Agenda of Week X. Layout Capacity planning Process selection Linebalancing Review of week 9 13...
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Agenda of Week X. Layout Capacity planning Process selection Linebalancing Review of week 9 1 3 Approaches Purposes : Finishing the capacity planning Understanding the selection of process type Facility layout 2 Product layout Process layout Cellular layout
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Transcript of Agenda of Week X. Layout Capacity planning Process selection Linebalancing Review of week 9 13...
Agenda of Week X. Layout
Capacity planning
Process selection
LinebalancingLinebalancingReview of week 9Review of week 9
1 3
Approaches
Purposes : Finishing the capacity planning Understanding the selection of process type
Facility layoutFacility layout
2
Product layout
Process layout
Cellular layout
Review of Week IX. Capacity and Process
Capacity planning Capacity planning
1
Approaches
Process selectionProcess selection
2
Jobshop
Batch
Repetitive
Continuous
Purposes : Finishing the capacity planning Understanding the selection of process type
Facility Layout (Ch.6)
Configuration of departments, work centers, and equipment Substantial investments
Long term commitment
Significant impact on cost and efficiency
Facility Layout (Ch.6)
Objectives Smooth flow of work, material, and information
Attainment of product quality
Use of workers and space efficiently
Avoidance of bottleneck
Minimization of production cost and time
Elimination of wastes
Facility Layout (Ch.6)
Product layouts For repetitive processing
Standardized processing operations
Smooth, rapid, high volume flow
Standardized layout arranged according to a fixed sequence of tasks
Figure 6.4, 6.5
Facility Layout (Ch.6)
Preventive maintenance
Advantages and disadvantages: p.240
U-shaped layouts
Facility Layout (Ch.6)
Process layouts For nonrepetitive processing
Intermittent flexible processing
Functional grouping and machine shop
General-purpose equipment
Figure 6.7
Advantages and disadvantages: p.242
Facility Layout (Ch.6)
Fixed position layouts Construction sites
Cellular layouts Process layout consisting of cells
Cell processes items that have similar requirements
Each cell is a miniature of product layouts
Table 6.3
Line Balancing (Ch.6)
For product layouts
Arrangement of workers and machines in sequence needed Production line or assembly line
Figure 6.10
Tasks Basic work unit not separable
At least one task is assigned to a workstation
Line Balancing (Ch.6)
Workstation A bunch of tasks
Process of assigning tasks to workstations Equal time requirements
Line Balancing (Ch.6)
Cycle time Moving interval of conveyor
Maximum time allowed at each workstation to complete its set of tasks on a unit
Time interval between final products
Assignment problem of tasks needed to produce final products to workstations
regarding precedence relationship
Line Balancing (Ch.6)
CriteriaTotal task time of each workstation <= cycle timw
Minimization of idle time
Approach Precedence relationship
Figure 6.11
Cycle time calculation
day
day
TPTCT MaxCT
TDP Mi n CT
Line Balancing (Ch.6)
Minimum workstation number
Assignment # of workstations and total idle time
Efficiency
Post review: Reduction of cycle time etc.
min
TPTN
CT
ws
TPTE
N CT
Line Balancing (Ch.6)
Line balancing procedure: Table 6.4
Example 2
LINGO illustration Example 2
Line balancing_ex2.lg4
