The document describes an assembly line balancing problem to minimize balance delay. It provides the tasks, precedence relationships, task times, required cycle time of 15 minutes, and the primary rule used to assign tasks to stations (largest number of following tasks). It then shows the 6 workstations determined, tasks assigned at each station according to the rule, remaining unassigned time (balance delay) at each station, and the overall efficiency of 77.78%.
Operations Management : Line BalancingRohan Bharaj
This presentation gives us details about the different methods of Line Balancing.
It also gives an example of Ford Motors and how Line Balancing helped Ford become a powerhouse in the early 1900s
Operations Management : Line BalancingRohan Bharaj
This presentation gives us details about the different methods of Line Balancing.
It also gives an example of Ford Motors and how Line Balancing helped Ford become a powerhouse in the early 1900s
The Rank Positional Weight Method can be used to develop and balance an assembly line. In this method, work elements are divided among workstations depending on the duration of work elements and their precedence position. Copy the link given below and paste it in new browser window to get more information on Ranked Positional Weight Method:-
http://www.transtutors.com/homework-help/industrial-management/line-balancing/ranked-positional-weight-method.aspx
Performance Rating of workers on Assembly Line or Employees in Industry, Systems of Rating: Pace Rating, Westinghouse Rating, Objective Rating, Synthetic Rating
Cellular layout helps us in increasing the productivity with minimizing the cost.
It is the latest technique to minimize the cost and increase the profits without affecting the organization. The concept of LEAN management.
Just in time (JIT) is a production strategy that strives to improve a business' return on investment by reducing in-process inventory and associated carrying costs. Just in time is a type of operations management approach which originated in Japan in the 1950s. It was adopted by Toyota and other Japanese manufacturing firms, with excellent results: Toyota and other companies that adopted the approach ended up raising productivity (through the elimination of waste) significantly.
Types of loading, production & operations managementMahima Mutnuru
Types of Loading-
Infinite Loading
Finite Loading
Also know about Scheduling as Loading is an vital part of Scheduling.
Explained with examples.
Important concept in Production and Operation Management.
Process Characteristics in Operations: Volume, Variety, Flows, Types of Processes & Operations System, continuous flow & intermittent flow system. Process Product Matrix: Job production, batch production, Assembly line & Continuous flow process & production layout Service System Design Matrix: Design of Service system, Service Blue print
Lecture notes for An Introduction to Operations Management (taught by Prof. Christian Terwiesch / University of Pennsylvania / online course at www.coursera.org).
The Rank Positional Weight Method can be used to develop and balance an assembly line. In this method, work elements are divided among workstations depending on the duration of work elements and their precedence position. Copy the link given below and paste it in new browser window to get more information on Ranked Positional Weight Method:-
http://www.transtutors.com/homework-help/industrial-management/line-balancing/ranked-positional-weight-method.aspx
Performance Rating of workers on Assembly Line or Employees in Industry, Systems of Rating: Pace Rating, Westinghouse Rating, Objective Rating, Synthetic Rating
Cellular layout helps us in increasing the productivity with minimizing the cost.
It is the latest technique to minimize the cost and increase the profits without affecting the organization. The concept of LEAN management.
Just in time (JIT) is a production strategy that strives to improve a business' return on investment by reducing in-process inventory and associated carrying costs. Just in time is a type of operations management approach which originated in Japan in the 1950s. It was adopted by Toyota and other Japanese manufacturing firms, with excellent results: Toyota and other companies that adopted the approach ended up raising productivity (through the elimination of waste) significantly.
Types of loading, production & operations managementMahima Mutnuru
Types of Loading-
Infinite Loading
Finite Loading
Also know about Scheduling as Loading is an vital part of Scheduling.
Explained with examples.
Important concept in Production and Operation Management.
Process Characteristics in Operations: Volume, Variety, Flows, Types of Processes & Operations System, continuous flow & intermittent flow system. Process Product Matrix: Job production, batch production, Assembly line & Continuous flow process & production layout Service System Design Matrix: Design of Service system, Service Blue print
Lecture notes for An Introduction to Operations Management (taught by Prof. Christian Terwiesch / University of Pennsylvania / online course at www.coursera.org).
Measurement System Analysis is the first step of the Measure Phase of an improvement project. Before you can pass judgment on the process, you need to ensure that your measurement system is accurate, precise, capable and in control.
This presentation is about how organising is an impotant function in creating sound Organisation Structure. It compares the merits and demerits of various organisation structures.
This presentation is about various Forms of Business Organisations and their features, merits and demerits. It also guides an entrepreuner on how to make a choice among various forms of Business Organisations.
This Article on WORK STUDY covers Part-I , UNIT-II of Industrial Administration and Financial Mangement Syllabus of BE 4/4(EEE/EIE/ECE) of Osmania University
1. Example of Assembly-Line Balancing
Problem: An Assembly consists of the following elements as given in table below.
Task A B C D E F G H I J K L
Immediate Nil A B B B B C,D G E I,F H,J K
Predecessor
Task Time 12 6 6 2 2 12 7 5 1 4 6 7
The production rate required is one assembly every 15 minute. Determine the
minimum no of workstations required so as to minimize the Balance- Delay. Find
Balance Delay Station-wise.
STEP 1. List the sequential relationships among tasks and then draw a precedence diagram
5 min
7min
6 min 7 min.
H
G
6 min
s L
C
e
c. K
2 min
12 min. D
6 min 1 min
A B
2 min 4 min.
I J
E
12 min
F
2. STEP 2. . Calculate the required workstation cycle time
Cycle time is already glready given as so no need to calculate
CYCLE TIME = (PRODUCTION TIME PER DAY) /(OUTPUT PER DAY) = 15 minutes
STEP 3. Calculate the theoretical minimum number of workstations.
NUMBER OF WORK STATIONS = ( SUM OF TOTAL TASK TIMES) / (CYCLE TIME)
= 70 min’s / 15 min’s
= 4.67 ≈5 (rounded)
Number of
Task Following Tasks
STEP 4.Choose a primary rule that will determine how
A 11 tasks are to be assigned to workstations
B 10 For this example, our primary rule is to prioritize
tasks based on the largest number of following tasks.
C or D or E 4 If there is a tie, our secondary rule is to prioritize
tasks in the order of the longest task time.
I,F or G 3 In general, select rules that prioritize tasks
according to the largest number of followers or based on
H or J 2 length of time.
K 1
L 0
STEP 5. Beginning with the first workstation, assign each task, one at a time, until the sum of
the task times is equal to the workstation cycle time or until no other tasks can be assigned
due to sequence or time restrictions.
3. STEP 6. Repeat step 5 for the remaining workstations until all the tasks have been assigned to
a workstation
STEP 7.Evaluate the efficiency of the line balance.
EFFICIENCY = (SUM OF ALL TASK TIMES))/(ACTUAL NO OF WORKSTATIONS)X(CYCLE TIME)
= (70) / (6) X (15)
= 0.778 OR 77. 78 %
STEPS 5& 6. Balance made according to the Largest-Number-of-Following Tasks Rule.
Stations Task Task Time Number of Remaining Feasible Task with Task with
(in minutes) Following Unassigned Remaining Most Longest
Tasks Time Tasks Followers Operating
(Balance- Time
Delay)
Station 1 A 12 11 3 IDLE None
Station 2 B 6 10 9 C,D,E C,D,E C
C 6 4 3 D,E D,E D ,E
D 2 4 1 IDLE None
Station 3 E 2 4 13 F,I, G F,I,G F
F 12 3 1 I
I 1 3 0 IDLE None
Station 4 G 7 3 8 H, J H, J H
H 5 2 3 IDLE None
Station 5 J 4 2 11 K
K 6 1 5 IDLE None
Station 6 L 7 0 8 IDLE None