 53 4 4 4 4 4 5 5 5
4
1 4 4 4 4 4 5 5 5
2 4 4 4 4 4 5 5 53 4 4 4 5 5 5 6 6
51 5 5 5 5 5 6 6 72 5 6 6 6 6 7 7 7
3 6 6 6 7 7 7 7 8
6
1 7 7 7 7 7 7 8 9
2 8 8 8 8 8 9 9 93 9 9 9 9 9 9 9 9
Total score
[3 ]+1+04 more times minute iterations. : +1
Less than 2kg load (intermittent) : +0
1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
RULA Press process
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1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
RULA Press process
목
몸통
1 2 3 4 5 6
다리 다리 다리 다리 다리 다리
1 2 1 2 1 2 1 2 1 2 1 2
1 1 3 2 3 3 4 5 5 6 6 7 7
2 2 3 2 3 4 5 5 5 6 7 7 7
3 3 3 3 4 4 5 5 6 6 7 7 7
4 5 5 5 6 6 7 7 7 7 7 8 8
5 7 7 7 7 7 8 8 8 8 8 8 8
6 8 8 8 8 8 8 9 9 9 9 9 9
Rotated so that the body :+1
Pick the bottom of the legs and feet, so the balance is
good. : +1
Total Score[2]+1+0
4 more times minute iterations. : +1Less than 2kg load (intermittent) : +0
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1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
RULA Press process
1 2 3 4 5 6 7+
1 1 2 3 3 4 5 5
2 2 2 3 4 4 5 5
3 3 3 3 4 4 5 6
4 3 3 3 4 5 6 6
5 4 4 4 5 6 7 7
6 4 4 5 6 6 7 7
7 5 5 6 6 7 7 7
8+ 5 5 6 7 7 7 7
Score A (4) + MUSCLE (1) + FORCE (0) = SCORE(4)
Score B (2)
+
MUSCLE (1)
+
FORCE (0)
= SCORE
(3)Grand Score (3)
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1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
RULA Press process
Action level 3 : A score of 5 or 6 indicates that investigation and changesare requried soon. ( 빠른작업개선 )
Action level 4 : A score of 7 indicates that investigation and changes are required immediately. ( 즉시작업개선 )
# The requirements for action into which the grand scores are divided is summarized into Action levels as follows :
Action level 2 : A score of 3 or 4 indicates that further investigation is needed and changes ma be required. ( 관찰요망 )
Action level 1 : A score of 1 or 2 indicates that postures is acceptable If it is not maintained or repeated for long periods. ( 수용가능 )
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1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
JSI Press process
Rating 작업강도
매회당
긴장기간
백분율 (%)
분당횟수
( 회 )손 / 손목의
자세작업의 속도
하루
작업시간
( 시간 )
1약함
(1)<10(0.5)
<4(0.5)
매우 좋음
(1)매우 느림
(1)<1
(0.25)
2다소 힘듬
(3)10-29
(1)4-8(1)
좋음
(1)느림
(1)1-2
(0.5)
3힘듬
(6)30-49(1.5)
9-14(1.5)
보통
(1.5)보통
(1)2-4
(0.75)
4매우 힘듬
(9)50-79
(2)15-19
(2)나쁨
(2)빠름
(1.5)4-8(1)
5한계치에
가까움
(13)
>80(3)
>20(3)
아주 나쁨
(3)매우 빠름
(2)>8
(1.5)
Assessment results and action steps
JSI = 1 * 0.5 * 2 * 1.5 * 1 * 1.5 = (2.25)
Ⓞ JSI SCORE ≤ 3 : Safe working Ⓞ 4 ≤ JSI SCORE < 7 : Jobs are likely to be caused by upper limb disorders.
Ⓞ JSI SCORE ≥ 7 : Very risky
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1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
RULA Milling process
상박 하박
손목1 2 3 4
손목 비틀림 손목 비틀림 손목 비틀림 손목 비틀림
1 2 1 2 1 2 1 2
1
1 1 2 2 2 2 3 3 3
2 2 2 2 2 3 3 3 3
3 2 3 3 3 3 3 4 4
2
1 2 3 3 3 3 4 4 4
2 3 3 3 3 3 4 4 4
3 3 4 4 4 4 4 5 5
3
1 3 3 4 4 4 4 5 5
2 3 4 4 4 4 4 5 5
3 4 4 4 4 4 5 5 5
4
1 4 4 4 4 4 5 5 5
2 4 4 4 4 4 5 5 5
3 4 4 4 5 5 5 6 6
5
1 5 5 5 5 5 6 6 7
2 5 6 6 6 6 7 7 7
3 6 6 6 7 7 7 7 8
6
1 7 7 7 7 7 7 8 9
2 8 8 8 8 8 9 9 9
3 9 9 9 9 9 9 9 9
Total score
[4 ]+1+04 more times minute iterations. : +1Less than 2kg load (intermittent) : +0
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1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
RULA Milling process
목
몸통
1 2 3 4 5 6
다리 다리 다리 다리 다리 다리
1 2 1 2 1 2 1 2 1 2 1 2
1 1 3 2 3 3 4 5 5 6 6 7 7
2 2 3 2 3 4 5 5 5 6 7 7 7
3 3 3 3 4 4 5 5 6 6 7 7 7
4 5 5 5 6 6 7 7 7 7 7 8 8
5 7 7 7 7 7 8 8 8 8 8 8 8
6 8 8 8 8 8 8 9 9 9 9 9 9
Rotated so that the body :+0
Pick the bottom of the legs and feet, so the balance is
bad. : +2
Total Score[4]+1+0
4 more times minute iterations. : +1Less than 2kg load (intermittent) : +0
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1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
RULA Milling process
1 2 3 4 5 6 7+
1 1 2 3 3 4 5 5
2 2 2 3 4 4 5 5
3 3 3 3 4 4 5 6
4 3 3 3 4 5 6 6
5 4 4 4 5 6 7 7
6 4 4 5 6 6 7 7
7 5 5 6 6 7 7 7
8+ 5 5 6 7 7 7 7
Score A (4) + MUSCLE (1) + FORCE (0) = SCORE(5)
Score B (4)
+
MUSCLE (1)
+
FORCE (0)
= SCORE
(5)Grand Score (6)
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1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
RULA Milling process
Action level 3 : A score of 5 or 6 indicates that investigation and changesare requried soon. ( 빠른작업개선 )
Action level 4 : A score of 7 indicates that investigation and changes are required immediately. ( 즉시작업개선 )
# The requirements for action into which the grand scores are divided is summarized into Action levels as follows :
Action level 2 : A score of 3 or 4 indicates that further investigation is needed and changes ma be required. ( 관찰요망 )
Action level 1 : A score of 1 or 2 indicates that postures is acceptable If it is not maintained or repeated for long periods. ( 수용가능 )
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1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
JSI Milling process
Rating 작업강도
매회당
긴장기간
백분율 (%)
분당횟수
( 회 )손 / 손목의
자세작업의 속도
하루
작업시간
( 시간 )
1약함
(1)<10(0.5)
<4(0.5)
매우 좋음
(1)매우 느림
(1)<1
(0.25)
2다소 힘듬
(3)10-29
(1)4-8(1)
좋음
(1)느림
(1)1-2
(0.5)
3힘듬
(6)30-49(1.5)
9-14(1.5)
보통
(1.5)보통
(1)2-4
(0.75)
4매우 힘듬
(9)50-79
(2)15-19
(2)나쁨
(2)빠름
(1.5)4-8(1)
5한계치에
가까움
(13)
>80(3)
>20(3)
아주 나쁨
(3)매우 빠름
(2)>8
(1.5)
Assessment results and action steps
JSI = 1 * 1 * 1.5 * 2 * 1 * 1.5 = (4.5)
Ⓞ JSI SCORE ≤ 3 : Safe working Ⓞ 4 ≤ JSI SCORE < 7 : Jobs are likely to be caused by upper limb disorders.
Ⓞ JSI SCORE ≥ 7 : Very risky
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1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
Analysis summarized table
Press process Assembly Process
RULA measure-ments 3 Point 6 Point
Result Observed demand Work needs to be improved
JSI measure-ments
2.25 Point 4.5 Point
Result Safe working Visible and poten-tially dangerous.
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Press process milling Process
65%55%
90%
70%
30% 30%20%
15%
Workplace satisfaction Posture satisfactionExperienced pain Whether safety improvements
Statistical graph analysis 1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
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Press processmilling Process
0%
10%
20%
30%
40%
50%
60%
satisfaction
Overall Statistical graph 1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
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Safety index table
Press process Milling Process
RULA measure-ments 3 Point 6 Point
JSI measure-ments 2.25 Point 4.5 Point
Average (Risk) 2.625 Point 5.25 Point
Average (safety index)
10 – (Risk)7.375 Point 4.75 Point
1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
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Press processmilling Process
0123456789
10
7.375
4.750
Safety index
Measurement results graphs safety levels 1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
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Press processmilling Process
0
2
4
6
8
10
Safety index
comparison of the results 1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
Press processmilling
Process
0%
20%
40%
60%
satisfaction
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Gantt chart
1 주 2 주 3 주 4 주 5 주 6 주 7 주 8 주 9 주 10 주 11 주 12 주
Schedule
Data Collection
Data Analysis
Compared / analysis to the risk average
Improvement derived
Evaluation & selec-tion
Final presentation
1. Ergonomic measurement 2. Data Analysis 3. Gantt chart
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Contents
1. Course of Alternative derivation
-Fishbone diagram-Risk and Injurious factor
2. Derive an alternative method- The use of techniques
- Derived risks and alternatives
3. Gantt chart
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Press process
Risk?
Machinery accident
Drwosiness Fatigue
Mechanical failure
Material
Weight
TemperatureBody condition
Proficiency
Work environment
Fishbone diagram
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Milling process(1)
Risk? Safety?
Drowsiness
Machinery accident
Time
keep in step
Work environment
Body condition
Material
Fatigue
Proficiency
Weight
Fishbone diagram
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Fishbone diagram
Milling process(2)
Risk? Safety?
Work environment
Time
keep in step
Mechanical failure
Proficiency
Material
Drowsiness
Weight
Machinery accident
Body condition
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For risk classification
Musculoskeletal
Mechanical
Human
Substance.
Environmental
Administrative
Risk and Injurious factor
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Brain Storming Mind Melding 5W1H
Methodology
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Rating Type Hazards and disasters form
Mechanical- Accidents due to faulty press machine
- Physical damage caused by mechanical noise
Human- Lack of awareness of worker safety
- Physical properties due to the uncomfortable task
Substance.
Environmental
- Cleanliness of press work
- Noise and communication of foreign workers
- Factory of noise and dust
- Slip the bottom shock
- State security tools
Administrative- Establish safety measures
- Safety and lack of safety training
- Accidents due to lack of stretching
Hazards and disasters form Press process
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Measures to improve
- Operator training in preparation for machine fault
- Payment clean earplugs and safety tools
- 5S activities and worker training
- Safety training and risk cover
- Safety management and operator training
- Worker Safety Management Training
- Considering the physical characteristics Tool Supply
- Designation and Safety management personnel and managers communicate
- Managers through training
Derivation of improvement Press process
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Hazards and disasters form Milling Process (1)
Rating Type Hazards and disasters form
Mechanical- Safety device for lack of working tools
- The size of a woman with a big tool
- Physical damage due to incorrect use of tools
Human- Improper working women hagieneun
- Older workers
- Lines due to the psychological insecurity
Substance.
Environmental
- A narrow bench
- Disorganized workspace.
- Lack of awareness of safety equipment
- Loud noise
- Cotton gloves skin damage caused by the absorption of the oil
Administrative- Insufficient number of managers
- Safety and lack of education
- Accidents due to lack of stretching
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Measures to improve
- Provide a tool equipped with safety devices
- Size adjustable providing tools
- On-site safety training
- More extensive than the current bench payments
- Provide clean ear
- Required to provide on-site work gloves
- Working to meet the physical conditions
- Periodically conduct counseling
- Increasing number of on-site management
- Safe exercises carried out at least twice a day
Derivation of improvement Milling Process (1)
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Combined arrangementPress process Milling
Process(1)Milling
Process(2)
RULA measure-ments 3 Point 6 Point 6 Point
JSI measure-ments 2.25 Point 4.5 Point 6 Point
Average (Risk) 2.625 Point 5.25 Point 6 Point
Average (safety index)
10 – (Risk)7.375 Point 4.75 Point 4 Point
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Gantt chart
1 주 2 주 3 주 4 주 5 주 6 주 7 주 8 주 9 주 10 주 11 주 12 주
Schedule
Data Collection
Data Analysis
Compared / analysis to the risk average
Improvement derived
Evaluation & selec-tion
Final presentation
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Thank You!