Line: an assembly line composed of several work stations, at which specific operations are performed.
To work effectively, with no work pile-ups between stations, the line must be balanced, e.g. work must get through each workstation in roughly the same amount of time.
Goals:
– To meet production goals,
– Maximize output.
Common Approaches to Line Balancing:
Estimating the number of operators for a given number of stations,
Work element sharing: grouping “activities” per work elements into “stations” or jobs performed by a single person (some times multiple people work in concert at a single station or machine)
Givens: Production goal, operation sequence.
Step 0: (Prior to the analysis) Perform time studies for each operation using experienced operators in order to obtain standard times (SM).
Step 1: Convert the production rate, R, into the same time units as your standard times.
Step 2: (optional) Estimate the total number of operators for the line using Equation (1) (see previous slides)
Step 3: Estimate the number of operators needed for each operation,
Step 4: Identify the slowest operation given the number of operators computed in previous step,
Step 5: Test: have you met the production goal?
Step 6: Adjust. Add more operators, negotiate to reduce the production goal, or try additional methods
To more: http://www.amarnagarpur.uphero.com/
To work effectively, with no work pile-ups between stations, the line must be balanced, e.g. work must get through each workstation in roughly the same amount of time.
Goals:
– To meet production goals,
– Maximize output.
Common Approaches to Line Balancing:
Estimating the number of operators for a given number of stations,
Work element sharing: grouping “activities” per work elements into “stations” or jobs performed by a single person (some times multiple people work in concert at a single station or machine)
Givens: Production goal, operation sequence.
Step 0: (Prior to the analysis) Perform time studies for each operation using experienced operators in order to obtain standard times (SM).
Step 1: Convert the production rate, R, into the same time units as your standard times.
Step 2: (optional) Estimate the total number of operators for the line using Equation (1) (see previous slides)
Step 3: Estimate the number of operators needed for each operation,
Step 4: Identify the slowest operation given the number of operators computed in previous step,
Step 5: Test: have you met the production goal?
Step 6: Adjust. Add more operators, negotiate to reduce the production goal, or try additional methods
To more: http://www.amarnagarpur.uphero.com/
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