Capstone design Working place improvement by using “HFE” - Presenter : Noh il-do 노일도 임정욱 정의현

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)?

1. Motive of Research Small and Middle Sized Company with poor workin g conditions project How to solve this situation ? We use a HFE Dangerous, Labored work, Uncomfortable position

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 Machinery, equipment Human Safety, comfort, convenience, effectiveness, efficient by designing for human

3.Project plan Risk Average of same working corporates. Analysis / evaluation Presented a realistic improvement Ergonomic workplace improvement.

3.Project plan 5. Improvement 4. Evaluation& Selection Solution 1. Collecting Data 2. HFE Analysis 3.compared/anal ysis to the risk average Completion of the project

4.Detailed information Find out each company risks, collect data thus which is the best way to improve system. Choose The Motion Analysis, Simulation Visit to company 4week5week6week

4.Detailed information Visit 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

4.Detailed information Data arrange(Photos & Videos) PRESSPRESS MILLINGMILLING weldingwelding handlehandle

4.Detailed information Chart Title in here Base on “HFE”evaluation tools. Evaluation ToolType of BusinessETC RULAPosition working processENGLAND/1993 NLEWeight handle workingNIOSHA1981/19 91 VDTWork EnvironmentCHECKLIST

5.Gantt chart Chart Title in here 1주1주 2주2주 3주3주 4주4주 5주5주 6주6주 7주7주 8주8주 9주9주 10 주 11 주 12 주 Schedule Data Collection Data Analysis Compared / analysis to the risk average Improvement derived Evaluation & selection Final presentation

Contents 1. Data Collection -Question investigation -Photos & videos 3. Data measure & Plan -Detailed information 4. Gantt chart

Top 10 Basic rules“HFE” Score Card 1. Comfortable fitUncomfortable fit (Wrist / Neck / Waist) 2. Do not pressure over PowerOver power 3. Cut Down on many thingsOver motion 4. Easy to get STHCan not get to STH 5. A vaild height to workToo low STH 6. Get rid of stressStatic posture 7. Reduce on Body pressureBody pressure 8. Clear up SurroundingNot enough to clean up 9. Exercise, StretchingNeeds Exercise, Strething 10. A pleasant environment to workPoor lighting equipment Question investigation 1. Motive of Research

Target : Each worker Working Enviroment Do you think self – satisfaction about working place? How about working place?(Dust, Noise, Scent, Temperature) How about average working time? ETC : Work poses inconvenient How about work poses? (Shoulder, Wrist, Waist, Leg) Have you ever thought about work poses are uncomfortable? If your working long time after that any pains? Which part are painful? How about pain degree? : (Top, Middle, Low) ETC : Improvement Requirement 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

1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart Data arrange(Photos & Videos) PRESSPRESS MILLINGMILLING

1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart

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

Analysis? (X) 1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart

Survey Video recordin g Image 1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart

Analytical methods RULA JSI basis techniques Another analysis Graph Analyze characteristics diagram Mind Mapping 5W1H 1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart

Gantt chart 1주1주 2주2주 3주3주 4주4주 5주5주 6주6주 7주7주 8주8주 9주9주 10 주 11 주 12 주 Schedule Data Collection Data Analysis Compared / analysis to the risk average Improvement derived Evaluation & selection Final presentation 1. Data collection 2. data comprehensive 3. Data measure & plan 4. Gantt chart

Contents 1. Ergonomic measurement -RULA -JSI 2. Data Analysis -Graph Analysis -Characteristics diagram -Mind mapping 3. Gantt chart

상박하박 손목 1234 손목 비틀림 Total score [3 ] more times minute iterations. : +1 Less than 2kg load (intermittent) : +0 4 more times minute iterations. : +1 Less than 2kg load (intermittent) : Ergonomic measurement 2. Data Analysis 3. Gantt chart RULA Press process

1. Ergonomic measurement 2. Data Analysis 3. Gantt chart RULA Press process 목 몸통 다리 Rotated so that the body :+1 Pick the bottom of the legs and feet, so the balance is good. : +1 Total Score [2] more times minute iterations. : +1 Less than 2kg load (intermittent) : +0 4 more times minute iterations. : +1 Less than 2kg load (intermittent) : +0

1. Ergonomic measurement 2. Data Analysis 3. Gantt chart RULA Press process Score A (4) + MUSCLE (1) + FORCE (0) = SCORE(4) Score B (2) + MUSCLE (1) + FORCE (0) = SCORE (3) Score B (2) + MUSCLE (1) + FORCE (0) = SCORE (3) Grand Score (3) Grand Score (3)

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 changes are requried soon. ( 빠른작업개선 ) Action level 4 : A score of 7 indicates that investigation and changes are required immediately. ( 즉시작업개선 ) 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 )

1. Ergonomic measurement 2. Data Analysis 3. Gantt chart JSI Press process Rating 작업강도 매회당 긴장기간 백분율 (%) 분당횟수 ( 회 ) 손 / 손목의 자세 작업의 속도 하루 작업시간 ( 시간 ) 1 약함 (1) <10 (0.5) <4 (0.5) 매우 좋음 (1) 매우 느림 (1) <1 (0.25) 2 다소 힘듬 (3) (1) 4-8 (1) 좋음 (1) 느림 (1) 1-2 (0.5) 3 힘듬 (6) (1.5) 9-14 (1.5) 보통 (1.5) 보통 (1) 2-4 (0.75) 4 매우 힘듬 (9) (2) (2) 나쁨 (2) 빠름 (1.5) 4-8 (1) 5 한계치에 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

1. Ergonomic measurement 2. Data Analysis 3. Gantt chart RULA Milling process 상박하박 손목 1234 손목 비틀림 Total score [4 ] more times minute iterations. : +1 Less than 2kg load (intermittent) : +0 4 more times minute iterations. : +1 Less than 2kg load (intermittent) : +0

1. Ergonomic measurement 2. Data Analysis 3. Gantt chart RULA Milling process 목 몸통 다리 Rotated so that the body :+0 Pick the bottom of the legs and feet, so the balance is bad. : +2 Total Score [4] more times minute iterations. : +1 Less than 2kg load (intermittent) : +0 4 more times minute iterations. : +1 Less than 2kg load (intermittent) : +0

1. Ergonomic measurement 2. Data Analysis 3. Gantt chart RULA Milling process Score A (4) + MUSCLE (1) + FORCE (0) = SCORE(5) Score B (4) + MUSCLE (1) + FORCE (0) = SCORE (5) Score B (4) + MUSCLE (1) + FORCE (0) = SCORE (5) Grand Score (6) Grand Score (6)

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 changes are requried soon. ( 빠른작업개선 ) Action level 4 : A score of 7 indicates that investigation and changes are required immediately. ( 즉시작업개선 ) 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 )

1. Ergonomic measurement 2. Data Analysis 3. Gantt chart JSI Milling process Rating 작업강도 매회당 긴장기간 백분율 (%) 분당횟수 ( 회 ) 손 / 손목의 자세 작업의 속도 하루 작업시간 ( 시간 ) 1 약함 (1) <10 (0.5) <4 (0.5) 매우 좋음 (1) 매우 느림 (1) <1 (0.25) 2 다소 힘듬 (3) (1) 4-8 (1) 좋음 (1) 느림 (1) 1-2 (0.5) 3 힘듬 (6) (1.5) 9-14 (1.5) 보통 (1.5) 보통 (1) 2-4 (0.75) 4 매우 힘듬 (9) (2) (2) 나쁨 (2) 빠름 (1.5) 4-8 (1) 5 한계치에 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

1. Ergonomic measurement 2. Data Analysis 3. Gantt chart Analysis summarized table Press processAssembly Process RULA measurements3 Point6 Point Result Observed demand Work needs to be improved JSI measurements 2.25 Point4.5 Point Result Safe workingVisible and potentially dangerous.

1. Ergonomic measurement 2. Data Analysis 3. Gantt chart

Press processMilling Process RULA measurements3 Point6 Point JSI measurements 2.25 Point4.5 Point Average (Risk)2.625 Point5.25 Point Average (safety index) 10 – (Risk) Point4.75 Point 1. Ergonomic measurement 2. Data Analysis 3. Gantt chart

Gantt chart 1주1주 2주2주 3주3주 4주4주 5주5주 6주6주 7주7주 8주8주 9주9주 10 주 11 주 12 주 Schedule Data Collection Data Analysis Compared / analysis to the risk average Improvement derived Evaluation & selection Final presentation 1. Ergonomic measurement 2. Data Analysis 3. Gantt chart

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

Press process Risk? Machinery accident Drwosiness Fatigue Mechanical failure Material Weight Temperature Body condition Proficiency Work environment Fishbone diagram

Milling process(1) Risk?Safety? Drowsiness Machinery accident Time keep in step Work environment Body condition Material Fatigue Proficiency Weight Fishbone diagram

Milling process(2) Risk?Safety? Work environment Time keep in step Mechanical failure Proficiency Material Drowsiness Weight Machinery accident Body condition

For risk classification Musculoskeletal Mechanical Human Substance. Environmental Administrative Risk and Injurious factor

Brain Storming Mind Melding5W1H Methodology

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

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

Hazards and disasters form Milling Process (1) Rating TypeHazards 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

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)

Combined arrangement Press process Milling Process(1) Milling Process(2) RULA measurements3 Point6 Point JSI measurements 2.25 Point4.5 Point6 Point Average (Risk)2.625 Point5.25 Point6 Point Average (safety index) 10 – (Risk) Point4.75 Point4 Point

Gantt chart 1주1주 2주2주 3주3주 4주4주 5주5주 6주6주 7주7주 8주8주 9주9주 10 주 11 주 12 주 Schedule Data Collection Data Analysis Compared / analysis to the risk average Improvement derived Evaluation & selection Final presentation

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